CN105588637A - Complicated stable sound field sound pressure testing device - Google Patents
Complicated stable sound field sound pressure testing device Download PDFInfo
- Publication number
- CN105588637A CN105588637A CN201610102582.3A CN201610102582A CN105588637A CN 105588637 A CN105588637 A CN 105588637A CN 201610102582 A CN201610102582 A CN 201610102582A CN 105588637 A CN105588637 A CN 105588637A
- Authority
- CN
- China
- Prior art keywords
- acoustic
- acoustic probes
- chute
- array
- sound source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 112
- 239000000523 sample Substances 0.000 claims abstract description 140
- 238000005259 measurement Methods 0.000 claims abstract description 34
- 230000033001 locomotion Effects 0.000 claims description 35
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 230000030808 detection of mechanical stimulus involved in sensory perception of sound Effects 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000008520 organization Effects 0.000 claims description 5
- 238000003491 array Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000003028 elevating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 31
- 238000004364 calculation method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 14
- 238000001093 holography Methods 0.000 description 9
- 230000003044 adaptive effect Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a complicated stable sound field sound pressure testing device relating to an acoustic testing device. The testing device comprises a driving mechanism I used for driving the whole device to move, an acoustic probe array elevating and rotating driving mechanism II, an acoustic probe array telescopic driving mechanism III, an acoustic probe array IV, an acoustic probe array testing channel correcting driving mechanism V, a sound source reference position measuring column VI, and a point sound source standard sound wave generator VII. The complicated stable sound field sound pressure testing device is advantageous in that the testing device is small and light; the installation and the debugging of the testing device are relatively simple; during the measurement, the labor force and the material force can be greatly reduced, and the labor intensity can be reduced, and in addition, the precision of the measurement data can be increased, and at the same time, the testing device is especially suitable for the on-site operation of the large-scale complicated stable sound field.
Description
Technical field
The present invention relates to a kind of acoustical testing device, particularly a kind of new equipment of stablizing the test of sound field acoustic pressure for complexity.
Background technology
Nearfield acoustic holography is the forward position of acoustic investigation in recent years, by Nearfield acoustic holography (NAH), and can be more accurateGround carries out identification of sound source and location, uses this technology can realize near field sound field rebuilding and visual, therefore, and NAH technologyResearch have very great significance for suppressing noise pollution tool, the key of NAH technology is the sound how recording on holographic facetPress and distribute, and existing testing arrangement is all heavier, adjustment and installation all bothers very much, and workload is very large, needs a large amount ofManpower and material resources, and test result generally can not complete at scene, need to get back to laboratory and process, and is therefore necessaryInvention is a kind of small-sized, light-weighted novel acoustic pressure test new equipment, and this device (is not this in corresponding intelligence control systemBright emphasis, does not describe in detail here, sees the intelligence control system of this device of applying on the same day with the present invention) control under,Energy automatic Debugging, automatic calibration, test automatically, result of calculation, to reduce a large amount of manpowers and material resources, alleviates people automaticallyLabour intensity, can be applicable to the field operation of large complicated stable sound field simultaneously especially.
Summary of the invention
The object of this invention is to provide a kind of small-sized, light-weighted new acoustic pressure testing arrangement, these device installation and debugging all thanSimpler, when measurement, can reduce a large amount of manpowers and material resources, can alleviate people's labour intensity, can improve measurement dataPrecision, simultaneously can be applicable to field operation especially.
For achieving the above object, the technical solution used in the present invention is: this device comprise the motion of whole device driving mechanism I,The lifting of acoustic probes array and rotary drive mechanism II, the acoustic probes array telescopic drive III of mechanism, acoustic probes array IV,Acoustic probes array test channel correcting driving mechanism V, sound source reference position measurement column VI, point sound source standard sonic generatorVII. The driving mechanism I of described whole device motion comprises base, and base has driving wheel and universal wheel, on base, establishesHave electric appliance control box, base centre place is by the chute of bearing holder (housing, cover) VIII and the lifting of acoustic probes array and rotary drive mechanism III is connected, and the lifting of described acoustic probes array and rotary drive mechanism II comprise chute I, are contained in the tooth bar I in chute I,Be provided with stepper motor D5 at chute I near lower end, stepper motor D5 is connected with tooth bar I by gear I, and chute I is also upperBe provided with range finding generating laser II, chute I is connected with stepper motor D4 by gear spoke C bottom, and tooth bar I leans on upper endNearly end section is provided with range finding laser pickoff II, and the end of tooth bar I is provided with screw hole I, stretches by bolt and acoustic probes arrayThe chute II of contracting driving mechanism III is connected; The described acoustic probes array telescopic drive III of mechanism, comprises chute II, is contained in chuteTooth bar II in II, is provided with screw at the left end of chute II, by bolt and the lifting of acoustic probes array and rotary drive mechanismThe tooth bar I of II connects, and chute II left end is provided with stepper motor D6, is connected with tooth bar II by gear II, and the right-hand member of tooth bar II is establishedHave screw hole II, be connected with the main fixed arm of acoustic probes array by bolt, chute II left end is also provided with range finding generating laser III,Tooth bar II right-hand member is provided with range finding laser pickoff III.
The further technical scheme of the present invention: described acoustic probes array IV comprises the main fixed arm of acoustic probes array, acoustic probesThe lower end of the main fixed arm of array is provided with screw, is connected with the tooth bar II of the acoustic probes array telescopic drive III of mechanism by bolt,The main fixed arm of acoustic probes array is provided with screw, divides fixed arm to be connected by bolt with many acoustic probes arrays, and acoustics is visitedHead array divides one end of fixed arm to be provided with screw, is connected with the main fixed arm of acoustic probes array by bolt, and acoustic probes arrayDivide fixed arm to be provided with the through hole of fixing acoustic probes, position, acoustic probes array main fixed arm middle and lower part is by screw and boltBe connected with acoustic probes array test channel correcting driving mechanism supporting bracket, this supporting bracket connects in the time of channel correcting,In the time that acoustic pressure is surveyed, do not connect supporting bracket, position, acoustic probes array main fixed arm middle and lower part is also provided with for detection of acoustics to be visitedThe position sensor whether main fixed arm of head array is connected with acoustic probes array test channel correcting driving mechanism supporting bracketK1, the middle part of the main fixed arm of acoustic probes array is provided with a through hole, for TCH test channel timing stationary sound source reference positionAcoustic probes, is provided with one in through hole simultaneously and whether is positioned at acoustic probes array master for detection of sound source reference position acoustic probesPosition sensor K3 in the through hole of fixed arm.
The present invention is technical scheme further: described acoustic probes array test channel correcting driving mechanism V comprises square frameworkWith standard sound wave generator three-dimensional motion controlling organization, inner side, two limits, square framework left and right is provided with chute III, described standard soundBaud generator three-dimensional motion controlling organization comprises the cross bar that standard sound wave generator is moved up and down, and edge is divided at two ends, cross bar left and rightBe embedded in the chute III on two limits, square framework left and right, cross bar middle part is provided with through hole, be connected with screw mandrel I by bearing holder (housing, cover) IV,Screw mandrel I lower end is connected with the following of square framework by bearing holder (housing, cover) III, and passes being connected with gear width F below of square frame,Screw mandrel I upper end is connected with the top of square framework by bearing holder (housing, cover) V, and square framework is also provided with stepper motor D8 below, passes throughGear spoke F is connected with screw mandrel I, and cross bar lateral center is provided with chute IV, is provided with screw mandrel II in chute IV, screw mandrel II left and right endBe connected with cross bar two side ends by bearing holder (housing, cover) I, bearing holder (housing, cover) VI respectively, cross bar left end is provided with stepper motor D7, by gear width DII is connected with screw mandrel, and screw mandrel II is also connected with the dolly that control sound wave generator does plane motion by bearing holder (housing, cover) VII in addition.
The present invention is technical scheme further: the dolly that described control sound wave generator does plane motion comprises longitudinal rod, verticalBe provided with bearing holder (housing, cover) VII to bar one end and be connected with screw mandrel II, the longitudinal central authorities of longitudinal rod are provided with chute V, are provided with screw mandrel III in chute V,Screw mandrel III two ends are connected with longitudinal rod two ends by bearing holder (housing, cover) IX, bearing holder (housing, cover) II, and screw mandrel III also (does not draw in figure by bearing holder (housing, cover)Go out) be connected with standard sound wave generator, longitudinal rod front end is also provided with stepper motor D9, is connected with screw mandrel III by gear width E.
The present invention is technical scheme further: one of them driving wheel under the base of the driving mechanism I of described whole device motionNear be provided with and drive the stepper motor D1 of its motion, stepper motor D1 is connected with this driving wheel by gear pair A, the end sit down separatelyOne side of a driving wheel is provided with the stepper motor D2 that drives its motion, and stepper motor D2 is by gear pair B and this driving wheel phaseConnect, base one side is also provided with the electromagnetic detection mechanism that controls its direction of motion, and base is provided with a stepper motor D3, passes throughGear is connected with protractor sensor I, and protractor sensor I is provided with range finding laser pickoff I.
The present invention is technical scheme further; Described sound source reference position measurement column VI comprises stretching bar, support bar, sound sourceReference position measurement column pedestal, support bar one end is connected with sound source reference position measurement column pedestal, and the other end is connected with stretching bar,Stretching bar is provided with through hole, for stationary sound source reference position acoustic probes, is also provided with one and joins for detection of sound source in through holeExamine the position sensor K2 whether position acoustic probes is positioned at sound source reference position measurement column VI, on support bar, be also provided with fastening screwBolt, for fixing stretching bar, sound source reference position measurement column pedestal is provided with stepper motor D10, and stepper motor D10 passes through toothWheel is connected with protractor sensor II, establishes the generating laser I of range finding on angulation sensor II,
The present invention is technical scheme further: described standard sonic generator comprises matrix, piezoelectric patches, acoustic tube, acousticsThe fixing elastic rubber ring of probe, piezoelectric patches is connected with extrinsic motivated signal, and acoustic tube is positioned at matrix, and acoustic tube upper end is pressed close toPiezoelectric patches, the fixing elastic rubber ring of lower end and the acoustic probes point sound source standard sonic generator that is connected comprises special raising one's voiceDevice.
Owing to adopting said structure, a kind of complicated sound field acoustic pressure test new equipment of stablizing of the present invention has following beneficial effect:
(1) device is simple, light and handy, and debugging is convenient
A kind of complexity of the present invention is stablized sound field acoustic pressure testing arrangement, and structure is very simple, also very light and handy, has overcome to live in deviceHeavy shortcoming, only needs after simple installation, after all location be all (not to be this under the control of control system with testThe emphasis of invention, is not described in detail at this) automatically carry out, do not need manual intervention, can greatly use manpower and material resources sparingly,Alleviate people's labour intensity, particularly more obvious in complexity large-scale, multi-point sampler is stablized sound field.
(2) can make test data more accurate, reliable
A kind of complexity of the present invention is stablized sound field acoustic pressure testing arrangement, because major part work does not need manual intervention, has reduced artificialError, so that the data of test are more reliable, accurately.
Below in conjunction with drawings and Examples, the present invention is planted and a kind of complicated stablize sound field acoustic pressure testing arrangement and further illustrate.
Brief description of the drawings
Fig. 1 is a kind of complicated sound field acoustic pressure testing arrangement agent structure schematic diagram of stablizing of the present invention;
Fig. 2 is that a kind of complicated sound field acoustic pressure testing arrangement of stablizing of the present invention removes the driving of acoustic probes array test channel correctingThe main apparent direction schematic diagram of mechanism structure;
To be that the present invention is a kind of complicated stablize sound field acoustic pressure testing arrangement and remove acoustic probes array test channel correcting driving machine Fig. 3The left apparent direction schematic diagram of structure structure;
Fig. 4 is a kind of complicated sound field acoustic pressure testing arrangement acoustic probes array test channel correcting driving mechanism knot of stablizing of the present inventionStructure schematic diagram;
Fig. 5 is a kind of complicated stablizing in sound field acoustic pressure testing arrangement acoustic probes array test channel correcting driving mechanism of the present inventionStepper motor D7 is connected side-looking direction schematic diagram with screw mandrel II23;
Fig. 6 is a kind of complicated stablizing in sound field acoustic pressure testing arrangement acoustic probes array test channel correcting driving mechanism of the present inventionStepper motor D8 is connected and overlooks direction schematic diagram with screw mandrel I21;
Fig. 7 is a kind of complicated stablizing in sound field acoustic pressure testing arrangement acoustic probes array test channel correcting driving mechanism of the present inventionStepper motor D9 is connected main apparent direction schematic diagram with screw mandrel III32;
Fig. 8 is a kind of complicated sound field acoustic pressure testing arrangement sound source reference position measurement column structural representation of stablizing of the present invention;
Fig. 9 is a kind of complicated sound field acoustic pressure testing arrangement standard sonic generator schematic diagram of stablizing of the present invention;
Figure 10 is a kind of complicated raw device schematic diagram of sound field acoustic pressure testing arrangement point sound source standard sound wave of stablizing of the present invention;
Figure 11 is a kind of complicated sound field acoustic pressure testing arrangement standard sonic generator array schematic diagram of stablizing of the present invention;
Figure 12 is a kind of complicated another kind of acoustic probes array structure of sound field acoustic pressure testing arrangement schematic diagram of stablizing of the present invention;
Figure 13 is that a kind of complexity of the present invention is stablized the whole device of sound field acoustic pressure testing arrangement and arrived holographic facet to be measured from initial pointSchematic diagram.
Main element label declaration: 1-driving wheel, 2-base, 3-angulation sensor I, 4-range finding laser pickoff I,5-electric appliance control box, 6-range finding generating laser II, 7-chute I, 8-tooth bar I, 9-range finding laser pickoff II,10-screw hole I, 11-range finding generating laser III, 12-chute II, 13-tooth bar II, 14-range finding laser pickoff III,15-screw hole II, the main fixed arm of 16-acoustic probes array, 17-acoustic probes array divide fixed arm, 18-acoustic probes,19-acoustic probes array test is logical proofread and correct driving mechanism supporting bracket, 20-square framework, 21-screw mandrel I, 22-cross bar,23-screw mandrel II, 24-longitudinal rod, 25-standard sound wave generator, 26-gear I, 27-gear pair A, 28-gearSecondary B, 29-gear II, 30-universal wheel, 31-gear pair C, 32-screw mandrel III, 33-bearing holder (housing, cover) I, 34-gearSecondary D, 35-bearing holder (housing, cover) II, 36-gear pair E, 37-bearing holder (housing, cover) III, 38-gear pair F, 39-set bolt, 40-angulation sensor II, 41-range finding generating laser device I, 42-support bar, 43-stretching bar, 44-sound source reference bitPut acoustic probes, 45-sound source reference position measurement column pedestal, 46-through hole, 47-bearing holder (housing, cover) IV, 48-bearing holder (housing, cover) V,49-bearing holder (housing, cover) VI, 50-bearing holder (housing, cover) VII, 51-bearing holder (housing, cover) VIII, 52-chute III, 53-chute IV, 54-chute V,55-bearing holder (housing, cover) IX, 56 through holes, 57-electromagnetic detection mechanism, 58-sound absorption cylinder, the fixing elastic rubber ring of 59-probe,60-piezoelectric patches, 61-matrix, 62-point sound source standard sonic generator.
Detailed description of the invention
As shown in Figures 1 to 10, a kind of complicated sound field acoustic pressure testing arrangement of stablizing of the present invention, this device comprises whole device fortuneMoving driving mechanism I, the lifting of acoustic probes array and rotary drive mechanism II, the acoustic probes array telescopic drive III of mechanism,Acoustic probes array IV, acoustic probes array test channel correcting driving mechanism V, sound source reference position measurement column VI, some soundSource standard sonic generator VII. The driving mechanism I of described whole device motion comprises that base 2, base 2 have driving wheel 1With universal wheel 30, on base 2, be provided with electric appliance control box 5, electric appliance control box 5 is for placing control circuit board, and base 2 hits exactlyCentre place is connected with the chute I7 of the lifting of acoustic probes array and rotary drive mechanism II by bearing holder (housing, cover) VIII51, and described acoustics is visitedHead array lifting and rotary drive mechanism II comprise chute I7, are contained in the tooth bar I8 in chute I7, and tooth bar I8 is along chute I7 can move up and down in chute I7, are provided with stepper motor D5 at chute I7 near lower end, and stepper motor D5 passes through toothWheel I26 is connected with tooth bar I8, when motor D 5 is done rotating campaign, by gear I26, power is passed to tooth bar I8, drivesTooth bar I8 moves up and down, thereby can drive acoustic probes array IV to rise or decline, and is also provided with range finding and swashs on chute I7Optical transmitting set II6, chute I7 is connected with stepper motor D4 by gear spoke C31 bottom, a gear in gear spoke C31I7 is connected with chute, and another gear is connected with stepper motor D4, when stepper motor D4 does rotating campaign, passes through gearSpoke C31 passes to chute I7 power, makes chute I7 energy left rotation and right rotation, thereby drives acoustic probes array IV to rotate, canAdjust the orientation of acoustic probes array IV, tooth bar I8 upper end is provided with range finding laser pickoff II9, range finding laser near end sectionTransmitter II6 coordinates with range finding laser pickoff II9's, is mainly the distance that rises or decline for measuring tooth bar I8,Measure the distance that acoustic probes array IV rises or declines, the end of tooth bar I8 is provided with screw hole I 10, by bolt and acousticsThe chute II12 of the linear transducer array telescopic drive III of mechanism is connected; The described acoustic probes array telescopic drive III of mechanism, comprises chuteII12, is contained in the tooth bar II13 in chute II12, and tooth bar II13 can do and protract or rear shrink movement in chute II12, is slidingThe left end of groove II12 is provided with screw, is connected with the tooth bar I8 of the lifting of acoustic probes array and rotary drive mechanism II by bolt,Chute II12 left end is provided with stepper motor D6, is connected with tooth bar II13 by gear II29, and stepper motor D6 does rotating campaignTime, by gear II29, power is passed to tooth bar II13, drive tooth bar II13 to protract or retrude, thereby drive acoustic probes battle arrayRow IV's protracts or retrude, and the right-hand member of tooth bar II13 is provided with screw hole II 15, by bolt and the main fixed arm 16 of acoustic probes arrayBe connected, chute II12 left end is also provided with range finding generating laser III11, and tooth bar II13 right-hand member is provided with range finding laser pickoff III14,Range finding generating laser III11 coordinates with the laser pickoff III14's that finds range, is mainly used to measure that tooth bar II13 protracts or retrudeDistance, measures protracting or the distance of retrude of acoustic probes array IV.
Described acoustic probes array IV comprises the main fixed arm 16 of acoustic probes array, the lower end of the main fixed arm 16 of acoustic probes arrayBe provided with screw, be connected with the tooth bar II13 of the acoustic probes array telescopic drive III of mechanism by bolt, acoustic probes array master is solidDetermine arm 16 and be provided with screw, divide fixed arm 17 to be connected by bolt with many acoustic probes arrays, acoustic probes array divides fixingOne end of arm 17 is provided with screw, is connected by the main fixed arm 16 of bolt and acoustic probes array, and acoustic probes array divides fixed arm17 are provided with the through hole of fixing acoustic probes 18, the main fixed arm of acoustic probes array 16 positions, middle and lower part by screw and bolt andAcoustic probes array test channel correcting driving mechanism supporting bracket 19 is connected, and this supporting bracket connects in the time of channel correcting,In the time that acoustic pressure is surveyed, do not connect supporting bracket, the main fixed arm of acoustic probes array 16 positions, middle and lower part are also provided with for detection of acousticsThe position whether main fixed arm 16 of linear transducer array is connected with acoustic probes array test channel correcting driving mechanism supporting bracket 19Sensor K1, the middle part of the main fixed arm 16 of acoustic probes array is provided with a through hole 46, for TCH test channel timing fixed soundWhether source reference position acoustic probes 44, be provided with one in through hole simultaneously and be positioned at for detection of sound source reference position acoustic probes 44Position sensor K3 in through hole 46, acoustic probes 18 is mainly for detection of acoustic signal, and it exports acoustics in connected control systemAmplifying unit in TCH test channel unit (be mainly to describe testing arrangement here, control system is not described in detail here).
Described acoustic probes array test channel correcting driving mechanism V comprises square framework 20 and standard sound wave generator three-dimensionalMotion control mechanism, inner side, two limits, square framework 20 left and right is provided with chute III52, the three-dimensional motion of described standard sound wave generatorControlling organization comprises the cross bar 22 that standard sound wave generator 25 is moved up and down, and cross bar 22 two ends, left and right are divided and are embedded in square frameIn the chute III52 on frame 20 two limits, left and right, cross bar 22 middle parts are provided with through hole, be connected with screw mandrel I21 by bearing holder (housing, cover) IV47,Screw mandrel I21 lower end is connected with the following of square framework 20 by bearing holder (housing, cover) III37, and passes the following and gear of square frame 20Width F38 is connected, and screw mandrel I21 upper end is connected with the top of square framework 20 by bearing holder (housing, cover) V48, and square framework 20 below alsoBe provided with stepper motor D8, be connected with screw mandrel I21 by gear spoke F38, gear and stepper motor D8 phase in gear spoke F38Connect, a gear is connected with screw mandrel I21, when stepper motor D8 does rotating campaign, can power be passed by gear spoke F38Give screw mandrel I21, drive screw mandrel I21 motion, thereby drive cross bar 22 to move up and down, cross bar 22 lateral center are provided with chuteIV53, is provided with screw mandrel II23 in chute IV53, screw mandrel II23 left and right end is respectively by bearing holder (housing, cover) I33, bearing holder (housing, cover) VI49 and horizontal strokeBar 22 two side ends are connected, and cross bar 22 left ends are provided with stepper motor D7, be connected with screw mandrel II23 by gear width D34, and screw mandrel in additionII23 is also connected with the dolly that control sound wave generator does plane motion by bearing holder (housing, cover) VII50, a tooth in gear width D34Wheel is connected with stepper motor D7, and another gear is connected with II23, when stepper motor D7 does rotating campaign, by gear widthD34 passes to screw mandrel II23 power, drives screw mandrel II23 motion, thereby drives control sound wave generator to do the little of plane motionCar does transverse movement.
