CN105588637B - A kind of complicated stable sound field acoustic pressure test device - Google Patents
A kind of complicated stable sound field acoustic pressure test device Download PDFInfo
- Publication number
- CN105588637B CN105588637B CN201610102582.3A CN201610102582A CN105588637B CN 105588637 B CN105588637 B CN 105588637B CN 201610102582 A CN201610102582 A CN 201610102582A CN 105588637 B CN105588637 B CN 105588637B
- Authority
- CN
- China
- Prior art keywords
- acoustic
- array
- acoustic probes
- sliding slot
- stepper motor
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 108
- 239000000523 sample Substances 0.000 claims abstract description 141
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 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 33
- 238000001514 detection method Methods 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 15
- 238000004364 calculation method Methods 0.000 description 12
- 238000012937 correction Methods 0.000 description 9
- 238000001093 holography Methods 0.000 description 7
- 230000003044 adaptive effect Effects 0.000 description 6
- 235000013350 formula milk Nutrition 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008278 dynamic mechanism Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 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
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012800 visualization Methods 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
A kind of complicated stable sound field acoustic pressure test device of the present invention, it is related to a kind of acoustical testing device, include the driving mechanism I of whole device movement, acoustic probes array lifts and rotary drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustic probes array IV, acoustic probes array test channel correcting driving 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 acoustic pressure test device, the device installation and debugging are all fairly simple, a large amount of manpower and material resources can be reduced when measurement, the labor intensity of people can be mitigated, the precision of measurement data can be improved, the field operation of large complicated stable sound field can be especially suitable for simultaneously.
Description
Technical field
It is especially a kind of for the complicated new clothes for stablizing sound field acoustic pressure test the present invention relates to a kind of acoustical testing device
It sets.
Background technology
Nearfield acoustic holography is the forward position of acoustic investigation in recent years, can be more smart by Nearfield acoustic holography (NAH)
Identification of sound source and positioning really are carried out, near field sound field rebuilding and visualization, therefore, NAH technologies may be implemented with this technology
Research for inhibit noise pollution tool have very great significance, the key of NAH technologies is the sound how measured on holographic facet
Pressure distribution, and existing test device is all heavier, adjustment and installation is all very troublesome, and workload is very big, needs a large amount of
Manpower and material resources, and test result generally cannot scene complete, need to return to laboratory and handled, it is therefore necessary to be invented
A kind of small-sized, light-weighted novel acoustic pressure tests new equipment, which (is not the weight of the present invention in corresponding intelligence control system
Point, is not explained in detail here, sees the intelligence control system of the device applied on the same day with the present invention) control under, can adjust automatically
Examination, automatically corrects, automatic to test, and automatic result of calculation mitigates the labor intensity of people to reduce a large amount of manpower and material resources,
The field operation of large complicated stable sound field can be especially suitble to simultaneously.
Invention content
The object of the present invention is to provide a kind of small-sized, light-weighted new acoustic pressure test device, the device installation and debugging
All fairly simple, when measurement, can reduce a large amount of manpower and material resources, can mitigate the labor intensity of people, can improve and measure number
According to precision, while especially can be suitble to field operation.
In order to achieve the above objectives, the technical solution adopted by the present invention is：The device includes the driving machine of whole device movement
Structure I, 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 driving mechanism V, sound source reference position measurement column VI, point sound source standing acoustic waves generate
Device VII.The driving mechanism I of the whole device movement includes pedestal, and pedestal has driving wheel and universal wheel, is set on pedestal
There is electric appliance control box, passes through bearing holder (housing, cover) VIII and the cunning of the lifting of acoustic probes array and rotary drive mechanism II at pedestal centre
Slot I is connected, and the acoustic probes array lifting and rotary drive mechanism II include sliding slot I, the rack I in sliding slot I, in cunning
Slot I is equipped with the 5th stepper motor D5 at lower end, and the 5th stepper motor D5 is connected by gear I with rack I, on sliding slot I also
Equipped with range laser transmitter II, the bottom of sliding slot I is connected by gear pair C with the 4th stepper motor D4, and rack I is leaned on upper end
Nearly end of the end section equipped with range laser receiver II, rack I is equipped with screw hole I, flexible by bolt and acoustic probes array
The sliding slot II of driving mechanism III is connected；The acoustic probes array telescoping drive mechanism III, including sliding slot II are mounted in sliding slot II
Interior rack II is equipped with screw hole in the left end of sliding slot II, and by bolt and acoustic probes array lifts and rotary drive mechanism II
Rack I connect, sliding slot II left ends, which set the 6th, stepper motor D6, is connected with rack II by gear II, the right end of rack II is set
There is screw hole II, is connected with the main fixed arm of acoustic probes array by bolt, sliding slot II left ends are additionally provided with range laser transmitter
III, rack II right ends are equipped with range laser receiver III.
The further technical solution of the present invention：The acoustic probes array IV includes the main fixed arm of acoustic probes array, acoustics
The lower end of the main fixed arm of linear transducer array is equipped with screw hole, passes through the rack II of bolt and acoustic probes array telescoping drive mechanism III
It is connected, the main fixed arm of acoustic probes array is equipped with screw hole, divides fixed arm to be connected with a plurality of acoustic probes array by bolt, sound
Learning linear transducer array divides one end of fixed arm to be equipped with screw hole, is connected with the main fixed arm of acoustic probes array by bolt, acoustic probes
Array divides the through-hole that fixed arm is equipped with fixed acoustic probes, acoustic probes array main fixed arm middle and lower part position by screw hole with
Bolt is connected with acoustic probes array test channel correcting driving mechanism supporting support, which connects in channel correcting
On, when acoustic pressure is surveyed, do not connect supporting support, acoustic probes array main fixed arm middle and lower part position is additionally provided with for detecting acoustics
The main fixed arm of linear transducer array whether the first position being connected with acoustic probes array test channel correcting driving mechanism supporting support
Sensor K1 sets in the middle part of the main fixed arm of acoustic probes array there are one through-hole, joins for TCH test channel timing stationary sound source
Examine position acoustic probes, at the same set in through-hole there are one for detect sound source reference position acoustic probes whether be located at acoustic probes
The third place sensor K3 in the through-hole of the main fixed arm of array.
