CN205670046U - A kind of complexity stablizes sound field sound compression testing device - Google Patents

Abstract

This utility model one complexity stablizes sound field sound compression testing device, relate to a kind of acoustical testing device, drive mechanism I including the motion of whole device, the lifting of acoustic probes array and rotary drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustic probes array IV, acoustic probes array test channel correcting drive mechanism V, sound source reference position measurement column VI, point sound source standing acoustic waves generator VII, it is a kind of small-sized, light-weighted sound compression testing device, these device installation and debugging are the most fairly simple, substantial amounts of manpower and material resources can be reduced during measurement, the labor intensity of people can be alleviated, the precision of measurement data can be improved, the large complicated field operation stablizing sound field can be suitable for especially simultaneously.

Description

A kind of complexity stablizes sound field sound compression testing device

Technical field

This utility model relates to a kind of acoustical testing device, a kind of for complexity stablize that sound field acoustic pressure tests new Device.

Background technology

Nearfield acoustic holography is the forward position of acoustic investigation in recent years, by Nearfield acoustic holography (NAH), and can be more smart Really carry out identification of sound source and location, use this technology can realize near field sound field rebuilding and visualization, therefore, NAH technology Research suppression sound pollution tool is had very great significance, NAH technology it is crucial that the sound that how to record on holographic facet Pressure distribution, and existing test device is the heaviest, adjustment and installation bothers the most very much, and workload is very big, needs substantial amounts of Manpower and material resources, and test result typically can not complete at scene, needs to return to laboratory and processes, it is therefore necessary to invention A kind of small-sized, light-weighted novel acoustic pressure test new equipment, this device (is not this utility model in corresponding intelligence control system Emphasis, be not explained in detail here, see the intelligence control system of this device applied on the same day with this utility model) control under, Can automatically debug, from dynamic(al) correction, automatically test, automatic result of calculation, to reduce substantial amounts of manpower and material resources, alleviate the labor of people Fatigue resistance, can be suitable for the large complicated field operation stablizing sound field simultaneously especially.

Summary of the invention

The purpose of this utility model is to provide a kind of new sound compression testing device small-sized, light-weighted, this device install with Debug the most fairly simple, substantial amounts of manpower and material resources can be reduced during measurement, the labor intensity of people can be alleviated, survey can be improved The precision of amount data, can be suitable for field operation simultaneously especially.

For reaching above-mentioned purpose, the technical solution adopted in the utility model is: this device includes that what whole device moved drives The lifting of motivation structure I, acoustic probes array and rotary drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustic probes Array IV, acoustic probes array test channel correcting drive mechanism V, sound source reference position measurement column VI, point sound source standing acoustic waves Generator VII.Drive mechanism I of described whole device motion includes that base, base have driving wheel and universal wheel, at base It is provided with electric appliance control box, is lifted and rotary drive mechanism II with acoustic probes array by bearing holder (housing, cover) VIII at base centre Chute I be connected, described acoustic probes array lifting and rotary drive mechanism II include chute I, the tooth bar I being contained in chute I, It is provided with motor D5, motor D5 at chute I near lower end to be connected with tooth bar I by gear I, chute I is additionally provided with Range laser emitter II, the bottom of chute I is connected with motor D4 by gear pair C, and tooth bar I upper end is near latter end Place is provided with range laser receptor II, and the end of tooth bar I is provided with screw hole I, by bolt and acoustic probes array telescopic drive machine The chute II of structure III is connected；Described acoustic probes array telescoping drive mechanism III, including chute II, is contained in the tooth in chute II Bar II, the left end at chute II is provided with screw, is lifted and the tooth bar I of rotary drive mechanism II with acoustic probes array by bolt Even, chute II left end is provided with motor D6, is connected with tooth bar II by gear II, and the right-hand member of tooth bar II is provided with screw hole II, logical Crossing bolt fixed arm main with acoustic probes array to be connected, chute II left end is additionally provided with range laser emitter III, tooth bar II right-hand member It is provided with range laser receptor III.

The further technical scheme of this utility model: described acoustic probes array IV includes the main fixed arm of acoustic probes array, The lower end of the main fixed arm of acoustic probes array is provided with screw, by the tooth of bolt Yu acoustic probes array telescoping drive mechanism III Bar II is connected, and the main fixed arm of acoustic probes array is provided with screw, divides fixed arm phase by bolt with a plurality of acoustic probes array Even, acoustic probes array divides one end of fixed arm to be provided with screw, is connected by bolt fixed arm main with acoustic probes array, acoustics Linear transducer array divides fixed arm to be provided with the through hole of fixing acoustic probes, and spiral shell is passed through in position, acoustic probes array main fixed arm middle and lower part Hole supports support with bolt with acoustic probes array test channel correcting drive mechanism and is connected, and this support support, at channel correcting Time connect, when acoustic pressure is surveyed, not chord support support, position, acoustic probes array main fixed arm middle and lower part is additionally provided with for detecting Whether the main fixed arm of acoustic probes array supports, with acoustic probes array test channel correcting drive mechanism, the position that support is connected Sensor K1, the middle part of the main fixed arm of acoustic probes array is provided with a through hole, joins for TCH test channel timing stationary sound source Examine position acoustic probes, be provided with one in through hole for detecting whether sound source reference position acoustic probes is positioned at acoustic probes simultaneously Position sensor K3 in the through hole of the main fixed arm of array.

This utility model further technical scheme: described acoustic probes array test channel correcting drive mechanism V includes Square framework and standing acoustic waves generator three-dimensional motion controlling organization, be provided with chute III, institute inside two limits about square framework State the cross bar that standing acoustic waves generator three-dimensional motion controlling organization includes making standing acoustic waves generator move up and down, about cross bar In the chute III being embedded in two limits about square framework is divided at two ends, it is provided with through hole in the middle part of cross bar, by bearing holder (housing, cover) IV and screw mandrel I is connected, and screw mandrel I lower end is connected with the following of square framework by bearing holder (housing, cover) III, and through the following of square framework and gear Secondary F is connected, and screw mandrel I upper end is connected with the top of square framework by bearing holder (housing, cover) V, and square framework is additionally provided with motor below D8, is connected with screw mandrel I by gear pair F, and cross bar lateral center is provided with chute IV, is provided with screw mandrel II, screw mandrel II left in chute IV Right-hand member is connected with cross bar two side ends by bearing holder (housing, cover) I, bearing holder (housing, cover) VI respectively, and cross bar left end is provided with motor D7, passes through gear Secondary D is connected with screw mandrel II, and additionally screw mandrel II does the dolly phase of plane motion also by bearing holder (housing, cover) VII and control sound wave generator Even.

This utility model further technical scheme: described control sound wave generator is made the dolly of plane motion and included indulging To bar, longitudinal rod one end is provided with bearing holder (housing, cover) VII and is connected with screw mandrel II, the longitudinally central chute V that is provided with of longitudinal rod, is provided with in chute V Screw mandrel III, 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 is also by bearing holder (housing, cover) (being not drawn in figure) is connected with standing acoustic waves generator, and longitudinal rod front end is additionally provided with motor D9, by gear pair E and silk Bar III is connected.

This utility model further technical scheme: under the base of drive mechanism I of described whole device motion wherein one It is provided with the motor D1, motor D1 that drive its motion near individual driving wheel to be connected with this driving wheel by gear pair A, the end The side of another driving wheel under Zuo is provided with the motor D2, motor D2 that drive its motion and by gear pair B and is somebody's turn to do Driving wheel is connected, and base side is additionally provided with the electromagnetic detection mechanism controlling its direction of motion, and base is provided with a motor D3, is connected with protractor sensor I by gear, and protractor sensor I is provided with range laser receptor I.

This utility model further technical scheme: described sound source reference position measurement column VI includes stretch, support Bar, sound source reference position measurement column pedestal, support bar one end is connected with sound source reference position measurement column pedestal, the other end and stretching Bar is connected, and stretch is provided with through hole, for stationary sound source reference position acoustic probes, is additionally provided with one for detecting in through hole Whether sound source reference position acoustic probes is positioned at the position sensor K2 of sound source reference position measurement column VI, and support bar is additionally provided with Fastening bolt, is used for fixing stretch, and it is logical that sound source reference position measurement column pedestal is provided with motor D10, motor D10 Cross gear to be connected with protractor sensor II, protractor sensor II sets the generating laser I of range finding.

This utility model further technical scheme: described standing acoustic waves generator includes matrix, piezoelectric patches, sound absorption Cylinder, acoustic probes fix elastic rubber ring, and piezoelectric patches is connected with extrinsic motivated signal, and acoustic tube is positioned at matrix, in acoustic tube End press close to piezoelectric patches, lower end fix with acoustic probes elastic rubber ring be connected point sound source standing acoustic waves generator include one special Speaker.

Owing to using said structure, this utility model one complexity is stablized sound field acoustic pressure test new equipment and is had following useful Effect:

(1) device is simple, light and handy, and debugging is convenient.

This utility model one complexity stablizes sound field sound compression testing device, and structure is very simple, the lightest and the handiest, overcomes Shortcoming heavy in device, after only need to simply installing, after all of location be all under control of the control system (not no with test It is emphasis of the present utility model, is not described in detail at this) automatically carry out, it is not necessary to manual intervention, manpower can be greatly saved Material resources, alleviate the labor intensity of people, particularly stablize in sound field in complexity large-scale, multi-point sampler and become apparent from.

(2) test data can be made more accurate, reliably.

This utility model one complexity stablizes sound field sound compression testing device, owing to major part work is not required to manual intervention, subtracts Lacked personal error, so that test data relatively reliable, accurately.

With embodiment, this utility model kind one complexity is stablized sound field sound compression testing device below in conjunction with the accompanying drawings further Explanation.

Accompanying drawing explanation

Fig. 1 is that this utility model one complexity stablizes sound field acoustic pressure test apparatus main body structural representation；

Fig. 2 is that this utility model one complexity is stablized sound field sound compression testing device and removed acoustic probes array test passage Correction driving mechanism structure main apparent direction schematic diagram；

Fig. 3 is that this utility model one complexity is stablized sound field sound compression testing device and removed acoustic probes array test passage school Positive driving mechanism structure left view direction schematic diagram；

Fig. 4 is that this utility model one complexity is stablized sound field sound compression testing device acoustic probes array test channel correcting and driven Motivation structure structural representation；

Fig. 5 is that this utility model one complexity is stablized sound field sound compression testing device acoustic probes array test channel correcting and driven In motivation structure, motor D7 and screw mandrel II 23 is connected side-looking direction schematic diagram；

Fig. 6 is that this utility model one complexity is stablized sound field sound compression testing device acoustic probes array test channel correcting and driven In motivation structure, motor D8 and screw mandrel I 21 is connected vertical view direction schematic diagram；

Fig. 7 is that this utility model one complexity is stablized sound field sound compression testing device acoustic probes array test channel correcting and driven In motivation structure, motor D9 and screw mandrel III32 is connected main apparent direction schematic diagram；

Fig. 8 is that this utility model one complexity stablizes sound field sound compression testing device sound source reference position measurement column structural representation Figure；

Fig. 9 is that this utility model one complexity stablizes sound field sound compression testing device standing acoustic waves generator schematic diagram；

Figure 10 is that this utility model one complexity stablizes the sound field acoustic pressure raw device schematic diagram of test mounted point sound source standing acoustic waves；

Figure 11 is that this utility model one complexity stablizes sound field sound compression testing device standing acoustic waves generator array schematic diagram；

Figure 12 is that this utility model one complexity is stablized sound field sound compression testing device another kind acoustic probes array structure and shown It is intended to；

Figure 13 be this utility model one complexity stablize the sound field whole device of sound compression testing device from initial point arrive to be measured entirely Schematic diagram at breath face.

Main element label declaration: 1-driving wheel, 2-base, 3-protractor sensor I, 4-range laser receptor I, 5- Electric appliance control box, 6-range laser emitter II, 7-chute I, 8-tooth bar I, 9-range laser receptor II, 10-screw hole I, 11- Range laser emitter III, 12-chute II, 13-tooth bar II, 14-range laser receptor III, 15-screw hole II, 16-acoustics The main fixed arm of linear transducer array, 17-acoustic probes array divide fixed arm, 18-acoustic probes, 19-acoustic probes array test to lead to school Positive drive mechanism supports support, 20-square framework, 21-screw mandrel I, 22-cross bar, 23-screw mandrel II, 24-longitudinal rod, 25-standard sound Baud generator, 26-gear I, 27-gear pair A, 28-gear pair B, 29-gear II, 30-universal wheel, 31-gear pair C, 32-silk Bar III, 33-bearing holder (housing, cover) I, 34-gear pair D, 35-bearing holder (housing, cover) II, 36-gear pair E, 37-bearing holder (housing, cover) III, 38-gear pair F, 39-fixes bolt, 40-protractor sensor II, 41-range laser emitter I, 42-support bar, 43-stretch, 44-sound source Reference position 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 Set IX, 56 through holes, 57-electromagnetic detection mechanism, 58-acoustic tube, 59-probe fixing elastic rubber ring, 60-piezoelectric patches, 61-base Body, 62-point sound source standing acoustic waves generator.

Detailed description of the invention

As shown in Figures 1 to 10, this utility model one complexity stablizes sound field sound compression testing device, and this device includes whole Drive mechanism I of device motion, the lifting of acoustic probes array and rotary drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustic probes array IV, acoustic probes array test channel correcting drive mechanism V, sound source reference position measurement column VI, point Sound source standing acoustic waves generator VII.Drive mechanism I of described whole device motion includes that base 2, base 2 have driving wheel 1 With universal wheel 30, being provided with electric appliance control box 5 on base 2, electric appliance control box 5 is used for placing control circuit plate, base 2 centre Place is connected by the chute I 7 of bearing holder (housing, cover) VIII51 with the lifting of acoustic probes array and rotary drive mechanism II, and described acoustics is visited Head array lifting and rotary drive mechanism II include chute I 7, and the tooth bar I 8 being contained in chute I 7, tooth bar I 8 are along chute I 7 Can move up and down in chute I 7, be provided with motor D5, motor D5 at chute I 7 near lower end and pass through tooth Wheel I 26 is connected with tooth bar I 8, when motor D5 does rotating campaign, passes to tooth bar I 8 by 26 power of gear I, drives tooth Bar I 8 moves up and down, such that it is able to drive acoustic probes array IV to rise or fall, chute I 7 is additionally provided with range laser Emitter II 6, the bottom of chute I 7 is connected with motor D4 by gear pair C31, in gear pair C31 a gear and Chute I 7 is connected, and another gear is connected with motor D4, when motor D4 does rotating campaign, by gear pair C31 Power is passed to chute I 7, makes chute I 7 energy left rotation and right rotation, thus drive acoustic probes array IV to rotate, acoustics can be adjusted The orientation of linear transducer array IV, tooth bar I 8 upper end is provided with range laser receptor II 9, range laser emitter II near end section 6 with the coordinating of range laser receptor II 9, be primarily used to measure the distance that tooth bar I 8 rises or falls, i.e. measure acoustics The distance that linear transducer array IV rises or falls, the end of tooth bar I 8 is provided with screw hole I 10, is stretched with acoustic probes array by bolt The chute II 12 of contracting drive mechanism III is connected；Described acoustic probes array telescoping drive mechanism III, including chute II 12, dress Tooth bar II 13 in chute II 12, tooth bar II 13 can do in chute II 12 and protract or rear shrink movement, at chute II The left end of 12 is provided with screw, is connected by the tooth bar I 8 of bolt with the lifting of acoustic probes array and rotary drive mechanism II, chute II 12 left end is provided with motor D6, is connected with tooth bar II 13 by gear II 29, and motor D6 does rotating campaign Time, pass to tooth bar II 13 by 29 power of gear II, drive tooth bar II 13 to protract or retraction, thus drive acoustic probes The extension of array IV or retraction, the right-hand member of tooth bar II 13 is provided with screw hole II 15, is fixed with acoustic probes array master by bolt Arm 16 is connected, and chute II 12 left end is additionally provided with range laser emitter III11, and tooth bar II 13 right-hand member is provided with range laser and receives Device III14, range laser emitter III11 and range laser receptor III14 coordinates, and is mainly used to measure tooth bar II 13 Extension or the distance of retraction, i.e. measure extension or the distance of retraction of acoustic probes array IV.

Described acoustic probes array IV includes the main fixed arm of acoustic probes array 16, the main fixed arm of acoustic probes array 16 Lower end is provided with screw, is connected by the tooth bar II 13 of bolt with acoustic probes array telescoping drive mechanism III, acoustic probes battle array Arrange main fixed arm 16 and be provided with screw, divide fixed arm 17 to be connected by bolt with a plurality of acoustic probes array, acoustic probes array The one end dividing fixed arm 17 is provided with screw, is connected by bolt fixed arm main with acoustic probes array 16, and acoustic probes array divides Fixed arm 17 is provided with the through hole of fixing acoustic probes 18, position, acoustic probes array main fixed arm 16 middle and lower part by screw with Bolt supports support 19 with acoustic probes array test channel correcting drive mechanism and is connected, and this support support, when channel correcting Connecting, when acoustic pressure is surveyed, not chord support support, position, acoustic probes array main fixed arm 16 middle and lower part is additionally provided with for detecting Whether the main fixed arm of acoustic probes array 16 supports what support 19 was connected with acoustic probes array test channel correcting drive mechanism Position sensor K1, the middle part of the main fixed arm of acoustic probes array 16 is provided with a through hole 46, solid for TCH test channel timing Determine sound source reference position acoustic probes 44, be provided with one in through hole for whether detecting sound source reference position acoustic probes 44 simultaneously Being positioned at the position sensor K3 of through hole 46, acoustic probes 18 is mainly for detection of acoustic signal, in its output connected control system Amplifying unit (mainly describing test device here, control system is not described in detail here) in acoustical testing channel unit.

Described acoustic probes array test channel correcting drive mechanism V includes square framework 20 and standing acoustic waves generator three Dimension motion control mechanism, is provided with chute III52, described standing acoustic waves generator three maintenance and operation inside about 20 two limits of square framework Dynamic controlling organization includes the cross bar 22 making standing acoustic waves generator 25 move up and down, and cross bar about 22 two ends are divided and are embedded in square In the chute III52 on about 20 two limits of framework, in the middle part of cross bar 22, it is provided with through hole, by bearing holder (housing, cover) IV47 and screw mandrel I 21 phase Even, screw mandrel I 21 lower end is connected with the following of square framework 20 by bearing holder (housing, cover) III37, and passes the following of square framework 20 Being connected with gear pair F38, screw mandrel I 21 upper end is connected with the top of square framework 20 by bearing holder (housing, cover) V48, square framework 20 times While be additionally provided with motor D8, it is connected with screw mandrel I 21 by gear pair F38, a gear and motor in gear pair F38 D8 is connected, and a gear is connected with screw mandrel I 21, when motor D8 does rotating campaign, and can be by gear pair F38 power Passing to screw mandrel I 21, drive screw mandrel I 21 to move, thus drive cross bar 22 to move up and down, cross bar 22 lateral center is provided with chute IV53, is provided with screw mandrel II 23, screw mandrel II about 23 and holds respectively by bearing holder (housing, cover) I 33, bearing holder (housing, cover) VI49 and horizontal stroke in chute IV53 Bar 22 two side ends is connected, and cross bar 22 left end is provided with motor D7, is connected with screw mandrel II 23 by gear pair D34, additionally screw mandrel The dolly that II 23 does plane motion also by bearing holder (housing, cover) VII50 with control sound wave generator is connected, in gear pair D34 Gear is connected with motor D7, and another gear is connected with II 23, when motor D7 does rotating campaign, passes through gear Secondary D34 passes to screw mandrel II 23 power, drives screw mandrel II 23 to move, thus drives control sound wave generator to do plane motion Dolly does transverse movement.

Described control sound wave generator is made the dolly of plane motion and is included that longitudinal rod 24, longitudinal rod 24 one end are provided with bearing Set VII50 is connected with screw mandrel II23, and the longitudinal rod 24 longitudinally central chute V54 that is provided with is provided with screw mandrel III32, screw mandrel in chute V54 III32 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 is also by bearing holder (housing, cover) (figure In be not drawn into) be connected with standing acoustic waves generator 25, longitudinal rod 24 front end is additionally provided with motor D9, by gear pair E36 with Screw mandrel III32 is connected, and in gear pair E36, a gear is connected with motor D9, another gear and screw mandrel III32, stepping When motor D9 does positive counter-movement, by gear pair E36, power is passed to screw mandrel III32, drive screw mandrel III32, thus drive mark Quasi-sound wave generator 25 does lengthwise movement.

Its motion of driving it is provided with near 2 times one of them driving wheels 1 of base of drive mechanism I of described whole device motion Motor D1, motor D1 be connected with this driving wheel 1 by gear pair A27, a gear and stepping in gear pair A27 Motor D1 is connected, and another gear is connected with driving wheel 1, by gear pair A27, motor D1, power is passed to driving wheel 1, Making it move, the side of another driving wheel 1 under base 2 is provided with and drives the motor D2, motor D2 of its motion logical Crossing gear pair B28 to be connected with this driving wheel 1, in gear pair B28, a gear is connected with motor D2, and another gear is with another One driving wheel 1 is connected, and by gear pair B28, motor D2, power is passed to driving wheel 1 so that it is motion, base 2 side Being additionally provided with the electromagnetic detection mechanism 57 controlling its direction of motion, base 2 is provided with a motor D3, by gear and angulation Device sensor I 3 is connected, and protractor sensor I 3 is provided with range laser receptor I 4, and the rotary motion of motor D2 can Move with protractor sensor I 3, thus drive range laser receptor I 4 to move.

Described sound source reference position measurement column VI includes that base for post is measured in stretch 43, support bar 42, sound source reference position Seat 45, support bar 42 one end is connected with sound source reference position measurement column pedestal 45, and the other end is connected with stretch 43, support bar 42 Being a hollow circular cylinder, position boom 43 one end is inserted in support bar 42, can be with up-down stretch, and stretch 43 is provided with through hole 56, for stationary sound source reference position acoustic probes 44, through hole 56 is additionally provided with one for detecting sound source reference position acoustics Whether probe 44 is positioned at the position sensor K2 of sound source reference position measurement column VI, and support bar 42 is additionally provided with fastening bolt 39, For fixing stretch 42, sound source reference position measurement column pedestal 45 is provided with motor D10, motor D10 and passes through tooth Wheel is connected with protractor sensor II40, and protractor sensor II40 sets the generating laser I 41 of range finding, motor DI0 Motion can drive protractor sensor II 40, such that it is able to drive range finding generating laser I 41 move, Laser emission Device I 41 and range laser receptor I 4, can measure sound source reference position and test in device pedestal 2 at acoustic holography to be measured Distance at the heart, protractor sensor I 3 and protractor sensor II 40, can be with interception；Described standing acoustic waves generator 25 include that matrix 61, piezoelectric patches 60, acoustic tube 58, acoustic probes fix elastic rubber ring 59, wherein piezoelectric patches 60, swash additional Encouraging signal function, produce sound wave, acoustic tube 58 is positioned at matrix 61, and piezoelectric patches 60, lower end and acoustics are pressed close in acoustic tube 58 upper end The fixing elastic rubber ring of probe 59 is connected, and acoustic tube 58 is to be made by sound-absorbing material, is possible to prevent the reflection of sound wave, acoustical testing Time i.e. channel correcting test time, be enclosed within acoustic probes, acoustic probes fixes elastic rubber ring 59, is doing acoustical testing, fixing Acoustic probes, and seal, point sound source standing acoustic waves generator 62 includes a special speaker, at extrinsic motivated Sound source is produced under signal function.

Standing acoustic waves generator array can also be used, such as figure as the standing acoustic waves generator described in a kind of variation 11, so at TCH test channel timing, correction time is shorter, but necessarily requires the property of each standing acoustic waves generator in array Can be the same, additionally Figure 12's be another acoustic probes array structure schematic diagram of this utility model, this acoustic probes battle array A point fixed arm for row is spherical arc shape, is particularly suitable for the measurement of spherical wave, is therefore not limited in examples detailed above cited shape Formula, as long as the conversion done in the range of this utility model broadly falls into category of the present utility model, additionally Figure 13 is this practicality Novel a kind of complexity is stablized the sound field whole device of sound compression testing device and is arrived the schematic diagram at holographic facet to be measured from initial point.

It (is not this utility model that a kind of complexity of this utility model stablizes the intelligence control system of sound field sound compression testing device Emphasis, merely just brief description) include with lower module: control centre's module, accessory module and upper machine interface module, electricity Magnetic testi module, range finder module, acoustic pressure measuring and calculation module, whole device motion drive module, acoustic probes array lifting and Rotate and drive module, acoustic probes array telescopic drive module, acoustic probes array test channel correcting drive mechanism to drive mould Block, information input display module, its control process is, system electrification, is first controlled center module and initializes, at the beginning of then sentencing Beginningization is the most successful, as unsuccessful, then judges whether time-out, if the most overtime, then continues to judge that initialization is the most successful, such as time-out Then display system mistake, if initializing successfully, then control centre's module to each sub-module send initialization command and send should Answer confirmation signal, then judge whether to receive whole answer signal, as the most all received, then judge that initialization is the most overtime, Such as time-out, then display system mistake, if the most overtime, then continue to determine whether to receive whole answer signal, as received, then enter system Unite ready, acoustic pressure test can be carried out, be given and " carrying of sound source reference position and acoustic holography face center point coordinate to be measured please be input Show ", then determine whether that host computer coordinate data inputs, if it did not, be judged as whether information display input module has seat Mark input, if any, then enter acoustic probes array co-ordinates location split flow, if it has not, then continue to judge whether host computer has seat Mark data input, if host computer has coordinate to input, then positions split flow, acoustic probes battle array also into acoustic probes array co-ordinates After row coordinate setting split flow terminates, then enter acoustic pressure measuring and calculation split flow, after acoustic pressure measuring and calculation split flow terminates, then sentence Whether disconnected test assignment terminates, and as terminated, then task terminates, and enters next measuring point as also having, then returns to judge host computer Whether there is coordinate data to input, enter test assignment next time.

It is first to be sound source reference position and sound to be measured that described acoustic probes array co-ordinates location split flow controls process Learn the coordinate input of holographic facet center, added that by the two coordinate the size of device obtains place to be measured device pedestal 2 central point The coordinate at place, then judges whether sound source reference position measurement column VI is positioned at sound source reference position, if not, be given " please Sound source reference position measurement column is placed in sound source reference position " information, simultaneously again judge sound source reference position measurement column Whether be positioned at sound source reference position, in this way, then judge from sound source reference position to the coordinate at base 2 central point place to be measured it Between electromagnetism thin wire whether set up, the information of " please money lay electromagnetism thin wire " if it has not, be then given, as set up , please judge whether whole test device is positioned at sound source reference position, if not, utilize the remote manipulation hands in accessory module Handle input signal drive stepping motor D1, D2 drives whole test device to arrive the position near acoustic holography face to be measured, as It is then to determine whether that remote-control handle signal inputs, drives if any then utilizing the remote manipulation handle input signal in accessory module Dynamic motor D1, D2 make whole test device arrive position near acoustic holography face to be measured, if it has not, system is then according to electricity Automatic drive stepping motor D1 of signal that Magnetic testi module feedback is returned, D2 makes whole test device arrive acoustic holography face to be measured Neighbouring position, then drive stepping motor D3, D10 drive protractor sensor I 3, protractor sensor II40 to rotate, angulation Find range on range laser receptor I 4, protractor sensor II 40 on device sensor I 3 away from generating laser I 41 all with Rotation, make range laser emitter I 41 signal can by range finding laser pickoff I 4 receive, measure sound source reference position with Distance at whole device center chassis, adds protractor sensor I 3, the angle of protractor sensor II 40, the side of measuring Position, adds the coordinate of sound source reference position and the size of device, calculates acoustics to be measured by space coordinate transformation formula Coordinate at holographic center, then judge acoustic holography center to be measured coordinate and setting identical, as identical, terminate, as Differ, then lead to drive stepping motor D3 and adjust the orientation of acoustic probes array, visited by drive stepping motor D4 regulation acoustics The height of head array IV, by the length of drive stepping motor D5 regulation acoustic probes array extension retraction, carries out school to coordinate Just, if also not reaching requirement, more suitably being corrected again by drive stepping motor D1, D2, making in acoustic holography face to be measured At the heart, coordinate is identical with set coordinate, while motor D4, D5 work, and range laser II emitter, range laser II receptor, range laser III emitter, range laser III receptor also begin to work, measure height, length.

Described pressure measuring and calculation step split flow is, enters this stream after acoustic probes array co-ordinates location split flow terminates Journey, the first step of this flow process is to enter TCH test channel aligning step split flow, after TCH test channel aligning step split flow terminates, Acoustic pressure measuring and calculation module high speed multiple branch circuit selects switch to point to point sound source standing acoustic waves generator 62, then judges that sound source is joined Examine whether position acoustic probes 44 returns to sound source reference position measurement column VI, if not, provide " please put back to " information, In this way, then the internal control unit of acoustic pressure measuring and calculation module sends a standard frequency control word, and this signal produces a mark Quasi-acoustic signals, this signal is(herein for being easy to illustrate signal not to be carried out power amplification, signal is put Greatly, simply having added a coefficient, algorithm is the same, and in formula, k is wave number, and r is the distance of acoustic propagation), then start f+1 drive test Pinging, wherein f road connects sound source reference position TCH test channel, and each road TCH test channel tests N number of data, then uses standard sound Ripple signalCentrifugal pump as the reference input of adaptive algorithm, standing acoustic waves signal adds ambient noise signal y The centrifugal pump of=u+noise, the i.e. signal of each TCH test channel collection output input, really as the source signal of adaptive algorithm Fixed step size and the initial value of adaptive algorithm weights, the error signal e (n) utilizing adaptive algorithm formula to draw is exactly that each is surveyed Centrifugal pump noise of the background noise noise pinged_lN (), wherein l is 0 to be 0 to N to f, n, is then shut off acoustic pressure tester Calculating DDS output channel in module, carry out acoustic pressure actual measurement, under the work of lock-out pulse, each TCH test channel gathers p group data x_FκN (), each group of N number of data, if these p group data are measurement p gained, then uu=0 under equivalent environment, if once Measure p group data in collection, then uu=1, wherein F is 1 to be 0 to N to p, n in the range of 0-f, κ, subsequently into surveying acoustic pressure Calculation procedure split flow, after actual measurement acoustic pressure calculation procedure split flow terminates, then acoustic pressure measuring and calculation split flow terminates.

Described TCH test channel aligning step split flow, the control process steps of this flow process is: input acoustic probes array Line number and columns and number f+1 of acoustic probes, and need frequency number h of correction, juxtaposition variable F=f, τ=h, so Rear judge whether sound source reference position acoustic probes 44 is positioned at the demarcation of the acoustic probes main fixed arm of array IV 16 at through hole 46, If not, providing the information of " please be placed at demarcation ", in this way, then whether criterion letter sound wave generator 25 is positioned at initially Position, if not, makes standing acoustic waves generator 25 be positioned at initially by acoustic probes array test channel correcting drive mechanism V Position, judges the most again, and in this way, then the internal control unit of acoustic pressure measuring and calculation module surveys DDS interface list in module to acoustic pressure Unit, TCH test channel unit, the correlation unit such as standing acoustic waves generation unit sends response confirmation signal, then judges whether to receive complete Portion's answer signal, if not, judge whether repeatedly to retransmit, the most repeatedly retransmits, then provide that " acoustic pressure measuring and calculation module goes out Wrong " information, detect whether the most again to receive and all confirm answer signal, in this way, then whether determination frequency number τ variable Being 0 (whether frequency number to be corrected tests), as 0, then flow process terminates, as being not equal to 0, then and acoustic pressure measuring and calculation mould The high-velocity electrons of block select switch to connect to standard wave generator 25, F=F-1 simultaneously, τ=τ-1, send by the frequency of regulation in advance The τ frequency control word, i.e. produces a standard dextrorotation signal(this is complex signal, is the most just taking its imaginary part Rotation signal, lower with), then judge whether F is-1, as-1, then return to whether detection τ is 0, if not being 0, then acoustic probes Array test channel correcting drive mechanism V makes the raw device 25 of standing acoustic waves be enclosed within the acoustic probes on F road, starts the school on F road Just, under lock-out pulse synchronizes, gather N number of data, draw this signalDiscrete data u_FN (), this Individual data and the standard signal provided with given frequency control word(the raw device of standing acoustic waves is to be directly sleeved on acoustics On probe, distance r of acoustic propagation is approximately equal to 0, the most signal is not amplified, so acoustic signals is identical with excitation, if Signal is exaggerated, and adds a correction factor, and algorithm is the same, because amplitude can be entered by channel below amplitude correction coefficient Row correction, does not accounts for the Phase delay of piezoelectric patches 60 in sound wave generator 25, because after signal stabilization, this phase place here Angle is the least, and can be according to piezoelectric formula it can be calculated that can be compensated by circuit, it is also possible to pass through algorithm Compensate, herein for being easy to explanation, first do not consider this Phase delay, additionally because of general all one of all of phase angle Relative phase angle, the i.e. phase angle of relative sound source reference position, the phase angle i.e. utilizing each TCH test channel to try to achieve deducts sound The phase angle of source ginseng position measurement passage, owing to being same piezoelectric patches, so Phase delay just removes produced by piezoelectric patches ) discrete signal L_τN two signals are carried out, from composing, i.e. drawing the delay phase place of this TCH test channel by () cross-spectrum simultaneouslyWherein F is 0 to f, T is the cycle, μ For signal delay time, a cos represents remaining rotation of negating, and f road is the sound source TCH test channel with reference to cursor position, its delay phase place ForPassage amplitude rectification is that coefficient isτ is 1 to h.

Described acoustic pressure Actual measurement step split flow is: actual measurement acoustic pressure calculation process starts, and inputs uu, noise_l(n), x_FκN (), wherein l, F is 0 to be 1 to p to f, κ, then with the background noise noise of each road TCH test channel_lN () is reference signal Input, with x_FκN () inputs as source signal, determine adaptive step-length, with the initial value of weights, utilize adaptive algorithm to obtain Error signal e (n), so that it may obtain the sound source radiation signal s that each road TCH test channel detects_FκN () (this signal is background Noise signal is peeled off, and becomes the cleanest signal), wherein F is 0 to be 1 to p to f, κ, then gathers each road TCH test channel First group of data carry out fast Fourier transform i.e. h_F1=fft (s_F1(n)), then find out corresponding to frequency domain data medium wave peak Frequency and amplitude substantially estimated value, then utilize power enhanced that frequency spectrum is corrected, be i.e. utilized respectively formula:

$\begin{array}{cc}{w}_{F\mathrm{\τ}}=\underset{k=\mathrm{\τ}-M}{\overset{\mathrm{\τ}+M}{\Σ}}k.{\left|X_k\right|}^2/\underset{k=\mathrm{\τ}-M}{\overset{\mathrm{\τ}+M}{\Σ}}{X}_k*\mathrm{\Δ}w& A_{F\mathrm{\τ}}={\mathrm{\δ}}_{F\mathrm{\τ}}\sqrt{K_t\underset{k=\mathrm{\τ}-M}{\overset{\mathrm{\τ}+M}{\Σ}}{X}_K^2}\end{array}.$

Frequency is corrected with amplitude, whereinM typically takes 1 or 2, X_kFor fast Fourier transform intermediate frequency spectrum The complex value spectrum of k location, K in figure_tFor energetic coefficient of restitution, K_tChoose typically the most relevant with choosing of window letter, during with Hanning window Typically take 8/3, δ_FτThe passage amplitude correction coefficient that split flow is tried to achieve is corrected for passage amplitude correction coefficient, i.e. TCH test channel, from And try to achieve amplitude A of sound source spoke signal frequency component sound wave on each TCH test channel_FτWith frequency w_Fτ, wherein F is 0 to arrive F, τ are 1 counting to the calculating of m, N fast Fourier, utilize the frequency tried to achieve to test each with amplitude after this EOS M frequency component of passage asks phase angle, and the frequency i.e. utilizing each passage to obtain forms m simple signal with amplitude, i.e.This signal discrete turns to g_FτN (), then this m simple signal is mutual with the p group data of this passage respectively Spectrum, utilizing signal in orthogonal is 0, and energy principle of invariance, it is possible to tries to achieve this TCH test channel acoustic signals under this frequency and is surveying The p group phase angle of point:

Wherein F is 0 to be 1 to be 1 to m to p, τ to f, κ.Then variable uu is judged, if uu=0, thenWherein F is 0 to be 1 to be 1 to m to p, τ to f, κ, if uu ≠ 0, then Wherein F be 0 to f, κ be 1 to p, τ be 1 to m, Δ t be p group data adjacent sets data set accept and believe interval, then this phase angle adds TCH test channel phase compensation angle, just obtains each frequency component measuring point true phase angle in acoustic radiation signal, i.e.Ψ_fτFor the phase angle of sound source reference position TCH test channel, wherein F is 0 to be 1 to m to f, τ, as obtained 0 To f-1 road TCH test channel relative to the phase angle of sound source reference position, sound can be deducted with the phase angle of each road TCH test channel The phase angle of source reference position, this phase angle is unrelated with the time, only with the distance dependent of sonic propagation, it may be assumed that Π_Fτ=Ψ_Fτ- Ψ_fτThe most entirely go out the phase place of each frequency component sound wave of whole TCH test channel, frequency, amplitude: Π_Fτ、w_Fτ、A_Fτ, wherein F Be 0 to be 1 to m to f-1, τ, above TCH test channel aligning step split flow all used change with acoustic pressure Actual measurement step split flow Amount τ, wherein channel correcting flow process τ is 1 to h, and in acoustic pressure Actual measurement step split flow, τ is 1 to m, but surveys in reality During amount, take h=m.

Claims (8)

1. a complexity stablizes sound field sound compression testing device, it is characterised in that this device includes the drive mechanism that whole device moves The lifting of I, acoustic probes array and rotary drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustic probes array IV, acoustic probes array test channel correcting drive mechanism V, sound source reference position measurement column VI, point sound source standing acoustic waves occur Device VII；Drive mechanism I of described whole device motion includes that base (2), base (2) have driving wheel (1) and universal wheel (30), base (2) is provided with electric appliance control box (5), by bearing holder (housing, cover) VIII (51) and acoustic probes at base (2) centre The chute I (7) of array lifting and rotary drive mechanism II is connected；The lifting of described acoustic probes array and rotary drive mechanism II bag Include chute I (7), the tooth bar I (8) being contained in chute I (7), it is provided with motor D5, stepping electricity at chute I (7) near lower end Machine D5 is connected by gear I (26) and tooth bar I (8), and chute I (7) is additionally provided with range laser emitter II (6), chute I (7) Bottom be connected with motor D4 by gear pair C (31), tooth bar I (8) upper end is provided with range laser near end section and connects Receiving device II (9), the end of tooth bar I (8) is provided with screw hole I (10), by bolt with acoustic probes array telescoping drive mechanism III's Chute II (12) is connected；Described acoustic probes array telescoping drive mechanism III, including chute II (12), is contained in chute II (12) Interior tooth bar II (13), the left end at chute II (12) is provided with screw, is driven with the lifting of acoustic probes array and rotation by bolt The tooth bar I (8) of motivation structure II is connected, and chute II (12) left end is provided with motor D6, by gear II (29) and tooth bar II (13) being connected, the right-hand member of tooth bar II (13) is provided with screw hole II (15), by bolt fixed arm main with acoustic probes array (16) phase Even, chute II (12) left end is additionally provided with range laser emitter III (11), and tooth bar II (13) right-hand member is provided with range laser receptor III(14)。

