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Eddy current displacement sensor with display function

A technology of displacement sensor and display function, which is applied in the field of eddy current displacement measurement, can solve problems such as troublesome installation work and difficulty in determining the installation state of the sensor, and achieve the effect of convenient installation state

Inactive Publication Date: 2015-10-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, during the installation process of the eddy current displacement sensor, a multimeter or other testing instruments are used to measure the output of the front end device, and the installation work is more troublesome; in addition, it is difficult to determine the installation status of the sensor under the working state of the sensor

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  • Eddy current displacement sensor with display function
  • Eddy current displacement sensor with display function
  • Eddy current displacement sensor with display function

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Embodiment Construction

[0024] In order to describe the present invention in more detail, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, the eddy current displacement sensor with display function of the present invention includes an eddy current sensor probe 1 and a proximitor 2 with display function. The eddy current sensor probe 1 and the proximitor 2 with display function are connected by a coaxial cable 3.

[0026] Such as figure 2 As shown, the eddy current displacement sensor probe 1 in this embodiment is composed of a flat coil 11, a non-metallic sensor frame 12, a probe protective sleeve 13, a sensor fixing sleeve 14, a coaxial cable 15 and a displacement sensor connector 15; the flat coil 11 is located The front end of the non-metallic sensor frame 12 is protected by the probe protective sleeve 13. The flat coil 11 and the probe protective sleeve 13 are fix...

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Abstract

The present invention discloses an eddy current displacement sensor with a display function. The eddy current displacement sensor with the display function comprises an eddy current displacement sensor probe and a prepositive device, the prepositive device comprises a high-frequency oscillating circuit, a conversion and detection circuit, an output conversion circuit, a display switch, an offset processing and display driving circuit and a digital display unit, and the digital display unit can display the voltage offset quantity in the output of the prepositive device of the sensor to determine the installation position of the sensor. The eddy current displacement sensor with the display function of the present invention can detect the installation position of the sensor probe conveniently when the sensor is installed, debugged and works, thereby guaranteeing that the sensor probe is always at the ideal installation position, preventing the problem that the measurement result is not accurate due to the change of the installation position of the sensor probe, and improving the measurement precision and the reliability.

Description

Technical field [0001] The invention belongs to the technical field of eddy current displacement measurement, and specifically relates to an eddy current displacement sensor with a display function. Background technique [0002] The eddy current displacement sensor has many advantages such as non-contact, large measuring range, high sensitivity, simple structure, and not being affected by non-metallic materials, and has been widely used in the detection field. The eddy current displacement sensor is generally composed of a probe, a coaxial cable and a proximitor. These three parts can also be integrated in the housing of the probe to form an integrated structure. [0003] The working principle of the eddy current displacement sensor is that when the flat coil at the front of the sensor probe is excited by the high-frequency oscillation circuit, a high-frequency magnetic field is generated around the flat coil, and the eddy current is formed inside the measured conductor near the fl...

Claims

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Application Information

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IPC IPC(8): G01B7/02
Inventor 祝长生
Owner ZHEJIANG UNIV