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Sensor integrating magnetic pole location and output displacement

A sensor and displacement technology, which is applied in the field of measurement and control, can solve problems such as occupation, large space volume, installation, and cumbersome operation, and achieve the effects of easy use, space saving, and improved installation accuracy and parameter measurement accuracy

Inactive Publication Date: 2013-05-08
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. No position sensor measurement method
[0005] In the traditional test method, two kinds of sensors are usually used to measure the magnetic pole positioning and output displacement respectively, but using two kinds of sensors is often cumbersome in installation and operation, and takes up a large space volume

Method used

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  • Sensor integrating magnetic pole location and output displacement

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0014] An integrated sensor for magnetic pole positioning and output displacement, comprising: a resolver 1, a reducer 2, and a potentiometer 3; the resolver 1 is used to measure the angular position of the motor rotor, the reducer 2 is directly connected to the motor rotor 5, and the potentiometer 3 Through the connection of the coaxial device 4, the rotation of multiple turns of the motor in the full stroke is decelerated into the rotation of the potentiometer 3 in a single turn.

[0015] like figure 1 The shown installation method adopts the combination form of resolver 1 , miniature reducer 2 and precision single-turn potentiometer 3 .

[0016] With the help of the mechanical deceleration device, the multi-turn rotation of the motor rotor is reduced to a single turn (select the reduction ratio of the mechanical deceleration device so that the ro...

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Abstract

The invention belongs to the measurement and control technology, in particular to a sensor integrating magnetic pole location and output displacement, and aims at integrating a magnetic pole location sensor and an output displacement sensor according to a design. The sensor integrating the magnetic pole location and the output displacement comprises a rotary transformer (1), a reducer (2) and a potentiometer (3). The rotary transformer (1) is used for measuring the angular position of a motor rotor (5). The reducer (2) is directly connected with the motor rotor (5) and is connected with the potentiometer (3) through a coaxial device (4). The sensor integrating the magnetic pole location and the output displacement has the advantages that the motor rotor is measured, and at the same time, the detection of the position of the motor rotor and the detection of the output displacement of an actuator are matched ingeniously so that the magnetic pole location sensor and the output displacement sensor are integrated according to the design. Besides, the sensor integrating the magnetic pole location and the output displacement is in a centralized mode in installation space and is simple and convenient to install and use, and therefore the installation space is saved, error terms which need controlling in the installation process are reduced, and system installation accuracy and parameter measurement accuracy can be improved easily.

Description

technical field [0001] The invention belongs to the measurement and control technology, in particular to a magnetic pole positioning and output displacement integrated sensor. Background technique [0002] In the electric servo system, the three-loop control method of position, speed and current is usually adopted, which requires the system to meet two necessary conditions: first, real-time detection of the position of the motor rotor to realize electronic commutation; second, detection of the output displacement, Realize position closed loop. [0003] Usually the method of measuring the rotor position is as follows: 1. There is a position sensor measurement method. This is a displacement test method often used in DC brushless electric servo systems. There are many kinds of position sensors used, such as Hall sensors, photoelectric encoders, and resolvers. 2. No position sensor measurement method. This technology is applied in many ASICs of brushless DC motors, and it mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/00G01B7/30G01B7/02
Inventor 龙海峰黄玉平郑继贵
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS