CN216900918U - Special probe for measuring output signal of hydrophone - Google Patents
Special probe for measuring output signal of hydrophone Download PDFInfo
- Publication number
- CN216900918U CN216900918U CN202121464127.0U CN202121464127U CN216900918U CN 216900918 U CN216900918 U CN 216900918U CN 202121464127 U CN202121464127 U CN 202121464127U CN 216900918 U CN216900918 U CN 216900918U
- Authority
- CN
- China
- Prior art keywords
- hydrophone
- signal
- probe
- impedance matching
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The utility model relates to the technical field of hydrophone output signal measurement, and discloses a special probe for measuring hydrophone output signals, which comprises an enhanced probe body, a probe cable and a probe connector; a hydrophone signal conditioning module and a power supply module are packaged in the enhanced probe body. The hydrophone signal conditioning module mainly comprises an impedance matching circuit and a signal amplifying circuit. The impedance matching circuit designs the input impedance of the circuit according to the equivalent capacitance and the signal frequency of the hydrophone to realize the matching with the output impedance of the hydrophone; the signal amplification circuit adopts the in-phase input amplification circuit to amplify the output signal of the hydrophone, and adopts a low-noise and high-precision integrated operational amplifier to realize the low equivalent self-noise design at the time of high input impedance. And the power supply module is used for supplying power to the hydrophone signal conditioning module. The utility model can carry out impedance matching and amplification on weak hydrophone output signals, effectively transmit the signals to the oscilloscope and present high-quality waveforms for observation, thereby facilitating debugging personnel to simply and efficiently judge the performance of the hydrophone.
Description
Technical Field
The utility model relates to the technical field of hydrophone output signal measurement, in particular to a special probe for measuring hydrophone output signals.
Background
The acoustic array is an important component of sonar equipment, mainly comprises a plurality of hydrophone/acquisition module groups, and in order to ensure the quality reliability of the sonar equipment, an oscilloscope is required to measure signals of the hydrophone/acquisition module groups, and when the measured signals of the hydrophone/acquisition module groups are abnormal, fault components in the hydrophone/acquisition module groups need to be checked and replaced. Because the output signal of the hydrophone in the acoustic array is weak, a common probe is connected with an oscilloscope for signal acquisition and observation, and the oscilloscope cannot present a high-quality signal waveform for debugging personnel to judge the performance of the hydrophone, the existing fault part inspection method mainly adopts two indirect methods, namely, directly removing the hydrophone or an acquisition module, sending the hydrophone or the acquisition module to a laboratory for performance parameter measurement by special experimenters, and judging the fault part according to the comparison result of the measured performance parameters and design parameters. The other is that the hydrophone is directly disassembled and assembled and replaced in the production field, the debugging personnel measures the signals of a new hydrophone/acquisition module group again, and if the measured signals are still abnormal, the acquisition module is judged to be a fault element; the two indirect elimination methods have the disadvantages of complicated operation process, low elimination efficiency, time consumption, labor consumption and labor consumption.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a special probe for measuring the output signal of a hydrophone.
The object of the present invention is achieved by the following technical means. A special probe for measuring hydrophone signals comprises an enhanced probe body, a probe cable and a probe connector; a hydrophone signal conditioning module and a power supply module are packaged in the enhanced probe body. The hydrophone signal conditioning module mainly comprises an impedance matching circuit and a signal amplifying circuit. The impedance matching circuit designs the input impedance of the circuit according to the equivalent capacitance and the signal frequency of the hydrophone to realize the matching with the output impedance of the hydrophone; the signal amplification circuit adopts the in-phase input amplification circuit to amplify the output signal of the hydrophone, and adopts a low-noise and high-precision integrated operational amplifier to realize the low equivalent self-noise design at the time of high input impedance. And the power supply module is used for supplying power to the hydrophone signal conditioning module.
The impedance matching circuit is provided with an input end and an output end, the input end is connected with the probe, weak output signals generated by the hydrophone are received, and the output end outputs the signals after impedance matching to the input end of the signal amplification circuit through impedance matching.
The signal amplification circuit is provided with an input end and an output end, the input end is connected with the output end of the impedance matching circuit and used for receiving signals after impedance matching, the amplified signals in the range of the observation amplitude can be easily collected by the oscilloscope under the action of the in-phase input amplification circuit and the low-noise and high-precision operational amplifier, the output end is connected with the probe cable, and the signals are transmitted to the oscilloscope by the probe cable through the probe connector.
The power supply module is a battery, and the positive electrode and the negative electrode of the battery are respectively connected with the input end of the impedance matching circuit and the output end of the signal amplification circuit to supply power so as to drive the whole hydrophone signal conditioning module to work.
The utility model has the beneficial effects that: the utility model can carry out impedance matching and amplification on weak hydrophone output signals, effectively transmit the signals to the oscilloscope and present high-quality waveforms for observation, thereby facilitating debugging personnel to simply and efficiently judge the performance of the hydrophone.
Drawings
FIG. 1 is a schematic block diagram of a probe dedicated for measuring hydrophone signals according to the present invention.
Detailed Description
The utility model will be described in detail below with reference to the following drawings:
example (b): as shown in fig. 1, a special probe for measuring hydrophone signals comprises an enhanced probe body 100, a probe cable 200 and a probe connector 300; a hydrophone signal conditioning module 110 and a power supply module 120 are enclosed within the enhanced probe body 100. The hydrophone signal conditioning module 110 mainly includes an impedance matching circuit 111 and a signal amplifying circuit 112. The impedance matching circuit realizes impedance matching with the hydrophone through the design of input impedance; the signal amplification circuit adopts the in-phase input amplification circuit to amplify the output signal of the hydrophone, and adopts the low-noise operational amplifier to realize the low equivalent self-noise design at the time of high input impedance. And the power supply module is used for supplying power to the hydrophone signal conditioning module.
