Angular position feedback system for automatically testing step angle precision and testing method

An automatic test and feedback system technology, which is applied in the field of angular position feedback system and automatic test step angle accuracy, can solve the problems of inability to realize high-precision test and low accuracy of angle encoder, and achieve improved test efficiency, simple set-up and application broad effect

Pending Publication Date: 2021-03-16
XIAN MICROMOTOR RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the accuracy of the angle encoder is not high, and it is impossible to achieve high-precision testing

Method used

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  • Angular position feedback system for automatically testing step angle precision and testing method
  • Angular position feedback system for automatically testing step angle precision and testing method
  • Angular position feedback system for automatically testing step angle precision and testing method

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0026] Such as figure 1 As shown, the angular position feedback system for automatically testing step angle accuracy of the present invention includes an extended stepping motor controller, a shaft coupling, an angular position sensor, an AC signal power supply, an angular position indicator, a host computer and a printer .

[0027] The extended stepper motor controller is used to drive the stepper motor to be tested;

[0028] The angular position sensor is a self-adjusting angle transmitter or a multi-stage rotary transformer. The angular position sensor is used for coaxial connection with the stepper motor through a coupling, and synchronously outputs electrical signal data corresponding to the step angle of the stepper motor.

[0029] The angular position indicator is electrically connec...

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Abstract

The invention relates to an angular position feedback system for automatically testing step angle precision and a testing method. The angular position feedback system comprises an extended stepping motor controller, a coupling, an angular position sensor, an angular position indicator and an upper computer, wherein the extended stepping motor controller is used for controlling stepping drive of astepping motor, the angular position sensor is a synchro transmitter or a multistage rotary transformer, and the angular position sensor is used for being coaxially connected with the stepping motor through the coupling, synchronously outputting electric signal data corresponding to a step angle and sending the electric signal data to the angular position indicator; the angular position indicatoris used for converting the electric signal data acquired by the angular position sensor into actual step angle data and sending the actual step angle data to the upper computer; and the upper computerreceives and records the actual step angle data sent by the angular position indicator, compares the actual step angle data with the set step angle data of the stepping motor to be measured, and calculates to obtain the step angle precision. According to the invention, high-precision testing of the step angle precision can be realized, and the requirement of a user on step angle testing is met.

Description

technical field [0001] The invention belongs to the technical field of micro-motor testing, in particular to an angular position feedback system and a testing method for automatically testing step angle accuracy. Background technique [0002] Stepping motors are widely used in automatic control system devices as actuators. The step angle of the motor means that the control system sends a pulse signal, and the stepping motor will move forward one step. The angle at which the rotor rotates at this time is called the step distance. horn. And the error of the step angle will not accumulate for a long time, it only corresponds to the number of input pulses, and the composition structure is relatively simple. It can form an open-loop control system with a certain precision and a closed-loop system when higher precision is required. [0003] Step angle accuracy is an important indicator of stepping motors. Its principle is to measure the angle of each pulse, mark the initial posit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/22G01R31/34
CPCG01B21/22G01R31/34
Inventor 郑洁姜文喜李峰陈军白宜君李栋
Owner XIAN MICROMOTOR RES INST
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