Sensitivity testing apparatus for hydrophone
A technology for sensitivity testing and hydrophones, applied in the direction of measuring devices, instruments, measuring vibrations, etc., can solve problems such as errors, inconvenience, and low accuracy, and achieve the goal of narrowing the error range, improving accuracy, and improving testing efficiency Effect
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[0022] The present invention will be described below in conjunction with the accompanying drawings and embodiments.
[0023] see figure 1 , the hydrophone sensitivity testing device of the present invention, at first comprises a liquid column test container placed on the vibrating table 6, and it comprises a rigid wall circular tube 1 with an inner diameter far smaller than the sound wave wavelength of the liquid in the tube, with an open end, containing There is liquid at a certain height as the measurement medium, and the entire liquid column test container is driven by a vibrating table 6 that can vibrate sinusoidally, and the hydrophone 3 that needs to test the sensitivity is suspended on a support, and is vertically suspended at the center of the liquid column in the container axis. The vibrating table 6 is fixedly connected to the bottom of the rigid-walled circular pipe 1 through a flange 4 . An accelerometer is fixedly installed at the bottom of the rigid wall tube 1...
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