The dolly that described control sound wave generator does plane motion comprises longitudinal rod 24, and longitudinal rod 24 one end are provided with bearing holder (housing, cover) VII50 are connected with screw mandrel II23, and the longitudinal central authorities of longitudinal rod 24 are provided with chute V54, are provided with screw mandrel III32, screw mandrel III in chute V5432 two ends are connected with longitudinal rod 24 two ends by bearing holder (housing, cover) IX55, bearing holder (housing, cover) II35, and screw mandrel III32 also passes through bearing holder (housing, cover) (in figureDo not draw) be connected with standard sound wave generator 25, longitudinal rod 24 front ends are also provided with stepper motor D9, by gear width E36 and silkBar III32 is connected, and in gear width E36, a gear is connected with stepper motor D9, another gear and screw mandrel III32, stepping electricityWhen machine D9 does positive and negative motion, by gear width, E36 passes to screw mandrel III32 power, drives screw mandrel III32, thus drive standardSound wave generator 25 does lengthwise movement.
Near 2 times one of them driving wheels 1 of base of the driving mechanism I of described whole device motion, be provided with and drive its motionStepper motor D1, stepper motor D1 is connected with this driving wheel 1 by gear pair A27, gear and stepping electricity in gear pair A27Machine D1 is connected, and another gear is connected with driving wheel 1, and by gear pair A27, stepper motor D1 passes to driving wheel 1 power,Make its motion, the side that another driving wheel 1 under 2 is sat at the end is provided with the stepper motor D2 that drives its motion, and stepper motor D2 is logicalCross gear pair B28 and be connected with this driving wheel 1, in gear pair B28, a gear is connected with stepper motor D2, another gear withAnother driving wheel 1 is connected, and by gear pair B28, stepper motor D2 passes to driving wheel 1 power, makes its motion, base 2One side is also provided with the electromagnetic detection mechanism 57 that controls its direction of motion, and base 2 is provided with a stepper motor D3, passes through gearI3 is connected with protractor sensor, and protractor sensor I3 is provided with range finding laser pickoff I4, and stepper motor D2's revolvesTranshipment is moving can move by angulation sensor I3, thereby drives range finding laser pickoff I4 motion.
Described sound source reference position measurement column VI comprises stretching bar 43, support bar 42, sound source reference position measurement column pedestal 45,Support bar 42 one end are connected with sound source reference position measurement column pedestal 45, and the other end is connected with stretching bar 43, and support bar 42 is oneIndividual hollow circular cylinder, insert in support bars 42 boom 43 one end, position, can up-down stretch, stretching bar 43 is provided with through hole 56,For stationary sound source reference position acoustic probes 44, in through hole 56, be also provided with one for detection of sound source reference position acoustic probesWhether 44 be positioned at the position sensor K2 of sound source reference position measurement column VI, is also provided with fastening bolt 39 on support bar 42, forFixing stretching bar 42, sound source reference position measurement column pedestal 45 is provided with stepper motor D10, stepper motor D10 by gear withProtractor sensor II40 is connected, and establishes the generating laser I41 of range finding, the fortune of stepper motor DI0 on angulation sensor II40Move and can drive angulation sensor II4C, thereby can drive the generating laser I41 of range finding to move, generating laser I41With range finding laser pickoff I4, can measure sound source reference position and testing arrangement base 2 centers, acoustic holography to be measured placeDistance, protractor sensor I3 and angulation sensor II40, can interception; Described standard sonic generator 25 comprisesMatrix 61, piezoelectric patches 60, acoustic tube 58, the fixing elastic rubber ring 59 of acoustic probes, wherein piezoelectric patches 60, at extrinsic motivatedSignal function, produces sound wave, and acoustic tube (58) is positioned at matrix (61), and piezoelectric patches (60) is pressed close in acoustic tube (58) upper end,Lower end is connected with the fixing elastic rubber ring (59) of acoustic probes, and acoustic tube 58 is to be made by sound-absorbing material, can prevent sound waveReflection, channel correcting when test when acoustical testing, be enclosed within acoustic probes, acoustic probes is fixed elastic rubber ring 59,Doing acoustical testing, fixing acoustic probes, and sealing, point sound source standard sonic generator 62 comprise one specialLoudspeaker, under additional pumping signal effect, produce sound source.
Also can use standard sonic generator array as the standard sonic generator described in a kind of variation, as Figure 11, thisSample is at TCH test channel timing, and correction time is shorter, but necessarily requires the performance of each standard sonic generator in array to beThe same, Figure 12's is another acoustic probes array structure schematic diagram of the present invention in addition, this acoustic probes array pointFixed arm is spherical arc shape, is particularly suitable for the measurement of spherical wave, is therefore not limited to form cited in above-mentioned example, onlyThe conversion that will do within the scope of the invention all belongs to category of the present invention, and Figure 13 is that the present invention is a kind of complicated stable in additionThe whole device of sound field acoustic pressure testing arrangement arrives the schematic diagram of holographic facet to be measured from initial point.
The intelligence control system that a kind of complexity of the present invention is stablized sound field acoustic pressure testing arrangement (is not emphasis of the present invention, hereJust brief description) comprise with lower module: control centre's module, accessory module, with upper machine interface module, electromagnetic detection mouldPiece, range finder module, acoustic pressure measuring and calculation module, whole device motion driver module, the lifting of acoustic probes array and rotation are drivenDynamic model piece, acoustic probes array telescopic drive module, acoustic probes array test channel correcting driving mechanism driver module, letterBreath input display module, its control procedure is that system powers on, and first carries out control centre's module initialization, then sentences initialChange whether success, as unsuccessful, judge whether overtimely, if not overtime, continue judge to initialize whether success, as surpassedTime display system mistake, if initialized successfully, control centre's module is sent initialization command and sends to each sub-moduleReply confirmation signal, then judge whether to receive whole answer signals, as all do not received, judge to initialize whether surpassTime, as overtime, display system mistake, if not overtime, continue to judge whether to receive whole answer signals, as receives,The system that enters is ready, can carry out acoustic pressure test, provides and " please input sound source reference position and acoustic holography face to be measured centerThe prompting of point coordinates ", then judge whether the input of host computer coordinate data, if do not had, show input with regard to judgement informationWhether module has coordinate input, if any, enter acoustic probes array coordinate setting point flow process, as do not have, continue judgementWhether host computer has coordinate data input, if host computer has coordinate input, also enters the coordinate setting of acoustic probes array and dividesFlow process, after an acoustic probes array coordinate setting point flow process finishes, enters acoustic pressure measuring and calculation point flow process, acoustic pressure measuring and calculationAfter point flow process finishes, judge whether test assignment finishes, as finished, task finishes, as entered in addition next measuring point,Turn back to and judge that whether host computer has coordinate data input, enters test assignment next time.
Described acoustic probes array coordinate setting shunting process control process is to be first sound source reference position and acoustics to be measuredThe input of holographic facet center coordinate, adds that by these two coordinates the size of device obtains place to be measured device pedestal 2 central point institutesCoordinate, then judge whether sound source reference position measurement column VI is positioned at sound source reference position, if not, providing " pleaseSound source reference position measurement column is placed in to sound source reference position " information, again judge that sound source reference position measures simultaneouslyWhether post is positioned at sound source reference position, in this way, judges from sound source reference position to the seat at base to be measured 2 central point placesWhether the electromagnetism thin wire between mark sets up, as does not have, and provides the information of " asking money to lay electromagnetism thin wire ",As set up, please judge whether whole testing arrangement is positioned at sound source reference position, if not, utilize in accessory moduleStraighforward operation handle input signal Driving Stepping Motor D1, D2 drives whole testing arrangement to arrive near acoustic holography face to be measuredPosition, in this way, judged whether remote-control handle signal input, if any the straighforward operation handle utilizing in accessory moduleInput signal Driving Stepping Motor D1, D2 makes whole testing arrangement arrive near the position of acoustic holography face to be measured, as does not have, and isThe automatic Driving Stepping Motor D1 of signal that system feeds back according to electromagnetic detection module, it is to be measured that D2 arrives whole testing arrangementNear position acoustic holography face, then Driving Stepping Motor D3, D10 drive protractor sensor I3, angulation sensing II40Rotate, the upper range finding of range finding laser pickoff I4, angulation sensor II40 on protractor sensing I3 is apart from generating laser I41 all rotate thereupon, and the signal of the generating laser I41 that makes to find range can be received by range finding laser pickoff I4, measures sound source ginsengExamine the distance at position and whole device center chassis place, add the angle of angulation sensor I3, angulation sensor II40, surveyGo out orientation, add the size of coordinate and the device of sound source reference position, calculate to be measured by space coordinate transformation formulaAcoustic holography center coordinate, then judge acoustic holography to be measured center coordinate and setting identical, as identical knotBundle, if not identical, logical Driving Stepping Motor D3 adjusts the orientation of acoustic probes array, by Driving Stepping Motor D4Regulate the height of acoustic probes array IV, regulate the protract length of retrude of acoustic probes array by Driving Stepping Motor D5,Coordinate is proofreaied and correct, if also do not reach requirement, more suitably proofreaied and correct again by Driving Stepping Motor D1, D2, makeAcoustic holography face to be measured center coordinate is identical with setting coordinate, and in stepper motor D4, D5 work, range finding swashsLight II transmitter, range finding laser II receiver, range finding laser III transmitter, range finding laser III receiver are also started working, rightHighly, length is measured.
Described pressure measuring and calculation step point flow process is, after an acoustic probes array coordinate setting point flow process finishes, enters this flow process,The first step of this flow process is to enter TCH test channel aligning step point flow process, after a TCH test channel aligning step point flow process finishes, and soundPress measuring and calculation module high speed multiple branch circuit selector switch to point to point sound source standard sonic generator 62, then judge sound source referenceWhether position acoustic probes 44 gets back to sound source reference position measurement column VI, if not, provides " please put back to " prompting letterBreath, in this way, a standard frequency control word is sent in the internal control unit of acoustic pressure measuring and calculation module, and this signal produces oneIndividual standard acoustic signals, this signal is(signal is not carried out to power amplification for convenience of explanation here,Signal amplifies, and has just added a coefficient, and algorithm is the same, and in formula, k is wave number, the distance that r is acoustic propagation), soRear startup f+1 road TCH test channel, wherein f road connects sound source reference position TCH test channel, N of each drive test examination lane testingData, then use standard acoustic signalsCentrifugal pump as the reference input of adaptive algorithm, standard sound waveSignal adds the centrifugal pump of ambient noise signal y=u+noise, and the signal of each TCH test channel collection output is as self adaptationThe source signal of algorithm is inputted, and determines the initial value of step-length and adaptive algorithm weights, the error of utilizing adaptive algorithm formula to drawSignal e (n) is exactly the centrifugal pump noise of the ambient noise noise of each TCH test channell(n), wherein l is 0 to f, and n is0 to N, then close DDS output channel in acoustic pressure measuring and calculation module, carry out acoustic pressure actual measurement, in the work of lock-out pulseUnder, each TCH test channel gathers p group data xFκ(n), each organizes N data, if these p group data are at identical ringUnder border, measure p time gained, uu=0, if measure p group data, uu=1, the wherein model of F in once gatheringEnclose for 0-f, κ is 1 to p, and n is 0 to N, then enters actual measurement acoustic pressure calculation procedure point flow process, actual measurement acoustic pressure calculation procedureAfter point flow process finishes, an acoustic pressure measuring and calculation point flow process finishes.
Described TCH test channel aligning step divides flow process, and the control procedure step of this flow process is: the line number of input acoustic probes arrayWith the number f+1 of columns and acoustic probes, and need the frequency number h proofreading and correct, juxtaposition variable F=f, τ=h, soJudge whether sound source reference position acoustic probes 44 is positioned at the demarcation place through hole 46 of the main fixed arm 16 of acoustic probes array IV afterwardsPlace, if not, provides the information of " please be placed in demarcation place ", and in this way, criterion letter sound wave generator 25 isThe no initial position that is positioned at, if not, produces standard sound wave by acoustic probes array test channel correcting driving mechanism VDevice 25 is positioned at initial position, and then judgement, and in this way, the internal control unit of acoustic pressure measuring and calculation module is surveyed to acoustic pressureDDS interface unit, TCH test channel unit in module, the correlation units such as standard sound wave generation unit send replys confirmation signal,Then judge whether to receive whole answer signals, if not, judge whether repeatedly to retransmit, repeatedly retransmit in this way, provideThe information of " acoustic pressure measuring and calculation module is made mistakes ", otherwise detect whether receive whole confirmation answer signals again, in this way,Whether determination frequency number τ variable is 0 (whether the frequency number that will proofread and correct tests), as be 0, and flow process finishes,As be not equal to 0, the high-velocity electrons selector switch of acoustic pressure measuring and calculation module connects to standard wave generator 25, simultaneouslyF=F-1, τ=τ-1, sends τ frequency control word by the frequency of prior regulation, produces a standard dextrorotation signal(this is complex signal, gets its imaginary part with regard to dextrorotation signal, lower same), then judges that whether F is-1, as be-1, turn back to and detect whether τ is 0, if not being 0, acoustic probes array test channel correcting driving mechanism V makes standardThe raw device 25 of sound wave is enclosed within the acoustic probes on F road, starts the correction on F road, under lock-out pulse is synchronous, gathers NData, draw this signalDiscrete data uF(n), these data with given FREQUENCY CONTROLThe standard signal that word provides(the raw device of standard sound wave is to be directly enclosed within acoustic probes, and the distance r of acoustic propagation is nearSeemingly equal 0, signal is not amplified simultaneously, so acoustic signals is identical with excitation, if signal has amplified, adds one and repairPositive coefficient, algorithm is the same, because passage amplitude correction coefficient below can be proofreaied and correct amplitude, does not examine hereThe phase delay of considering the piezoelectric patches 60 in sound wave generator 25, because after signal stabilization, this phase angle is very little, Er QiekeCan calculate according to piezoelectric formula, can compensate by circuit, also can compensate by algorithm, thisIn for convenience of explanation, first do not consider this phase delay, in addition because generally relative phase angle all, all phase angles,Be the phase angle of relative sound source reference position, the phase angle that utilizes each TCH test channel to try to achieve deducts sound source ginseng position measurementThe phase angle of passage, owing to being same piezoelectric patches, so the phase delay that piezoelectric patches produces has just been removed) discrete letterNumber Lτ(n) cross-spectrum carries out, from spectrum, drawing the phase retardation of this TCH test channel to two signals simultaneouslyWherein F is 0 to f, T is the cycle,μ is signal delay time, more than acos represents to negate, revolves, and f road is the TCH test channel of sound source with reference to cursor position, its delayPhase place isPassage amplitude rectification is that coefficient isτ is that l is to h.
Described acoustic pressure Actual measurement step point flow process is: actual measurement acoustic pressure calculation process starts, input uu, noisel(n)，xFκ(n)，Wherein l, F is 0 to f, κ is that l is to p, then with the ambient noise noise of each road TCH test channell(n) be with reference to letterNumber input, with xFκ(n) as source signal input, determine adaptive step-length, the initial value with weights, utilizes adaptive algorithmThe error signal e (n) of obtaining, just can obtain the sound source radiation signal s that each road TCH test channel detectsFκ(n) (this signalThrough ambient noise signal is peeled off, become comparatively clean signal), wherein F is 0 to f, κ is 1 to p, then rightIt is h that first group of data of each road TCH test channel collection are carried out Fast Fourier Transform (FFT)F1＝fft(sF1(n)), then find out frequency domainThe corresponding frequency of data medium wave peak and roughly estimated value of amplitude, then utilize energy barycenter method to proofread and correct frequency spectrum, dividesDo not utilize formula
Frequency and amplitude are proofreaied and correct, whereinM generally gets 1 or 2, XkFor Fast Fourier Transform (FFT) intermediate frequency spectrumThe complex value of k position spectrum in figure, KtFor energetic coefficient of restitution, KtChoose general relevantly with choosing of window letter, use HanningWhen window, generally get 8/3, δFτFor passage amplitude correction coefficient, TCH test channel is proofreaied and correct the passage amplitude rectification system that point flow process is tried to achieveNumber, thus the amplitude A of the frequency component sound wave of sound source spoke signal on each TCH test channel tried to achieveFτWith frequency wFτ，Wherein F is 0 to f, and τ is 1 to m, and what N fast Fourier calculated counts, and utilizes tried to achieve frequency and amplitude after this EOSThe m of each a TCH test channel frequency component is asked to phase angle, the frequency and the amplitude composition m that utilize each passage to obtainIndividual simple signal,This signal discrete turns to gFτ(n), then this m simple signal respectively with thisThe p group data cross-spectrum of passage, utilizing signal in orthogonal is 0, and constant in energy principle, just can be in the hope of this TCH test channel at thisUnder frequency, acoustic signals is at the p of measuring point group phase angle:
Wherein F is 0 to f, and κ is 1 to p, and τ is 1 to m. Then variable uu is judged, if uu=0,Wherein F is 0 to f, and κ is 1 to p, and τ is 1 to m, if uu ≠ 0,Wherein F is 0 to f, and κ is 1 to p, and τ is 1 to m, and Δ t is the interval of accepting and believing of p group data adjacent set data group, soAfter this phase angle add TCH test channel phase compensation angle, just obtain the true phase place of each frequency component measuring point in acoustic radiation signalAngle,ΨfτFor the phase angle of sound source reference position TCH test channel, wherein F is 0 to f, and τ is1 to m, as obtained the phase angle of 0 Daof-1 road TCH test channel with respect to sound source reference position, can use each drive testThe phase angle of examination passage deducts the phase angle of sound source reference position, and this phase angle and time-independent, only with the distance of Acoustic Wave PropagationFrom relevant, that is: ΠFτ＝ΨFτ-ΨfτSo far entirely go out each frequency component sound wave of whole TCH test channels phase place, frequency,Amplitude: ΠFτ、wFτ、AFτ, wherein F is 0 to f-1, τ is 1 to m, above TCH test channel aligning step divide flow process and acoustic pressure to surveyCalculation procedure point flow process has all been used variable τ, and wherein channel correcting flow process τ is 1 to h, and acoustic pressure Actual measurement stepIn point flow process, τ is 1 to m, but in the time of actual measurement, gets h=m.
Claims (8)
1. complexity is stablized a sound field acoustic pressure testing arrangement, it is characterized in that this device comprise the motion of whole device driving mechanism I,The lifting of acoustic probes array and rotary drive mechanism II, the acoustic probes array telescopic drive III of mechanism, acoustic probes array IV,Acoustic probes array test channel correcting driving mechanism V, sound source reference position measurement column VI, point sound source standard sonic generatorVII; The driving mechanism I of described whole device motion comprises that base (2), base (2) have driving wheel (1) and universal wheel(30), be provided with electric appliance control box (5) on base (2), base (2) centre place is by bearing holder (housing, cover) VIII (51) and acoustic probesThe chute I (7) of array lifting and rotary drive mechanism II is connected; The lifting of described acoustic probes array and rotary drive mechanism IIComprise chute I (7), be contained in the tooth bar I (8) in chute I (7), be provided with stepper motor D5 at chute I (7) near lower end,Stepper motor D5 is connected with tooth bar I (8) by gear I (26), is also provided with range finding generating laser II (6) on chute I (7),Chute I (7) is connected with stepper motor D4 by gear spoke C31 bottom, and tooth bar I (8) upper end is provided with near end sectionRange finding laser pickoff II (9), the end of tooth bar I (8) is provided with screw hole I (10), flexible by bolt and acoustic probes arrayThe chute II (12) of driving mechanism III is connected; The described acoustic probes array telescopic drive III of mechanism, comprises chute II (12), dressTooth bar II (13) in chute II (12), is provided with screw at the left end of chute II (12), by bolt and acoustic probes arrayThe tooth bar I (8) of lifting and rotary drive mechanism II is connected, and chute II (12) left end is provided with stepper motor D6, by gear II(29) be connected with tooth bar II (13), the right-hand member of tooth bar II (13) is provided with screw hole II (15), by bolt and acoustic probes array masterFixed arm (16) is connected, and chute II (12) left end is also provided with range finding generating laser III (11), and tooth bar II (13) right-hand member is provided with surveyApart from laser pickoff III (14).
2. a kind of complexity as claimed in claim 1 is stablized sound field acoustic pressure testing arrangement, it is characterized in that described acoustic probes battle arrayRow IV comprises the main fixed arm of acoustic probes array (16), and the lower end of the main fixed arm of acoustic probes array (16) is provided with screw, passes throughBolt is connected with the tooth bar II (13) of the acoustic probes array telescopic drive III of mechanism, on the main fixed arm of acoustic probes array (16), establishesHave screw, divide fixed arm (17) to be connected by bolt and many acoustic probes arrays, acoustic probes array divides fixed arm (17)One end is provided with screw, is connected with the main fixed arm of acoustic probes array (16) by bolt, and acoustic probes array divides fixed arm (17)Be provided with the through hole of fixing acoustic probes (18), the main fixed arm of acoustic probes array (16) position, middle and lower part is by screw and boltBe connected with acoustic probes array test channel correcting driving mechanism supporting bracket (19), this supporting bracket connects in the time of channel correctingUpper, in the time that acoustic pressure is surveyed, do not connect supporting bracket, the main fixed arm of acoustic probes array (16) position, middle and lower part is also provided with for inspectionSurvey the main fixed arm of acoustic probes array (16) whether with acoustic probes array test channel correcting driving mechanism supporting bracket (19)Connected position sensor K1, the middle part of the main fixed arm 16 of acoustic probes array is provided with a through hole (46), for TCH test channelTiming stationary sound source reference position acoustic probes (44) is provided with one for detection of sound source reference position acoustics in through hole simultaneouslyWhether probe (44) is positioned at the position sensor K3 of through hole (46).
3. a kind of complexity as claimed in claim 1 is stablized sound field acoustic pressure testing arrangement, it is characterized in that described acoustic probes battle arrayRow TCH test channel is proofreaied and correct driving mechanism V and is comprised square framework (20) and standard sound wave generator three-dimensional motion controlling organization, squareInner side, two limits, framework (20) left and right is provided with chute III (52), and described standard sound wave generator three-dimensional motion controlling organization comprises to be madeThe cross bar (22) that standard sound wave generator (25) moves up and down, cross bar (22) two ends, left and right are divided and are embedded in square framework (20) left sideIn the chute III (52) on right two limits, cross bar (22) middle part is provided with through hole, by bearing holder (housing, cover) IV (47) and screw mandrel I (21)Be connected, screw mandrel I (21) lower end is connected with the following of square framework (20) by bearing holder (housing, cover) III (37), and through sideBeing connected with gear width F (38) below of type frame (20), screw mandrel I (21) upper end is by bearing holder (housing, cover) V (48) and squareThe top of framework (20) is connected, and square framework (20) is also provided with stepper motor D8 below, by gear spoke F (38) withScrew mandrel I (21) be connected, cross bar (22) lateral center is provided with chute IV (53), chute IV53) in be provided with screw mandrel II(23), screw mandrel II (23) left and right end is respectively by bearing holder (housing, cover) I (33), bearing holder (housing, cover) VI (49) and cross bar (22) twoSide is connected, and cross bar (22) left end is provided with stepper motor D7, is connected with screw mandrel II (23) by gear width D (34), anotherOut screw rod II (23) is also connected with the dolly that control sound wave generator does plane motion by bearing holder (housing, cover) VII (50).
4. a kind of complexity is stablized sound field acoustic pressure testing arrangement as claimed in claim 3, it is characterized in that described control sound wave producesThe dolly that raw device does plane motion comprises longitudinal rod (24), and longitudinal rod (24) one end is provided with bearing holder (housing, cover) VII (50) and screw mandrelII (23) is connected, and longitudinal rod (24) longitudinally central authorities is provided with chute V (54), is provided with screw mandrel III (32) in chute V (54),Screw mandrel III (32) two ends are connected with longitudinal rod (24) two ends by bearing holder (housing, cover) IX55, bearing holder (housing, cover) II (35), screw mandrel III (32)Also be connected with standard sound wave generator (25) by bearing holder (housing, cover), longitudinal rod (24) front end is also provided with stepper motor D9, passes throughGear width E (36) is connected with screw mandrel III (32).
5. a kind of complexity is stablized sound field acoustic pressure testing arrangement as claimed in claim 1, it is characterized in that described whole device motionLower one of them driving wheel (1) of base (2) of driving mechanism I near be provided with the stepper motor D1 that drives its motion, stepEnter motor D 1 and be connected with this driving wheel (1) by gear pair A (27), another driving wheel (1) under end seat (2)One side is provided with the stepper motor D2 that drives its motion, and stepper motor D2 is connected with this driving wheel 1 by gear pair B (28), the endSeat (2) one sides are also provided with the electromagnetic detection mechanism (57) that controls its direction of motion, and base (2) is provided with a stepping electricityMachine D3, is connected with protractor sensor I (3) by gear, and protractor sensor I (3) is provided with range finding laser pick-offDevice I (4).
6. a kind of complexity is stablized sound field acoustic pressure testing arrangement as claimed in claim 1, it is characterized in that described sound source reference bitPut measurement column VI and comprise stretching bar (43), support bar (42), sound source reference position measurement column pedestal (45), support bar(42) one end is connected with sound source reference position measurement column pedestal (45), and the other end is connected with stretching bar (43), stretching bar(43) be provided with through hole 56, for stationary sound source reference position acoustic probes (44), in through hole (56), be also provided with oneWhether be positioned at the position sensor K2 of sound source reference position measurement column VI for detection of sound source reference position acoustic probes (44),On support bar (42), be also provided with fastening bolt (39), for fixing stretching bar (43), base for post is measured in sound source reference positionSeat (45) is provided with stepper motor D10, and stepper motor D10 is connected with protractor sensor II (40) by gear, angulationOn sensor II (40), establish the generating laser I (41) of range finding.
7. a kind of complexity is stablized sound field acoustic pressure testing arrangement as claimed in claim 3, and the standard sound wave described in it is characterized in that is sent outRaw device (25) comprises matrix (61), piezoelectric patches (60), acoustic tube (58), the fixing elastic rubber ring (59) of acoustic probes,Piezoelectric patches (60) is connected with extrinsic motivated signal, and acoustic tube (58) is positioned at matrix (61), and paste acoustic tube (58) upper endNearly piezoelectric patches (60), lower end is connected with the fixing elastic rubber ring (59) of acoustic probes.