2. a kind of complexity as claimed in claim 1 stablizes sound field sound compression testing device, it is characterised in that described acoustic probes battle array Row IV includes that the main fixed arm of acoustic probes array (16), the lower end of the main fixed arm of acoustic probes array (16) are provided with screw, pass through Bolt is connected with the tooth bar II (13) of acoustic probes array telescoping drive mechanism III, on the main fixed arm of acoustic probes array (16) Being provided with screw, divide fixed arm (17) to be connected by bolt with a plurality of acoustic probes array, acoustic probes array divides fixed arm (17) One end be provided with screw, be connected by bolt fixed arm main with acoustic probes array (16), acoustic probes array divides fixed arm (17) be provided with the through hole of fixing acoustic probes (18), acoustic probes array main fixed arm (16) position, middle and lower part by screw with Bolt supports support (19) with acoustic probes array test channel correcting drive mechanism and is connected, and this support support, at channel correcting Time connect, when acoustic pressure is surveyed, not chord support support, acoustic probes array main fixed arm (16) position, middle and lower part be additionally provided with for Whether the detection main fixed arm of acoustic probes array (16) supports support with acoustic probes array test channel correcting drive mechanism (19) the position sensor K1 being connected, the middle part of the main fixed arm of acoustic probes array (16) is provided with a through hole (46), is used for surveying Stationary sound source reference position acoustic probes (44) when pinging channel correction, is provided with one for detecting sound source reference bit simultaneously in through hole Put whether acoustic probes (44) is positioned at the position sensor K3 of through hole (46).

3. a kind of complexity as claimed in claim 1 stablizes sound field sound compression testing device, it is characterised in that described acoustic probes battle array Row TCH test channel correction drive mechanism V includes square framework (20) and standing acoustic waves generator three-dimensional motion controlling organization, square Framework (20) left and right is provided with chute III (52) inside two limits, and described standing acoustic waves generator three-dimensional motion controlling organization includes Making the cross bar (22) that standing acoustic waves generator (25) moves up and down, cross bar (22) two ends, left and right are divided and are embedded in square framework (20) In the chute III (52) on two limits, left and right, cross bar (22) middle part is provided with through hole, by bearing holder (housing, cover) IV (47) and screw mandrel I (21) phase Even, screw mandrel I (21) lower end is connected with the following of square framework (20) by bearing holder (housing, cover) III (37), and through square framework (20) be connected with gear pair F (38) below, the top of bearing holder (housing, cover) V (48) and square framework (20) is passed through in screw mandrel I (21) upper end Being connected, square framework (20) is additionally provided with motor D8 below, is connected by gear pair F (38) and screw mandrel I (21), cross bar (22) Lateral center is provided with chute IV (53), is provided with screw mandrel II (23) in chute IV (53), and screw mandrel II (23) left and right end passes through axle respectively Bearing sleeve I (33), bearing holder (housing, cover) VI (49) are connected with cross bar (22) two side ends, and cross bar (22) left end is provided with motor D7, passes through tooth Wheel set D (34) is connected with screw mandrel II (23), and additionally screw mandrel II (23) does with controlling sound wave generator also by bearing holder (housing, cover) VII (50) The dolly of plane motion is connected.

4. a kind of complexity stablizes sound field sound compression testing device, it is characterised in that described control sound wave produces The dolly that raw device does plane motion includes that longitudinal rod (24), longitudinal rod (24) one end are provided with bearing holder (housing, cover) VII (50) and screw mandrel II (23) it is connected, the longitudinally central chute V (54) that is provided with of longitudinal rod (24), it is provided with screw mandrel III (32), screw mandrel III in chute V (54) (32) two ends are connected with longitudinal rod (24) two ends by bearing holder (housing, cover) IX (55), bearing holder (housing, cover) II (35), and screw mandrel III (32) is also by axle Bearing sleeve is connected with standing acoustic waves generator (25), and longitudinal rod (24) front end is additionally provided with motor D9, by gear pair E (36) with Screw mandrel III (32) is connected.

5. a kind of complexity stablizes sound field sound compression testing device, it is characterised in that described whole device moves Drive mechanism I base (2) under be provided with the motor D1 driving its motion, stepping electricity near one of them driving wheel (1) Machine D1 is connected with this driving wheel (1) by gear pair A (27), and the side of another driving wheel (1) under base (2) is provided with driving The motor D2, motor D2 of its motion is connected with this driving wheel (1) by gear pair B (28), and base (2) side also sets Having the electromagnetic detection mechanism (57) controlling its direction of motion, base (2) is provided with a motor D3, by gear and angulation Device sensor I (3) is connected, and protractor sensor I (3) is provided with range laser receptor I (4).

6. a kind of complexity stablizes sound field sound compression testing device, it is characterised in that described sound source reference bit Put measurement column VI and include stretch (43), support bar (42), sound source reference position measurement column pedestal (45), support bar (42) one end Being connected with sound source reference position measurement column pedestal (45), the other end is connected with stretch (43), and stretch (43) is provided with through hole (56) in stationary sound source reference position acoustic probes (44), through hole (56), one, it is additionally provided with for detecting sound source reference bit Put whether acoustic probes (44) is positioned at the position sensor K2 of sound source reference position measurement column VI, support bar (42) is additionally provided with tight Fixing bolt (39), is used for fixing stretch (43), and sound source reference position measurement column pedestal (45) is provided with motor D10, step Entering motor D10 to be connected with protractor sensor II (40) by gear, the laser that protractor sensor II (40) sets range finding is sent out Emitter I (41).

7. a kind of complexity stablizes sound field sound compression testing device, it is characterised in that described standing acoustic waves is sent out Raw device (25) includes that matrix (61), piezoelectric patches (60), acoustic tube (58), acoustic probes fix elastic rubber ring (59), piezoelectric patches (60) being connected with extrinsic motivated signal, acoustic tube (58) is positioned at matrix (61), and piezoelectric patches (60) is pressed close in acoustic tube (58) upper end, Lower end is fixed elastic rubber ring (59) and is connected with acoustic probes.

8. a kind of complexity stablizes sound field sound compression testing device, it is characterised in that point sound source standing acoustic waves is sent out Raw device (62) includes a special speaker.