Calibration device for hydrophone free field comparison method

By designing a calibration device including a clamping bracket, a hydrophone holder, a fixed crossbar, an upper fixed bracket and a lower fixed bracket, the problem of insufficient structural fixation of the existing hydrophone calibration device is solved, adapting and free adjustment of different models of hydrophones is achieved, and the efficiency and applicability of calibration tests are improved.

CN222689260UActive Publication Date: 2025-03-28JIANGSU JUNLONG ELECTRIC TECH
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Patent Information

Application Number
CN202421499044.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-03-28
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

Due to insufficient structural fixation of the existing hydrophone calibration device, it is necessary to adjust and set with the help of external equipment, and the overall efficiency and practicality are lacking.

Method used

A calibration device including a clamping bracket, a hydrophone bracket, a fixing crossbar, an upper fixing bracket and a lower fixing bracket is designed. Through the use of adjustment bolts and fixing bolts, the horizontal adjustment and fixing of the hydrophone bracket is realized, adapting to the structural size of different types of hydrophones, and freely adjusting the distance between the hydrophone and the standard sound source transducer within a certain range.

Benefits of technology

The device can adapt to the structural dimensions of various types of standard hydrophones and the hydrophones under test within a certain range, realize convenient fixed connection and free adjustment, and improve the efficiency and applicability of calibration tests.

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Abstract

The utility model discloses a calibration device for a hydrophone free field comparison method, which relates to the technical field of hydrophone calibration, and comprises a clamping support and a hydrophone support, one side of the clamping support is connected with the hydrophone support, the top of the hydrophone support is horizontally connected with a fixed cross rod, and the fixed cross rod is connected with the hydrophone support. The top surface of the fixing cross rod is vertically connected with an upper fixing support, and the bottom surface of the fixing cross rod is vertically connected with a lower fixing support. According to the calibration device for the hydrophone free field comparison method, the whole device can be fixed with a pool test traveling system through the arrangement of the upper fixing bracket, and meanwhile, the calibration device can adapt to standard sound source transducers of various models and sizes within a certain range under the use of the lower fixing bracket; in addition, through mutual adjustment of the clamping bracket, the hydrophone bracket and the fixed cross rod, the hydrophone is used. Therefore, various types of standard hydrophones and tested hydrophones can be adapted in a certain range, and the distance between the hydrophone and the standard sound source transducer can be freely adjusted to adapt to the test.
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