Underwater bionic side line tactile sensor
A tactile sensor and lateral line technology, applied in instruments, measuring devices, measuring fluid pressure through electromagnetic components, etc., can solve the problems of limited measurement accuracy, inability to sense weak fluctuations in the flow field, pressure sensors that cannot adapt to underwater environments, etc., and achieve high Dynamic pressure measurement accuracy and the effect of improving environmental adaptability
Pending Publication Date: 2022-01-14
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
[0003] The most intuitive way to measure the flow field signal is to measure the environmental pressure through the pressure sensor. The current pressure sensor mainly uses the principles of capacitive and piezoelectric materials, and mainly measures the static pressure. For example, in terms of range, since the operating depth of AUV is usually a large range, the range of the sensor is often very large, which limits the measurement accuracy and cannot sense the weak fluctuations in the flow field; High-precision pressure sensors cannot adapt to deep underwater environments
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[0027] The invention provides an underwater bionic lateral line tactile sensor. According to the principle of fish lateral line nerve mound, the pressure compensation method is used to realize the balance of the internal and external pressure of the sensor, which can adapt to different environmental pressures and can always maintain a high dynamic pressure. Measurement accuracy; use the magnetic fluid power generation method to convert the pressure fluctuation signal of the flow field environment into an electrical signal, so as to realize the perception of the change of the flow field environment, and help underwater vehicles such as AUV to adjust power distribution and motion attitude in real time. Improve its ability to adapt to the environment.
[0028] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods...
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Abstract
The invention provides an underwater bionic side line tactile sensor, and belongs to the technical field of underwater robots. A colloid bag and a compensator are filled with magnetic liquid, the balance of internal and external pressure is realized, the fluctuation of surrounding flow field pressure signals acts on the colloid bag to temporarily break the balance, the magnetic liquid generates weak current in an inductance tube, the magnetic liquid generates weak current in the inductance tube, an array composed of a plurality of perceptrons is used for measuring environment signals, and environment sensing is achieved. The beneficial effects of the sensor are that the sensor can adapt to different environmental pressures by adopting a pressure compensation method according to the principle of fish lateral neuromasts, and can always keep good dynamic pressure measurement precision; and a magnetohydrodynamic power generation method is utilized to convert a flow field environment pressure fluctuation signal into an electric signal, so that sensing of flow field environment change can be realized, real-time adjustment of power distribution and motion attitude of an underwater vehicle such as an AUV and the like is facilitated, and the environment self-adaptive capability of the underwater vehicle is improved.
Description
technical field [0001] The invention relates to the technical field of underwater robots, in particular to an underwater bionic lateral line tactile sensor. Background technique [0002] Underwater robot is a kind of special robot used for underwater survey and operation. It is more and more widely used in the development of marine resources and military applications. Among them, the miniaturized AUV has gradually attracted attention due to its small size, low cost, and easy concealment. However, Miniaturized AUV also introduces the problems of being susceptible to interference from complex flow field environments and low energy carrying capacity. In order to solve the above problems, it is first necessary to perceive and evaluate the flow field environment as the basis for adjusting the AUV's adaptive attitude. Research in the field of biology has found that fish have a tactile sensory organ of the lateral line system, which is composed of superficial neuromasts and tubula...
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IPC IPC(8): G01L9/16G01L19/00
CPCG01L9/16G01L19/00
Inventor 林兴华张峻霞王晓鸣张敏革李慧
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY