CN205607927U - Holographic measurement system of optics of supersound wave field - Google Patents
Holographic measurement system of optics of supersound wave field Download PDFInfo
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- CN205607927U CN205607927U CN201620426794.2U CN201620426794U CN205607927U CN 205607927 U CN205607927 U CN 205607927U CN 201620426794 U CN201620426794 U CN 201620426794U CN 205607927 U CN205607927 U CN 205607927U
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- 238000005259 measurement Methods 0.000 title abstract description 11
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 238000002604 ultrasonography Methods 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract 2
- 239000000523 sample Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000001093 holography Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
本实用新型公开了一种超声波场的光学全息测量系统，包括光全息光路，还包括计算机、压电晶片和功率放大器，计算机上接有同步控制器和数字相机，同步控制器上接有波形发生器和脉冲激光器；光全息光路包括物光光路、参考光光路和第一分束镜，物光光路包括依次设置的扩束镜、第二分束镜和第一反射镜，参考光光路包括设置在第二分束镜下方的第三分束镜和设置在第三分束镜下方的第二反射镜，第一分束镜设置在第一反射镜的下方，压电晶片设置在第一分束镜的正下方。本实用新型实现方便，灵敏度高，测量精度高，测量效率高，频带宽，空间分辨率高，实用性强，使用效果好，便于推广使用。
The utility model discloses an optical holographic measurement system for an ultrasonic field, which comprises an optical holographic optical path, a computer, a piezoelectric chip and a power amplifier, a synchronous controller and a digital camera are connected to the computer, and a waveform generator is connected to the synchronous controller. The optical holographic optical path includes an object light path, a reference light path and a first beam splitter mirror, the object light path includes a beam expander mirror, a second beam splitter mirror and a first mirror arranged in sequence, and the reference light path includes a set The third beam splitter below the second beam splitter and the second reflection mirror arranged below the third beam splitter, the first beam splitter is arranged below the first reflection mirror, and the piezoelectric wafer is arranged on the first splitter. directly below the beam mirror. The utility model has the advantages of convenient realization, high sensitivity, high measurement precision, high measurement efficiency, wide frequency band, high spatial resolution, strong practicability, good use effect and convenient popularization and use.
Description
Technical field
This utility model belongs to optical holographic technical field of imaging, is specifically related to the optics of a kind of ultrasound field
Holographic measurement system.
Background technology
In tradition acoustic field, frequently with high sensitivity hydrophone, the sound field in liquid is surveyed
Amount, and the size of hydrophone typically can only achieve about 1mm, and the spatial resolution of measurement is by shadow
Ring.And for the sound field in solid, can only measure transparent medium uses photoelastic method, and right
In other non-transparent medium, because inconvenient placement sensor in solid, so nontransparent solid dielectric
In acoustic field be always a great technical barrier.In order to solve this difficult problem, Mihailov
I.G. it is proposed that utilize electrodynamic method to measure the sound field of the surface of solids, the method will
Sample is placed in magnetic field, is coated with the narrow and thin metal tape of last layer as receptor at sample surfaces, passes through
Measuring the electric potential difference at metal tape two ends and then obtain the sound field in solid, the method sensitivity is low, needs
Uniform magnetic field, and measured sound field is the average sound pressure of metal tape, and measurement space differentiates rate variance.
Laser vibration measurer utilizes Doppler effect, can measure the vibration of body surface, measures frequency
Can reach MHz, displacement resolution can reach nm level, but spatial resolution is by the hot spot of laser
The restriction of size.And for high frequency sound field, frequency is up to tens MHz, therefore need high frequency high spatial badly
The surface of solids acoustic field measuring method of resolution.
Utility model content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to carry
The optical holographic measurement system of a kind of ultrasound field of confession, its simple in construction, reasonable in design, it is achieved convenient,
Highly sensitive, certainty of measurement is high, measures efficiency high, bandwidth, and spatial resolution is high, practical,
Using effect is good, it is simple to promote the use of.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of ultrasound field
Optical holographic measure system, including light holographic light path, it is characterised in that: also include computer, for
Place the piezoelectric chip of solid sample and for the power amplifier driving piezoelectric chip to vibrate, described meter
Isochronous controller and the digital camera being connected with isochronous controller, described isochronous controller it is connected on calculation machine
On be connected to waveform generator and pulse laser, the outfan of described power amplifier and waveform generator
Connecting, described piezoelectric chip is connected with the outfan of power amplifier；Described smooth holographic light path includes thing
Light light path, reference light light path and the first beam splitter, described object light light path includes setting gradually and and pulse
Laser instrument arranges beam expanding lens, the second beam splitter and the first reflecting mirror in the same horizontal line, described ginseng
Examine light light path include the 3rd beam splitter being arranged on below the second beam splitter and be arranged on the 3rd beam splitter
Lower section the second reflecting mirror, described first beam splitter be arranged on the first reflecting mirror lower section and with the 3rd point
Bundle mirror is arranged in the same horizontal line, and described piezoelectric chip is arranged on the underface of the first beam splitter, institute
Stating digital camera and be arranged on the side of the first beam splitter, described pulse laser is arranged on the side of beam expanding lens
Side.
The optical holographic of above-mentioned ultrasound field measures system, it is characterised in that: described power amplifier
Model be HSA4101.
The optical holographic of above-mentioned ultrasound field measures system, it is characterised in that: described digital camera is
CCD digital camera.
The optical holographic of above-mentioned ultrasound field measures system, it is characterised in that: described CCD numeral phase
The model of machine is PCO1600.
The optical holographic of above-mentioned ultrasound field measures system, it is characterised in that: described waveform generator
Model be AFG2021-SC.
The optical holographic of above-mentioned ultrasound field measures system, it is characterised in that: described pulse laser
For nanosecond laser.
The optical holographic of above-mentioned ultrasound field measures system, it is characterised in that: described pulse laser
Model be Nimma-400.
This utility model compared with prior art has the advantage that
1, simple in construction of the present utility model, reasonable in design, it is achieved convenient.
2, of the present utility model highly sensitive, certainty of measurement is high.
4, this utility model has only to digital camera and captures a width hologram, it becomes possible to rebuild super simultaneously
The phase and amplitude of sound wave, at least needs with traditional tv holography to capture compared with 3 secondary holograies, behaviour
Facilitate, measure efficiency high.
5, this utility model uses digital camera capture hologram, is equivalent to substitute with digital camera surpass
Acoustic array probe receives ultrasonic field, overcomes a lot of technology limitation of conventional ultrasound phased array imaging,
Owing to the array element size density of digital camera is high, cannot reach therefore, it is possible to realize a lot of ultrasonic array probe
The performance arrived, such as broadband performance and high spatial resolution etc..
6, of the present utility model practical, using effect is good, it is simple to promote the use of.
In sum, simple in construction of the present utility model, reasonable in design, it is achieved convenient, highly sensitive,
Certainty of measurement is high, measures efficiency high, bandwidth, and spatial resolution is high, practical, using effect
Good, it is simple to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is done and further retouches in detail
State.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals:
1 computer；2 solid samples；3 piezoelectric chips；
4 power amplifiers；5 isochronous controllers；6 digital cameras；
7 waveform generators；8 pulse lasers；9 first beam splitters；
10 beam expanding lens；11 second beam splitters；12 first reflecting mirrors；
13 the 3rd beam splitters；14 second reflecting mirrors.
Detailed description of the invention
As it is shown in figure 1, the optical holographic of ultrasound field of the present utility model measures system, complete including light
Breath light path, also includes computer 1, for placing the piezoelectric chip 3 of solid sample 2 and for driving
Piezoelectric chip 3 vibration power amplifier 4, described computer 1 is connected to isochronous controller 5 and with
The digital camera 6 that isochronous controller 5 connects, described isochronous controller 5 is connected to waveform generator 7
With pulse laser 8, described power amplifier 4 is connected with the outfan of waveform generator 7, described
Piezoelectric chip 3 is connected with the outfan of power amplifier 4；Described smooth holographic light path include object light light path,
Reference light light path and the first beam splitter 9, described object light light path includes setting gradually and and pulse laser
8 arrange beam expanding lens the 10, second beam splitter 11 in the same horizontal line and the first reflecting mirror 12, institute
State reference light light path include being arranged on the 3rd beam splitter 13 below the second beam splitter 11 and be arranged on the
The second reflecting mirror 14 below three beam splitters 13, described first beam splitter 9 is arranged on the first reflecting mirror
The lower section of 12 and arrange in the same horizontal line with the 3rd beam splitter 13, described piezoelectric chip 3 is arranged
In the underface of the first beam splitter 9, described digital camera 6 is arranged on the side of the first beam splitter 9,
Described pulse laser 8 is arranged on the side of beam expanding lens 10.
In the present embodiment, the model of described power amplifier 4 is HSA4101.
In the present embodiment, described digital camera 6 is CCD digital camera.
In the present embodiment, the model of described CCD digital camera is PCO1600.
In the present embodiment, the model of described waveform generator 7 is AFG2021-SC.
In the present embodiment, described pulse laser 8 is nanosecond laser.
In the present embodiment, the model of described pulse laser 8 is Nimma-400.
The process when optical holographic using this utility model to carry out ultrasound field is measured is: by solid sample
After 2 are placed on piezoelectric chip 3, computer 1 gives waveform generator 7 by isochronous controller 5
Sending one to trigger signal, waveform generator 7 is just producing 6～8 cycles after receiving triggering signal
String signal also exports to power amplifier 4, and its sinusoidal signal received is carried out by power amplifier 4
Export to piezoelectric chip 3 after amplification, drive piezoelectric chip 3 to vibrate, produce ultrasound wave；Synchronization Control
Control digital camera 6 after device 5 time delay certain time to start, isochronous controller 5 time delay certain time again
Sending one to afterwards pulse laser 8 and trigger signal, pulse laser 8 produces after receiving triggering signal
A raw pulsed laser irradiation is on beam expanding lens 10；The arteries and veins that pulse laser 8 is produced by beam expanding lens 10
Impulse light is radiated at after expanding on the second beam splitter 11；Pulse laser is divided by the second beam splitter 11
From for an object light light beam and a reference light light beam；Object light light beam reflects through the first reflecting mirror 12
After, it is then passed through the first beam splitter 9 and is radiated on the surface of solid sample 2, before creating Object light wave；Ginseng
Examine light light beam to be radiated on the second reflecting mirror 14, through the second reflecting mirror 14 through the 3rd beam splitter 13
After reflection, it is then passed through the 3rd beam splitter 13 and arrives the first beam splitter 9；Reflect through solid sample 2
Object light wave before arrive the first beam splitter 9, and before the first beam splitter 9 is by Object light wave with reference light
Together, the photosensitive member surface at digital camera 6 produces interferes beam combination, forms a width holographic
Figure；Step 9, digital camera 6 record hologram, and are transferred to the hologram data of record calculate
Machine 1；Step 10, computer 1 store its hologram data received, and after subsequent treatment,
Just can reconstruct from hologram data and obtain ultrasonic sound field.
The above, be only preferred embodiment of the present utility model, not makees this utility model any
Limit, every according to this utility model technical spirit, above example is made any simple modification,
Change and equivalent structure change, all still fall within the protection domain of technical solutions of the utility model.
Claims (7)
1. the optical holographic of ultrasound field measures a system, including light holographic light path, it is characterised in that:
Also include computer (1), be used for placing the piezoelectric chip (3) of solid sample (2) and be used for driving
The power amplifier (4) that dynamic piezoelectric chip (3) vibrates, described computer (1) is connected to synchronize
Controller (5) and the digital camera (6) being connected with isochronous controller (5), described Synchronization Control
Waveform generator (7) and pulse laser (8), described power amplifier (4) it is connected on device (5)
It is connected with the outfan of waveform generator (7), described piezoelectric chip (3) and power amplifier (4)
Outfan connect；Described smooth holographic light path includes object light light path, reference light light path and the first beam splitter
(9), described object light light path includes setting gradually and being arranged on same level with pulse laser (8)
Beam expanding lens (10), the second beam splitter (11) and the first reflecting mirror (12), described reference on line
Light light path includes being arranged on the 3rd beam splitter (13) of the second beam splitter (11) lower section and is arranged on the
Second reflecting mirror (14) of three beam splitters (13) lower section, described first beam splitter (9) is arranged on
The lower section of the first reflecting mirror (12) and arranging in the same horizontal line with the 3rd beam splitter (13), institute
State piezoelectric chip (3) and be arranged on the underface of the first beam splitter (9), described digital camera (6)
Being arranged on the side of the first beam splitter (9), described pulse laser (8) is arranged on beam expanding lens (10)
Side.
2. measure system according to the optical holographic of the ultrasound field described in claim 1, it is characterised in that:
The model of described power amplifier (4) is HSA4101.
3. measure system according to the optical holographic of the ultrasound field described in claim 1, it is characterised in that:
Described digital camera (6) is CCD digital camera.
4. measure system according to the optical holographic of the ultrasound field described in claim 3, it is characterised in that:
The model of described CCD digital camera is PCO1600.
5. measure system according to the optical holographic of the ultrasound field described in claim 1, it is characterised in that:
The model of described waveform generator (7) is AFG2021-SC.
6. measure system according to the optical holographic of the ultrasound field described in claim 1, it is characterised in that:
Described pulse laser (8) is nanosecond laser.
7. measure system, its feature according to the optical holographic of the ultrasound field described in claim 1 or 6
It is: the model of described pulse laser (8) is Nimma-400.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426794.2U CN205607927U (en) | 2016-05-11 | 2016-05-11 | Holographic measurement system of optics of supersound wave field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426794.2U CN205607927U (en) | 2016-05-11 | 2016-05-11 | Holographic measurement system of optics of supersound wave field |
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| CN205607927U true CN205607927U (en) | 2016-09-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784845A (en) * | 2016-05-11 | 2016-07-20 | 西安科技大学 | Optical holographic measurement system and optical holographic measurement method for ultrasonic wave fields |
| CN110568080A (en) * | 2019-11-07 | 2019-12-13 | 南昌洋深电子科技有限公司 | Digital holographic detection system and method for wafer laser ultrasonic field |
| CN111213069A (en) * | 2018-07-27 | 2020-05-29 | 合刃科技（深圳）有限公司 | Obstacle avoidance device and method based on coherent light |
-
2016
- 2016-05-11 CN CN201620426794.2U patent/CN205607927U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784845A (en) * | 2016-05-11 | 2016-07-20 | 西安科技大学 | Optical holographic measurement system and optical holographic measurement method for ultrasonic wave fields |
| CN111213069A (en) * | 2018-07-27 | 2020-05-29 | 合刃科技（深圳）有限公司 | Obstacle avoidance device and method based on coherent light |
| CN111213069B (en) * | 2018-07-27 | 2023-09-12 | 合刃科技（深圳）有限公司 | Obstacle avoidance device and method based on coherent light |
| CN110568080A (en) * | 2019-11-07 | 2019-12-13 | 南昌洋深电子科技有限公司 | Digital holographic detection system and method for wafer laser ultrasonic field |
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