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Deep sea pressure, flow speed and direction sensor and use thereof

A measurement method and flow velocity technology, which are applied in the direction of fluid velocity measurement, elastic deformation meter-type fluid pressure measurement, velocity/acceleration/impact measurement, etc., which can solve the difficulty in obtaining reliable pressure and water depth signals for underwater robots or submersibles , Inability to measure the speed of underwater robots or submersibles, reducing the accuracy of water depth measurement, etc., to achieve the effect of easy sealing, low cost and simple structure

Inactive Publication Date: 2008-02-06
HEFEI UNIV OF TECH
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Problems solved by technology

The working principle of the current pressure sensor is difficult to meet the requirements of deep sea conditions. There is no domestic pressure sensor product that can be directly used in deep sea. Measuring the flow rate of seawater, the speed of underwater robots or submersibles, it is difficult to eliminate the influence of water flow on pressure, which reduces the accuracy of water depth measurement, and it is difficult to ensure that underwater robots or submersibles obtain reliable pressure and water depth signals during motion

Method used

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  • Deep sea pressure, flow speed and direction sensor and use thereof

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Embodiment Construction

[0024] As a pressure sensor and its application in pressure measurement.

[0025] Referring to Fig. 1 and Fig. 2, a columnar support 1 is provided in this embodiment, and an annular shell 2 located on the outer ring of the columnar support 1 is provided, and an elastic beam 3 as a strain gauge carrier is supported between the shell 2 and the support 1 Between them, the four elastic beams 3 are located on a plane perpendicular to the axis of the support, and are arranged symmetrically in pairs with the axis of the support as a cross (as shown in Figure 2).

[0026] The disc-shaped upper end cover 5 fixedly connected to the top of the support, the disc-shaped lower end cover 6 located below the support, the upper bellows 7 connected between the upper end cover 5 and the upper edge of the housing 2, and the The lower bellows 8 between the lower edge of the housing 2 and the lower end cover 6 constitutes a closed oil chamber, in which insulating oil is injected, and the output of ...

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Abstract

A transducer of pressure , flow speed and flow direction at deep sea features having column formed seat and its ring shell , setting elastic beam support used as strain plate carrier between seat and shell , setting four said beams on one plane vertical to seat axis and arranging them two by two symmetrically in cross based on seat axis , using top and bottom end covers as well as bellows to form closed oil cavity , using strain plate to output collected signal and solid connecting gyro-rotor with seat axis as rotation centre at centre of top end cover.

Description

Technical field: [0001] The present invention relates to sensing technology for marine measurement, in particular to measurement of deep sea pressure and flow velocity and direction of water flow, pressure and water depth measurement to eliminate the influence of water flow, acquisition of pressure information, flow velocity and direction information, and underwater robot or submersible movement. Submerged speed information. Background technique: [0002] Advanced underwater robots or submersibles are inseparable from sensors with reliable performance. Deep-sea pressure and flow velocity sensors are basic sensors that cannot be ignored by robots or submersibles when they go to the deep sea. The working principle of the current pressure sensor is difficult to meet the requirements of deep sea conditions. There is no domestic pressure sensor product that can be directly used in deep sea. Measuring the flow rate of seawater and the speed of underwater robots or submersibles is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L7/06G01P5/02G01P13/02G01D21/02
Inventor 王勇刘正士葛运建陆益民何凯郑红梅
Owner HEFEI UNIV OF TECH
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