CN104359972A - Method and device for detecting physical property of object - Google Patents
Method and device for detecting physical property of object Download PDFInfo
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- CN104359972A CN104359972A CN201410609279.3A CN201410609279A CN104359972A CN 104359972 A CN104359972 A CN 104359972A CN 201410609279 A CN201410609279 A CN 201410609279A CN 104359972 A CN104359972 A CN 104359972A
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- A61B8/04—Measuring blood pressure
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Abstract
The invention discloses a method and device for detecting a physical property of an object. The method comprises the following steps: transmitting fixed frequency, ultrasonic waves with fixed amplitude and composite sound waves of low-frequency sound waves to a target object; receiving reflected waves of the ultrasonic waves; contrasting the phase change and amplitude change of the transmitting waves and reflected waves of the ultrasonic waves, so as to analyze the physical property of the object. The device comprises a controller, an analyzer, an ultrasonic receiver, a low-frequency sound wave generator and an ultrasonic generator, wherein the controller is connected with the ultrasonic generator and the low-frequency sound wave generator, and controls the transmitting of the ultrasonic generator and the low-frequency sound wave generator; the ultrasonic receiver is connected with the analyzer and further receives reflected waves of the ultrasonic waves, converts the reflected waves to an electrical signal and sends the electrical signal to the analyzer; the analyzer contrasts the phase change and amplitude change of transmitting waves and reflected waves of the ultrasonic waves and analyzes the physical property of the object. The method is simple, small in calculated amount and accurate in result, and the device is simple in structure and low in price.
Description
Technical field
The present invention relates to ultrasonic applications field, particularly relate to the method and apparatus of inspected object physical attribute.
Background technology
Run into interface in ultrasonic transmission process and reflection and refraction can occur, the physical attributes such as the power of reflection wave and the density at interface, hardness are closely related, by certain method as Doppler effect is analyzed hyperacoustic transmitted wave and reflection wave, thus the physical attribute of interface objects can be obtained.In prior art, if sound source and target object geo-stationary, the physical attributes such as the elasticity of quantitative test target object are so difficult to according to hyperacoustic reflection wave, and utilize Doppler effect to be also only only limitted to the analysis of target speed, be difficult to the quantitative test of the physical attributes such as the elasticity of object, and equipment price is high.
Summary of the invention
Fundamental purpose of the present invention is for providing a kind of method and apparatus of quick by ultrasound wave, simple measurement target thing physical attribute.
In order to realize foregoing invention object, in the embodiment of the present invention, first proposing a kind of method of inspected object physical attribute, comprising step:
The ultrasound wave of transmitting fixed frequency, fixed amplitude and the compound sound wave of low-frequency sound wave are to target object;
Receive hyperacoustic reflection wave;
Contrast echo ripple is being superimposed on phase place change and the changes in amplitude of low frequency wave out of phase reflection wave, the physical attribute of evaluating objects object.
Further, the ultrasound wave of described transmitting fixed frequency, fixed amplitude and the compound sound wave of low-frequency sound wave comprise to the implementation of target object:
Ultrasound wave transmitting is carried out by being attached to by ultrasonic generator on low-frequency sound generator.
Further, described hyperacoustic frequency is that 1 megahertz is to 50 megahertzes; Described all-bottom sound wave frequency is 10 hertz to 10000 hertz.
Further, cradle to the distance of target object of described compound sound wave is: 2 millimeters to 200 millimeters.
Further, the ultrasound wave of described transmitting fixed frequency, fixed amplitude and the compound sound wave of low-frequency sound wave comprise to the step of target object:
Launch the ultrasound wave of fixed frequency, fixed amplitude in the form of a pulse, send the low-frequency sound wave of fixed frequency and amplitude at test period in a continuous manner.
