CN104390695A - Ultrasonic measuring system - Google Patents
Ultrasonic measuring system Download PDFInfo
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- CN104390695A CN104390695A CN201410677626.6A CN201410677626A CN104390695A CN 104390695 A CN104390695 A CN 104390695A CN 201410677626 A CN201410677626 A CN 201410677626A CN 104390695 A CN104390695 A CN 104390695A
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- signal
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- measurement system
- ultrasonic measurement
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to the field of ultrasonic waves, and discloses an ultrasonic measuring system which comprises a signal detection module and a signal processing module. The signal processing module performs amplification, attenuation and frequency screening for an ultrasonic single detected by the signal detection module to obtain an ultrasonic signal analog quantity, and the ultrasonic signal analog quantity is processed through A/D (analog to digital) conversion to finish ultrasonic measuring. The ultrasonic measuring system can perform spectrum occupancy measurement and analysis for high-frequency noise sources, the ultrasonic waves exceeding a human ear hearing range are accurately and rapidly measured according to potential hazards of the ultrasonic waves with different frequencies and different sound intensities to human bodies, measuring information is processed and analyzed through a microprocessor, and corresponding ultrasonic standards in different noise frequency domains are provided.
Description
Technical field
The present invention relates to disconnector field, particularly relate to a kind of ultrasonic measurement system.
Background technology
In noise testing and standardization, mainly carry out spectrum analysis and measurement for the acoustic pressure in human body sense of hearing 20Hz ~ 20000Hz frequency range, and have ignored hyperacoustic harm of high-power, the high strength exceeding human body audibility range, therefore need to research and develop a kind of ultrasonic measurement system, accurately, the ultrasound wave exceeding human auditory system scope is measured easily, and by microprocessor processes analysis to measure information, seem especially important and urgent.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the invention is: a kind of ultrasonic measurement system is provided, accurately, measuring the ultrasound wave exceeding human auditory system scope easily, and by microprocessor processes analysis to measure information.
In order to solve the technical matters in background technology, the invention provides a kind of ultrasonic measurement system, comprise signal detection module and signal processing module, the ultrasonic signal that signal detection module detects by described signal processing module carries out amplifying, decay, frequency screening obtains ultrasonic signal analog quantity, and described ultrasonic signal analog quantity is completed ultrasonic measurement by A/D conversion process.
Preferably, ultrasonic measurement system also comprises the controller for control survey frequency domain and measuring voltage level threshold value.
Particularly, ultrasonic measurement system also comprises display module, and described display module comprises display circuit and display screen, and the ultrasound wave numerical value that described signal processing module process obtains is shown on a display screen by display circuit by described display module.
Particularly, described signal detection module comprises the condenser microphone device for acoustical signal being converted to electric signal.
Alternatively, described signal processing module comprise prime amplifier, receive the signal attenuator of amplifying signal, the frequency selection network for frequency division, the wave detector for frequency screening, for changing the A/D converter of geophone output signal and the microprocessor for computing analog-digital conversion result.
Particularly, the input capacitance of described prime amplifier is less than 3pF.
The principle of ultrasonic measurement system of the present invention carries out impedance matching by prime amplifier after detecting high-frequency signal by microphone, recycling signal attenuator and frequency selection network improve the measurement range of signal and screen signal frequency, by rms detector and A/D converter, AC signal is converted to digital data transmission to microprocessor, finally obtains measurement result by display circuit.
Adopt technique scheme, ultrasonic measurement system of the present invention can be measured the ultrasound wave that exceeds human auditory system scope accurately, easily and in display screen, obtain the average power level of selected high frequency noise frequency band.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the ultrasonic measurement system that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
The structural representation of the ultrasonic measurement system that embodiment: Fig. 1 provides for the embodiment of the present invention, the ultrasonic measurement system that the present embodiment provides comprises signal detection module and signal processing module, the ultrasonic signal that signal detection module detects by described signal processing module carries out amplifying, decay, frequency screening obtains ultrasonic signal analog quantity, and described ultrasonic signal analog quantity is completed ultrasonic measurement by A/D conversion process.
Preferably, ultrasonic measurement system also comprises the controller for control survey frequency domain and measuring voltage level threshold value.
Particularly, ultrasonic measurement system also comprises display module, and described display module comprises display circuit and display screen, and the ultrasound wave numerical value that described signal processing module process obtains is shown on a display screen by display circuit by described display module.
Particularly, described signal detection module comprises the condenser microphone device for acoustical signal being converted to electric signal.
Alternatively, described signal processing module comprise prime amplifier, receive the signal attenuator of amplifying signal, the frequency selection network for frequency division, the wave detector for frequency screening, for changing the A/D converter of geophone output signal and the microprocessor for computing analog-digital conversion result.
Particularly, the input capacitance of described prime amplifier is 2pF.
Ultrasonic measurement system of the present invention is measured accurately, easily and is exceeded the ultrasound wave of human auditory system scope, and in display screen, obtains the average power level of selected high frequency noise frequency band by microprocessor processes analysis to measure information.
Above disclosedly be only several preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (6)
1. a ultrasonic measurement system, it is characterized in that, comprise signal detection module and signal processing module, the ultrasonic signal that signal detection module detects by described signal processing module carries out amplifying, decay, frequency screening obtains ultrasonic signal analog quantity, and described ultrasonic signal analog quantity is completed ultrasonic measurement by A/D conversion process.
2. ultrasonic measurement system as claimed in claim 1, is characterized in that, also comprise the controller for control survey frequency domain and measuring voltage level threshold value.
3. ultrasonic measurement system as claimed in claim 1, it is characterized in that, also comprise display module, described display module comprises display circuit and display screen, and the ultrasound wave numerical value that described signal processing module process obtains is shown on a display screen by display circuit by described display module.
4. ultrasonic measurement system as claimed in claim 1, it is characterized in that, described signal detection module comprises the condenser microphone device for acoustical signal being converted to electric signal.
5. as the ultrasonic measurement system in claim 1-4 as described in any one, it is characterized in that, described signal processing module comprises prime amplifier, receives the signal attenuator of amplifying signal, the frequency selection network for frequency division, the wave detector for frequency screening, for changing the A/D converter of geophone output signal and the microprocessor for computing analog-digital conversion result.
6. ultrasonic measurement system as claimed in claim 5, it is characterized in that, the input capacitance of described prime amplifier is less than 3pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677626.6A CN104390695A (en) | 2014-11-21 | 2014-11-21 | Ultrasonic measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677626.6A CN104390695A (en) | 2014-11-21 | 2014-11-21 | Ultrasonic measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390695A true CN104390695A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410677626.6A Pending CN104390695A (en) | 2014-11-21 | 2014-11-21 | Ultrasonic measuring system |
Country Status (1)
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| CN (1) | CN104390695A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675324A (en) * | 2016-01-20 | 2016-06-15 | 南京熊猫电子股份有限公司 | Device for detecting performance of inverter welding machine via supersonic waves |
| CN106954621A (en) * | 2017-03-21 | 2017-07-18 | 辽宁机电职业技术学院 | A kind of supersonic wave bird driving device detector and detection method |
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| US20070180913A1 (en) * | 2004-04-27 | 2007-08-09 | Tao Corporation | Resonance frequency determining method, resonance frequency selecting method, and resonance frequency determining apparatus |
| CN201060049Y (en) * | 2007-05-29 | 2008-05-14 | 东莞泉声电子有限公司 | Tester of digital sound-electric transducer |
| CN201903648U (en) * | 2010-12-17 | 2011-07-20 | 天津水运工程勘察设计院 | Ultrasonic detector |
| CN203519153U (en) * | 2013-09-29 | 2014-04-02 | 杭州电子科技大学 | Supersonic wave sound intensity detection circuit |
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2014
- 2014-11-21 CN CN201410677626.6A patent/CN104390695A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070180913A1 (en) * | 2004-04-27 | 2007-08-09 | Tao Corporation | Resonance frequency determining method, resonance frequency selecting method, and resonance frequency determining apparatus |
| CN201060049Y (en) * | 2007-05-29 | 2008-05-14 | 东莞泉声电子有限公司 | Tester of digital sound-electric transducer |
| CN201903648U (en) * | 2010-12-17 | 2011-07-20 | 天津水运工程勘察设计院 | Ultrasonic detector |
| CN203519153U (en) * | 2013-09-29 | 2014-04-02 | 杭州电子科技大学 | Supersonic wave sound intensity detection circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675324A (en) * | 2016-01-20 | 2016-06-15 | 南京熊猫电子股份有限公司 | Device for detecting performance of inverter welding machine via supersonic waves |
| CN106954621A (en) * | 2017-03-21 | 2017-07-18 | 辽宁机电职业技术学院 | A kind of supersonic wave bird driving device detector and detection method |
| CN106954621B (en) * | 2017-03-21 | 2020-07-28 | 辽宁机电职业技术学院 | Ultrasonic bird repeller detector and detection method |
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Application publication date: 20150304 |
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