Resonant tunnelling bionic vector underwaster sensor

Abstract

A vector underwater sound transducer of resonant tunneling bionic type is prepared as applying semiconductor etching technique to each bottom-middle part of semiconductor substrate to be structure of cross cantilever beam, fixing micro cylindrical body at center of cross cantilever beam and setting resonant tunneling diode separately at end portions of four beams on cross cantilever beam.

Description

technical field [0001] The invention relates to an underwater acoustic sensor, in particular to a resonant tunneling bionic vector underwater acoustic sensor based on a resonant tunneling diode (RTD) with high sensitivity, low power consumption, small volume and high conversion efficiency. Background technique [0002] Underwater acoustic sensors are an important part of sonar detection. From the perspective of the development history of underwater acoustics, every step of the development of underwater acoustic applications is inseparable from the development of underwater acoustic sensor technology. With the rapid advancement of science and technology, the development of underwater acoustic sensors is extremely active and rapid. For example, in the military field, it detects targets such as ships and torpedoes that use stealth technology; Hydroacoustic sensors are used in many fields such as marine exploration, fishery production, and navigation security. [0003] At prese...

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Problems solved by technology

[0006] In order to solve the problem that the improvement of the sensitivity and resolution of existing underwater acoustic sensors has reached the limit state of detection, thus limiting the further improvement of detec...

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