Device for verifying working temperature of hydrophone and use method thereof

Abstract

The invention discloses a device for verifying the working temperature of a hydrophone and a using method thereof.The device comprises a constant temperature box, a liquid storage barrel is arranged in the constant temperature box, a cross beam is installed at the top of the liquid storage barrel, a hydrophone fixing frame is installed at the bottom of the cross beam, and the bottom end of the hydrophone fixing frame extends into the liquid storage barrel; one standard hydrophone and one to-be-tested hydrophone are arranged in the liquid storage barrel, the standard hydrophone and the to-be-tested hydrophone are both installed at the bottom end of the hydrophone fixing frame, one side of the surface of the liquid storage barrel is fixedly connected with a first traction rope, an electromagnet is installed at one end of the bottom of the cross beam, and an impact ball is fixed to the bottom of the electromagnet in a magnetic attraction mode. One side of the impact ball is fixedly connected with the first traction rope. The electromagnet is used for controlling release of the impact ball, the impact ball impacts the liquid storage barrel under the action of the gravity of the impact ball and the first traction rope, a stable excitation sound source is generated, and a reliable reference signal is provided for performance detection of the hydrophone.

Description

Technical Field

[0001] The present invention relates to the field of hydrophone technical indicator verification, and in particular to a device for verifying the operating temperature of a hydrophone and a method for using the device. Background Art

[0002] A hydrophone is a sensor used for underwater acoustic detection. It converts sound pressure signals in water into electrical signals, enabling the reception, measurement, and analysis of underwater sounds. It has crucial applications in a wide range of fields, including marine scientific research, military reconnaissance, underwater communications, marine resource exploration, and marine environmental monitoring. In practical applications, hydrophones operate within a wide range of temperature variations, which can have a multifaceted impact on their performance. Therefore, temperature verification of hydrophones is crucial. Only by ensuring stable performance across a wide range of temperatures can they meet the demands of diverse applications in diverse environments.

[0003] Verifying the hydrophone's operating temperature range requires providing a constant-temperature environment with different liquids and the same excitation sound source. Conventionally, a constant-temperature water bath is used to provide this constant-temperature liquid environment, but a water bath cannot provide an excitation sound source. Therefore, the excitation sound source must be placed inside the bath, either by tapping the bath's outer shell. Furthermore, due to the wide temperature range of hydrophone verification, placing a sound source inside the bath is crucial.

[0004] Therefore, it is necessary to invent a device for verifying the working temperature of a hydrophone and a method for using the same to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a device for verifying the operating temperature of a hydrophone and a method for using the same, so as to solve the problems in the above-mentioned technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for verifying the working temperature of a hydrophone and a method for using the same, comprising a constant temperature box, a liquid storage barrel provided inside the constant temperature box, a crossbeam installed on the top of the liquid storage barrel, a hydrophone fixing bracket installed at the bottom of the crossbeam, the bottom end of the hydrophone fixing bracket extending into the liquid storage barrel, a standard hydrophone and a hydrophone to be tested provided inside the liquid storage barrel, the standard hydrophone and the hydrophone to be tested are both installed at the bottom end of the hydrophone fixing bracket, one side of the surface of the liquid storage barrel is fixedly connected to a No. 1 traction rope, an electromagnet is installed at one end of the bottom of the crossbeam, an impact ball is magnetically fixed to the bottom of the electromagnet, one side of the impact ball is fixedly connected to the No. 1 traction rope, and the other side of the impact ball is fixedly connected to the No. 2 traction rope.

[0007] Through the combined design of a constant temperature box, a liquid storage barrel, a hydrophone holder, a standard hydrophone, and the hydrophone to be tested, accurate verification of the hydrophone performance in a constant temperature environment is achieved; the design of the impact ball and electromagnet can generate a stable excitation sound source, providing a reliable reference signal for hydrophone performance testing.

