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Iron core part and iron core connecting rod assembly and displacement sensor

A technology of displacement sensor and iron core connecting rod, which is applied in the field of sensors, can solve the problems of straightness error, large circular runout tolerance, etc., and achieve the effect of high measurement accuracy

Pending Publication Date: 2018-09-21
MEASUREMENT SPECIALTIES CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an iron core part to solve the problems of the straightness error and large circular runout tolerance of the iron core connecting rod assembly existing in the prior art

Method used

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  • Iron core part and iron core connecting rod assembly and displacement sensor
  • Iron core part and iron core connecting rod assembly and displacement sensor
  • Iron core part and iron core connecting rod assembly and displacement sensor

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Embodiment Construction

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention 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 invention, not to limit the present invention.

[0042] It should be noted that when an element is referred to as being "fixed" or "disposed on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0043] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or p...

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Abstract

The invention relates to the technical field of sensors, and provides an iron core part for a displacement sensor. The iron core part comprises an axially extending body having a circumferential outerside surface and a magnetic conductive layer which is arranged on the circumferential outer side surface of the body and is integrally connected with the circumferential outer side surface, and the magnetic conductive layer is used for extending into the displacement sensor for displacement measurement; the body and the magnetic conductive layer are made of different materials; the invention further provides an iron core connecting rod assembly and the displacement sensor including the iron core part; the connecting rod assembly has small straightness error and circular run-out tolerance, errors in displacement measurement are reduced, measurement accuracy is improved, and the magnetic conductive layer is not easily peeled off.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to an iron core part, an iron core connecting rod assembly and a displacement sensor. Background technique [0002] The connecting rod assembly of the traditional displacement sensor is connected by an iron-nickel alloy magnetic layer and an austenitic stainless steel rod by welding or bonding. The disadvantages of this are 1. The straightness error and circular runout of the connecting rod assembly The tolerance (circular runout tolerance refers to the variation of the measured element relative to the reference axis in a certain measurement section) is relatively large. The iron-nickel alloy magnetic layer and the austenitic stainless steel bar are both cylinders, and the two should be coaxial , but in the actual processing process, due to the limitation of processing accuracy, the axis of the iron-nickel alloy magnetic layer has a certain offset or a certain inclination angle rela...

Claims

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Application Information

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IPC IPC(8): G01B7/02
CPCG01B7/02
Inventor 钟金云袁庆国
Owner MEASUREMENT SPECIALTIES CHINA