In the embodiment of the present invention, a kind of device of inspected object physical attribute is also provided, comprises controller, analyzer, ultrasonic receiver, low-frequency sound generator and ultrasonic generator;
Described controller connects ultrasonic generator and low-frequency sound generator, and the formation compound sound wave controlling the transmitting fixed frequency of ultrasonic generator and low-frequency sound generator, the ultrasound wave of fixed amplitude and low-frequency sound wave is to target object;
Described ultrasonic receiver linking parsing device, and receive hyperacoustic reflection wave, reflection wave is converted into electric signal and is sent to analyzer, analyzer contrast be superimposed upon low-frequency sound wave out of phase institute send hyperacoustic reflection wave phase place change and changes in amplitude, the physical property attribute of evaluating objects object.
Further, described ultrasonic generator is attached to low-frequency sound generator, and transmitting terminal is towards identical;
The transmitting terminal of described ultrasonic generator is positioned at the front of low-frequency sound generator, or is positioned at the side of low-frequency sound generator.
Further, described ultrasonic transmitter is piezoelectric film sensor or piezoceramic transducer.
Further, described low-frequency sound generator is piezoelectric ceramic loudspeaker.
Further, described low-frequency sound generator transmitting sound wave frequency is 10 hertz to 10000 hertz; Hyperacoustic frequency launched by described ultrasonic generator is that 1 megahertz is to 50 megahertzes.
Further, described controller controls the ultrasound wave that ultrasonic generator launches fixed frequency, fixed amplitude in the form of a pulse, sends the low-frequency sound wave of fixed frequency and amplitude in a continuous manner at test period.
Further, described ultrasonic generator is 2 millimeters to 200 millimeters to the distance of target object.
The method of inspected object physical attribute of the present invention, by low-frequency sound wave target object extruded and pull, and after ultrasound wave reflects on the target object being extruded and pullling, reflection wave because of this extruding and can pull the change of formation phase place, and hyperacoustic transmitted wave amplitude also because of this extruding and can pull generation changes in amplitude, according to the change of described phase place and changes in amplitude, just can the hardness of the quantitative evaluating objects object in non-direct contact ground, the physical attributes such as elasticity, method is simple, calculated amount is simpler relative to existing algorithm, result is more accurate, and the apparatus structure of this inspected object physical attribute is simple, low price.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of the method for inspected object physical attribute of the present invention;
Fig. 2 is the structural representation of the device of inspected object physical attribute of the present invention;
Fig. 3 is the piezoelectric film sensor of the device of inspected object physical attribute of the present invention and the unitized construction schematic diagram of piezoelectric ceramic loudspeaker.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to Fig. 1, the embodiment of the present invention provides a kind of method of inspected object physical attribute, comprises step:
The ultrasound wave of S1, transmitting fixed frequency, fixed amplitude and the compound sound wave of low-frequency sound wave are to target object; Described compound sound wave is the mixed recharge of ultrasound wave and low-frequency sound wave, in low-frequency sound wave is propagated in target object, to the extruding of the organization formation of target object and can pull, thus make the reflection wave of ultrasound wave on target object because this extruding produces phase place and changes in amplitude with pullling.Launch ultrasound wave and the low-frequency sound wave of fixed frequency, the frequency that low-frequency sound wave extruded and pullled target object is fixed, and makes hyperacoustic reflection wave present periodically-varied, convenient phase place and the changes in amplitude analyzing hyperacoustic reflection wave.In the present embodiment, hyperacoustic transmitting generally uses ultrasonic generator to launch, and low-frequency sound wave uses electrotriction tranducer to launch, and in this specific embodiment, ultrasonic generator is attached on electrotriction tranducer, obtain the compound sound wave that direction is identical with sound source position, and the volume launching ultrasound wave and low-frequency sound wave equipment can be reduced.Simple in order to during later stage quantitative test, the ratio of the amplitude of usual hyperacoustic amplitude and low-frequency sound wave is a constant;
S2, receive hyperacoustic reflection wave;
S3, contrast echo ripple change and changes in amplitude in the phase place of the low-frequency sound wave out of phase reflection wave of superposition, the physical attribute of evaluating objects object.Because hyperacoustic transmission frequency is fixed frequency and fixed amplitude, so, according to target object in the extruding of low-frequency sound wave with pull lower formation reflection wave, the phase place of reflection wave can produce periodically change with low-frequency sound wave; The ultrasound wave of reflection also due to the extruding of this low frequency and can pull the change producing periodic amplitude, so according to the phase place change measured and changes in amplitude, just can carry out determining quantitative analysis to some physical attributes of target object, obtain the analysis results such as the hardness of target object, elasticity.Namely target object forms to ultrasound wave the reflection that the reflection of the positive acoustic pressure of low frequency and low frequency bear reflection under acoustic pressure and noiseless pressure because the impact of low-frequency sound wave there will be, three kinds of different reflection cases repeat according to all-bottom sound wave frequency, the changes in amplitude of hyperacoustic reflection wave and phase place change closely related with the physical attribute of target object, and then to be quantized by the physical characteristics that specific algorithm can obtain object.Such as in analytic process, can using hyperacoustic reflection wave signal during low-frequency sound wave zero phase as benchmark, during positive acoustic pressure crest to low-frequency sound wave, during negative acoustic pressure trough with low-frequency sound wave of the amplitude of hyperacoustic reflection wave and phase place, the amplitude of hyperacoustic reflection wave and phase place compare, can the elasticity of quantitative test object, namely the changes in amplitude of hyperacoustic reflection wave becomes positive correlation with the elasticity of target object, and hyperacoustic reflection wave becomes negative correlation with the phase place change of transmitted wave with the elasticity of target object.
The method of the inspected object physical attribute of the present embodiment, by low-frequency sound wave target object extruded and pull, and after ultrasound wave reflects on the target object being extruded and pullling, therefore reflection wave can form phase place change, and therefore hyperacoustic transmitted wave amplitude also can form changes in amplitude, according to the change of described phase place and changes in amplitude, the physical attribute such as hardness, elasticity of evaluating objects object that just can be quantitative, method is simple, calculated amount is simpler relative to existing algorithm, and result is more accurate.
In the embodiment of the present invention, above-mentioned hyperacoustic frequency is that 1 megahertz is to 50 megahertzes; Above-mentioned all-bottom sound wave frequency is 10 hertz to 10000 hertz; The cradle of above-mentioned compound sound wave to the distance of target object is: 2 millimeters to 200 millimeters.The cradle of hyperacoustic frequency, all-bottom sound wave frequency and compound sound wave can according to measuring the frequency of different objects and correspondence and distance etc. to the distance of target object.
In one embodiment, the liver of human body is detected, the form selecting ultrasonic generator to be attached on electrotriction tranducer (a kind of low-frequency sound generator) launches compound sound wave, because liver is positioned at the inside comparatively deep location of human body, so select the ultrasound wave that can be transmitted to the frequency of liver position, should be noted that, if frequency is too high may not be delivered to liver, if frequency is too low, major part is all transmitted through liver, make reflection wave very little, so select hyperacoustic frequency to be 3.5 megahertzes in the present embodiment, all-bottom sound wave frequency is 500 hertz, and the distance that sound source is positioned at liver is about 100 millimeters, the Amplitude Ratio of ultrasound wave and low-frequency sound wave is constant.Ultrasonic generator transmission frequency is that the ultrasound wave of 3.5 megahertzes is to liver, electrotriction tranducer vibrations transmission frequency is that the low-frequency sound wave of 500 hertz is to liver, the low-frequency sound wave of 500 hertz carries out regular extruding to the position that liver receives sound wave and pulls, make frequency be 3.5 megahertzes ultrasound wave through liver extruding and pull position reflection, the contrast of hyperacoustic reflection wave and transmitted wave produces phase place and changes and changes in amplitude, the hardness of quantifying liver measured position is carried out by the algorithm of specifying, thus judge whether liver exists the pathology etc. of cirrhosis.
In another specific embodiment, human carotid is detected, the form selecting ultrasonic generator to be attached on electrotriction tranducer launches compound sound wave, because arteria carotis is positioned at the superficial place of human body, so select the ultrasound wave that can be transmitted to the frequency of arteria carotis position, so select hyperacoustic frequency to be 10.0 megahertzes, all-bottom sound wave frequency is 500 hertz.The low-frequency sound wave of 500 hertz carries out regular extruding to the position that arteria carotis receives sound wave and pulls, make frequency be 10.0 megahertzes ultrasound wave through carotid extruding and pull position reflection, after waiting process after filtering, hyperacoustic reflection wave changes and changes in amplitude because 500 hertz of low-frequency sound waves produce phase place to carotid impact, the hardness of quantitative test arteria carotis measured position is carried out by the algorithm of specifying, thus judge whether arteria carotis exists the pathology etc. of sclerosis, certainly, also the capillary change of arteria carotis can be derived according to the hardness after calibration, thus the carotid blood pressure of continuous coverage etc.
The present invention in one embodiment, launches the ultrasound wave of fixed frequency, fixed amplitude in the form of a pulse, sends the low-frequency sound wave of fixed frequency and amplitude in the mode of continuous wave simultaneously.Launch hyperacoustic equipment to exist as the hyperacoustic equipment of reception, enormously simplify system itself, also reduce the cost of checkout equipment.Such as in one embodiment, the equipment launching ultrasound wave and the hyperacoustic reflection wave of reception is same piezoelectric membrane, and the equipment launching low-frequency sound wave is piezoelectric ceramic piece, and cost is low, stable performance.If when the equipment launching ultrasound wave and the hyperacoustic reflection wave of reception is same equipment, should be noted that and launch ultrasound wave and receive hyperacoustic time interval, prevent hyperacoustic transmitted wave when the hyperacoustic reflection wave of reception from also influencing each other in transmitting, the result that impact detects.
With reference to Fig. 2, the embodiment of the present invention, also provides a kind of device of inspected object physical attribute, comprises controller 30, analyzer 40, ultrasonic receiver 50, low-frequency sound generator 20 and ultrasonic generator 10; Described controller 30 connects ultrasonic generator 10 and low-frequency sound generator 20, and controls the transmitting compound sound wave of ultrasonic generator 10 and low-frequency sound generator 20; Described ultrasonic receiver 50 linking parsing device 40, and receive hyperacoustic reflection wave, hyperacoustic reflection wave is converted into electric signal and is sent to analyzer 40, analyzer 40 contrast be superimposed upon low-frequency sound wave out of phase institute send hyperacoustic reflection wave phase place change and changes in amplitude, the physical property attribute of evaluating objects object, in analyzer 40, also can carry out the process such as filtering, irrelevant clutter is filtered out.
In one embodiment, above-mentioned controller 30 controls the compound sound wave of the transmitting fixed frequency of ultrasonic generator 10 and low-frequency sound generator 20, the ultrasound wave of fixed amplitude and low-frequency sound wave to target object; In low-frequency sound wave is propagated in target object, to the organization formation extruding of target object and can pull, thus make the reflection wave of ultrasound wave on target object produce phase place change.Launch ultrasound wave and the low-frequency sound wave of fixed amplitude, low-frequency sound wave extruding is identical with the force pullling target object, makes the distortion of object there is rule, thus makes hyperacoustic reflection wave present rule change.In the present embodiment, low-frequency sound wave uses electrotriction tranducer to launch, and in one embodiment, is attached on electrotriction tranducer by ultrasonic generator 10, obtain the compound sound wave that direction is identical with sound source position, and the volume launching ultrasound wave and low-frequency sound wave equipment can be reduced.Simple in order to during later stage quantitative test, the ratio of the amplitude of usual hyperacoustic amplitude and low-frequency sound wave is a constant.Described ultrasonic receiver 50 linking parsing device 40, and receive hyperacoustic reflection wave, reflection wave is