Test system of impulse coupling efficiency of target under the action of laser

Abstract

The present invention provides a test system of an impulse coupling efficiency of a target under the action of a laser. The test system provided by the invention comprises: a compound pendulum device configured to dispose the target, a movable ruler device configured to detect the maximum swinging angle of the compound pendulum, a detection light source, an oscilloscope, a laser energy regulation unit and an energy meter. The compound pendulum device is composed of the compound pendulum and a compound pendulum support; and the movable ruler device is composed of a GHz photoelectric sensor, a one-dimensional translation stage and a horizontal slide rail. The impulse of a tested target is obtained under the laser irradiation through adoption of a photoelectric sensing unit and is configured to push the compound pendulum to reach the maximum swinging angle, the original impulse of the compound pendulum under the laser irradiation is obtained through adoption of the law of energy conservation, and the changing curve of the impulse coupling coefficient of the target is obtained through the dimensionless method of the impulse coupling efficiency when the laser single pulse energy is changed. The test system of an impulse coupling efficiency of a target under the action of a laser is applicable to the test of the impulse coupling efficiency of a target under the action of the laser in the target friction-free suspended state, and the precision measurement with a GHz dynamic response, a wide measurement range, a big swinging angle and high sensitivity is realized.

Description

technical field [0001] The invention belongs to the technical field of optical measurement, in particular to a testing system for measuring the impulse coupling efficiency of a laser acting on a target, which can be used for optical testing of the measuring impulse coupling efficiency of a laser acting on space debris, and for research on laser space debris cleaning technology. Background technique [0002] In the prior art, for the measurement of the impulse coupling efficiency obtained by the target under the action of the laser, the compound pendulum device is used to suspend the target, and the initial velocity or angular velocity of the target under the action of the laser is obtained by high-speed photography technology or beam deflection method, and then the entire compound pendulum The device integrates the velocity of all mass elements to obtain the initial momentum or angular momentum of the system. Another method is to measure the maximum deflection angle that the...

AI Technical Summary

Problems solved by technology

However, the disadvantages of using the guide rail method are obvious, especially for the application of the measurement of the impulse coupling coefficient obtained by space debris under the action of laser, because the space debris target is in a frictionless suspension state under the action of laser, any small recoil pressure generated by laser action effective momentum transfer to the target

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