Automatic hydrophone operating temperature verification device

Abstract

The utility model discloses an automatic hydrophone working temperature verification device, including constant temperature water bath case, the constant temperature water bath case top is equipped with the box cover, the box cover one side is fixedly connected with the crossbeam, the crossbeam top middle part is equipped with 24V direct current source, the crossbeam bottom one end is equipped with the electromagnet, the electromagnet is connected with 24V direct current source electricity, the electromagnet bottom magnetism suction is fixed with the impact ball, constant temperature water bath case surface one side is fixedly connected with no.

Description

Technical Field

[0001] This utility model relates to the field of hydrophone technical specification verification, specifically to an automatic hydrophone operating temperature verification device. Background Technology

[0002] A hydrophone is a sensor used for underwater acoustic detection, converting sound pressure signals in water into electrical signals to receive, measure, and analyze underwater sounds. It has crucial applications in numerous fields, including marine scientific research, military reconnaissance, underwater communication, marine resource exploration, and marine environmental monitoring. In practical applications, hydrophones operate in environments with significant temperature variations, which can have multifaceted impacts on their performance. Therefore, validating the hydrophone's operating temperature is essential; only by ensuring stable performance under different temperatures can it meet the application requirements of various complex environments.

[0003] Verifying the operating temperature range of a hydrophone requires providing different constant-temperature liquid environments with the same excitation sound source. Providing a constant-temperature liquid environment typically requires a constant-temperature water bath, but a water bath cannot provide an excitation sound source. It is necessary to tap the outer shell of the water bath or place the excitation sound source inside the water bath. Furthermore, because the hydrophone verification temperature range is large, the requirements for the sound source placed inside the water bath are quite stringent.

[0004] Therefore, it is necessary to invent an automatic hydrophone operating temperature verification device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an automatic hydrophone operating temperature verification device to solve the problems in the above-mentioned technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic hydrophone operating temperature verification device, comprising a constant temperature water bath, a lid installed on the top of the constant temperature water bath, a crossbeam fixedly connected to one side of the lid, a 24V DC power supply installed in the middle of the top of the crossbeam, an electromagnet installed at one end of the bottom of the crossbeam, the electromagnet being electrically connected to the 24V DC power supply, an impact ball magnetically fixed to the bottom of the electromagnet, a first traction rope fixedly connected to one side of the surface of the constant temperature water bath, one side of the impact ball being fixedly connected to the first traction rope, and a second traction rope fixedly connected to the other side of the impact ball;

[0007] The surface of the crossbeam has a through hole, and a sliding sleeve is installed inside the through hole. A DC brushless motor is installed on the top of the box cover. A reel is installed at one end of the output shaft of the DC brushless motor. One end of the second traction rope passes through the sliding sleeve and is wound around the surface of the reel. A controller is installed on the front of the constant temperature water bath. The constant temperature water bath, the 24V DC power supply, and the DC brushless motor are all electrically connected to the controller.

[0008] By providing a stable liquid temperature environment through a constant temperature water bath, and combining an automatic lifting and releasing mechanism for the impact ball controlled by an electromagnet and a DC brushless motor, the performance of the hydrophone can be automatically verified at different temperatures.

[0009] Preferably, the top of the box cover is equipped with a feeding port and an exhaust valve, and the top of the feeding port is threaded with a sealing cap.

[0010] The feed port and exhaust valve installed on the tank cover facilitate the addition of liquid media and the discharge of gas inside the device.

[0011] Preferably, a hydrophone mounting bracket is installed at the bottom of the box cover, and a standard hydrophone and a hydrophone to be tested are installed inside the constant temperature water bath, with both the standard hydrophone and the hydrophone to be tested mounted on the surface of the hydrophone mounting bracket.

[0012] The design of the hydrophone mounting bracket allows standard hydrophones and hydrophones under test to be stably installed inside the constant temperature water bath.

[0013] Preferably, the standard hydrophone and the hydrophone under test are symmetrically distributed about the hydrophone mounting bracket, the sensing ends of the standard hydrophone and the hydrophone under test are at the same height from the bottom of the constant temperature water bath, and the first traction rope is kept taut.

