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Magnetic rotor type material detection device and method

A material detection, rotor-type technology, used in measuring devices, liquid level indicators for physical variable measurement, liquid/fluid solid measurement, etc., can solve the problems of easy damage, low sensitivity, poor safety, etc. The effect of high sensitivity and simple structure

Active Publication Date: 2021-08-03
张建宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a magnetic rotor type material detection device and method to solve the problems of low sensitivity, easy damage and poor safety of the existing electromagnetic deliberation type and resistance rotation type material detection devices

Method used

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  • Magnetic rotor type material detection device and method
  • Magnetic rotor type material detection device and method
  • Magnetic rotor type material detection device and method

Examples

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Effect test

example 1

[0059] Such as Figure 5-1 As shown, the magnetic rotor 1 is a straight rod, the shaft hole 12 is set in the middle of the rod, both ends are permanent magnets, and the signal receiver 4 is a magnetic sensor. Whenever the magnetic sensor is triggered twice, the magnetic rotor 1 rotates once.

example 2

[0061] Such as Figure 5-2 As shown, the magnetic rotor 1 is a cross-shaped rod, the shaft hole 12 is set in the middle of the rod, the four ends are permanent magnets, and the signal receiver 4 is a magnetic sensor. Whenever the magnetic sensor is triggered four times, the magnetic rotor 1 rotates once.

example 3

[0063] Such as Figure 5-3 As shown, the magnetic rotor 1 is a disc with 4 permanent magnets evenly distributed on the outer edge of the disc, the signal transmitter 7 is a laser transmitter, and the signal receiver 4 is a laser receiver. Whenever the laser receiver is triggered 4 times, The magnetic rotor 1 rotates once.

[0064] Although the magnetic rotor 1 can both rotate and swing, if only one magnetic field receptor 5 is provided, the magnetic rotor 1 may have a motion dead point when it rotates to the farthest distance between the magnetic field receptor 5 and the magnetic field generator, and then the Magnetic rotor 1 is stuck. In order to avoid the above situation, in the embodiment of the present invention, the mounting bracket 2 is provided with a limit rod 9, which can make the magnetic rotor 1 only swing but not rotate. When the magnetic rotor 1 moves towards the dead point position in the above situation, the limit The position rod 9 can prevent the magnetic ro...

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Abstract

The invention relates to a magnetic rotor type material detection device and method, which belongs to the field of material detection and solves the problems of low sensitivity, easy damage and poor safety of the existing material detection device. The invention comprises: a mounting seat, a mounting frame, a magnetic rotor and a magnetic field generator; the mounting frame and the magnetic field generator are installed on the mounting seat; the magnetic rotor is rotatably mounted on the mounting frame; the magnetic rotor is provided with a magnetic field sensor and a signal transmitter The magnetic field generator can generate a periodically changing magnetic field, and can drive the magnetic rotor to swing and / or rotate periodically through a magnetic field sensor; a signal receiver is provided on the mounting frame, and whenever the magnetic rotor rotates and / or swings to the trigger position , the signal receiver receives the monitoring signal sent by the signal transmitter, outputs the monitoring result, and records the interval time between receiving the detection signal. The invention has the advantages of high sensitivity, accuracy and reliability, wide application range, flexible and convenient installation and use, maintenance-free, long service life and the like.

Description

technical field [0001] The invention relates to the technical field of material detection, in particular to a magnetic rotor type material detection device and method. Background technique [0002] There are many types of material level detection devices on the market. The common anti-rotary material level switch can be installed at any angle, the detection position can be long or short, and the material particle size is well adaptable. However, after working for a long time, the mechanical parts such as the motor shaft are easy to Abrasion, corrosion and seizure, especially in humid and salt spray environment, may even cause damage to the motor and reduce its service life. There is a type of electromagnetic deliberation type object detection device that uses the principle of electromagnetic induction. The electromagnetic force pushes the magnetic pendulum outward, and when it swings back, it strikes the electromagnetic coil to generate an induced voltage to detect whether t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/22
CPCG01F23/226
Inventor 孙健孙良运高秀俊
Owner 张建宇
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