Emulation test method of aerospace optical remote sensing machine focusing control circuit

A technology of optical remote sensor and control circuit, which is applied in the direction of electrical testing/monitoring, etc., to avoid unintuitiveness and errors, and to solve the effect of simulation detection problems

Inactive Publication Date: 2008-03-12
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

The previous cumbersome test methods

Method used

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  • Emulation test method of aerospace optical remote sensing machine focusing control circuit
  • Emulation test method of aerospace optical remote sensing machine focusing control circuit
  • Emulation test method of aerospace optical remote sensing machine focusing control circuit

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Embodiment Construction

[0017] The present invention is described in detail below in conjunction with examples, so that the purpose, characteristics and advantages of the present invention can be understood more deeply.

[0018] Referring to Figure 2, the basic principle of optical lens focusing control is composed of microprocessor, control module, optocoupler, power amplifier, stepping motor, encoder, RS422 serial interface circuit, transmission mechanism and optical lens. Among them, the microprocessor, control module, optocoupler and power amplifier circuit form the basic "focus control circuit"; the stepper motor, absolute photoelectric encoder and RS422 serial interface circuit form the "motor drive system"; the mechanical transmission mechanism and The optical lens assembly constitutes the "optical lens mechanical actuator".

[0019] The aerospace optical remote sensor payload control system issues commands and parameters to the optical lens focusing control system in real time according to th...

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Abstract

The present invention relates to a simulating detecting technology for focusing control circuit of remote sensors, in particular to a simulating detecting method for focusing control circuit of space optical remote sensor, which connects a closed loop system for focusing control simulating test with a tested focusing control circuit to detect impulse quantity, breadth, frequency and phase position signal of the focusing control circuit. Wherein, the closed loop system is composed of a voltage regulating circuit 3, an analog-to-digital converting circuit 5, a microcomputer system 6 and a serial communication circuit 7. The detecting procedures include: Regulating voltage of the control signal of the focusing control circuit, collecting and preprocessing signals of the focusing control circuit and detecting impulse quantity, breadth, frequency and phase position signal of the focusing control circuit, and displaying detected error information on screen of the microcomputer. The present invention can realize simulating test for focusing control circuit of space optical remote sensor on ground to meet demands for multifunction, long-time and quick detection.

Description

technical field [0001] The invention belongs to the field of industrial automation and relates to a simulation detection technology for a remote sensor focusing control circuit. Background technique [0002] The aerospace optical remote sensor payload control system issues commands and parameters to the optical lens focusing control system in real time according to the current orbit azimuth, altitude, speed and tilt angle information given by the satellite navigation system in real time, and the focusing control system receives , after identification and calculation processing, control the optical lens mechanical actuator of the same shaft system of the stepping motor to complete a focusing task. At the same time, read out the angle value on the absolute photoelectric encoder coaxially connected with the stepping motor, and feed back the actual focus position angle value of the current optical lens to the focus control circuit to form a composite control method combining clo...

Claims

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Application Information

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IPC IPC(8): G05B23/02
Inventor 胡君吴伟平
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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