The impedance matching circuit is provided with an input end 113 and an output end 114, the input end 113 is provided with a probe 117, weak output signals generated by the hydrophone are received, and the output end outputs the signals after impedance matching to the input end of the signal amplification circuit through impedance matching.
The signal amplification circuit is provided with an input end 115 and an output end 116, the input end 115 is connected with the output end 114 of the impedance matching circuit, receives signals after impedance matching, generates amplified signals which are easy to collect in an observation amplitude range of the oscilloscope under the action of the in-phase input amplification circuit and the low-noise operational amplifier, the output end 116 is connected with the probe cable 200, and the signals are transmitted to the oscilloscope through the probe connector 300 by the probe cable.
The power supply module 120 is a battery and drives the entire hydrophone signal conditioning module 110 to work.
It should be understood that equivalent alterations and modifications of the technical solution and the inventive concept of the present invention by those skilled in the art should fall within the scope of the appended claims.
Claims (3)
1. A special probe for measuring output signals of hydrophones is characterized in that: the device comprises an enhanced probe body, a probe cable and a probe connector; a hydrophone signal conditioning module and a power supply module are packaged in the enhanced probe body, and the hydrophone signal conditioning module mainly comprises an impedance matching circuit and a signal amplifying circuit; the impedance matching circuit is used for designing the input impedance of the circuit according to the equivalent capacitance and the signal frequency of the hydrophone so as to realize the matching with the output impedance of the hydrophone; the impedance matching circuit is provided with an input end and an output end, the input end is connected with the probe, receives a weak output signal generated by the hydrophone, and outputs the signal after impedance matching to the input end of the signal amplifying circuit from the output end through impedance matching; the signal amplification circuit adopts a same-phase input amplification circuit to amplify the output signal of the hydrophone, and adopts a low-noise and high-precision integrated operational amplifier to realize the low equivalent self-noise design at the time of high input impedance; and the power supply module is used for supplying power to the hydrophone signal conditioning module.
2. The special probe for measuring the output signals of the hydrophones as claimed in claim 1, wherein: the signal amplification circuit is provided with an input end and an output end, the input end is connected with the output end of the impedance matching circuit and used for receiving signals after impedance matching, the amplified signals in the range of the observation amplitude which is easy to collect by the oscilloscope are generated through the action of the in-phase input amplification circuit and the low-noise operational amplifier, the output end is connected with the probe cable, and the signals are transmitted to the oscilloscope through the probe connector by the probe cable.
3. The special probe for measuring the output signals of the hydrophones as claimed in claim 1, wherein: the power supply module is a battery, and the positive electrode and the negative electrode of the battery are respectively connected with the input end of the impedance matching circuit and the output end of the signal amplification circuit to supply power so as to drive the whole hydrophone signal conditioning module to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464127.0U CN216900918U (en) | 2021-06-29 | 2021-06-29 | Special probe for measuring output signal of hydrophone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464127.0U CN216900918U (en) | 2021-06-29 | 2021-06-29 | Special probe for measuring output signal of hydrophone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216900918U true CN216900918U (en) | 2022-07-05 |
Family
ID=82179669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121464127.0U Active CN216900918U (en) | 2021-06-29 | 2021-06-29 | Special probe for measuring output signal of hydrophone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216900918U (en) |
-
2021
- 2021-06-29 CN CN202121464127.0U patent/CN216900918U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101335573B (en) | Wideband adaptive matching method and apparatus for submarine sound signal transmitter | |
| CN205037931U (en) | High accuracy ultrasonic wave gas flowmeter | |
| CN104180748A (en) | Detecting circuit of displacement sensor | |
| CN103439411B (en) | Multispan hole ultrasonic wave detecting system and detection method thereof | |
| CN106226660A (en) | The metering device of contact ultrasonic Partial discharge detector | |
| CN110865124B (en) | Nonlinear ultrasonic guided wave detection system and method based on linear power amplifier | |
| CN216900918U (en) | Special probe for measuring output signal of hydrophone | |
| CN211505333U (en) | Nonlinear ultrasonic guided wave detection device | |
| CN207908626U (en) | A kind of simulation high frequency Partial discharge signal generating means | |
| CN203658525U (en) | Device for performing electrified detection and diagnosing power equipment defects | |
| CN203705400U (en) | Grounding grid corrosion detection system | |
| CN107389117B (en) | Testing device and method for high-frequency low-voltage ultrasonic sensor | |
| CN201322741Y (en) | System using ultrasonic wave to reconstruct three-dimensional defective shape in column structure | |
| CN203630292U (en) | Rapid supersonic wave detection probe | |
| CN113758996A (en) | Flange bolt looseness detection method and detection device based on frequency mixing nonlinear ultrasound | |
| CN204142685U (en) | A kind of insulator damage check instrument | |
| CN209541775U (en) | It is a kind of for detecting the Vltrasonic device of liquid multi-parameter | |
| CN217083794U (en) | Program-controlled linear array acoustic array sensitivity testing system | |
| CN203432945U (en) | Multispan-hole ultrasonic detecting system | |
| CN205594117U (en) | Multifunctional electric cable detection device | |
| CN210016636U (en) | Loudspeaker abnormal sound test system | |
| CN202654158U (en) | Digital pulse-type ultrasonic transmitting device used for fetal monitor | |
| CN206161595U (en) | Detect insulator internal defect's ultrasonic device | |
| CN218727729U (en) | Ultrasonic transducer performance testing device | |
| CN201397317Y (en) | Alternate collecting circuit for high-speed data collecting system in ultrasonic detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |