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Hall displacement sensor magnetic steel detection device

A displacement sensor and detection device technology, applied in the direction of magnetic performance measurement, measurement using digital measurement technology, etc., can solve the problems of high work intensity, cumbersome measurement operation, low efficiency, etc., to reduce labor intensity, simplify the detection process, improve The effect of work efficiency

Active Publication Date: 2014-10-08
WUXI LONGSHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the Tesla meter is usually used for the detection of magnetic steel, which has the disadvantages of cumbersome measurement operations, high work intensity, and low efficiency.

Method used

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  • Hall displacement sensor magnetic steel detection device
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  • Hall displacement sensor magnetic steel detection device

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] A Hall displacement sensor magnetic steel detection device, its structure is as follows figure 1 shown. Including the casing 1 and the back cover 2, the four top corners of the back cover are respectively provided with a mounting hole 11, and the inner end surface of the top plate of the casing is fixedly provided with four fixing posts 8, and the fixing posts are matched with the mounting holes for fixing the back cover Fastened to the bottom of the case. In this embodiment, the shell is a square shell with a bottom opening.

[0017] The upper end face of the housing top plate is provided with 5V digital voltmeter one 3, 5V digital voltmeter two 4, changeover switch 7 and magnetic steel test hole 5, as figure 2 shown. A circuit board 10 is fixedly arranged on the inner end face of the housing top plate corresponding to th...

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Abstract

The invention discloses a Hall displacement sensor magnetic steel detection device. The Hall displacement sensor magnetic steel detection device comprises an outer shell and a back cover which are assembled. A first digital voltmeter of 5V, a second digital voltmeter of 5V, a change-over switch and a magnetic steel measurement hole are arranged on the upper end face of an outer shell top plate. The portion of the inner end face of the outer shell top plate, corresponding to the magnetic steel measurement hole, is fixedly provided with a circuit board. One end face of the circuit board, facing the magnetic steel measurement hole, is welded with three Hall elements, the three Hall elements respectively correspond to the two ends and the middle portion of a magnetic steel, the Hall element in the middle portion is in electric connection with the second digital voltmeter of 5V, and the Hall elements at two ends are in electric connection with the first digital voltmeter of 5V through the change-over switch. The back cover is placed on the end face inside the outer shell and provided with a switch power source. By means of the Hall displacement sensor magnetic steel detection device, detection procedures are simplified, the detection procedures are convenient and quick, labor intensity is reduced, and work efficiency is improved.

Description

technical field [0001] The invention relates to a detection device, in particular to a device for detecting the magnetic steel of a Hall displacement sensor. Background technique [0002] In the automobile engine exhaust gas recirculation system (EGR system), the EGR valve plays the role of regulating the flow of recirculated exhaust gas. The main function of the EGR valve is to change the magnitude of the magnetic field force by changing the current of the coil of the vacuum electromagnetic regulator that controls the vacuum degree of the EGR valve to achieve different vacuum degrees, and further adjust the opening of the EGR valve inlet to adjust the exhaust gas flow. The exhaust gas and fresh air are mixed in a certain proportion and then returned to the cylinder for recirculation, so as to reduce the combustion temperature and combustion speed in the cylinder, and further reduce the emission of nitrogen oxides. The Hall-type displacement sensor is a sensor installed on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/12G01R19/25
Inventor 张华
Owner WUXI LONGSHENG TECH