CN216116350U - Hydrophone parameter measuring device - Google Patents
Hydrophone parameter measuring device Download PDFInfo
- Publication number
- CN216116350U CN216116350U CN202122277218.XU CN202122277218U CN216116350U CN 216116350 U CN216116350 U CN 216116350U CN 202122277218 U CN202122277218 U CN 202122277218U CN 216116350 U CN216116350 U CN 216116350U
- Authority
- CN
- China
- Prior art keywords
- hydrophone
- signal
- signal processing
- module
- digital display
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to a hydrophone parameter measuring device, which solves the technical problems that the prior hydrophone is not suitable for the production link of unpackaged semi-finished products and is not suitable for the field batch use link without test conditions by carrying out accurate measurement and calibration on the whole parameters of the hydrophone in the presence of water in a laboratory environment, and comprises a measuring box, a signal test line, a sound field cabin body, a signal generating module, a signal processing module and a digital display module, wherein the measuring box comprises a box cover, a box cover and a base; the signal generating module and the signal processing module are respectively connected with the interior of the box shell, and the digital display module is connected with the box cover; the output end of the signal generation module is electrically connected with the low-frequency loudspeaker, the signal output end of the standard hydrophone is electrically connected with the signal processing module, and the digital display module is electrically connected with the signal processing module.
Description
Technical Field
The utility model relates to the technical field of hydrophones, in particular to a hydrophone parameter measuring device.
Background
The hydrophone, as a product capable of converting a water pressure signal into an electric signal, has been widely applied to industrial production, and particularly has been applied and popularized in the exploration and application of marine oil and gas resources. Since the hydrophones are always used in batches during application, the consistency and stability of parameters among individuals are very important, and therefore hydrophone manufacturers or purchasing units need to measure part of key parameters of the hydrophones to determine whether the accuracy and consistency of the parameters meet requirements.
At present, the hydrophone can be accurately measured and calibrated in the water environment in a laboratory environment, but the measuring method is not suitable for the production link of unpackaged semi-finished products and the field batch use link without testing conditions.
Disclosure of Invention
The utility model aims to solve the technical problems that the accurate measurement and calibration of the whole parameters of the existing hydrophone in the water environment in the laboratory environment are not suitable for the production link of unpackaged semi-finished products and the field batch use link without test conditions, and provides a hydrophone parameter measuring device which can still realize the rapid measurement of the key parameters of the hydrophone in the non-water environment without the support of other auxiliary equipment.
The utility model provides a hydrophone parameter measuring device, which comprises a measuring box, a signal testing line, a sound field cabin, a signal generating module, a signal processing module and a digital display module, wherein the signal testing line is arranged on the measuring box;
the measuring box comprises a box cover, a box shell and a base, the base comprises a cylindrical part and a top part which are connected together, the top part is provided with a plurality of sound transmission holes, and the standard hydrophone is fixedly connected with the inner side of the top part of the base;
the cylindrical part of the base is fixedly connected with the box cover;
the low-frequency loudspeaker is connected with the inner side of the box cover and emits sound towards the base; the standard hydrophone is positioned above the low-frequency loudspeaker;
the sound field cabin body is cylindrical, and the inner wall of the sound field cabin body is connected with a layer of sound-absorbing cotton; the lower end opening of the sound field cabin body is sleeved on the cylindrical part of the base;
the signal generating module and the signal processing module are respectively connected with the interior of the box shell, and the digital display module is connected with the box cover;
the output end of the signal generation module is electrically connected with the low-frequency loudspeaker, the signal output end of the standard hydrophone is electrically connected with the signal processing module, and the digital display module is electrically connected with the signal processing module.
Preferably, the length of the sound field cabin is 400-600 mm.
Preferably, the thickness of the sound-absorbing cotton is 5 mm.
The utility model has the beneficial effects that: no matter in indoor or open field, all do not receive the influence of environment, provide a stable fixed frequency sound field through low frequency loudspeaker and acoustic field cabin body and stimulate the hydrophone output signal of being surveyed, do not need to have the water to measure strictly. The sound field environment is not only very suitable for construction units in field environment, but also very suitable for production units in the assembly links of raw materials and semi-finished products, so that the risk of soaking of the assembly parts in the semi-finished product state is avoided. Besides the signal test wire and the sound field cabin, other parts are convenient to carry, transport and use in the rectangular measurement main body, and the device is very suitable for rapid parameter measurement under temporary or batch conditions.
The rapid measuring device can measure the sensitivity parameters of the hydrophone, can also measure the resistance value without the assistance of other instruments, and can complete the measurement of two parameters at one station, thereby reducing the number of measuring personnel and reducing the labor intensity. On one hand, the power supply of the digital display resistance meter is selected, meanwhile, the lead wire of the hydrophone to be measured is selected to be communicated with the digital display resistance meter, and at the moment, the resistance value of the hydrophone to be measured is measured by the rapid measuring device and displayed on the digital display resistance meter; on the other hand, the logarithmic display voltage meter, the signal generating circuit board and the signal processing circuit board are selected to supply power, meanwhile, the lead of the hydrophone to be measured is selected to be communicated with the signal processing circuit board, the signal generating circuit board excites the low-frequency loudspeaker to produce sound, the signal processing circuit board calculates the ratio of the standard hydrophone to the hydrophone to be measured and outputs a voltage value to the digital display voltage meter, the digital display voltage meter displays the sensitivity value of the hydrophone to be measured, the bicolor LED lamp can emit the positive polarity and the negative polarity of the hydrophone to be measured through green light or red light, and meanwhile, the displayed sensitivity value can be conveniently adjusted through adjusting the gain adjusting knob.
Through carrying out relevant parameter setting to the signal generating circuit board, can encourage the low frequency loudspeaker to send 150 ~ 200Hz lasting sound, sound wavelength length is about 43 ~ 58cm, and the sound field cabin body length of pasting the sound absorption cotton is about 400 ~ 600mm, just in time is 1/4 of sound wavelength, and when the hydrophone that awaits measuring is put into the sound field cabin body bottom position, the sound field energy is the strongest here, and the sensitivity numerical value of measurement is accurate and stable.
Drawings
FIG. 1 is a schematic diagram of a hydrophone parameter measurement device;
FIG. 2 is a schematic diagram of a hydrophone parameter measurement device;
FIG. 3 is a schematic diagram of an external form of a hydrophone parameter measurement device;
FIG. 4 is a schematic view of the internal electrical connections of the measurement body;
fig. 5 is a schematic structural view of the base and the ceramic plate.
The symbols in the drawings illustrate that:
1. the device comprises a signal test wire, 2 a signal input socket, 3 a power supply charging socket, 4 a sound field cabin, 5 a base, 6 a cast aluminum box cover, 7 a cast aluminum box cover, 8 a toggle switch, 9 a rotary switch, 10 a digital display resistance meter, 11 a digital display voltmeter, 12 a two-color LED lamp, 13 a gain adjusting knob, 14 a hydrophone to be tested, 15 a limiting block, 16 a standard hydrophone, 17 a battery pack, 18 a signal generation circuit board, 19 a signal processing circuit board and 20 a low-frequency loudspeaker.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments thereof with reference to the attached drawings.
As shown in fig. 1, the fast parameter measuring device mainly comprises a standard hydrophone, a low-frequency horn, a signal generating module, a signal processing module, a digital display module and a sound field cabin body, wherein the output end of the signal generating module is connected with the low-frequency horn, the signal output end of the standard hydrophone is connected with the signal processing module, and the digital display module is connected with the signal processing module.
As shown in fig. 2 and 3, the fast parameter measuring device mainly includes a measuring box, a signal testing line 1, and a sound field cabin 4.
The measuring box mainly comprises a cast aluminum box cover 6, a cast aluminum box shell 7, a base 5, a toggle switch 8, a rotary switch 9, a digital display resistance meter 10, a digital display voltmeter 11, a two-color LED lamp 12 and a gain adjusting knob 13, wherein the base 5, the toggle switch 8, the rotary switch 9, the digital display resistance meter 10, the digital display voltmeter 11, the two-color LED lamp 12 and the gain adjusting knob 13 are respectively installed on the upper surface of the cast aluminum box cover 6. The low frequency horn 20 is connected to the inside of the cast aluminum case cover 6, and the low frequency horn 20 emits sound toward the base 5. The cast aluminum box cover 6 is connected with the cast aluminum box shell 7. The material of the cast aluminum case cover 6 and the cast aluminum case cover 7 is not limited to aluminum.
The base 5 comprises a cylindrical part 5-1 and a top part 5-2, the top part 5-2 is connected with the cylindrical part 5-1, the top part 5-2 is provided with a plurality of sound-transmitting holes 5-2-1, as shown in fig. 5, four limit blocks 15 are fixedly connected with the inner side of the top part 5-2, a standard hydrophone 16 is clamped among the four limit blocks 15 to realize the fixation and positioning of the standard hydrophone 16, and the standard hydrophone 16 is positioned in an inner cavity of the cylindrical part 5-1. It should be noted that, a structure of four limit blocks may not be adopted, and the standard hydrophone 16 may also be fixedly mounted on the inner side of the top portion 5-2 by other means, such as bonding with glue.
The cylindrical part 5-1 is fixedly connected with a cast aluminum box cover 6.
A standard hydrophone 16 is located above the low frequency horn 20.
The cast aluminum box shell 7 is internally and fixedly provided with a battery pack 17, a signal generating circuit board 18 and a signal processing circuit board 19. A power charging socket 3 and two signal input sockets 2 are arranged on the side surface of the cast aluminum box shell 7.
The sound field cabin 4 is cylindrical, a layer of sound-absorbing cotton (the thickness of the sound-absorbing cotton is preferably five millimeters) is adhered to the inner wall of the sound field cabin 4, and the lower end opening of the sound field cabin 4 is sleeved on the cylindrical part 5-1 of the base 5. The length of the sound field cabin 4 is preferably 400-600 mm.
As can be seen from fig. 4, the power charging socket 3 is connected to the battery pack 17, and can supply power to the battery pack 17. The output positive pole of the battery pack 17 is connected with one input A of the rotary switch 9 through the toggle switch 8, and the output negative pole of the battery pack 17 is directly connected with the power supply negative pole terminal of the digital display ohmmeter 10, the power supply negative pole terminal of the digital display voltmeter 11, the power supply negative pole terminal of the signal generating circuit board 18 and the power supply negative pole terminal of the signal processing circuit board 19.
The rotary switch 9 is a two-way gate switch. The output C, E of the rotary switch 9 is respectively connected with the positive terminal of the power supply and the positive terminal of the signal of the digital display ohmmeter 10; the output D of the rotary switch 9 is connected to the positive power terminal of the digital display voltmeter 11, the positive power terminal of the signal generating circuit board 18, and the positive signal terminal of the signal processing circuit board 19, respectively. The output F of the rotary switch is connected to the signal negative terminal of the signal processing circuit board 19.
The output leads of the signal generating circuit board 18 are connected to the power input terminals of the low frequency speaker 20, respectively. The signal output terminal of the standard hydrophone 16 is connected with the signal input terminal of the signal processing circuit board 19.
The positive pole of the signal input socket 2 is connected with the other input B of the rotary switch 9, and the negative pole of the signal input socket 2 is respectively connected with the signal negative pole terminal of the digital display ohmmeter 10 and the signal negative pole terminal of the signal processing circuit board 19.
The gain adjustment knob 13 is connected to a gain adjustment circuit of the signal processing circuit board 19.
When parameter testing is needed, the positive and negative lead wires of the hydrophone 14 to be tested are respectively connected with the positive and negative clamps of the signal testing line 1, and the plug wire at the other end of the signal testing line 1 is connected with the positive and negative electrodes of the signal input socket 2 on the side surface of the cast aluminum box shell 7.
The hydrophone 14 to be tested is placed in the sound field chamber 4.
The rotating switch 9 is twisted leftwards to enable the current device to be in a resistance measuring mode, a lead wire of the hydrophone 14 to be measured is connected with a signal input end of the digital display ohmmeter 10 through the signal testing line 1 and contacts B and E of the rotating switch 9, meanwhile, the battery pack 17 is connected with a power supply input end of the digital display ohmmeter 10 through the toggle switch 8 and contacts A and C of the rotating switch 9, and the digital display ohmmeter 10 displays the actual internal resistance value of the current hydrophone 14 to be measured.
The rotary switch 9 is twisted to the right to enable the current device to be in a measurement sensitivity mode, lead wires of a hydrophone 14 to be measured are connected with a signal input end of a signal processing circuit board 19 through a signal test wire 1 and contacts B and F of the rotary switch 9, meanwhile, a battery pack 17 is connected with a digital display voltmeter 11, a signal generation circuit board 18 and a power supply input end of the signal processing circuit board 19 through contacts A and D of the toggle switch 8 and the rotary switch 9, and meanwhile, a standard hydrophone 16 is also connected with the other input end of the signal processing circuit board 19 through the lead wires. The signal generating circuit board 18 continuously performs fixed-frequency excitation on the low-frequency loudspeaker 20 and enables the low-frequency loudspeaker 20 to make a sound, the standard hydrophone 16 and the hydrophone 14 to be measured respectively input signals to the signal processing circuit board 19 for corresponding processing such as amplification, filtering, addition, AD conversion and the like, the signal processing circuit board 19 outputs comparison results of the standard hydrophone 16 and the hydrophone 14 to be measured to the digital display voltmeter 11 in a direct-current voltage quantity mode, and the digital display ohmmeter 10 can be adjusted to display a calibration sensitivity value of the hydrophone 14 to be measured by adjusting the gain adjusting knob 13.
The two-color LED lamp 12 is electrically connected with the signal processing circuit board 19, when the polarity of the hydrophone 14 to be tested is the same as that of the standard hydrophone 16, the waveform phase of the signal received by the signal processing circuit board 19 is consistent, the hydrophone 14 to be tested can be considered to be positive, the two-color LED lamp 12 on the cast aluminum box cover 6 displays green light, and when the waveform phase of the signal received by the signal processing circuit board 19 is inconsistent under the condition that the wiring mode is not changed, the hydrophone 14 to be tested can be considered to be negative, and the two-color LED lamp 12 on the cast aluminum box cover 6 displays red light. (determination of the polarity of interest, in accordance with the International SEG polarity Standard)
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, since various modifications and changes will occur to those skilled in the art.