The further technical solution of the present invention：The acoustic probes array test channel correcting driving mechanism V includes square
Frame and standing acoustic waves generator three-dimensional motion control mechanism, square framework or so are equipped with sliding slot III, the mark on the inside of two sides
Quasi- sound wave generator three-dimensional motion control mechanism includes the cross bar for making standing acoustic waves generator move up and down, cross bar left and right ends
It is divided in the sliding slot III for being embedded in two sides of square framework or so, through-hole is equipped in the middle part of cross bar, passes through bearing holder (housing, cover) IV and lead screw I phases
Even, the lower ends lead screw I are connected by bearing holder (housing, cover) III with the following of square framework, and across the following and gear pair F of square framework
It is connected, the upper ends lead screw I are connected by bearing holder (housing, cover) V with the top of square framework, and square framework is additionally provided with the 8th stepper motor below
D8 is connected by gear pair F with lead screw I, and cross bar lateral center is equipped with sliding slot IV, and lead screw II is equipped in sliding slot IV, and lead screw II is left
Right end is connected by bearing holder (housing, cover) I, bearing holder (housing, cover) VI with cross bar two side ends respectively, and cross bar left end is equipped with the 7th stepper motor D7, passes through
Gear pair D is connected with lead screw II, and in addition lead screw II also makees the trolley of plane motion by bearing holder (housing, cover) VII with control sound wave generator
It is connected.
The further technical solution of the present invention：The trolley that the control sound wave generator does plane motion includes longitudinal
Bar, longitudinal rod one end are connected equipped with bearing holder (housing, cover) VII with lead screw II, and longitudinal rod is longitudinally central to be equipped with sliding slot V, and silk is equipped in sliding slot V
Bar III, the both ends lead screw III are connected by bearing holder (housing, cover) IX, bearing holder (housing, cover) II with longitudinal rod both ends, and lead screw III also passes through bearing holder (housing, cover) (figure
In be not drawn into) be connected with standing acoustic waves generator, longitudinal rod front end is additionally provided with the 9th stepper motor D9, passes through gear pair E and silk
Bar III is connected.
The further technical solution of the present invention：It is one of under the pedestal of the driving mechanism I of the whole device movement to drive
Driving wheel, which is nearby equipped with, drives the first stepper motor D1, the first stepper motor D1 of its movement to pass through gear pair A and the driving wheel phase
Even, the side of another driving wheel under pedestal, which is equipped with, drives the second stepper motor D2, the second stepper motor D2 of its movement logical
It crosses gear pair B with the driving wheel to be connected, pedestal side is additionally provided with the electromagnetic detection mechanism for controlling its direction of motion, and pedestal is equipped with
One third stepper motor D3 is connected by gear with protractor sensor I, and protractor sensor I connects equipped with range laser
Receive device I.
The further technical solution of the present invention：The sound source reference position measurement column VI includes stretch rod, supporting rod, sound
Source reference position measures base for post, and supporting rod one end measures base for post with sound source reference position and is connected, the other end and stretch rod phase
Even, stretch rod is equipped with through-hole, is used for stationary sound source reference position acoustic probes, and one is additionally provided in through-hole for detecting sound source
Whether reference position acoustic probes are located at the second position sensor K2 of sound source reference position measurement column VI, are additionally provided on supporting rod
Fastening bolt, for fixing stretch rod, sound source reference position measures base for post and is equipped with the tenth stepper motor D10, the tenth stepping
Motor D10 is connected by gear with protractor sensor II, and the laser emitter I of ranging is set on protractor sensor II.
The further technical solution of the present invention：The standing acoustic waves generator includes matrix, piezoelectric patches, acoustic tube, sound
Learn the fixed elastic rubber ring of probe, piezoelectric patches is connected with extrinsic motivated signal, and acoustic tube is located in matrix, acoustic tube upper end close to
Piezoelectric patches, lower end and acoustic probes fix the elastic rubber ring point sound source standing acoustic waves generator that is connected and include one and special raise one's voice
Device.
Since using the above structure, a kind of complicated sound field acoustic pressure test new equipment of stablizing of the present invention has below beneficial to effect
Fruit：
(1) device is simple, light and handy, and debugging is convenient.
A kind of complicated stable sound field acoustic pressure test device of the present invention, structure is very simple, also very light and handy, overcomes to live device
The disadvantage of middle heaviness, after only need to simply installing, behind all positioning and test be all (be not under control of the control system this
The emphasis of invention, is not described in detail herein) it carries out automatically, manual intervention is not needed, manpower and materials can be greatlyd save, is mitigated
The labor intensity of people, it is especially more obvious in large-scale, multi-point sampler complexity stablizes sound field.
(2) test data can be made more accurate, reliably.
A kind of complicated stable sound field acoustic pressure test device of the present invention reduces since most of work is not required to manual intervention
Human error, so keeping the data of test relatively reliable, accurately.
Complicated sound field acoustic pressure test device of stablizing a kind of to the present invention kind further illustrates with reference to the accompanying drawings and examples.
Description of the drawings
Fig. 1 is a kind of complicated stable sound field acoustic pressure test device agent structure schematic diagram of the present invention；
Fig. 2 is that a kind of complicated sound field acoustic pressure test device of stablizing of the present invention removes acoustic probes array test channel correcting
Driving mechanism structure main view direction schematic diagram；
Fig. 3 is that a kind of complicated sound field acoustic pressure test device of stablizing of the present invention removes the drive of acoustic probes array test channel correcting
Dynamic mechanism structure left view direction schematic diagram；
Fig. 4 is a kind of complicated stable sound field acoustic pressure test device acoustic probes array test channel correcting driving machine of the present invention
Structure structural schematic diagram；
Fig. 5 is a kind of complicated stable sound field acoustic pressure test device acoustic probes array test channel correcting driving machine of the present invention
The 7th stepper motor D7 connect side-looking direction schematic diagram with lead screw II 23 in structure；
Fig. 6 is a kind of complicated stable sound field acoustic pressure test device acoustic probes array test channel correcting driving machine of the present invention
The 8th stepper motor D8 connect overlook direction schematic diagram with lead screw I 21 in structure；
Fig. 7 is a kind of complicated stable sound field acoustic pressure test device acoustic probes array test channel correcting driving machine of the present invention
The 9th stepper motor D9 connect main view direction schematic diagram with lead screw III 32 in structure；
Fig. 8 is a kind of complicated stable sound field acoustic pressure test device sound source reference position measurement column structural schematic diagram of the present invention；
Fig. 9 is a kind of complicated stable sound field acoustic pressure test device standing acoustic waves generator schematic diagram of the present invention；
Figure 10 is that a kind of complicated sound field acoustic pressure test device point sound source standing acoustic waves of stablizing of the present invention give birth to device schematic diagram；
Figure 11 is a kind of complicated stable sound field acoustic pressure test device standing acoustic waves generator array schematic diagram of the present invention；
Figure 12 is a kind of complicated stable sound field acoustic pressure test device another kind acoustic probes array structure schematic diagram of the present invention；
Figure 13 is that a kind of complicated sound field acoustic pressure test device whole device of stablizing of the present invention reaches holographic facet to be measured from origin
The schematic diagram at place.
Main element label declaration：1- driving wheels, 2- pedestals, 3- protractor sensor I, 4- range laser receivers I, 5-
Electric appliance control box, 6- range laser transmitter II, 7- sliding slot I, 8- rack I, 9- range laser receiver II, 10- screw hole I, 11-
Range laser transmitter III, 12- sliding slot II, 13- rack II, 14- range laser receiver III, 15- screw hole II, 16- acoustics
The main fixed arm of linear transducer array, 17- acoustic probes arrays divide fixed arm, 18- acoustic probes, 19- acoustic probes array tests to lead to school
Positive driving mechanism supporting support, 20- square frameworks, 21- lead screw I, 22- cross bar, 23- lead screw 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 pairs C, 32-
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- fixing bolts, 40- protractor sensor II, 41- range laser transmitter I, 42- supporting rod, 43- stretch rods, 44- sound sources
Reference position acoustic probes, 45- sound sources reference position measure base for post, 46- through-holes, 47- bearing holder (housing, cover) IV, 48- bearing holder (housing, cover)s V, 49-
Bearing holder (housing, cover) VI, 50- bearing holder (housing, cover) VII, 51- bearing holder (housing, cover) VIII, 52- sliding slot III, 53- sliding slot IV, 54- sliding slot V, 55- bearing holder (housing, cover)
IX, 56 through-holes, 57- electromagnetic detections mechanism, 58- acoustic tubes, the fixed elastic rubber ring of 59- probes, 60- piezoelectric patches, 61- matrixes,
62- point sound source standing acoustic waves generators.
Specific implementation mode
As shown in Figures 1 to 10, a kind of complicated stable sound field acoustic pressure test device of the present invention, which includes whole device
The driving mechanism I of movement, 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 driving mechanism V, sound source reference position measurement column VI, point sound source
Standing acoustic waves generator VII.The driving mechanism I of whole device movement includes that pedestal 2, pedestal 2 have driving wheel 1 and ten thousand
To wheel 30, electric appliance control box 5 is equipped on pedestal 2, electric appliance control box 5 leads to for placing control circuit board at 2 centre of pedestal
It crosses bearing holder (housing, cover) VIII 51 with the sliding slot I 7 of the lifting of acoustic probes array and rotary drive mechanism II to be connected, the acoustic probes battle array
Row lifting and rotary drive mechanism II include sliding slot I 7, and the rack I 8 in the sliding slot I 7, rack I 8 can be with along sliding slot I 7
It moves up and down in sliding slot I 7, is equipped with the 5th stepper motor D5 at lower end in sliding slot I 7, the 5th stepper motor D5 is logical
It crosses gear I 26 with rack I 8 to be connected, when the 5th stepper motor motor D5 does positive and negative rotation campaign, power is transmitted by gear I 26
To rack I 8, band carry-over bar I 8 moves up and down, so as to drive acoustic probes array IV to rise or fall, sliding slot I 7
On be additionally provided with range laser transmitter II 6, the bottom of sliding slot I 7 is connected by gear pair C31 with the 4th stepper motor D4,
A gear is connected with sliding slot I 7 in gear pair C31, another gear is connected with the 4th stepper motor D4, the 4th stepper motor
When D4 does positive and negative rotation campaign, power is passed to by gear pair C31 by sliding slot I 7, so that sliding slot I 7 is rotated left and right, to drive
The IV rotations of acoustic probes array, can adjust the orientation of acoustic probes array IV, and 8 upper ends rack I are equipped with ranging close to end section
Laser pickoff II 9, the cooperation of range laser transmitter II 6 and range laser receiver II 9 are primarily used to measure tooth
The distance that I 8 rises or falls measures the distance that acoustic probes array IV rises or falls, the end of rack I 8 is equipped with
Screw hole I 10 is connected by bolt with the sliding slot II 12 of acoustic probes array telescoping drive mechanism III；The acoustic probes battle array
Row telescoping drive mechanism III, including sliding slot II 12, the rack II 13 in sliding slot II 12, rack II 13 can be in cunning
Extension or rear shrink movement are done in slot II 12, are equipped with screw hole in the left end of sliding slot II 12, are passed through bolt and acoustic probes array liter
The rack I 8 of drop and rotary drive mechanism II are connected, and 12 left ends of sliding slot II are equipped with the 6th stepper motor D6, pass through gear II 29
It is connected with rack II 13, when the 6th stepper motor D6 does positive and negative rotation campaign, power is passed to by gear II 29 by rack II
13, drive rack II 13 protract or retraction, to drive the extension or retraction of acoustic probes array IV, the right end of rack II 13
Equipped with screw hole II 15, it is connected by the main fixed arm of bolt and acoustic probes array 16,12 left ends of sliding slot II are additionally provided with ranging and swash
13 right end of optical transmitting set III 11, rack II is equipped with range laser receiver III 14, range laser transmitter III 11 and survey
Cooperation away from laser pickoff III 14 is mainly used to measure the distance of 13 extensions of rack II or retraction, that is, measures acoustic probes
The extension of array IV or the distance of retraction.
The acoustic probes array IV includes the main fixed arm 16 of acoustic probes array, the main fixed arm of acoustic probes array 16
Lower end is equipped with screw hole, is connected with the rack II 13 of acoustic probes array telescoping drive mechanism III by bolt, acoustic probes battle array
It arranges main fixed arm 16 and is equipped with screw hole, divide fixed arm 17 to be connected with a plurality of acoustic probes array by bolt, acoustic probes array
One end of point fixed arm 17 is equipped with screw hole, is connected by bolt and the main fixed arm of acoustic probes array 16, acoustic probes array divides
Fixed arm 17 is equipped with the through-hole of fixed acoustic probes 18, the main 16 middle and lower part position of fixed arm of acoustic probes array by screw hole with
Bolt is connected with acoustic probes array test channel correcting driving mechanism supporting support 19, the supporting support, in channel correcting
It connects, when acoustic pressure is surveyed, does not connect supporting support, the main 16 middle and lower part position of fixed arm of acoustic probes array is additionally provided with for detecting
What whether the main fixed arm of acoustic probes array 16 was connected with acoustic probes array test channel correcting driving mechanism supporting support 19
The middle part of first position sensor K1, the main fixed arm of acoustic probes array 16 are set there are one through-hole 46, are corrected for TCH test channel
When stationary sound source reference position acoustic probes 44, while setting that there are one for detecting sound source reference position acoustic probes 44 in through-hole
The third place sensor K3 whether being located in through-hole 46, acoustic probes 18 connect control mainly for detection of acoustic signal, output
(mainly description test device, control system be not detailed here here for amplifying unit in acoustical testing channel unit in system processed
Description).
The acoustic probes array test channel correcting driving mechanism V includes square framework 20 and standing acoustic waves generator three
Motion control mechanism is tieed up, sliding slot III 52 is equipped on the inside of 20 or so two sides of square framework, the standing acoustic waves generator is three-dimensional
Motion control mechanism includes the cross bar 22 for making standing acoustic waves generator 25 move up and down, 22 left and right ends of the cross bar point side of being embedded in
In the sliding slot III 52 on 20 or so two sides of type frame, 22 middle part of cross bar is equipped with through-hole, passes through bearing holder (housing, cover) IV 47 and lead screw I 21
It is connected, 21 lower ends lead screw I are connected by bearing holder (housing, cover) III 37 with the following of square framework 20, and across square framework 20
It is connected below with gear pair F38,21 upper ends lead screw I are connected by bearing holder (housing, cover) V 48 with the top of square framework 20, square framework
20 are additionally provided with the 8th stepper motor D8 below, are connected with lead screw I 21 by gear pair F38, in gear pair F38 gear with
8th stepper motor D8 is connected, and a gear is connected with lead screw I 21, when the 8th stepper motor D8 does positive and negative rotation campaign, Ke Yitong
It crosses gear pair F38 and power is transmitted to lead screw I 21, lead screw I 21 is driven to move, to drive cross bar 22 to move up and down, cross bar 22
Lateral center is equipped with sliding slot IV 53, and lead screw II 23 is equipped in sliding slot IV 53, and the ends lead screw II 23 or so pass through bearing holder (housing, cover) I respectively
33, bearing holder (housing, cover) VI 49 is connected with 22 two side ends of cross bar, 22 left end of cross bar be equipped with the 7th stepper motor D7, by gear pair D34 with
Lead screw II 23 is connected, and in addition lead screw II 23 also makees the trolley of plane motion by bearing holder (housing, cover) VII 50 with control sound wave generator
It is connected, a gear in gear pair D34 is connected with the 7th stepper motor D7, another gear is connected with II 23, the 7th stepping
When motor D7 does positive and negative rotation campaign, power is passed to by gear pair D34 by lead screw II 23, lead screw II 23 is driven to move, to
The trolley that control sound wave generator does plane motion is driven to do transverse movement.
The trolley that the control sound wave generator does plane motion includes longitudinal rod 24, and 24 one end of longitudinal rod is equipped with bearing
Set VII 50 is connected with lead screw II 23, and longitudinal rod 24 is longitudinally central to be equipped with sliding slot V 54, and lead screw III is equipped in sliding slot V 54
32 both ends 32, lead screw III are connected by bearing holder (housing, cover) IX55, bearing holder (housing, cover) II 35 with 24 both ends of longitudinal rod, and lead screw III 32 is also logical
Bearing holder (housing, cover) (being not drawn into figure) to be crossed with standing acoustic waves generator 25 to be connected, 24 front end of longitudinal rod is additionally provided with the 9th stepper motor D9,
It is connected with lead screw III 32 by gear pair E36, a gear is connected with the 9th stepper motor D9 in gear pair E36, another
Power, when the 9th stepper motor D9 does positive counter-movement, lead screw III is passed to by gear pair E36 by gear and lead screw III 32
32, lead screw III 32 is driven, to drive standing acoustic waves generator 25 to do longitudinal movement.
One of driving wheel 1, which is nearby equipped with, under the pedestal 2 of the driving mechanism I of the whole device movement drives its movement
The first stepper motor D1, the first stepper motor D1 be connected with the driving wheel 1 by gear pair A27, a tooth in gear pair A27
Wheel is connected with the first stepper motor D1, another gear is connected with driving wheel 1, passes through gear pair A27, the first stepper motor D1 handles
Power passes to driving wheel 1, makes its movement, and the side of another driving wheel 1 under pedestal 2 is equipped with the second stepping for driving its movement
Motor D2, the second stepper motor D2 are connected by gear pair B28 with the driving wheel 1, a gear and second step in gear pair B28
Stepper motor D2 is connected, another gear is connected with another driving wheel 1, and by gear pair B28, the second stepper motor D2 passes power
Driving wheel 1 is passed, its movement, 2 side of pedestal is made to be additionally provided with the electromagnetic detection mechanism 57 for controlling its direction of motion, be set on pedestal 2
There are one third stepper motor D3, are connected with protractor sensor I 3 by gear, and protractor sensor I 3 is equipped with ranging
The rotary motion of laser pickoff I 4, the second stepper motor D2 can be moved with protractor sensor I 3, to drive ranging to swash
Optical receiver I 4 is moved.
The sound source reference position measurement column VI includes stretch rod 43, supporting rod 42, sound source reference position measurement base for post
Seat 45,42 one end of supporting rod measure base for post 45 with sound source reference position and are connected, and the other end is connected with stretch rod 43, supporting rod 42
It is a hollow circular cylinder, boom 43 one end in position is inserted into supporting rod 42, can be equipped with through-hole with up-down stretch, stretch rod 43
56, stationary sound source reference position acoustic probes 44 are used for, one is additionally provided in through-hole 56 for detecting sound source reference position acoustics
Whether probe 44 is located at the second position sensor K2 of sound source reference position measurement column VI, and fastening bolt is additionally provided on supporting rod 42
39, for fixing stretch rod 42, sound source reference position measures base for post 45 and is equipped with the tenth stepper motor D10, the tenth stepping electricity
Machine D10 is connected by gear with protractor sensor II 40, and the laser emitter I of ranging is set on protractor sensor II 40
The movement of 41, the tenth stepper motor D10 can drive protractor sensor II 40, so as to drive the Laser emission of ranging
Device I 41 is moved, and laser emitter I 41 and range laser receiver I 4 can measure sound source reference position and acoustics to be measured is complete
Distance at breath at 2 center of test device pedestal, protractor sensor I 3 and protractor sensor II 40, can be with interception；
The standing acoustic waves generator 25 fixes elastic rubber ring 59 including matrix 61, piezoelectric patches 60, acoustic tube 58, acoustic probes,
Wherein piezoelectric patches 60 is adding pumping signal effect, is generating sound wave outside, and acoustic tube 58 is located in matrix 61,58 upper end of acoustic tube patch
Nearly piezoelectric patches 60, lower end are connected with acoustic probes fixation elastic rubber ring 59, and acoustic tube 58 is made by sound-absorbing material, can be to prevent
The only reflection of sound wave, when acoustical testing, that is, channel correcting test when, be sleeved in acoustic probes, acoustic probes fix elastic rubber ring
59, acoustical testing, fixed acoustic probes are being done, and seal, point sound source standing acoustic waves generator 62 includes a spy
The loud speaker of system is generating sound source outside plus under pumping signal effect.
Standing acoustic waves generator array can also be used as the standing acoustic waves generator described in a kind of variation, is such as schemed
11, in this way in 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, in addition Figure 12's is another acoustic probes array structure schematic diagram of the invention, the acoustic probes array
It is spherical arc shape to divide fixed arm, is particularly suitable for the measurement of spherical wave, therefore is not limited to form cited in examples detailed above, only
The transformation to be done within the scope of the invention belongs to scope of the invention, and in addition Figure 13 is a kind of complicated stable sound of the present invention
Field acoustic pressure test device whole device reaches the schematic diagram from holographic facet to be measured from origin.
The present invention it is a kind of it is complicated stablize sound field acoustic pressure test device intelligence control system (be not the emphasis of the present invention,
Here only briefly explain) it comprises the following modules：Control centre's module, accessory module and upper machine interface module, electromagnetic detection mould
Block, range finder module, acoustic pressure measuring and calculation module, whole device movement drive module, the lifting of acoustic probes array and rotation driving
Module, acoustic probes array telescopic drive module, acoustic probes array test channel correcting driving mechanism drive module, information are defeated
Enter display module, control process is system electrification, carries out control centre's module initialization first, whether then sentences initialization
Success, it is such as unsuccessful, then judge whether time-out, if not overtime, then continue to judge to initialize and whether succeed, is shown if overtime and be
System mistake, if initialized successfully, control centre's module sends out initialization command to each sub-module and sends out response confirmation letter
Number, then judge whether to receive whole answer signals, not receive all such as, then judges whether initialization is overtime, such as time-out, then
Display system mistake is then continued to determine whether to receive whole answer signals, such as be received if not overtime, then ready into system, can
To carry out acoustic pressure test, " prompt that sound source reference position and acoustic holography face to be measured center point coordinate please be input " is provided, then
The input of host computer coordinate data is judged whether there is, if not provided, being judged as whether presentation of information input module has coordinate input, such as
Have, then enters acoustic probes array co-ordinates and position split flow, if it has not, then continuing to judge whether host computer has coordinate data defeated
Enter, if host computer has coordinate input, also enters acoustic probes array co-ordinates and position split flow, acoustic probes array co-ordinates are fixed
After the split flow of position, then enter acoustic pressure measuring and calculation split flow, after acoustic pressure measuring and calculation split flow, then judges that test is appointed
Whether business terminates, and such as terminates, then task terminates, and such as also has and enters next measuring point, then returns to and judge whether host computer has seat
Data input is marked, into test assignment next time.
It is sound source reference position and sound to be measured first that the acoustic probes array co-ordinates positioning, which shunts process control process to be,
Coordinate input at holographic facet center is learned, the size by the two coordinates plus device finds out device pedestal 2 central point in place's to be measured
The coordinate at place, then judge sound source reference position measurement column VI whether be located at sound source reference position, if be not provide " please
Sound source reference position measurement column is placed in sound source reference position " prompt message, while judging sound source reference position measurement column again
Whether be located at sound source reference position, if so, then judge coordinate where from sound source reference position to 2 central point of pedestal to be measured it
Between electromagnetism thin wire whether set up, the prompt message for " money being asked to be laid with electromagnetism thin wire " if it has not, then provide such as is set up
, please judge whether entire test device is located at sound source reference position, if not, utilizing the straighforward operation hand in accessory module
The driving of handle input signal the one the second stepper motor D1, D2 drive entire test device to reach near acoustic holography face to be measured
Position inputs if so, then judging whether there is the input of remote-control handle signal if any the straighforward operation handle in accessory module is then utilized
Signal driving the one the second stepper motor D1, D2 make entire test device reach acoustic holography face to be measured neighbouring position, if it has not,
Automatically the one the second stepper motor D1 of driving, D2 make entirely to test dress the signal that system is then returned according to electromagnetic detection module feedback
It sets and reaches acoustic holography face to be measured neighbouring position, the 3rd the tenth stepper motor D3, D10 is then driven to drive protractor sensor I
3, protractor sensing II 40 is rotated, and protractor senses on range laser receiver I 4, protractor sensor II 40 on I 3
Ranging is all rotated therewith away from laser emitter I 41, enables the signal of range laser transmitter I 41 by ranging laser pickoff I
4 receive, measure sound source reference position with whole device center chassis at a distance from, in addition protractor sensor I 3, protractor biography
The angle of sensor II 40, measures orientation, along with the coordinate of sound source reference position and the size of device, passes through space coordinate
Transformation for mula calculates coordinate at acoustic holography center to be measured, then judges coordinate and setting at acoustic holography center to be measured
It is identical, as identical, terminate, such as differ, then leads to the orientation of driving third stepper motor D3 adjustment acoustic probes arrays, lead to
The 4th stepper motor D4 that overdrives adjusts the height of acoustic probes array IV, and adjusting acoustics by the 5th stepper motor D5 of driving visits
The length of head array extension retraction, is corrected coordinate, if it does not reach requirement also, then suitably by driving the first second step
Stepper motor D1, D2 corrects again, keeps coordinate at the center of acoustic holography face to be measured identical as setting coordinate, in the 4th the 5th step
While stepper motor D4, D5 works, range laser II transmitters, range laser III transmitters, are surveyed range laser II receivers
Work is also begun to away from laser III receivers, height, length are measured.
The pressure measuring and calculation step split flow is to enter the stream after acoustic probes array co-ordinates position split flow
Journey, the first step of the flow 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 selecting switch is directed toward point sound source standing acoustic waves generator 62, then judges that sound source is joined
Examine whether position acoustic probes 44 return to sound source reference position measurement column VI, if not, " please put back to " prompt message is provided,
If so, then the internal control unit of acoustic pressure measuring and calculation module sends out a standard frequency control word, which generates a mark
Quasi- acoustic signals, the signal are(power amplification is not carried out to signal for convenience of description here, signal is put
Greatly, it is the same only to have added a coefficient, algorithm, and k is wave number in formula, and r is the distance of acoustic propagation), then start f+1 drive tests
It pings, wherein the roads f connect sound source reference position TCH test channel, each road TCH test channel tests N number of data, then uses standard sound
Wave signalReference input of the centrifugal pump as adaptive algorithm, standing acoustic waves signal adds ambient noise signal y
The signal of the centrifugal pump of=u+noise, i.e. each TCH test channel acquisition output is inputted as the source signal of adaptive algorithm, really
The initial value of fixed step size and adaptive algorithm weights, the error signal e (n) obtained using adaptive algorithm formula are exactly each survey
The centrifugal pump noise of the ambient noise noise pingedl(n), wherein l is 0 to f, and n is 0 to N, is then shut off acoustic pressure tester
DDS output channels in module are calculated, acoustic pressure actual measurement is carried out, under the work of lock-out pulse, each TCH test channel acquires p group data
xFκ(n), each group of N number of data, if this p group data is to measure p gained, uu=0, if it is primary under identical environment
P group data are measured in acquisition, then uu=1, the ranging from 0-f of wherein F, κ are 1 to p, and n is 0 to N, subsequently into actual measurement sound pressure meter
Step split flow is calculated, after actual measurement acoustic pressure calculates step split flow, then acoustic pressure measuring and calculation split flow terminates.
The control process steps of the TCH test channel aligning step split flow, the flow are：Input acoustic probes array
Line number and columns and the number f+1 of acoustic probes, and the frequency number h, juxtaposition variable F=f, τ=h that correct are needed, so
Judge whether sound source reference position acoustic probes 44 are located at the calibration of the main fixed arms of acoustic probes array IV 16 at through-hole 46 afterwards,
If not being the prompt message for providing " please be placed at calibration ", if so, then whether criterion letter sound wave generator 25 is located at initially
At position, if not being, standing acoustic waves generator 25 is set to be located at by acoustic probes array test channel correcting driving mechanism V initial
Then position judges again, if so, then the internal control unit of acoustic pressure measuring and calculation module surveys DDS interface list in module to acoustic pressure
Member, TCH test channel unit, standing acoustic waves generate the correlation units such as unit and send out response confirmation signal, then judge whether to receive complete
Portion's answer signal is repeatedly retransmitted in this way if not, judge whether repeatedly to retransmit, then provides that " acoustic pressure measuring and calculation module goes out
It is wrong " prompt message, otherwise detect whether to receive again and all confirm answer signals, if so, then determination frequency number τ variables whether
Such as it is 0 for 0 (whether the frequency number to be corrected tests), then flow terminates, and is such as not equal to 0, then acoustic pressure measuring and calculation mould
The high-velocity electrons selecting switch of block connects to standard wave producer 25, while F=F-1, τ=τ -1, is sent out by defined frequency in advance
The τ frequency control word generates a standard dextrorotation signal(this is complex signal, takes its imaginary part with regard to dextrorotation
Signal, similarly hereinafter), then judge whether F is -1, be such as -1, then return to whether detection τ is 0, be not such as 0, then acoustic probes battle array
Row TCH test channel correction driving mechanism V makes standing acoustic waves life device 25 be sleeved in the acoustic probes on the roads F, starts the correction on the roads F,
In the case where lock-out pulse synchronizes, N number of data are acquired, obtain this signalDiscrete data uF(n), this
Data and the standard signal provided with given frequency control word(standing acoustic waves life device is to be directly sleeved on acoustics spy
On head, the distance r of acoustic propagation is approximately equal to 0, while signal is not amplified, so acoustic signals are identical as excitation, if letter
It number is exaggerated, adds a correction factor, algorithm is the same, because following channel amplitude correction coefficient can carry out amplitude
Correction, does not account for the phase delay of the piezoelectric patches 60 in sound wave generator 25 here, because after signal stabilization, this phase angle
Very little, and can according to piezoelectric material formula it can be calculated that can be compensated by circuit, can also by algorithm into
Row compensation does not first consider this phase delay here for convenience of description, in addition because of all phase angle generally all phases
To phase angle, the i.e. phase angle of relative sound source reference position, i.e., the phase angle acquired using each TCH test channel subtracts sound source
The phase angle for joining position measurement channel, due to being the same piezoelectric patches, so phase delay caused by piezoelectric patches just eliminates)
Discrete signal Lτ(n) cross-spectrum, while two signals compose certainly to get the delay phase of the TCH test channel is gone outWherein F is 0 to f, T is period, μ
For signal delay time, a cos indicate that remaining rotation of negating, the roads f are the TCH test channel that sound source refers to cursor position, its delay phase
ForChannel amplitude rectification is that coefficient isτ is 1 to h.
The acoustic pressure Actual measurement step split flow is：Actual measurement acoustic pressure calculation process starts, and inputs uu, noisel(n),
xFκ(n), wherein l, F are 0 to f, and κ is 1 to p, then with the ambient noise noise of each road TCH test channell(n) it is reference signal
Input, with xFκ(n) it is used as source signal to input, determines adaptive step-length, the initial value with weights is found out using adaptive algorithm
Error signal e (n), so that it may obtain the sound source radiation signal s that each road TCH test channel detectsFκ(n) (signal is background
Noise signal is removed, and more clean signal is become), wherein F is 0 to f, and κ is 1 to p, is then acquired to each road TCH test channel
First group of data carry out Fast Fourier Transform (FFT), that is, hF1=fft (sF1(n)) it, then finds out corresponding to frequency domain data medium wave peak
Frequency and amplitude substantially estimated value, then frequency spectrum is corrected using power enhanced, that is, is utilized respectively formula：
Frequency and amplitude are corrected, whereinM generally takes 1 or 2, XkFor frequency spectrum in Fast Fourier Transform (FFT)
The complex value spectrum of k location, K in figuretFor energetic coefficient of restitution, KtSelection it is generally related with the selection of window letter, when with Hanning windows
Generally take 8/3, δFτFor channel amplitude correction coefficient, i.e., the channel amplitude correction coefficient that TCH test channel correction split flow acquires, from
And acquire the amplitude A of frequency component sound wave of the sound source spoke signal on each TCH test channelFτWith frequency wFτ, wherein F is 0 to arrive
F, τ are 1 to m, the points that N fast Fouriers calculate, and are tested each with amplitude using obtained frequency after the end of the step
The m frequency component in channel asks phase angle, i.e., the frequency obtained using each channel to form m simple signal with amplitude, i.e.,This signal discrete turns to gFτ(n), then this m simple signal is mutual with the p group data in the channel respectively
Spectrum is 0 and energy principle of invariance using signal in orthogonal, so that it may which in the hope of the TCH test channel, acoustic signals are being surveyed under the frequency
The p groups phase angle of point：
Wherein F is 0 to f, and κ is 1 to p, and τ arrives m for 1.Then variable uu is judged, if uu=0,Wherein F is 0 to f, and κ is 1 to p, and τ arrives m for 1, if uu ≠ 0,
Wherein F is 0 to f, and κ is 1 to p, and τ arrives m for 1, and Δ t accepts and believe interval for p group data adjacent sets data groups, and then the 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.,ΨfτFor the phase angle of sound source reference position TCH test channel, wherein F is 0 to f, and τ is 1 to m, such as to find out 0
Phase angle to the roads f-1 TCH test channel relative to sound source reference position can subtract sound with the phase angle of each road TCH test channel
The phase angle of source reference position, this phase angle are unrelated with the time, only the distance dependent with Acoustic Wave Propagation, i.e.,：∏Fτ=ΨFτ-
ΨfτSo far the phase, frequency, amplitude of each frequency component sound wave of whole TCH test channels have been gone out entirely：∏Fτ、wFτ、AFτ, wherein F
Be 0 to arrive f-1, τ is 1 to arrive m, above TCH test channel aligning step split flow and acoustic pressure Actual measurement step split flow all used change
τ is measured, wherein channel correcting flow τ is 1 to h, and τ is 1 to m in acoustic pressure Actual measurement step split flow, but in practical survey
When amount, h=m is taken.
Claims (7)
1. a kind of complicated stable sound field acoustic pressure test device, it is characterised in that the device includes the driving mechanism of whole device movement
I, 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 driving mechanism V, sound source reference position measurement column VI, point sound source standing acoustic waves occur
Device VII；The driving mechanism I of whole device movement includes that pedestal (2), pedestal (2) have driving wheel (1) and universal wheel
(30), it is equipped with electric appliance control box (5) on pedestal (2), passes through bearing holder (housing, cover) VIII (51) and acoustic probes at pedestal (2) centre
Array lifts and the sliding slot I (7) of rotary drive mechanism II is connected；The acoustic probes array lifting and rotary drive mechanism II packets
Sliding slot I (7) is included, the rack I (8) in sliding slot I (7) is equipped with the 5th stepper motor (D5) in sliding slot I (7) at lower end,
5th stepper motor (D5) is connected by gear I (26) with rack I (8), and range laser transmitter II is additionally provided on sliding slot I (7)
(6), the bottom of sliding slot I (7) is connected by gear pair C (31) with the 4th stepper motor (D4), and rack I (8) upper end is close to end
Range laser receiver II (9) is equipped at section, the end of rack I (8) is equipped with screw hole I (10), passes through bolt and acoustic probes battle array
The sliding slot II (12) of row telescoping drive mechanism III is connected；The acoustic probes array telescoping drive mechanism III, including sliding slot II
(12), the rack II (13) being mounted in sliding slot II (12) is equipped with screw hole in the left end of sliding slot II (12), is visited by bolt and acoustics
Head array lifts and the rack I (8) of rotary drive mechanism II is connected, and sliding slot II (12) left end is equipped with the 6th stepper motor (D6),
It is connected with rack II (13) by gear II (29), the right end of rack II (13) is equipped with screw hole II (15), passes through bolt and acoustics
The main fixed arm of linear transducer array (16) is connected, and sliding slot II (12) left end is additionally provided with range laser transmitter III (11), rack II (13)
Right end is equipped with range laser receiver III (14).
2. a kind of complicated stable sound field acoustic pressure test device as described in claim 1, it is characterised in that the acoustic probes battle array
Row IV includes the main fixed arm of acoustic probes array (16), and the lower end of the main fixed arm of acoustic probes array (16) is equipped with screw hole, passes through
Bolt is connected with the rack II (13) of acoustic probes array telescoping drive mechanism III, on the main fixed arm of acoustic probes array (16)
Equipped with screw hole, fixed arm (17) is divided to be connected with a plurality of acoustic probes array by bolt, acoustic probes array divides fixed arm (17)
One end be equipped with screw hole, be connected with the main fixed arm of acoustic probes array (16) by bolt, acoustic probes array divides fixed arm
(17) be equipped with the through-hole of fixed acoustic probes (18), the main fixed arm of acoustic probes array (16) middle and lower part position by screw hole with
Bolt is connected with acoustic probes array test channel correcting driving mechanism supporting support (19), the supporting support, in channel correcting
When connect, when acoustic pressure is surveyed, do not connect supporting support, the main fixed arm of acoustic probes array (16) middle and lower part position, which is additionally provided with, to be used for
Detect the main fixed arm of acoustic probes array (16) whether with acoustic probes array test channel correcting driving mechanism supporting support
(19) connected first position sensor (K1) is set there are one through-hole (46) in the middle part of the main fixed arm of acoustic probes array (16),
For TCH test channel timing stationary sound source reference position acoustic probes (44), while setting that there are one for detecting sound source in through-hole
Whether reference position acoustic probes (44) are located at the third place sensor (K3) in through-hole (46).
3. a kind of complicated stable sound field acoustic pressure test device as described in claim 1, it is characterised in that the acoustic probes battle array
It includes square framework (20) and standing acoustic waves generator three-dimensional motion control mechanism, square that row TCH test channel, which corrects driving mechanism V,
Frame (20) left and right two is equipped with sliding slot III (52) on the inside of side, and the standing acoustic waves generator three-dimensional motion control mechanism includes
The cross bar (22) that standing acoustic waves generator (25) moves up and down, cross bar (22) left and right ends point is set to be embedded in square framework (20)
In the sliding slot III (52) on two sides in left and right, it is equipped with through-hole in the middle part of cross bar (22), passes through bearing holder (housing, cover) IV (47) and lead screw I (21) phase
Even, (21) lower ends lead screw I are connected by bearing holder (housing, cover) III (37) with the following of square framework (20), and pass through square framework
(20) following is connected with gear pair F (38), the top that (21) upper ends lead screw I pass through bearing holder (housing, cover) V (48) and square framework (20)
It is connected, square framework (20) is additionally provided with the 8th stepper motor (D8) below, is connected with lead screw I (21) by gear pair F (38), horizontal
Bar (22) lateral center is equipped with sliding slot IV (53), and lead screw II (23), lead screw II (23) left and right end difference are equipped in sliding slot IV (53)
It is connected with cross bar (22) two side ends by bearing holder (housing, cover) I (33), bearing holder (housing, cover) VI (49), cross bar (22) left end is equipped with the 7th stepper motor
(D7), it is connected with lead screw II (23) by gear pair D (34), in addition lead screw II (23) also passes through bearing holder (housing, cover) VII (50) and control
The trolley that sound wave generator does plane motion is connected.
4. a kind of complicated stable sound field acoustic pressure test device as claimed in claim 3, it is characterised in that the control sound wave production
The trolley that raw device does plane motion includes longitudinal rod (24), and longitudinal rod (24) one end is equipped with bearing holder (housing, cover) VII (50) and lead screw II
(23) it is connected, longitudinal rod (24) is longitudinally central to be equipped with sliding slot V (54), and lead screw III (32), lead screw III are equipped in sliding slot V (54)
(32) both ends are connected by bearing holder (housing, cover) IX (55), bearing holder (housing, cover) II (35) with longitudinal rod (24) both ends, and lead screw III (32) also passes through axis
Bearing sleeve is connected with standing acoustic waves generator (25), and longitudinal rod (24) front end is additionally provided with the 9th stepper motor (D9), passes through gear pair E
(36) it is connected with lead screw III (32).
5. a kind of complicated stable sound field acoustic pressure test device as described in claim 1, it is characterised in that the whole device movement
Driving mechanism I pedestal (2) under one of driving wheel (1) nearby be equipped with drive its movement the first stepper motor (D1),
First stepper motor (D1) is connected by gear pair A (27) with the driving wheel (1), another driving wheel (1) under pedestal (2)
Side is equipped with the second stepper motor (D2) for driving its movement, and the second stepper motor (D2) passes through gear pair B (28) and the driving
(1) is taken turns to be connected, pedestal (2) side is additionally provided with the electromagnetic detection mechanism (57) for controlling its direction of motion, set on pedestal (2) there are one
Third stepper motor (D3) is connected by gear with protractor sensor I (3), and protractor sensor I (3) swashs equipped with ranging
Optical receiver I (4).
6. a kind of complicated stable sound field acoustic pressure test device as described in claim 1, it is characterised in that the sound source reference bit
It includes stretch rod (43), supporting rod (42), sound source reference position measurement base for post (45), supporting rod (42) one end to set measurement column VI
Base for post (45) is measured with sound source reference position to be connected, the other end is connected with stretch rod (43), and stretch rod (43) is equipped with through-hole
(56), stationary sound source reference position acoustic probes (44) are used for, one is additionally provided in through-hole (56) for detecting sound source reference bit
The second position sensor (K2) whether acoustic probes (44) are located at sound source reference position measurement column VI is set, is gone back on supporting rod (42)
Equipped with fastening bolt (39), for fixing stretch rod (43), sound source reference position measures base for post (45) and is equipped with the tenth stepping
Motor (D10), the tenth stepper motor (D10) are connected by gear with protractor sensor II (40), protractor sensor II
(40) the laser emitter I (41) of ranging is set on.
7. a kind of complicated stable sound field acoustic pressure test device as claimed in claim 3, it is characterised in that the standing acoustic waves production
Raw device (25) includes matrix (61), piezoelectric patches (60), acoustic tube (58), acoustic probes fixation elastic rubber ring (59), piezoelectric patches
(60) be connected with extrinsic motivated signal, acoustic tube (58) is located in matrix (61), acoustic tube (58) upper end close to piezoelectric patches (60),
Lower end fixes elastic rubber ring (59) with acoustic probes and is connected.
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 |
|---|---|---|---|
| CN201610074474X | 2016-01-31 | ||
| CN201610074474 | 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 CN105588637A (en) | 2016-05-18 |
| CN105588637B true 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) |
Families Citing this family (10)
| 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 |
| CN106840374A (en) * | 2017-01-06 | 2017-06-13 | 上海交通大学 | Array scanning noise-measuring system |
| 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 |
| 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 |
| CN110243460B (en) * | 2019-05-16 | 2021-02-09 | 西安交通大学 | Ultrasonic sound field measuring device and method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105588637A (en) | 2016-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105588637B (en) | A kind of complicated stable sound field acoustic pressure test device | |
| CN105675125B (en) | A kind of complicated stable sound field acoustic pressure test device intelligence control system | |
| CN110248303B (en) | Calibration method for microphone array precise calibration device | |
| CN103673893B (en) | Pipeline three direction displacement laser measuring device for measuring and method | |
| CN109031435B (en) | Nuclear magnetic resonance underground water directional detection system and detection method based on phased array | |
| CN1777819A (en) | Object position estimation system, apparatus and method | |
| CN105866031B (en) | A kind of scan table, scanned imagery device and method for Terahertz non-destructive testing | |
| CN104597841B (en) | System and method for compensating planeness of compact field plane scanning frame | |
| CN205670047U (en) | A kind of complexity stablizes sound field sound compression testing device intelligence control system | |
| CN205670046U (en) | A kind of complexity stablizes sound field sound compression testing device | |
| CN107727377B (en) | A kind of lasting accuracy test macro | |
| CN109782230B (en) | Free sound field small-sized acoustic holographic measurement and inversion device | |
| CN209590258U (en) | A kind of small-sized acoustical holography measurement of free found field and inverting device | |
| CN102871685B (en) | Method, device and system for correcting geometric parameters of ultrasonic probe | |
| CN106556859B (en) | A kind of ultrasonic signal excitation reception test method | |
| CN106500828A (en) | A kind of method that noise profile in driving cabin is voluntarily equipped in hand microphone array and its test | |
| CN209707674U (en) | A kind of free found field batch mouthpiece amplitude sensitivity and phase measurement device | |
| CN108415004B (en) | The measurement method of Scale Fiber-Optic Hydrophone Array full frequency band phase equalization | |
| CN102395095A (en) | Test method of omnidirectional microphone and test equipment thereof | |
| CN108594284A (en) | A kind of TDOA positioning performances detection method and system | |
| CN209095605U (en) | A kind of multi-axis machine arm stability test macro | |
| CN110022522B (en) | System and method for measuring resonant frequency of loudspeaker vibrating component excited by vibration exciter | |
| CN207502551U (en) | A kind of cross hole method s-wave velocity measuring instrument | |
| CN113093307A (en) | Dipole transmitting transducer testing device and method | |
| CN107576998A (en) | Human tracking system applied to interactive digital exhibition |
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 | ||
| 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 |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 |