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System based on array-type flexible electric eddy sensor for monitoring gap between spherical layers

An eddy current sensor and flexible array technology, applied in the field of data processing, can solve problems such as slow real-time monitoring, achieve effective solutions, improve anti-interference ability, and solve data processing problems

Inactive Publication Date: 2004-07-07
TSINGHUA UNIV
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Problems solved by technology

[0009] The purpose of the present invention is to solve the problem of real-time monitoring of the gap between two inner and outer spherical surfaces in slow relative motion, and propose a monitoring system for the gap between spherical layers based on a flexible array type eddy current sensor. The eddy current displacement sensor attaches the coil array of the sensor probe to the non-metallic spherical surface, measures the gap between each measuring point position and the metal spherical surface, and then can obtain the spherical surface of any point on the spherical surface by processing the measured value data of these determined points gap, so as to realize the real-time monitoring of the relative position of the two balls moving slowly relative to each other

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  • System based on array-type flexible electric eddy sensor for monitoring gap between spherical layers
  • System based on array-type flexible electric eddy sensor for monitoring gap between spherical layers
  • System based on array-type flexible electric eddy sensor for monitoring gap between spherical layers

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Embodiment Construction

[0028] A spherical interlayer gap monitoring system based on a flexible array type eddy current sensor designed by the present invention is described in detail in conjunction with the drawings and embodiments as follows:

[0029] The composition of the spherical interlayer gap monitoring system based on the flexible array type eddy current sensor of the present invention is as follows: image 3 As shown, it is mainly composed of three parts: sensor probe, front circuit, computer data acquisition and processing unit. Among them, the sensor probe includes a sensitive coil array made on a flexible substrate material, and each coil signal line and its ground line are connected to form a common A densely packed long cable composed of ground wires; the front circuit includes a multi-channel analog gate circuit composed of a decoding circuit and an analog switch, a sensor signal conversion and conditioning circuit connected to it, and a power supply module that provides operating voltag...

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Abstract

A system based on array-type flexible electric eddy sensor for real-time monitoring the gap between two slowly moving spherical layers is composed of sensor array coil, front-end circuit and computerized data acquisition and processing unit including a microcomputer and relative software. The said front-end circuit consists of multiplexing analog gating circuit composed of decoder and analog switch, and signal converter. Its advantages include high anti-interference power and high accuracy.

Description

technical field [0001] The invention belongs to the technical field of precision testing, and in particular relates to a precision measurement method and a data processing method for the interlayer gap between two inner and outer spherical surfaces. Background technique [0002] With the development of science and technology and production, the shapes of key parts of some major equipment are becoming more and more complex, and the requirements for processing and assembly positioning accuracy are getting higher and higher, and the requirements for measurement are also higher. Parts with thin-walled surfaces of revolution are widely used in national defense and various daily life products, and the processing, measurement and monitoring of these parts are often limited by special conditions such as the size of the space structure and the medium of the material to be measured. Increased difficulty. [0003] The detection and monitoring of the interlayer gap of the spherical sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/14G01N27/90
Inventor 丁天怀陈祥林朱惠忠黄毅平
Owner TSINGHUA UNIV
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