Adjustable sound isolation test system and method

Abstract

The invention provides an adjustable sound isolation test system and method, wherein the adjustable sound isolation test system includes a transmitting subsystem, a receiving subsystem and a cylinder; the transmitting subsystem includes a transmitting transducer, and the receiving subsystem It includes a first hydrophone and a second hydrophone, and a baffle is installed on the cylinder; the transmitting transducer and the first hydrophone are respectively located on both sides of the baffle; the transmitting transducer and the second hydrophone The transducers are located on the same or different sides of the baffle; the transmitting transducer and / or the first hydrophone can be displaced relative to the cylinder. The present invention adds an adjustable receiving and transmitting transducer to the existing underwater acoustic equipment cylinder, which makes up for the defect that the existing underwater acoustic equipment cannot adjust the distance of the transducer in the sound isolation test system.

Description

Technical field[0001]The present invention relates to the field of water sound test systems, and in particular, to an adjustable acoustic isolation test system and method.Background technique[0002]In order to realize the function of edge-collected functions, the water sound device is required to have good acoustic isolation performance, that is, when the transmit transducer transmits high-power broadband signal, the receiving the aqueous hearing is not affected by the transmitted signal, but still can Receive a distant sonar signal. Usually the appearance of the water sound device is a cylindrical cylindrical body, and an electronic device such as a signal transmitter, a receiver, and a signal processing module is loaded inside, and the receiving / shifter is mounted on the cylinder.[0003]In order to meet the performance requirements of the water sound equipment level, the appearance of the general receiving / shifter is designed as cylindrical. The receiving ambient is small, light...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no underwater acoustic test system dedicated to sound isolation measurement. Even if the test system is built with the help of existing underwater acoustic measurement equipment, the isolation test can only be carried out for underwater acoustic equipment with a fixed relative installation position, and it cannot be tested during the test process. According to the requirements of the test frequency band, the relative position and distance between the transmitting transducer and the cylinder, the receiving hydrophone and the cylinder or the baffle are adjusted in real time, and it is even more impossible to maximize the impact of the baffle in the working frequency band. Beneficial contribution of isolation

These defects bring a lot of inconvenience to the test and research of the entire system receiving / transmitting isolation

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