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Intelligent analog quantity inductive proximity sensor

A proximity sensor and analog technology, applied in the field of proximity sensors, can solve the problems of low measurement accuracy

Inactive Publication Date: 2020-05-29
长沙全程数字机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides an intelligent analog inductive proximity sensor to solve the problem of low measurement accuracy when the current inductive proximity sensor detects distance

Method used

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0024] Such as figure 1 As shown, the existing inductive proximity sensor includes an oscillator 100, a detector 200 and an amplified output circuit 300. The oscillator 100 generates an alternating electromagnetic field on the sensor detection surface. When a metal object approaches the sensor detection surface, the detected metal object The...

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Abstract

The invention discloses an intelligent analog quantity inductance type proximity sensor. The sensor comprises an oscillator, a detector, an amplification output circuit and an MCU which are electrically connected in sequence, the MCU is provided with a database, a correction module, an analog quantity output module and a digital quantity output module, an input end of the database is connected with an output end of the amplification output circuit, and an output end of the database is connected with an input end of the correction module; and an output end of the correction module is connectedwith the analog quantity output module or the digital quantity output module. The proximity sensor provided by the invention is a digital intelligent proximity sensor with the MCU, and the MCU is usedfor correcting the voltage value output by the amplification output circuit so as to adapt to the measurement of various metal materials such that consistent data is output when different metals aremeasured, and higher precision and linearity are obtained.

Description

technical field [0001] The present application relates to the technical field of proximity sensors, in particular to an intelligent analog inductive proximity sensor. Background technique [0002] The inductive proximity sensor belongs to a position sensor with switching output. It is composed of an LC high-frequency oscillator and an amplification processing circuit. When a metal object approaches the oscillating induction head that can generate an electromagnetic field, an eddy current is generated inside the object. This The eddy current reacts on the proximity sensor, which attenuates the vibration ability of the proximity sensor, and the parameters of the internal circuit change, thereby identifying whether there is a metal object approaching, and then controlling the switch to be on or off. [0003] At present, when the inductive proximity sensor needs to output analog detection distance, since the accuracy and linearity are not enough for industrial measurement requir...

Claims

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Application Information

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IPC IPC(8): G01D5/20G01V3/10
CPCG01D5/20G01V3/10
Inventor 尚超
Owner 长沙全程数字机电科技有限公司
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