CN107817295A - A kind of ultrasonic wave detecting system - Google Patents
A kind of ultrasonic wave detecting system Download PDFInfo
- Publication number
- CN107817295A CN107817295A CN201711263593.0A CN201711263593A CN107817295A CN 107817295 A CN107817295 A CN 107817295A CN 201711263593 A CN201711263593 A CN 201711263593A CN 107817295 A CN107817295 A CN 107817295A
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- Prior art keywords
- operational amplifier
- ultrasonic wave
- resistance
- circuit
- detecting system
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
Abstract
The present invention provides a kind of ultrasonic wave detecting system, including microcontroller, Zigbee module, host computer, optocoupler change-over circuit, controllor for step-by-step motor, stepper motor, mechanical actuating unit, ultrasonic wave transceiver circuit, signal amplification circuit, bandwidth-limited circuit, A/D sample circuits, ultrasonic probe.Ultrasonic wave detecting system of the present invention, the ultrasonic wave detecting system being made up of ultrasonic wave transceiver circuit, signal amplification circuit, bandpass filter, system can realize the long-range ultrasonic automatic detection to large-scale workpiece, have the advantages of precision is high, detection efficiency is high, easy to operate.
Description
Technical field
The present invention relates to ultrasonic detection technology field, and in particular to a kind of ultrasonic wave detecting system.
Background technology
Power amplifier is an important component of wireless communication system, where is it radio communication, where just has receipts
Hair machine, as long as and have transceiver, with regard to certain power amplifier (PA).RF/ microwave/millimeter waves power amplifier (PA) is due to tool
There is low pressure, size is small, and the linearity is high, low noise and other advantages, is widely applied to satellite communication, mobile communication, radar and electronics
In war and various industrial equipments.With the development of radio communication and military field new standard new technology, increasingly require to improve RF/
Microwave/millimeter wave PA performance, it is allowed to, more in broadband, there is higher power output, efficiency and reliability.Modern communicationses
Development to bandwidth, linearly, the index such as efficiency proposes higher requirement, corresponding power amplifier research also into following trend and
Focus.With material, the further development of computer, and power amplifier correlation theory, it is anticipated that the more excellent power amplification of index
Device, serve wireless communication field.
Large-scale workpiece is the critical component of advanced equipment manufacturing, is widely used to electric power, ship, metallurgy, petrochemical industry, heavy type
Field, its quality such as machinery and national defence directly influence the integral level and operational reliability of Grand Equipments.To ensure large-scale work
The quality of part and its equipment to the defects of its stomata, crack, field trash, crackle, bubble, it is necessary to detect.Supersonic testing method
Due to detection material species it is more, be easy to that Automated inspection, penetration capacity are strong, accuracy of detection is higher and to the radiationless danger of human body
Evil the advantages that, be it is a kind of be suitable for large-size workpiece, defect detection method at present domestic large-scale workpiece ultrasound detection be mainly profit
With hand-held ultrasonic detector, the mode manually moved is detected, it is desirable to has the reviewers of certain experiences to be grasped
Make and judge testing result, there is that requirement to testing staff is high, detection efficiency is low, easy the problems such as flase drop and missing inspection occurs.
The content of the invention
(1) technical problem solved
The main object of the present invention is that above-mentioned large-scale workpiece artificial ultrasound detection detection efficiency is low, easy misses in order to overcome
Inspection and problem the defects of missing inspection, it is proposed that a kind of ultrasonic wave detecting system, it is electric by ultrasonic wave transceiver circuit, signal amplification
The ultrasonic wave detecting system that road, bandpass filter are formed, system can realize the long-range ultrasonic automatic detection to large-scale workpiece, have
There is the advantages of precision is high, detection efficiency is high, easy to operate.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of ultrasonic wave detecting system, including microcontroller, Zigbee module, host computer, optocoupler change-over circuit, stepping electricity
Machine controller, stepper motor, mechanical actuating unit, ultrasonic wave transceiver circuit, signal amplification circuit, bandwidth-limited circuit,
A/D sample circuits, ultrasonic probe, the microcontroller carry out radio communication by Zigbee module and host computer；Microcontroller
It is connected by optocoupler change-over circuit with controllor for step-by-step motor, controllor for step-by-step motor is connected with stepper motor drives stepping electricity
Machine, mechanical actuating unit are connected with stepper motor, and ultrasonic probe is arranged on mechanical actuating unit；Microcontroller is sent out by ultrasound
Signal is penetrated with ultrasonic wave transceiver circuit with being connected, ultrasonic wave transceiver circuit is launched to ultrasonic probe receives ultrasonic wave,
The reception signal of ultrasonic wave transceiver circuit is amplified by signal amplification circuit, bandwidth-limited circuit is filtered, A/D
Microcontroller is sent into after sampling circuit samples.
Further, limit switches are installed on the mechanical actuating unit, limit switch also with optocoupler change-over circuit phase
Even.
Further, the ultrasonic wave transceiver circuit includes ultrasonic wave transmitter module, the ultrasonic wave transmitter module
Including resistance R1, R2, R3, transistor Q1, Q2 and metal-oxide-semiconductor Q3, transformer TR1, transmitter T1, ultrasonic wave transmission signal passes through electricity
Hinder base stages of the R1 respectively with transistor Q1, Q2 to be connected, transistor Q1 emitter stage is connected with Q2 emitter stage, transistor Q1 collection
Electrode is connected with positive 5V, Q2 grounded collector；Metal-oxide-semiconductor Q3 grid is connected with transistor Q1, Q2 emitter stage respectively, metal-oxide-semiconductor
Q3 drain electrode is connected after transformer TR1 primary sides, resistance R2 with positive 5V to be connected, metal-oxide-semiconductor Q3 source ground；Resistance R3, hair
Emitter T1 is connected in parallel on transformer TR1 secondary both ends respectively.
Further, the transistor Q1 is that NPN type triode 2N3904, the transistor Q2 are PNP type triode
2N3906。
Further, the metal-oxide-semiconductor Q3 is IRFN34.
Further, the ultrasonic wave transceiver circuit includes ultrasonic wave receiving module, the ultrasonic wave receiving module
Including receiver T2, resistance R4, R5, R6, R7, R8, R9, R10, electric capacity C1, C2, operational amplifier U1, U2, receiver T2 and electricity
It is connected after being connected again with resistance R5, electric capacity C1 after resistance R4 parallel connections with operational amplifier U1 inverting input, operational amplifier U1
In-phase input end be grounded by resistance R6, be connected with resistance R7 between operational amplifier U1 inverting input and output end,
Operational amplifier U1 output end is connected after being connected with resistance R8, electric capacity C2 with operational amplifier U2 inverting input, computing
Amplifier U2 in-phase input end is grounded by resistance R9, is connected between operational amplifier U2 inverting input and output end
Resistance R10.
Further, the operational amplifier U1, U2 OP37.
Further, the signal amplification circuit includes resistance R11, R12, electric capacity C3, C4, C5, operational amplifier U3,
U4, the resistance R11 are connected with operational amplifier U3 in-phase input end, and operational amplifier U3 in-phase input end passes through electric capacity
C3 is grounded, and electric capacity C4 is connected between operational amplifier U3 in-phase input end and inverting input, operational amplifier U3's is anti-
Phase input is connected with output end, and operational amplifier U3 output end passes through resistance R12 and operational amplifier U4 homophase input
End is connected, and operational amplifier U4 inverting input is connected with output end, and operational amplifier U4 output end connects by electric capacity C5
Ground.
Further, the bandwidth-limited circuit includes resistance R13, R14, R15, R16, R17, R18, electric capacity C6, C7, fortune
Amplifier U5, U6 are calculated, resistance R13 one end is connected with operational amplifier U5 inverting inputs, the resistance R13 other ends and electric capacity C6 mono-
End is connected, and the resistance R13 other ends are also connected with by resistance R14 with operational amplifier U5 output ends, and operational amplifier U5's is anti-
Electric capacity C7 is connected between phase input and output end, the electric capacity C6 other ends are anti-phase defeated with operational amplifier U6 by resistance R17
Enter end to be connected, operational amplifier U5 in-phase input ends are grounded by resistance R15, and operational amplifier U5 output ends pass through resistance R16
With operational amplifier U6 inverting input phases, operational amplifier U6 in-phase input ends ground connection, operational amplifier U6 inverting inputs
Resistance R18 is connected between output end.
Further, the microcontroller is ARMS3-C2440.
(3) beneficial effect
Beneficial effects of the present invention：A kind of ultrasonic wave detecting system, electricity is amplified by ultrasonic wave transceiver circuit, signal
The ultrasonic wave detecting system that road, bandpass filter are formed, system can realize the long-range ultrasonic automatic detection to large-scale workpiece, have
There is the advantages of precision is high, detection efficiency is high, easy to operate；Ultrasonic wave transmitter module utilizes the push-pull amplifier circuit that triode is formed
Metal-oxide-semiconductor is driven, power amplification is carried out by transformer, circuit structure is simple, driving power is big；Ultrasonic wave receiving module is by OP37
Form two stage amplifer circuit, it is ensured that ultrasonic signal is stablized undistorted；Small-signal is amplified by signal amplification circuit, passes through fortune
The mapping of NE5532 high-speed transitions performance improvement circuits is put, under wider bandwidth, signal is in different degrees of frequency range
It can without distortion export, be greatly enhanced the stability of circuit；Bandwidth-limited circuit is made up of two stage amplifer, can eliminate friendship
Flow the interference caused by electricity.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is detecting system theory diagram of the present invention；
Fig. 2 is ultrasonic wave transmitter module schematic diagram of the present invention；
Fig. 3 is ultrasonic wave receiving module schematic diagram of the present invention；
Fig. 4 is signal amplification circuit schematic diagram of the present invention；
Fig. 5 is bandwidth-limited circuit schematic diagram of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
With reference to Fig. 1, a kind of ultrasonic wave detecting system, including microcontroller, Zigbee module, host computer, optocoupler conversion electricity
Road, controllor for step-by-step motor, stepper motor, mechanical actuating unit, ultrasonic wave transceiver circuit, signal amplification circuit, band logical
Filter circuit, A/D sample circuits, ultrasonic probe.Microcontroller carries out radio communication by Zigbee module and host computer；Micro-control
Device processed is connected by optocoupler change-over circuit with controllor for step-by-step motor, and controllor for step-by-step motor is connected with stepper motor drives stepping
Motor, mechanical actuating unit are connected with stepper motor, and ultrasonic probe is arranged on mechanical actuating unit；Microcontroller passes through ultrasound
For transmission signal with ultrasonic wave transceiver circuit with being connected, ultrasonic wave transceiver circuit is launched to ultrasonic probe receives ultrasound
Ripple, the reception signal of ultrasonic wave transceiver circuit is amplified by signal amplification circuit, bandwidth-limited circuit is filtered,
Microcontroller is sent into after A/D sampling circuit samples.Limit switches are installed, limit switch also turns with optocoupler on mechanical actuating unit
Circuit is changed to be connected.Microcontroller is ARMS3-C2440.
With reference to Fig. 2, ultrasonic wave transceiver circuit includes ultrasonic wave transmitter module, and ultrasonic wave transmitter module includes resistance
R1, R2, R3, transistor Q1, Q2 and metal-oxide-semiconductor Q3, transformer TR1, transmitter T1, ultrasonic wave transmission signal are distinguished by resistance R1
Be connected with transistor Q1, Q2 base stage, transistor Q1 emitter stage is connected with Q2 emitter stage, transistor Q1 colelctor electrode with just
5V is connected, Q2 grounded collector；Metal-oxide-semiconductor Q3 grid is connected with transistor Q1, Q2 emitter stage respectively, metal-oxide-semiconductor Q3 drain electrode
It is connected after transformer TR1 primary sides, resistance R2 with positive 5V and is connected, metal-oxide-semiconductor Q3 source ground；T1 points of resistance R3, transmitter
Transformer TR1 secondary both ends are not connected in parallel on.Transistor Q1 is NPN type triode 2N3904, and transistor Q2 is PNP type triode
2N3906.Metal-oxide-semiconductor Q3 is IRFN34.The push-pull amplifier circuit driving metal-oxide-semiconductor that ultrasonic wave transmitter module is formed using triode, leads to
Cross transformer and carry out power amplification, circuit structure is simple, driving power is big.
With reference to Fig. 3, ultrasonic wave transceiver circuit includes ultrasonic wave receiving module, and ultrasonic wave receiving module includes receiver
T2, resistance R4, R5, R6, R7, R8, R9, R10, electric capacity C1, C2, operational amplifier U1, U2, after receiver T2 is in parallel with resistance R4
It is connected after being connected again with resistance R5, electric capacity C1 with operational amplifier U1 inverting input, operational amplifier U1 homophase input
End is grounded by resistance R6, and resistance R7, operational amplifier are connected between operational amplifier U1 inverting input and output end
U1 output end is connected after being connected with resistance R8, electric capacity C2 with operational amplifier U2 inverting input, operational amplifier U2's
In-phase input end is grounded by resistance R9, and resistance R10 is connected between operational amplifier U2 inverting input and output end.Fortune
Calculation amplifier U1, U2 OP37, OP37 have low maladjustment voltage and drift characteristic, and speed is higher, noise is lower.Ultrasonic wave
Receiving module forms two stage amplifer circuit by OP37, it is ensured that ultrasonic signal is stablized undistorted.
With reference to Fig. 4, signal amplification circuit includes resistance R11, R12, electric capacity C3, C4, C5, operational amplifier U3, U4, resistance
R11 is connected with operational amplifier U3 in-phase input end, and operational amplifier U3 in-phase input end is grounded by electric capacity C3, computing
Be connected with electric capacity C4 between amplifier U3 in-phase input end and inverting input, operational amplifier U3 inverting input with it is defeated
Go out end to be connected, operational amplifier U3 output end is connected by resistance R12 with operational amplifier U4 in-phase input end, and computing is put
Big device U4 inverting input is connected with output end, and operational amplifier U4 output end is grounded by electric capacity C5.Operational amplifier
U3, U4 use amplifier NE5532.Signal amplification circuit precision is high, noise is low, impedance is high, bandwidth, can carry out small-signal
Amplification, by the mapping of amplifier NE5532 high-speed transitions performance improvement circuits, under wider bandwidth, signal is in different journeys
The frequency range of degree can also export without distortion, be greatly enhanced the stability of circuit.
With reference to Fig. 5, bandwidth-limited circuit includes resistance R13, R14, R15, R16, R17, R18, electric capacity C6, C7, and computing is put
Big device U5, U6, resistance R13 one end are connected with operational amplifier U5 inverting inputs, the resistance R13 other ends and electric capacity C6 one end phase
Even, the resistance R13 other ends are also connected with by resistance R14 with operational amplifier U5 output ends, and operational amplifier U5's is anti-phase defeated
Enter and be connected with electric capacity C7 between end and output end, the electric capacity C6 other ends pass through resistance R17 and operational amplifier U6 inverting inputs
It is connected, operational amplifier U5 in-phase input ends are grounded by resistance R15, and operational amplifier U5 output ends pass through resistance R16 and fortune
Calculate amplifier U6 inverting input phases, operational amplifier U6 in-phase input ends ground connection, operational amplifier U6 inverting inputs with it is defeated
Go out between holding and be connected with resistance R18.Bandpass filter is made up of two stage amplifer, filters out the interference of high-frequency signal, can eliminate friendship
Flow the interference caused by electricity.
In summary, ultrasonic wave detecting system of the present invention, by ultrasonic wave transceiver circuit, signal amplification circuit, band logical
The ultrasonic wave detecting system that wave filter is formed, system can realize the long-range ultrasonic automatic detection to large-scale workpiece, have precision
High, the advantages of detection efficiency is high, easy to operate；The push-pull amplifier circuit driving that ultrasonic wave transmitter module is formed using triode
Metal-oxide-semiconductor, power amplification is carried out by transformer, circuit structure is simple, driving power is big；Ultrasonic wave receiving module is made up of OP37
Two stage amplifer circuit, it is ensured that ultrasonic signal is stablized undistorted；Small-signal is amplified by signal amplification circuit, passes through amplifier
The mapping of NE5532 high-speed transitions performance improvement circuits, under wider bandwidth, signal also may be used in different degrees of frequency range
To export without distortion, the stability of circuit is greatly enhanced；Bandwidth-limited circuit is made up of two stage amplifer, can eliminate exchange
Interference caused by electricity.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
- A kind of 1. ultrasonic wave detecting system, it is characterised in that：Including microcontroller, Zigbee module, host computer, optocoupler conversion electricity Road, controllor for step-by-step motor, stepper motor, mechanical actuating unit, ultrasonic wave transceiver circuit, signal amplification circuit, band logical Filter circuit, A/D sample circuits, ultrasonic probe, the microcontroller carry out radio communication by Zigbee module and host computer； Microcontroller is connected by optocoupler change-over circuit with controllor for step-by-step motor, and controllor for step-by-step motor is connected driving with stepper motor Stepper motor, mechanical actuating unit are connected with stepper motor, and ultrasonic probe is arranged on mechanical actuating unit；Microcontroller passes through With ultrasonic wave transceiver circuit with being connected, ultrasonic wave transceiver circuit receives super ultrasound emission signal to ultrasonic probe transmitting Sound wave, the reception signal of ultrasonic wave transceiver circuit is amplified by signal amplification circuit, bandwidth-limited circuit is filtered Microcontroller is sent into after ripple, A/D sampling circuit samples.
- 2. a kind of ultrasonic wave detecting system as claimed in claim 1, it is characterised in that be provided with the mechanical actuating unit Limit switch, limit switch are also connected with optocoupler change-over circuit.
- A kind of 3. ultrasonic wave detecting system as claimed in claim 1, it is characterised in that the ultrasonic wave transceiver circuit bag Ultrasonic wave transmitter module is included, the ultrasonic wave transmitter module includes resistance R1, R2, R3, transistor Q1, Q2 and metal-oxide-semiconductor Q3, transformation Device TR1, transmitter T1, ultrasonic wave transmission signal are connected by base stages of the resistance R1 respectively with transistor Q1, Q2, transistor Q1's Emitter stage is connected with Q2 emitter stage, and transistor Q1 colelctor electrode is connected with positive 5V, Q2 grounded collector；Metal-oxide-semiconductor Q3 grid Pole is connected with transistor Q1, Q2 emitter stage respectively, metal-oxide-semiconductor Q3 drain electrode after transformer TR1 primary sides, resistance R2 with positive 5V phases Even it is connected, metal-oxide-semiconductor Q3 source ground；Resistance R3, transmitter T1 are connected in parallel on transformer TR1 secondary both ends respectively.
- 4. a kind of ultrasonic wave detecting system as claimed in claim 3, it is characterised in that the transistor Q1 is the pole of NPN type three Pipe 2N3904, the transistor Q2 are PNP type triode 2N3906.
- 5. a kind of ultrasonic wave detecting system as claimed in claim 3, it is characterised in that the metal-oxide-semiconductor Q3 is IRFN34.
- A kind of 6. ultrasonic wave detecting system as claimed in claim 1, it is characterised in that the ultrasonic wave transceiver circuit bag Ultrasonic wave receiving module is included, the ultrasonic wave receiving module includes receiver T2, resistance R4, R5, R6, R7, R8, R9, R10, electricity Hold C1, C2, operational amplifier U1, U2, receiver T2 after being connected again with resistance R5, electric capacity C1 after resistance R4 parallel connections with putting with computing Big device U1 inverting input is connected, and operational amplifier U1 in-phase input end is grounded by resistance R6, operational amplifier U1's Resistance R7 is connected between inverting input and output end, after operational amplifier U1 output end is connected with resistance R8, electric capacity C2 It is connected with operational amplifier U2 inverting input, operational amplifier U2 in-phase input end is grounded by resistance R9, and computing is put Resistance R10 is connected between big device U2 inverting input and output end.
- 7. a kind of ultrasonic wave detecting system as claimed in claim 6, it is characterised in that described operational amplifier U1, U2 are OP37。
- 8. a kind of ultrasonic wave detecting system as claimed in claim 1, it is characterised in that the signal amplification circuit includes resistance R11, R12, electric capacity C3, C4, C5, operational amplifier U3, U4, the resistance R11 and operational amplifier U3 in-phase input end phase Even, operational amplifier U3 in-phase input end is grounded by electric capacity C3, operational amplifier U3 in-phase input end and anti-phase input Electric capacity C4 is connected between end, operational amplifier U3 inverting input is connected with output end, operational amplifier U3 output end It is connected by resistance R12 with operational amplifier U4 in-phase input end, operational amplifier U4 inverting input and output end phase Even, operational amplifier U4 output end is grounded by electric capacity C5.
- 9. a kind of ultrasonic wave detecting system as claimed in claim 1, it is characterised in that the bandwidth-limited circuit includes resistance R13, R14, R15, R16, R17, R18, electric capacity C6, C7, operational amplifier U5, U6, resistance R13 one end and operational amplifier U5 are anti- Phase input is connected, and the resistance R13 other ends are connected with electric capacity C6 one end, and the resistance R13 other ends are also with passing through resistance R14 and computing Amplifier U5 output ends are connected, and electric capacity C7 is connected between operational amplifier U5 inverting input and output end, and electric capacity C6 is another One end is connected by resistance R17 with operational amplifier U6 inverting inputs, and operational amplifier U5 in-phase input ends pass through resistance R15 Ground connection, operational amplifier U5 output ends pass through resistance R16 and operational amplifier U6 inverting input phases, the same phases of operational amplifier U6 Input end grounding, resistance R18 is connected between operational amplifier U6 inverting inputs and output end.
- 10. a kind of ultrasonic wave detecting system as claimed in claim 1, it is characterised in that the microcontroller is ARMS3- C2440。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263593.0A CN107817295A (en) | 2017-12-05 | 2017-12-05 | A kind of ultrasonic wave detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263593.0A CN107817295A (en) | 2017-12-05 | 2017-12-05 | A kind of ultrasonic wave detecting system |
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| CN107817295A true CN107817295A (en) | 2018-03-20 |
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| CN201711263593.0A Pending CN107817295A (en) | 2017-12-05 | 2017-12-05 | A kind of ultrasonic wave detecting system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188427A (en) * | 2018-08-17 | 2019-01-11 | 山东中安科技股份有限公司 | A kind of road radar vehicle inspection system and car test method |
| CN109557179A (en) * | 2018-11-27 | 2019-04-02 | 中国矿业大学 | Main shaft of hoister crackle on-line monitoring system and its working method |
| CN110037736A (en) * | 2019-04-08 | 2019-07-23 | 深圳市贝斯曼精密仪器有限公司 | A kind of ultrasonic listening circuit with analog-digital conversion function |
| CN110192896A (en) * | 2019-04-08 | 2019-09-03 | 深圳市贝斯曼精密仪器有限公司 | A kind of bimodulus blood flow detecting device |
| CN114326785A (en) * | 2021-11-30 | 2022-04-12 | 国网河南省电力公司荥阳市供电公司 | Unmanned aerial vehicle transformer substation flight detection system |
-
2017
- 2017-12-05 CN CN201711263593.0A patent/CN107817295A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188427A (en) * | 2018-08-17 | 2019-01-11 | 山东中安科技股份有限公司 | A kind of road radar vehicle inspection system and car test method |
| CN109557179A (en) * | 2018-11-27 | 2019-04-02 | 中国矿业大学 | Main shaft of hoister crackle on-line monitoring system and its working method |
| CN110037736A (en) * | 2019-04-08 | 2019-07-23 | 深圳市贝斯曼精密仪器有限公司 | A kind of ultrasonic listening circuit with analog-digital conversion function |
| CN110192896A (en) * | 2019-04-08 | 2019-09-03 | 深圳市贝斯曼精密仪器有限公司 | A kind of bimodulus blood flow detecting device |
| CN110037736B (en) * | 2019-04-08 | 2023-11-17 | 深圳市贝斯曼精密仪器有限公司 | Ultrasonic detection circuit with analog-to-digital conversion function |
| CN110192896B (en) * | 2019-04-08 | 2024-02-20 | 深圳市贝斯曼精密仪器有限公司 | Dual-mode blood flow detection device |
| CN114326785A (en) * | 2021-11-30 | 2022-04-12 | 国网河南省电力公司荥阳市供电公司 | Unmanned aerial vehicle transformer substation flight detection system |
| CN114326785B (en) * | 2021-11-30 | 2024-02-27 | 国网河南省电力公司荥阳市供电公司 | Unmanned aerial vehicle transformer substation flight detecting system |
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