8. a kind ofly complicated as claimed in claim 1 stablizes sound field acoustic pressure testing arrangement, it is characterized in that point sound source standard sound wave sends outRaw device (62) comprises a special loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610102582.3A CN105588637B (en) | 2016-01-31 | 2016-02-22 | A kind of complicated stable sound field acoustic pressure test device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074474 | 2016-01-31 | ||
| CN201610074474X | 2016-01-31 | ||
| CN201610102582.3A CN105588637B (en) | 2016-01-31 | 2016-02-22 | A kind of complicated stable sound field acoustic pressure test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105588637A true CN105588637A (en) | 2016-05-18 |
| CN105588637B CN105588637B (en) | 2018-07-20 |
Family
ID=55928391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610102582.3A Expired - Fee Related CN105588637B (en) | 2016-01-31 | 2016-02-22 | A kind of complicated stable sound field acoustic pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105588637B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323544A (en) * | 2016-08-26 | 2017-01-11 | 上海交通大学 | Thin film sensor array calibration device and calibration method based on sound pressure loading |
| CN106840374A (en) * | 2017-01-06 | 2017-06-13 | 上海交通大学 | Array scanning noise-measuring system |
| CN109253795A (en) * | 2018-10-31 | 2019-01-22 | 中广核检测技术有限公司 | Sound field and acoustic velocity measurement device |
| CN109443519A (en) * | 2018-11-15 | 2019-03-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Orient noise measuring analytical equipment and its operating method |
| CN109782230A (en) * | 2019-01-21 | 2019-05-21 | 柳州市展虹科技有限公司 | A kind of small-sized acoustical holography measurement of free found field and inverting device |
| CN110062322A (en) * | 2019-05-09 | 2019-07-26 | 常熟市工程质量检测中心 | A method of architectural acoustics test is carried out with rotatable microphone holder system |
| CN110243460A (en) * | 2019-05-16 | 2019-09-17 | 西安交通大学 | A kind of measuring device and method of ultrasonic sound field |
| CN112414541A (en) * | 2020-11-09 | 2021-02-26 | 东风汽车集团有限公司 | Automatic vehicle exterior noise testing device and noise testing method |
| CN113238207A (en) * | 2021-05-07 | 2021-08-10 | 武昌理工学院 | Angle adjusting method of sonar receiving plate |
| CN114152270A (en) * | 2021-12-07 | 2022-03-08 | 重庆集诚昌远科技有限公司 | Laser gyroscope light path correction mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741128A (en) * | 2005-09-13 | 2006-03-01 | 南京大学 | Virtual sound screen |
| CN1851803A (en) * | 2006-05-22 | 2006-10-25 | 南京大学 | Sound intensity active acoustic shielding |
| CN101403634A (en) * | 2008-10-20 | 2009-04-08 | 合肥工业大学 | Method for sound field separation by pressure velocity method |
| CN102494755A (en) * | 2011-12-06 | 2012-06-13 | 合肥工业大学 | Unsteady sound field separation method |
| CN103438988A (en) * | 2013-09-02 | 2013-12-11 | 浙江省计量科学研究院 | Method for automatically measuring and testing sound field of complete anechoic chamber and standard device |
| CN205670046U (en) * | 2016-01-31 | 2016-11-02 | 广西科技大学 | A kind of complexity stablizes sound field sound compression testing device |
-
2016
- 2016-02-22 CN CN201610102582.3A patent/CN105588637B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741128A (en) * | 2005-09-13 | 2006-03-01 | 南京大学 | Virtual sound screen |
| CN1851803A (en) * | 2006-05-22 | 2006-10-25 | 南京大学 | Sound intensity active acoustic shielding |
| CN101403634A (en) * | 2008-10-20 | 2009-04-08 | 合肥工业大学 | Method for sound field separation by pressure velocity method |
| CN102494755A (en) * | 2011-12-06 | 2012-06-13 | 合肥工业大学 | Unsteady sound field separation method |
| CN103438988A (en) * | 2013-09-02 | 2013-12-11 | 浙江省计量科学研究院 | Method for automatically measuring and testing sound field of complete anechoic chamber and standard device |
| CN205670046U (en) * | 2016-01-31 | 2016-11-02 | 广西科技大学 | A kind of complexity stablizes sound field sound compression testing device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323544B (en) * | 2016-08-26 | 2019-10-11 | 上海交通大学 | A kind of thin film sensor array calibrating apparatus and scaling method based on acoustic pressure load |
| CN106323544A (en) * | 2016-08-26 | 2017-01-11 | 上海交通大学 | Thin film sensor array calibration device and calibration method based on sound pressure loading |
| CN106840374A (en) * | 2017-01-06 | 2017-06-13 | 上海交通大学 | Array scanning noise-measuring system |
| CN109253795A (en) * | 2018-10-31 | 2019-01-22 | 中广核检测技术有限公司 | Sound field and acoustic velocity measurement device |
| CN109253795B (en) * | 2018-10-31 | 2020-08-18 | 中广核检测技术有限公司 | Sound field and sound velocity measuring device |
| CN109443519B (en) * | 2018-11-15 | 2020-11-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Directional noise detection and analysis device and operation method thereof |
| CN109443519A (en) * | 2018-11-15 | 2019-03-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Orient noise measuring analytical equipment and its operating method |
| CN109782230A (en) * | 2019-01-21 | 2019-05-21 | 柳州市展虹科技有限公司 | A kind of small-sized acoustical holography measurement of free found field and inverting device |
| CN109782230B (en) * | 2019-01-21 | 2023-03-31 | 柳州市展虹科技有限公司 | Free sound field small-sized acoustic holographic measurement and inversion device |
| CN110062322A (en) * | 2019-05-09 | 2019-07-26 | 常熟市工程质量检测中心 | A method of architectural acoustics test is carried out with rotatable microphone holder system |
| CN110243460A (en) * | 2019-05-16 | 2019-09-17 | 西安交通大学 | A kind of measuring device and method of ultrasonic sound field |
| CN112414541A (en) * | 2020-11-09 | 2021-02-26 | 东风汽车集团有限公司 | Automatic vehicle exterior noise testing device and noise testing method |
| CN113238207A (en) * | 2021-05-07 | 2021-08-10 | 武昌理工学院 | Angle adjusting method of sonar receiving plate |
| CN114152270A (en) * | 2021-12-07 | 2022-03-08 | 重庆集诚昌远科技有限公司 | Laser gyroscope light path correction mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105588637B (en) | 2018-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105588637A (en) | Complicated stable sound field sound pressure testing device | |
| CN105675125B (en) | A kind of complicated stable sound field acoustic pressure test device intelligence control system | |
| CN103447792B (en) | Large complicated shape is faced the wall and meditated plate Flexible Measurement & Control fixture system and investigating method | |
| CN107543672B (en) | Multiple degrees of freedom micro-vibration environmental simulation method | |
| CN110248303B (en) | Calibration method for microphone array precise calibration device | |
| CN111025302B (en) | Intelligent shipborne underwater sound positioning device, system and positioning method | |
| CN102360231B (en) | Rate gyroscope-based flexible antenna servo control system | |
| CN108008348A (en) | Underwater Wave arrival direction estimating method and device based on adjustable angle even linear array | |
| CN201007868Y (en) | Doppler effect and sound velocity integrated experimental instrument | |
| CN108983149A (en) | A kind of pivoting microphone sound localization method | |
| CN205670046U (en) | A kind of complexity stablizes sound field sound compression testing device | |
| CN103743469A (en) | Piezoelectric underwater sound transducer acoustic radiation mode measurement method and system | |
| CN205670047U (en) | A kind of complexity stablizes sound field sound compression testing device intelligence control system | |
| US20070223711A1 (en) | System and method for visualizing sound source energy distribution | |
| CN106842173A (en) | Dispersion extracting method, apparatus and system | |
| CN102411030A (en) | Ultrasonic nondestructive detection device of elastic constant of small-size test piece made of non-conventional material | |
| CN101425098B (en) | Analogue method and apparatus outputted by infrared detector | |
| CN109682584B (en) | Robot rigidity performance testing method and device | |
| CN100507553C (en) | Universal positioning apparatus for ultrasonic data acquisition method in laboratory and acquisition method thereof | |
| CN205228756U (en) | Electric tool's test pressure simulation mechanism | |
| CN109782230B (en) | Free sound field small-sized acoustic holographic measurement and inversion device | |
| CN112198476B (en) | Three-dimensional positioning method of mobile sound source based on stereoscopic vision and beam forming | |
| CN111915918A (en) | System and method for calibrating automobile whistling snapshot device on site based on dynamic characteristics | |
| CN209928010U (en) | Intelligent control system of small-sized acoustic holographic measurement and inversion device of free sound field | |
| CN102871685B (en) | Method, device and system for correcting geometric parameters of ultrasonic probe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180611 Address after: 545616 No. 4, No. C standard workshop, No. 7 Che yuan six road, Liuzhou, the Guangxi Zhuang Autonomous Region, 308 Applicant after: LIUZHOU ZHANHONG TECHNOLOGY CO.,LTD. Applicant after: GUANGXI University OF SCIENCE AND TECHNOLOGY Address before: 545006 268 East Ring Road, Central District, Liuzhou, the Guangxi Zhuang Autonomous Region Applicant before: Guangxi University of Science and Technology |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |