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Angle position error detecting and compensating device of round angle position sensor and compensating method

A technology of error detection and compensation device, applied in the direction of electronic commutator, etc., to achieve the effect of improving angle measurement accuracy and system performance

Inactive Publication Date: 2014-01-08
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Claims
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Problems solved by technology

Therefore, the potential can only be tapped in the existing inductive synchros and resolvers to meet the increasingly higher accuracy requirements for angular position sensors

Method used

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  • Angle position error detecting and compensating device of round angle position sensor and compensating method
  • Angle position error detecting and compensating device of round angle position sensor and compensating method
  • Angle position error detecting and compensating device of round angle position sensor and compensating method

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Embodiment Construction

[0030] According to the content of the invention, this embodiment constructs a circular angular position sensor angular position error detection and error compensation device, as shown in the attached figure 1 shown. The specific parameters and design of each part are as follows:

[0031] Photoelectric encoder 1: Reinshaw’s incremental photoelectric code disk circular grating is RESM2U-SA550, the read head is T2600-3M, the subdivision head is TI0400A12A, the diameter is 550mm, and the system accuracy is 1”;

[0032] Permanent magnet synchronous motor 2: RBE02110B AC permanent magnet synchronous motor from kollmorgen company is used, the continuous stall torque is 0.952Nm, the peak torque is 2.55Nm, and the mass is 0.585kg;

[0033] Turntable control module 3: use the DSP chip (TMS320F2812) and FPGA chip to form the core control module, control the rotation of the permanent magnet synchronous motor 2, and forward the angular position data of the photoelectric encoder to the co...

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Abstract

The invention discloses an angle position error detecting and compensating device of a round angle position sensor and a compensating method, which are applied to error detection and error compensation of an angle position when a round angle sensor is arranged. The compensating method comprises the following steps that a permanent magnet synchronous motor drives the angle position sensor to be detected to uniformly rotate after an angle position sensor to be detected is installed; angle position data generated by a photoelectric encoder and the angle position sensor to be detected are collected; after the rotation of one mechanical period is finished, an error curve and the maximum error of the angle position sensor to be detected are obtained through computation, and the mechanical installation of the angle position sensor to be detected is provided with evidence; after the optimal installation is finished, the error curve of the angle position sensor to be detected is obtained again, the fitting on the error curve is finished by utilizing a polynomial fitting process, and the compensation to the angle position sensor to be detected can be carried out according to a polynomial obtained through fitting, so that the angle detection error is reduced, and the performance of a system is further improved. According to the compensation method disclosed by the invention, the precision of the mechanical installation of the angle position sensor to be detected is detected, and the angle detection precision is further improved in an error compensation manner.

Description

Technical field: [0001] The invention relates to the field of information collection and error compensation, in particular to a circular angular position sensor error detection device and an angular position error compensation method. Background technique: [0002] The induction synchronizer is a device that converts linear displacement and angular displacement into electrical signals by using electromagnetic principles. According to the application, the induction synchronizer can be divided into two types: linear type and rotary type, which are used to measure linear displacement and angular displacement respectively. Inductive synchronizers are widely used in high-precision servo turntables, positioning and tracking of radar antennas, artillery and radio telescopes, precision CNC machine tools, and high-precision position detection systems. [0003] A resolver is an electromagnetic sensor, also known as a synchronous resolver. It is a small AC motor for measuring angles, ...

Claims

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Application Information

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IPC IPC(8): H02P6/16
Inventor 王晟玮王跃明庄晓琼鲍智康郎均慰肖喜中
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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