Claims (3)
1. A hydrophone parameter measuring device is characterized by comprising a measuring box, a signal testing line, a sound field cabin, a signal generating module, a standard hydrophone, a low-frequency loudspeaker, a signal processing module and a digital display module;
the measuring box comprises a box cover, a box shell and a base, the base comprises a cylindrical part and a top part which are connected together, the top part is provided with a plurality of sound transmission holes, and the standard hydrophone is fixedly connected with the inner side of the top part of the base;
the cylindrical part of the base is fixedly connected with the box cover;
the low-frequency loudspeaker is connected with the inner side of the box cover and emits sound towards the base; the standard hydrophone is positioned above the low-frequency loudspeaker;
the sound field cabin body is cylindrical, and the inner wall of the sound field cabin body is connected with a layer of sound absorption cotton; the lower end opening of the sound field cabin body is sleeved on the cylindrical part of the base;
the signal generating module and the signal processing module are respectively connected with the interior of the box shell, and the digital display module is connected with the box cover;
the output end of the signal generation module is electrically connected with the low-frequency loudspeaker, the signal output end of the standard hydrophone is electrically connected with the signal processing module, and the digital display module is electrically connected with the signal processing module.
2. The hydrophone parameter measurement device of claim 1, wherein the length of the acoustic field chamber is 400-600 mm.
3. The hydrophone parameter measurement device of claim 1, wherein the acoustic wool has a thickness of 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122277218.XU CN216116350U (en) | 2021-09-18 | 2021-09-18 | Hydrophone parameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122277218.XU CN216116350U (en) | 2021-09-18 | 2021-09-18 | Hydrophone parameter measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216116350U true CN216116350U (en) | 2022-03-22 |
Family
ID=80734868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122277218.XU Active CN216116350U (en) | 2021-09-18 | 2021-09-18 | Hydrophone parameter measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216116350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114966139A (en) * | 2022-07-22 | 2022-08-30 | 威海双丰物探设备股份有限公司 | Impedance matcher parameter measuring device for hydrophone |
-
2021
- 2021-09-18 CN CN202122277218.XU patent/CN216116350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114966139A (en) * | 2022-07-22 | 2022-08-30 | 威海双丰物探设备股份有限公司 | Impedance matcher parameter measuring device for hydrophone |
| CN114966139B (en) * | 2022-07-22 | 2022-10-25 | 威海双丰物探设备股份有限公司 | Impedance matcher parameter measuring device for hydrophone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6481288B1 (en) | Measuring the speed of sound of a gas | |
| CN216116350U (en) | Hydrophone parameter measuring device | |
| CN109387564B (en) | Lithium ion battery online detection method and device based on lithium dendrite growth | |
| CN112326782B (en) | Eddy current and acoustic impedance detection sensor and manufacturing method thereof | |
| CN107367635A (en) | Direct current charging pile field tester | |
| CN201945640U (en) | Polyacrylic ester (PEA) space charge tester capable of conducting current | |
| CN107290399B (en) | Transformer water content measuring device based on PDC/FDS medium response method | |
| CN115824384A (en) | Hydrophone parameter measuring device | |
| CN206906520U (en) | A kind of cable major insulation fault locator | |
| CN202748343U (en) | Wireless network-based multifunctional integrated nondestructive testing sensor | |
| CN217741911U (en) | High sound pressure testing device and system for microphone monomer | |
| CN102735751A (en) | Multifunctional integrated non-destructive detection sensor based on wireless network | |
| CN201069437Y (en) | Automatic measuring device for seed cotton water content | |
| CN1202406C (en) | Portable wave detector low frequency receiving voltage sensitivity performance measurer | |
| CN213302074U (en) | Novel standing timber sapwood moisture content measuring apparatu lives | |
| CN210015215U (en) | Testing device for dynamic electrochemical impedance spectrum of battery | |
| CN207181351U (en) | Transformer moisture measurement device based on PDC/FDS dielectric response methods | |
| KR100448840B1 (en) | Apparatus for Measuring Multi-Channel Impedance for Use in Testing Secondary Battery | |
| CN209914069U (en) | Testing device | |
| CN207937801U (en) | A kind of experiment detection device of acceleration transducer | |
| CN207456601U (en) | Sound impedance test instrument | |
| RU2003133914A (en) | SENSOR AND METHOD FOR PRESSURE MEASUREMENT | |
| CN107677359B (en) | Acoustic impedance tester and acoustic impedance testing method | |
| CN106290480A (en) | A kind of detection device and method based on impedance data screening electrolyte film forming defective products | |
| CN214252429U (en) | STM 32-based modular portable impedance testing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |