Large-stroke and adjustable multichannel eddy current micro-displacement sensor parallel calibration device

A technology of micro-displacement sensor and calibration device, applied in the field of detection, can solve the problems of high complexity and cost, achieve low cost and improve work efficiency

Pending Publication Date: 2022-05-20
重庆国科医创科技发展有限公司 +1
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  • Abstract
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Problems solved by technology

For some eddy current micro-displacement sensors with low index requirements, the complexity and cost of this method are high, so there is an urgent need for a simple calibration device that can meet the n

Method used

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  • Large-stroke and adjustable multichannel eddy current micro-displacement sensor parallel calibration device
  • Large-stroke and adjustable multichannel eddy current micro-displacement sensor parallel calibration device
  • Large-stroke and adjustable multichannel eddy current micro-displacement sensor parallel calibration device

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0024] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0025] In one embodiment, combined with figure 1 , provides a large-stroke and adjustable parallel calibration device for multi-channel eddy current micro-displacement sensors, including a substrate 1,...

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Abstract

The invention discloses a large-stroke and adjustable multi-channel eddy current micro-displacement sensor parallel calibration device, which is characterized in that a probe support frame for mounting a sensor probe and a translation platform support frame for mounting a translation platform are fixedly arranged on a substrate, an inside micrometer is fixed on a micrometer support frame, a head of the inside micrometer is in contact with a ball on the side surface of the translation platform, and the inside micrometer is fixed on the translation platform support frame; the inside micrometer, the ruler head and the tension spring in the translation table are rotated to drive the translation table to move, so that the measured object is driven to horizontally move, the distance between the measured object and the sensor probe is changed, the variable quantity is read through the inside micrometer, and the output information of the sensor is synchronously recorded; and repeating the process to obtain multiple groups of sensor input and output signals, and obtaining a calibration result of the eddy current micro-displacement sensor through data fitting. According to the invention, the offset distance and the measurement stroke can be adjusted according to application requirements, and calibration of eddy current micro-displacement sensors of various specifications can be met. And a plurality of sensor probe supporting frames can be arranged, so that parallel calibration of the multi-channel sensor is realized, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of detection, in particular to a large-stroke and adjustable parallel calibration device for multi-channel eddy current micro-displacement sensors. Background technique [0002] As a non-contact, high-precision micro-displacement measuring element, the eddy current micro-displacement sensor is widely used in displacement, vibration and The measurement of physical quantities such as , rotational speed, metal film thickness, geometric dimensions of metal components, and surface roughness plays an important role in industrial production, aviation industry, nuclear industry, petrochemical industry, safety testing and other fields. [0003] When the eddy current micro-displacement sensor is applied, the offset distance needs to be set first, and the measurement stroke should be set on the basis of the offset distance. Different application occasions have different requirements for the measurement stroke of the e...

Claims

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Application Information

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IPC IPC(8): G01B7/02
CPCG01B7/02Y02E30/30
Inventor 徐正平刘祎冯勇通李原
Owner 重庆国科医创科技发展有限公司
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