An electrical control system for laser tracking measurement

Abstract

The invention discloses an electrical control system for laser tracking measurement. The system comprises a first circuit breaker, a relay, a servo motor control module, a PMAC control module, a horizontal limiting switch, a vertical limiting switch, a hand wheel, a photoelectric position sensor module, namely, a PSD module, a direct current power supply module and a second circuit breaker; duringthe measuring process of a laser tracking system, the voltage generated when the the position of a light spot on PSD changes enters into a PMAC control card, received voltage variation is converted into a control signal by the PMAC control card and transmitted to a servo motor driving device, so that tracking is conducted on the light spot by driving a servo motor to complete tracking measurement. During the tracking process, if the servo motor exceeds the operating range in a certain direction, a signal is transmitted to the PMAC control module by the limiting switch in the direction, and the servo motor driving device is controlled by the PMAC control module to stop the operation of the servo motor to prevent the damage of the laser tracking system. By means of the electrical control system, closed loop control of the servo motor is achieved to ensure the normal measuring of the laser tracking system.

Description

technical field [0001] The invention relates to an electrical control system, in particular to an electrical control system for laser tracking measurement. Background technique [0002] In recent years, with the continuous development of industrial production, various industries have put forward urgent requirements for measurement technology and measurement tools. In this regard, the demand for large-scale and high-precision measurement is particularly strong. The laser tracking measurement system has the advantages of large measurement range, good measurement dynamic performance, and on-site real-time measurement. It is widely used in aviation, aerospace, shipbuilding, automobile industry, reverse engineering areas are receiving increasing attention. [0003] Laser tracker and laser tracker are two measurement tools based on the laser tracking measurement system. The laser tracker belongs to passive tracking, which passively tracks the target mirror for measurement. The ...

AI Technical Summary

Problems solved by technology

However, at present, the research and development foundation of high-end measurement instruments in my country is very weak, especially in the field of large-scale and high-precision three-dimensional space measurement equipment, which is still only in the stage of introduction, application and digestion

At present, domestic research on laser tracking and measurement systems is mostly still in the stage of experimental research and trial production. Compared with foreign mainstream laser trackers, the main performance indicators such as the overall design of the instrument, precise aiming and positioning, and system dynamic tracking accuracy still have a certain gap.

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