[0014] The standard hydrophone and the hydrophone under test are symmetrically distributed about the hydrophone mounting bracket, and the sensing end is at the same height from the bottom of the liquid storage tank, which ensures the consistency of the two during the testing process and improves the accuracy of the comparison results; the taut state of the No. 1 traction rope ensures the stable trajectory of the impact ball after release, further improving the stability of the excitation sound source.

[0015] Preferably, a data acquisition device is installed on the front of the constant temperature water bath, and the standard hydrophone and the hydrophone under test are both electrically connected to the data acquisition device. The standard hydrophone, the hydrophone under test, and the data acquisition device are all electrically connected to the controller.

[0016] The installation of the data acquisition device enables the automatic acquisition and comparison of test results from standard hydrophones and hydrophones under test.

[0017] Preferably, a first guide pulley is rotatably connected to the bottom of the crossbeam, and a second guide pulley is rotatably connected to the top of the crossbeam. The second traction rope passes through the grooves on the surfaces of the first and second guide pulleys.

[0018] The design of the No. 2 traction rope winding around the No. 1 and No. 2 guide pulleys ensures the smoothness of the No. 2 traction rope during winding and release, reduces friction and wear, extends the service life of the device, and improves the overall stability and reliability of the device.

[0019] Preferably, a discharge port is fixedly connected to one side of the constant temperature water bath near its bottom, and a control valve is installed in the middle of the discharge port.

[0020] The discharge port, which is fixedly connected to one side of the constant temperature water bath near its bottom, and the control valve installed in the middle of the discharge port, facilitate the discharge and replacement of the liquid medium inside the device, and improve the flexibility and convenience of the device.

[0021] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0022] 1. The start and stop of the DC brushless motor and the energization and de-energization of the electromagnet are controlled by the controller, thereby realizing the automatic lifting and release of the impact ball. It can automatically strike the outside of the constant temperature water bath to provide an excitation sound source. The entire verification process is highly automated, which greatly simplifies the operation process and improves work efficiency.

[0023] 2. The design of the sliding sleeve and guide pulley ensures the smooth winding and release of the No. 2 traction rope, improving the overall stability and reliability of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the impact ball of this utility model before it is released;

[0025] Figure 2 This is a cross-sectional view of the overall structure of the impact ball of this utility model before it is released;

[0026] Figure 3 This is a schematic diagram of the overall structure of the impact ball after it is released.

[0027] Figure 4 This is a cross-sectional view of the overall structure of the impact ball after its release.

[0028] Figure 5 This is a partial structural cross-sectional view of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Constant temperature water bath; 2. Box cover; 3. Crossbeam; 4. 24V DC power supply; 5. Electromagnet; 6. Impact ball; 7. Traction rope No. 1; 8. Traction rope No. 2; 9. Sliding sleeve; 10. DC brushless motor; 11. Winding reel; 12. Controller; 13. Feeding port; 14. Hydrophone mounting bracket; 15. Standard hydrophone; 16. Hydrophone under test; 17. Data collector; 18. Guide pulley No. 1; 19. Guide pulley No. 2; 20. Discharge port. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides, for example Figure 1-5 An automatic hydrophone operating temperature verification device is shown, including a constant temperature water bath 1, a cover 2 installed on the top of the constant temperature water bath 1, a crossbeam 3 fixedly connected to one side of the cover 2, a 24V DC power supply 4 installed in the middle of the top of the crossbeam 3, an electromagnet 5 installed at one end of the bottom of the crossbeam 3, the electromagnet 5 being electrically connected to the 24V DC power supply 4, an impact ball 6 being magnetically fixed to the bottom of the electromagnet 5, a first traction rope 7 fixedly connected to one side of the surface of the constant temperature water bath 1, one side of the impact ball 6 being fixedly connected to the first traction rope 7, and a second traction rope 8 fixedly connected to the other side of the impact ball 6;

[0033] A through hole is provided on the surface of the crossbeam 3, and a sliding sleeve 9 is installed inside the through hole. A DC brushless motor 10 is installed on the top of the box cover 2. A reel 11 is installed at one end of the output shaft of the DC brushless motor 10. One end of the second traction rope 8 passes through the sliding sleeve 9 and is wound around the surface of the reel 11. A controller 12 is installed on the front of the constant temperature water bath 1. The constant temperature water bath 1, the 24V DC power supply 4 and the DC brushless motor 10 are all electrically connected to the controller 12.

[0034] In one aspect of this embodiment, a feeding port 13 and an exhaust valve are installed on the top of the box cover 2. A sealing cap is threaded onto the top of the feeding port 13. A hydrophone mounting bracket 14 is installed at the bottom of the box cover 2. The constant temperature water bath 1 contains one standard hydrophone 15 and one hydrophone to be tested 16. Both the standard hydrophone 15 and the hydrophone to be tested 16 are mounted on the surface of the hydrophone mounting bracket 14. The standard hydrophone 15 and the hydrophone to be tested 16 are symmetrically distributed about the hydrophone mounting bracket 14. The sensing ends of the standard hydrophone 15 and the hydrophone to be tested 16 are at the same height from the bottom of the constant temperature water bath 1. A first traction rope 7 is used to secure... With the constant temperature water bath 1 in a taut state, a data acquisition device 17 is installed on the front. The standard hydrophone 15 and the hydrophone under test 16 are both electrically connected to the data acquisition device 17. The standard hydrophone 15, the hydrophone under test 16 and the data acquisition device 17 are all electrically connected to the controller 12. The bottom of the crossbeam 3 is rotatably connected to a first guide pulley 18, and the top of the crossbeam 3 is rotatably connected to a second guide pulley 19. The second traction rope 8 is wound around the grooves on the surface of the first guide pulley 18 and the second guide pulley 19. A discharge port 20 is fixedly connected to one side of the constant temperature water bath 1 near its bottom. A control valve is installed in the middle of the discharge port 20.

[0035] The constant temperature water bath 1, 24V DC power supply 4, electromagnet 5, DC brushless motor 10, controller 12, standard hydrophone 15 and data acquisition device 17 mentioned above are all existing technology products, and their specific structures and functions will not be described in detail here.

[0036] Working principle of this utility model:

[0037] Refer to the instruction manual appendix Figure 1-5 When using this utility model, firstly, the medium liquid is injected into the constant temperature water bath 1 through the feeding port 13. The medium liquid can be selected according to the working temperature range of the standard hydrophone 15 to ensure that a suitable liquid environment can be provided under different temperature conditions.

[0038] Next, the controller 12 controls the brushless DC motor 10 to drive the reel 11 to rotate, and the reel 11 winds up the second traction rope 8 to pull the impact ball 6 to the electromagnet 5. The controller 12 controls the 24V DC power supply 4 to supply power to the electromagnet 5. The magnetism generated when the electromagnet 5 is energized is used to magnetically attract and fix the impact ball 6. At this time, the impact ball 6 is fixed below the electromagnet 5, and the first traction rope 7 remains taut.

[0039] Then, the temperature inside the constant temperature water bath 1 is adjusted to the set value by the controller 12. This step is to simulate different temperature environments that the hydrophone may encounter in actual application. When the temperature inside the constant temperature water bath 1 reaches the set value, the DC brushless motor 10 and the 24V DC power supply 4 are turned off by the controller 12. After the DC brushless motor 10 is powered off, its output shaft can rotate freely. After the electromagnet 5 is powered off, it will lose its magnetism, thereby releasing the impact ball 6. Under the action of its own gravity and the first traction rope 7, the impact ball 6 hits the constant temperature water bath 1 at a certain speed and angle, thereby generating an excitation sound source. This excitation sound source will serve as the reference signal for hydrophone performance testing. During the fall, the impact ball 6 will pull the second traction rope 8, thereby driving the reel 11 and the output shaft of the DC brushless motor 10 to rotate.

[0040] Finally, the controller 12 starts the acquisition unit 17, the standard hydrophone 15 and the hydrophone under test 16. The standard hydrophone 15 and the hydrophone under test 16 simultaneously detect the excitation sound source and convert the sound pressure signal into an electrical signal. The acquisition unit 17 collects the detection results of the standard hydrophone 15 and the hydrophone under test 16 and performs comparative analysis. Based on the comparison results, it can be determined whether the hydrophone under test 16 is working normally under the current temperature condition, that is, whether its performance is stable and reliable.

[0041] By continuously adjusting the internal temperature of the constant temperature water bath 1 and testing the working performance of the hydrophone 16 under test at different temperatures, the working temperature range of the hydrophone 16 under test is gradually verified.

Claims

1. An automatic hydrophone operating temperature verification device, comprising a constant temperature water bath (1), characterized in that: The constant temperature water bath (1) is equipped with a lid (2) on top. A crossbeam (3) is fixedly connected to one side of the lid (2). A 24V DC power supply (4) is installed in the middle of the top of the crossbeam (3). An electromagnet (5) is installed at one end of the bottom of the crossbeam (3). The electromagnet (5) is electrically connected to the 24V DC power supply (4). An impact ball (6) is magnetically fixed to the bottom of the electromagnet (5). A first traction rope (7) is fixedly connected to one side of the surface of the constant temperature water bath (1). One side of the impact ball (6) is fixedly connected to the first traction rope (7). A second traction rope (8) is fixedly connected to the other side of the impact ball (6). The crossbeam (3) has a through hole on its surface, and a sliding sleeve (9) is installed inside the through hole. A DC brushless motor (10) is installed on the top of the box cover (2). A reel (11) is installed at one end of the output shaft of the DC brushless motor (10). One end of the second traction rope (8) passes through the sliding sleeve (9) and is wound around the surface of the reel (11). A controller (12) is installed on the front of the constant temperature water bath (1). The constant temperature water bath (1), the 24V DC power supply (4) and the DC brushless motor (10) are all electrically connected to the controller (12).

2. The automatic hydrophone operating temperature verification device according to claim 1, characterized in that: The top of the box cover (2) is equipped with a feeding port (13) and an exhaust valve, and the top of the feeding port (13) is threaded with a sealing cap.

3. The automatic hydrophone operating temperature verification device according to claim 1, characterized in that: The bottom of the box cover (2) is equipped with a hydrophone mounting bracket (14). The constant temperature water bath (1) contains a standard hydrophone (15) and a hydrophone to be tested (16). The standard hydrophone (15) and the hydrophone to be tested (16) are both mounted on the surface of the hydrophone mounting bracket (14).

4. The automatic hydrophone operating temperature verification device according to claim 3, characterized in that: The standard hydrophone (15) and the hydrophone under test (16) are symmetrically distributed about the hydrophone mounting bracket (14). The sensing ends of the standard hydrophone (15) and the hydrophone under test (16) are at the same height from the bottom of the constant temperature water bath (1). The first traction rope (7) is kept taut.

5. The automatic hydrophone operating temperature verification device according to claim 3, characterized in that: The constant temperature water bath (1) is equipped with a data acquisition device (17) on the front. The standard hydrophone (15) and the hydrophone under test (16) are electrically connected to the data acquisition device (17). The standard hydrophone (15), the hydrophone under test (16) and the data acquisition device (17) are all electrically connected to the controller (12).

6. The automatic hydrophone operating temperature verification device according to claim 1, characterized in that: The bottom of the crossbeam (3) is rotatably connected to a first guide pulley (18), and the top of the crossbeam (3) is rotatably connected to a second guide pulley (19). The second traction rope (8) passes through the grooves on the surfaces of the first guide pulley (18) and the second guide pulley (19).

7. The automatic hydrophone operating temperature verification device according to claim 1, characterized in that: A discharge port (20) is fixedly connected to one side of the constant temperature water bath (1) near its bottom, and a control valve is installed in the middle of the discharge port (20).

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