[0008] Preferably, a through hole No. 1 is provided on the surface of one end of the beam, and a through hole No. 2 is provided on the top of the constant temperature box. The through hole No. 2 is arranged directly above the through hole No. 1, and the through hole No. 2 matches the through hole No. 1.

[0009] By opening matching through holes No. 1 and No. 2 on the crossbeam and the top of the constant temperature box, it is convenient for the No. 2 traction rope to pass through and operate.

[0010] Preferably, a sliding sleeve is installed inside the No. 1 through hole and the No. 2 through hole, one end of the No. 2 traction rope passes through the two sliding sleeves in sequence and extends to the outside of the constant temperature box, and the end of the No. 2 traction rope extending to the outside of the constant temperature box is fixedly connected to a handle.

[0011] The installation of the sliding sleeve makes the No. 2 traction rope pass through the through hole more smoothly, reduces friction and wear, and extends the service life of the device; the handle design makes it easier for the operator to pull the No. 2 traction rope.

[0012] Preferably, a collector is installed on the front of the constant temperature box, and the standard hydrophone and the hydrophone to be tested are both electrically connected to the collector.

[0013] The installation of the collector realizes the automatic collection and comparison of the test results of the standard hydrophone and the hydrophone to be tested.

[0014] Preferably, a 24V DC power supply is installed on one side of the constant temperature box, and the electromagnet is electrically connected to the 24V DC power supply.

[0015] The 24V DC power supply provides a stable power supply to the electromagnet, ensuring the reliable magnetic attraction and fixation of the electromagnet to the impact ball.

[0016] Preferably, a controller is installed on the front of the constant temperature box, and the constant temperature box, collector, 24V DC power supply, standard hydrophone and hydrophone to be tested are all electrically connected to the controller.

[0017] The installation of the controller realizes the centralized control of the constant temperature box, collector, 24V DC power supply, standard hydrophone and hydrophone to be tested, simplifies the operation process and improves the automation level of the device.

[0018] Preferably, the standard hydrophone and the hydrophone to be tested are symmetrically distributed about the hydrophone fixing frame, the sensing ends of the standard hydrophone and the hydrophone to be tested are at the same height from the bottom of the liquid storage barrel, and the No. 1 traction rope is kept taut.

[0019] The standard hydrophone and the hydrophone to be tested are symmetrically distributed about the hydrophone fixing frame, and the sensing end is at the same height from the bottom of the liquid storage barrel, ensuring the consistency of the two during the detection process and improving the accuracy of the comparison results; the taut state of the No. 1 traction rope ensures the stable motion trajectory of the impact ball after release, further improving the stability of the excitation sound source.

[0020] In addition, the present invention also provides a method for using the device for verifying the operating temperature of a hydrophone, comprising the following steps:

[0021] S1 opens the thermostat and fills the storage barrel with dielectric liquid. The dielectric liquid can be selected according to the operating temperature range of the standard hydrophone;

[0022] S2 pulls the No. 2 traction rope by the handle to pull the impact ball to the electromagnet, and controls the 24V DC power supply to power the electromagnet through the controller, and uses the electromagnet to magnetically fix the impact ball;

[0023] S3 controls the thermostat through the controller to adjust the internal temperature of the thermostat to the set value;

[0024] S4 turns off the 24V DC power supply through the controller, causing the electromagnet to release the impact ball. The impact ball hits the liquid storage barrel under the action of the No. 1 traction rope under its own gravity, thereby generating an excitation sound source;

[0025] S5 starts the collector, standard hydrophone and hydrophone to be tested through the controller, detects the excitation sound source through the standard hydrophone and the hydrophone to be tested, collects and compares the detection results of the standard hydrophone and the hydrophone to be tested through the collector, and judges whether the hydrophone to be tested is working normally under the current temperature state based on the comparison results.

[0026] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0027] 1. An electromagnet controls the release of the impact ball, which, under the influence of its own gravity and the No. 1 traction rope, strikes the liquid storage tank, generating a stable excitation sound source and providing a reliable reference signal for hydrophone performance testing.

[0028] 2. The standard hydrophone and the hydrophone under test detect the excitation sound source at the same time. The collector collects and compares the detection results of the two, which can directly and quickly determine the working performance of the hydrophone under test under the current temperature state, improving the accuracy and efficiency of verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2This is a cross-sectional view of the overall structure of the impact ball of the present invention before it is released;

[0031] Figure 3 This is a cross-sectional view of the overall structure of the present invention after the impact ball is released;

[0032] Figure 4 It is a partial structural cross-sectional view of the present invention;

[0033] Figure 5 This is a block diagram of the working temperature verification principle of the hydrophone of the present invention.

[0034] Description of reference numerals:

[0035] 1. Constant temperature box; 2. Liquid storage tank; 3. Crossbeam; 4. Hydrophone mounting bracket; 5. Standard hydrophone; 6. Hydrophone to be tested; 7. Pull rope No. 1; 8. Electromagnet; 9. Impact ball; 10. Pull rope No. 2; 11. Slide; 12. Handle; 13. Collector; 14. 24V DC power supply; 15. Controller. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] The present invention provides Figure 1-5 The device shown is for verifying the working temperature of a hydrophone and a method for using the same, comprising a constant temperature box 1, a liquid storage barrel 2 being provided inside the constant temperature box 1, a crossbeam 3 being installed on the top of the liquid storage barrel 2, a hydrophone fixing frame 4 being installed at the bottom of the crossbeam 3, the bottom end of the hydrophone fixing frame 4 extending into the liquid storage barrel 2, a standard hydrophone 5 and a hydrophone to be tested 6 being provided inside the liquid storage barrel 2, the standard hydrophone 5 and the hydrophone to be tested 6 being both installed at the bottom end of the hydrophone fixing frame 4, a No. 1 traction rope 7 being fixedly connected to one side of the surface of the liquid storage barrel 2, an electromagnet 8 being installed at one end of the bottom of the crossbeam 3, an impact ball 9 being magnetically fixed to the bottom of the electromagnet 8, one side of the impact ball 9 being fixedly connected to the No. 1 traction rope 7, and the other side of the impact ball 9 being fixedly connected to the No. 2 traction rope 10.

[0038] In one aspect of this embodiment, a through hole No. 1 is provided on the surface of one end of the crossbeam 3, and a through hole No. 2 is provided on the top of the thermostat 1. The through hole No. 2 is arranged just above the through hole No. 1, and the through hole No. 2 matches the through hole No. 1. Slide sleeves 11 are installed inside the through holes No. 1 and No. 2. One end of the No. 2 traction rope 10 passes through the two slide sleeves 11 in sequence and extends to the outside of the thermostat 1. The end of the No. 2 traction rope 10 extending to the outside of the thermostat 1 is fixedly connected to a handle 12. A collector 13 is installed on the front of the thermostat 1. The standard hydrophone 5 and the hydrophone to be tested 6 are both connected to the The collector 13 is electrically connected, a 24V DC power supply 14 is installed on one side of the constant temperature box 1, the electromagnet 8 is electrically connected to the 24V DC power supply 14, and a controller 15 is installed on the front of the constant temperature box 1. The constant temperature box 1, the collector 13, the 24V DC power supply 14, the standard hydrophone 5 and the hydrophone to be tested 6 are all electrically connected to the controller 15. The standard hydrophone 5 and the hydrophone to be tested 6 are symmetrically distributed about the hydrophone fixing frame 4. The sensing ends of the standard hydrophone 5 and the hydrophone to be tested 6 are at the same height from the bottom of the liquid storage barrel 2, and the No. 1 traction rope 7 is kept taut.

[0039] In addition, the present invention also provides a method for using the device for verifying the operating temperature of a hydrophone, comprising the following steps:

[0040] S1 opens the thermostat 1 and fills the liquid storage barrel 2 with dielectric liquid. The dielectric liquid can be selected according to the operating temperature range of the standard hydrophone 5.

[0041] S2 pulls the second traction rope 10 through the handle 12 to pull the impact ball 9 to the electromagnet 8, and controls the 24V DC power supply 14 to power the electromagnet 8 through the controller 15, so that the electromagnet 8 can magnetically fix the impact ball 9;

[0042] S3 controls the thermostat 1 through the controller 15 to adjust the internal temperature of the thermostat 1 to the set value;

[0043] S4 turns off the 24V DC power supply 14 through the controller 15, causing the electromagnet 8 to release the impact ball 9. The impact ball 9 hits the liquid storage barrel 2 under the action of the No. 1 traction rope 7 under its own gravity, thereby generating an excitation sound source;

[0044] S5 starts the collector 13, the standard hydrophone 5, and the hydrophone under test 6 through the controller 15. The standard hydrophone 5 and the hydrophone under test 6 detect the excitation sound source. The collector 13 collects and compares the detection results of the standard hydrophone 5 and the hydrophone under test 6. Based on the comparison results, it is determined whether the hydrophone under test 6 is operating normally under the current temperature state.

[0045] The constant temperature box 1, standard hydrophone 5, electromagnet 8, collector 13, 24V DC power supply 14 and controller 15 mentioned in the above content are all existing technical products, and their specific structures and functions are not repeated here.

[0046] Working principle of the present invention:

[0047] Refer to the instruction manual Figure 1-5 When using the present invention, first, open the thermostat 1 and fill the liquid storage barrel 2 with dielectric liquid. The dielectric liquid can be selected according to the operating temperature range of the standard hydrophone 5 to ensure that a suitable liquid environment can be provided under different temperature conditions.

[0048] Next, the second traction rope 10 is pulled by the handle 12 to pull the impact ball 9 to the electromagnet 8, and the controller 15 controls the 24V DC power supply 14 to supply power to the electromagnet 8. The magnetism generated by the electromagnet 8 when it is energized is used to magnetically fix the impact ball 9. At this time, the impact ball 9 is fixed under the electromagnet 8, and the first traction rope 7 remains taut.

[0049] Then, the controller 15 controls the constant temperature box 1 to adjust the internal temperature of the constant temperature box 1 to a set value. This step is to simulate the different temperature environments that the hydrophone may encounter in actual application. When the internal temperature of the constant temperature box 1 reaches the set value, the controller 15 turns off the 24V DC power supply 14, causing the electromagnet 8 to lose its magnetism, thereby releasing the impact ball 9. Under the influence of its own gravity and the first traction rope 7, the impact ball 9 hits the liquid storage barrel 2 at a certain speed and angle, thereby generating an excitation sound source. This excitation sound source will serve as the reference signal for the performance test of the hydrophone.

[0050] Finally, the controller 15 activates the collector 13, the standard hydrophone 5, and the hydrophone under test 6. The standard hydrophone 5 and the hydrophone under test 6 simultaneously detect the excitation sound source and convert the sound pressure signal into an electrical signal. The collector 13 collects the detection results of the standard hydrophone 5 and the hydrophone under test 6 and performs a comparative analysis. Based on the comparison results, it can be determined whether the hydrophone under test 6 is operating normally under the current temperature state, that is, whether its performance is stable and reliable.

[0051] By continuously adjusting the internal temperature of the constant temperature box 1 and detecting the working performance of the hydrophone 6 to be tested at different temperatures, the working temperature range of the hydrophone 6 to be tested is gradually verified.

Claims

1. A device for verifying the working temperature of a hydrophone, comprising a thermostat (1), characterized in that: A liquid storage barrel (2) is provided inside the constant temperature box (1), a crossbeam (3) is installed on the top of the liquid storage barrel (2), a hydrophone fixing frame (4) is installed at the bottom of the crossbeam (3), the bottom end of the hydrophone fixing frame (4) extends into the liquid storage barrel (2), a standard hydrophone (5) and a hydrophone to be tested (6) are provided inside the liquid storage barrel (2), the standard hydrophone (5) and the hydrophone to be tested (6) are both installed at the bottom end of the hydrophone fixing frame (4), one side of the surface of the liquid storage barrel (2) is fixedly connected to a No. 1 traction rope (7), one end of the bottom of the crossbeam (3) is installed, a striking ball (9) is magnetically fixed to the bottom of the electromagnet (8), one side of the striking ball (9) is fixedly connected to the No. 1 traction rope (7), and the other side of the striking ball (9) is fixedly connected to a No. 2 traction rope (10).

2. The device for verifying the operating temperature of a hydrophone according to claim 1, characterized in that: A through hole No. 1 is provided on one end surface of the crossbeam (3), and a through hole No. 2 is provided on the top of the constant temperature box (1). The through hole No. 2 is arranged directly above the through hole No. 1, and the through hole No. 2 matches the through hole No.

1.

3. The device for verifying the operating temperature of a hydrophone according to claim 2, characterized in that: Slide sleeves (11) are installed inside the No. 1 through hole and the No. 2 through hole, and one end of the No. 2 traction rope (10) passes through the two slide sleeves (11) in sequence and extends to the outside of the constant temperature box (1). The end of the No. 2 traction rope (10) extending to the outside of the constant temperature box (1) is fixedly connected to a handle (12).

4. The device for verifying the operating temperature of a hydrophone according to claim 1, characterized in that: A collector (13) is installed on the front of the constant temperature box (1), and the standard hydrophone (5) and the hydrophone to be tested (6) are both electrically connected to the collector (13).

5. The device for verifying the operating temperature of a hydrophone according to claim 4, characterized in that: A 24V DC power supply (14) is installed on one side of the thermostat (1), and the electromagnet (8) is electrically connected to the 24V DC power supply (14).

6. The device for verifying the operating temperature of a hydrophone according to claim 5, characterized in that: A controller (15) is installed on the front of the thermostat (1); the thermostat (1), the collector (13), the 24V DC power supply (14), the standard hydrophone (5) and the hydrophone to be tested (6) are all electrically connected to the controller (15).

7. The device for verifying the operating temperature of a hydrophone according to claim 1, characterized in that: The standard hydrophone (5) and the hydrophone to be tested (6) are symmetrically distributed about the hydrophone fixing frame (4); the sensing ends of the standard hydrophone (5) and the hydrophone to be tested (6) are at the same height from the bottom of the liquid storage barrel (2); and the No. 1 traction rope (7) is kept in a taut state.

8. A method for using a device for verifying the operating temperature of a hydrophone, characterized in that: The method of use adopts a device for verifying the working temperature of a hydrophone according to any one of claims 1 to 7, and the method of use comprises the following steps: S1 opens the thermostat (1) and fills the liquid storage barrel (2) with dielectric liquid, which can be selected according to the operating temperature range of the standard hydrophone (5); S2 pulls the second traction rope (10) through the handle (12) to pull the impact ball (9) to the electromagnet (8), and controls the 24V DC power supply (14) through the controller (15) to supply power to the electromagnet (8), and uses the electromagnet (8) to magnetically fix the impact ball (9); S3 controls the thermostat (1) through the controller (15) to adjust the internal temperature of the thermostat (1) to a set value; S4 turns off the 24V DC power supply (14) through the controller (15), causing the electromagnet (8) to release the impact ball (9), and the impact ball (9) hits the liquid storage barrel (2) under the action of the No. 1 traction rope (7) under its own weight, thereby generating an excitation sound source; S5 starts the collector (13), the standard hydrophone (5) and the hydrophone to be tested (6) through the controller (15), detects the excitation sound source through the standard hydrophone (5) and the hydrophone to be tested (6), collects and compares the detection results of the standard hydrophone (5) and the hydrophone to be tested (6) through the collector (13), and judges whether the hydrophone to be tested (6) is working normally under the current temperature state according to the comparison result.

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