converted into electric signal and is sent to analyzer 40, the phase place change of analyzer 40 contrast echo wave reflection ripple and changes in amplitude, the physical property attribute of evaluating objects object, because hyperacoustic transmission frequency is fixed frequency and fixed amplitude, so hyperacoustic transmitted wave is according to target object in the extruding of low-frequency sound wave with pull lower formation reflection wave, and the phase place of reflection wave can because this extruding produces phase place and changes with pullling; The amplitude of transmitted wave also because of this extruding and can pull generation changes in amplitude, so according to the phase place change measured and changes in amplitude, just can carry out determining quantitative analysis to target object, obtain the physical attributes such as the hardness of target object, elasticity.Namely target object forms to ultrasound wave the reflection that the reflection of the positive acoustic pressure of low frequency and low frequency bear reflection under acoustic pressure and noiseless pressure because the impact of low-frequency sound wave there will be, three kinds of different reflection cases repeat according to all-bottom sound wave frequency, the physical attribute of the changes in amplitude of hyperacoustic reflection wave and phase place change and target object is closely related, and then can be obtained the physical attribute of target by the algorithm of specifying.Such as in analytic process, can using hyperacoustic reflection wave signal during low-frequency sound wave 0 phase place as benchmark, during positive acoustic pressure crest to low-frequency sound wave, during negative acoustic pressure trough with low-frequency sound wave of the amplitude of hyperacoustic reflection wave and phase place, the amplitude of hyperacoustic reflection wave and phase place compare, can the elasticity of quantitative test object, namely hyperacoustic transmitted wave becomes positive correlation with the amplitude difference of reflection wave with the elasticity of target object, and hyperacoustic reflection wave becomes negative correlation with the phase differential of transmitted wave with the elasticity of target object.
In one embodiment of the invention, above-mentioned ultrasonic generator 10 is attached to low-frequency sound generator 20, and transmitting terminal is towards identical; The transmitting terminal of described ultrasonic generator 10 is positioned at the front of low-frequency sound generator 20, or is positioned at the side of low-frequency sound generator 20.That is, do not have barrier to block the transmit direction of ultrasonic generator 10, no person can affect hyperacoustic transmitting, affects final testing result.In one embodiment of the invention, above-mentioned ultrasonic transmitter is piezoelectric film sensor, and different piezoelectric film sensors can produce the ultrasound wave of different frequency range; Above-mentioned low-frequency sound generator 20 is piezoelectric ceramic piece 21, also can be the low-frequency vibration parts such as moving-coil speaker.In one embodiment, piezoelectric membrane is attached on the vibration component of piezoelectric ceramic piece, by different excitations, just can obtain the compound sound wave of ultrasound wave and low-frequency sound wave, structure is simple, low production cost, transmitting sound wave frequency and amplitude stabilization, can obtain the result of final inspection easily.As shown in Figure 3, low-frequency sound generator 20 is piezoelectric ceramic loudspeaker 21, piezoelectric ceramic loudspeaker 21 is arranged on sheet metal 22, and ultrasonic generator is piezoelectric film sensor 11, piezoelectric film sensor 11 covers and is arranged on the outside surface of piezoelectric ceramic loudspeaker 21, when in use, encourage piezoelectric ceramic loudspeaker 21 and piezoelectric film sensor 11 simultaneously, obtain compound sound wave; In the present embodiment, described piezoelectric film sensor 11 can replace with piezoceramic transducer.
In one embodiment of the invention, above-mentioned low-frequency sound generator 20 transmitting sound wave frequency is 10 hertz to 10000 hertz; Hyperacoustic frequency launched by described ultrasonic generator 10 is that 1 megahertz is to 50 megahertzes.The cradle of hyperacoustic frequency, all-bottom sound wave frequency and compound sound wave can according to measuring the frequency of different objects and correspondence and distance etc. to the distance of target object, and usual ultrasonic generator is 2 millimeters to 200 millimeters to the distance of target object.
In one embodiment, the liver of human body is detected, Selective Pressure conductive film 11 adheres on the vibration component with piezoelectric ceramic piece 21 launches compound sound wave, because liver is positioned at the inside comparatively deep location of human body, so select the ultrasound wave that can be transmitted to the frequency of liver position, should be noted that, if frequency is too high may not be delivered to liver, if frequency is too low, major part is all transmitted through liver, make reflection wave very little, so select hyperacoustic frequency to be 3.5 megahertzes in the present embodiment, all-bottom sound wave frequency is 500 hertz, and the distance that sound source is positioned at liver is about 100 millimeters, be generally and be close to human body skin, the Amplitude Ratio of ultrasound wave and low-frequency sound wave is constant.Piezoelectric membrane 11 transmission frequency is that the ultrasound wave of 3.5 megahertzes is to liver, piezoelectric ceramic piece transmission frequency is that the low-frequency sound wave of 500 hertz is to liver, the low-frequency sound wave of 500 hertz carries out regular extruding to the position that liver receives sound wave and pulls, make frequency be 3.5 megahertzes ultrasound wave through liver extruding and pull position reflection, the contrast of hyperacoustic reflection wave and transmitted wave produces phase place and changes and changes in amplitude, carried out the hardness of quantifying liver measured position by the algorithm of specifying, thus judge whether liver exists the pathology etc. of cirrhosis.
In another specific embodiment, human carotid is detected, the attachment of Selective Pressure conductive film and the vibration component of piezoelectric ceramic piece launch compound sound wave, because arteria carotis is positioned at the superficial place of human body, so select the ultrasound wave that can be transmitted to the frequency of arteria carotis position, so select hyperacoustic frequency to be 10.0 megahertzes, all-bottom sound wave frequency is 500 hertz.The low-frequency sound wave of 500 hertz carries out regular extruding to the position that arteria carotis receives sound wave and pulls, make frequency be 10.0 megahertzes ultrasound wave through carotid extruding and pull position reflection, after waiting process after filtering, hyperacoustic reflection wave changes and changes in amplitude because 500 hertz of low-frequency sound waves produce phase place to carotid impact, the hardness of quantitative test arteria carotis measured position is carried out by the algorithm of specifying, thus judge whether arteria carotis exists the pathology etc. of sclerosis, certainly, also the capillary change of arteria carotis can be derived according to the hardness after calibration, thus the carotid blood pressure of continuous coverage etc.
In one embodiment of the invention, described controller 30 controls low-frequency sound generator 20 and ultrasonic generator 10 and launches fixed frequency, the ultrasound wave of fixed amplitude and low-frequency sound wave in the form of a pulse, launch hyperacoustic equipment to exist as the hyperacoustic equipment of reception, enormously simplify system itself, namely described ultrasonic generator 10 and ultrasonic receiver 50 Integral design, further save the production cost of checkout equipment.Such as in one embodiment, the equipment launching ultrasound wave and the hyperacoustic reflection wave of reception is same piezoelectric membrane, and the equipment launching low-frequency sound wave is piezoelectric ceramic piece, and cost is low, stable performance.If when the equipment launching ultrasound wave and the hyperacoustic reflection wave of reception is same equipment, should be noted that and control launch ultrasound wave and receive hyperacoustic time interval, prevent hyperacoustic transmitted wave when the hyperacoustic reflection wave of reception from also influencing each other in transmitting, the result that impact detects.
The device of inspected object physical attribute of the present invention, controller 30 controls low-frequency sound generator 20 and launches low-frequency sound wave to target object, and low-frequency sound wave can extrude target object and pull; The ultrasound wave that controller 30 controls ultrasonic generator 10 transmitting reflects on the target object being extruded and pullling, reflection wave can form phase differential with the ultrasound wave launched, and hyperacoustic transmitted wave amplitude also can weaken and forms amplitude difference with transmitted wave, analyzer 40 is according to described phase differential and amplitude difference, just can the physical attribute such as hardness, elasticity of evaluating objects object qualitatively, method is simple, and calculated amount is simpler relative to existing algorithm, and result is more accurate.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (12)
1. a method for inspected object physical attribute, is characterized in that, comprises step:
The ultrasound wave of transmitting fixed frequency, fixed amplitude and the compound sound wave of low-frequency sound wave are to target object;
Receive the reflection wave that described ultrasound wave reflects from target object;
Contrast echo ripple changes and changes in amplitude in the phase place of the low-frequency sound wave out of phase reflection wave of superposition, the physical attribute of evaluating objects object.
2. the method for inspected object physical attribute according to claim 1, is characterized in that, the ultrasound wave of described transmitting fixed frequency, fixed amplitude and the compound sound wave of low-frequency sound wave comprise to the implementation of target object:
Ultrasound wave transmitting is carried out by being attached to by ultrasonic generator on low-frequency sound generator.
3. the method for inspected object physical attribute according to claim 1, is characterized in that, described hyperacoustic frequency is that 1 megahertz is to 50 megahertzes; Described all-bottom sound wave frequency is 10 hertz to 10000 hertz.
4. the method for inspected object physical attribute according to claim 1, is characterized in that, the cradle of described compound sound wave to the distance of target object is:
2 millimeters to 200 millimeters.
5. the method for the inspected object physical attribute according to any one of claim 1-4, is characterized in that, the ultrasound wave of described transmitting fixed frequency, fixed amplitude and the compound sound wave of low-frequency sound wave comprise to the step of target object:
Launch the ultrasound wave of fixed frequency, fixed amplitude in the form of a pulse; Meanwhile, the low-frequency sound wave of fixed frequency and amplitude is sent in a continuous manner at test period.
6. a device for inspected object physical attribute, is characterized in that, comprises controller, analyzer, ultrasonic receiver, low-frequency sound generator and ultrasonic generator;
Described controller connects ultrasonic generator and low-frequency sound generator, and the formation compound sound wave controlling the transmitting fixed frequency of ultrasonic generator and low-frequency sound generator, the ultrasound wave of fixed amplitude and low-frequency sound wave is to target object;
Described ultrasonic receiver linking parsing device, and receive hyperacoustic reflection wave, reflection wave is converted into electric signal and is sent to analyzer, analyzer contrast be superimposed upon low-frequency sound wave out of phase institute send hyperacoustic reflection wave phase place change and changes in amplitude, the physical attribute of evaluating objects object.
7. the device of inspected object physical attribute according to claim 6, is characterized in that, described ultrasonic generator is attached to low-frequency sound generator, and transmitting terminal is towards identical;
The transmitting terminal of described ultrasonic generator is positioned at the front of low-frequency sound generator, or is positioned at the side of low-frequency sound generator.
8. the device of inspected object physical attribute according to claim 6, is characterized in that, described ultrasonic transmitter is piezoelectric film sensor or piezoceramic transducer.
9. the device of inspected object physical attribute according to claim 6, is characterized in that, described low-frequency sound generator is piezoelectric ceramic loudspeaker.
10. the device of inspected object physical attribute according to claim 6, is characterized in that, described low-frequency sound generator transmitting sound wave frequency is 10 hertz to 10000 hertz; Hyperacoustic frequency launched by described ultrasonic generator is that 1 megahertz is to 50 megahertzes.
The device of 11. inspected object physical attributes according to any one of claim 6-10, it is characterized in that, described controller controls the ultrasound wave that ultrasonic generator launches fixed frequency, fixed amplitude in the form of a pulse, sends the low-frequency sound wave of fixed frequency and amplitude in a continuous manner at test period.
The device of 12. inspected object physical attributes according to claim 11, is characterized in that, described ultrasonic generator is 2 millimeters to 200 millimeters to the distance of target object.
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| CN201410609279.3A CN104359972A (en) | 2014-10-31 | 2014-10-31 | Method and device for detecting physical property of object |
| PCT/CN2015/084151 WO2016065955A1 (en) | 2014-10-31 | 2015-07-15 | Method and device for detecting physical property of object |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410609279.3A CN104359972A (en) | 2014-10-31 | 2014-10-31 | Method and device for detecting physical property of object |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016065955A1 (en) * | 2014-10-31 | 2016-05-06 | 杨松 | Method and device for detecting physical property of object |
| CN107577378A (en) * | 2017-07-31 | 2018-01-12 | 努比亚技术有限公司 | A kind of system control method, terminal and computer-readable recording medium |
| CN107917959A (en) * | 2017-12-05 | 2018-04-17 | 爱德森（厦门）电子有限公司 | A kind of composite material Acoustic detection sensor and detection method |
| CN108072872A (en) * | 2016-11-17 | 2018-05-25 | 富士通株式会社 | Information extracting device, article detection apparatus |
| CN109212482A (en) * | 2018-09-12 | 2019-01-15 | 北京小米移动软件有限公司 | Sound wave detecting method and device |
| CN109855703A (en) * | 2018-12-20 | 2019-06-07 | 北京铂阳顶荣光伏科技有限公司 | The detection device and detection method of source metal surplus, evaporated device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343310A (en) * | 1999-03-15 | 2002-04-03 | 弹性测量体系弹性推动公司 | Image method and device using shearing waves |
| CN1674827A (en) * | 2002-08-08 | 2005-09-28 | 回波检测公司 | Device and method for measuring the elasticity of a human or animal organ |
| CN101506683A (en) * | 2006-08-22 | 2009-08-12 | 超声成像公司 | Ultrasound imaging probe for imaging a temporary change in an environment |
| CN101699280A (en) * | 2009-10-15 | 2010-04-28 | 北京索瑞特医学技术有限公司 | Method and device for ultrasonic and nondestructive detection ofelasticity of viscoelastic medium |
| CN101912278A (en) * | 2010-08-12 | 2010-12-15 | 陈庆武 | Ultrasound dynamic elastic imaging probe and method |
| CN102151152A (en) * | 2011-03-01 | 2011-08-17 | 深圳市一体医疗科技股份有限公司 | Measurement probe, system and method for measuring elasticity of viscoelastic medium |
| CN104013388A (en) * | 2014-06-13 | 2014-09-03 | 中国医学科学院生物医学工程研究所 | Magneto-acoustic coupling imaging excitation and detection method and device based on low-frequency continuous waves |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2889659B1 (en) * | 2005-08-12 | 2007-10-12 | Echosens Sa | IMAGEUR SYSTEM OF A HUMAN OR ANIMAL ORGAN PERMITTING THE MEASUREMENT OF THE ELASTICITY OF SAID ORGAN |
| CN104359972A (en) * | 2014-10-31 | 2015-02-18 | 杨松 | Method and device for detecting physical property of object |
| CN204241422U (en) * | 2014-10-31 | 2015-04-01 | 杨松 | The device of inspected object physical attribute |
-
2014
- 2014-10-31 CN CN201410609279.3A patent/CN104359972A/en active Pending
-
2015
- 2015-07-15 WO PCT/CN2015/084151 patent/WO2016065955A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343310A (en) * | 1999-03-15 | 2002-04-03 | 弹性测量体系弹性推动公司 | Image method and device using shearing waves |
| CN1674827A (en) * | 2002-08-08 | 2005-09-28 | 回波检测公司 | Device and method for measuring the elasticity of a human or animal organ |
| CN101506683A (en) * | 2006-08-22 | 2009-08-12 | 超声成像公司 | Ultrasound imaging probe for imaging a temporary change in an environment |
| CN101699280A (en) * | 2009-10-15 | 2010-04-28 | 北京索瑞特医学技术有限公司 | Method and device for ultrasonic and nondestructive detection ofelasticity of viscoelastic medium |
| CN101912278A (en) * | 2010-08-12 | 2010-12-15 | 陈庆武 | Ultrasound dynamic elastic imaging probe and method |
| CN102151152A (en) * | 2011-03-01 | 2011-08-17 | 深圳市一体医疗科技股份有限公司 | Measurement probe, system and method for measuring elasticity of viscoelastic medium |
| CN104013388A (en) * | 2014-06-13 | 2014-09-03 | 中国医学科学院生物医学工程研究所 | Magneto-acoustic coupling imaging excitation and detection method and device based on low-frequency continuous waves |
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| WO2016065955A1 (en) * | 2014-10-31 | 2016-05-06 | 杨松 | Method and device for detecting physical property of object |
| CN108072872A (en) * | 2016-11-17 | 2018-05-25 | 富士通株式会社 | Information extracting device, article detection apparatus |
| CN107577378A (en) * | 2017-07-31 | 2018-01-12 | 努比亚技术有限公司 | A kind of system control method, terminal and computer-readable recording medium |
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