Laser Time Mark Signal Generator for High Speed ​​Photography

Abstract

The invention discloses a laser time scale signal generator for high-speed photography, which belongs to an optical transient test supporting device. The laser time scale signal generator includes an acousto-optic modulation component and a signal light transmission component; the acousto-optic modulation component It includes at least a continuous laser and an acousto-optic modulator. Both the continuous laser and the acousto-optic modulator are installed on the base. The signal light transmission component includes at least a condenser lens, an optical fiber collimator and a diffuse reflection target. The incident end of the fiber collimator is connected, and the fiber collimator corresponds to the diffuse reflection target; the pulse laser generated by the cooperation of the continuous laser and the acousto-optic modulator is used as the time scale signal (signal light), which has high safety and is easy to operate It is safe; and the pulsed laser is visible to the eye, and it can be predicted whether it is working normally before the test, which can completely avoid the loss of the time scale signal, and has high reliability; the frequency of the pulsed laser generated by the acousto-optic modulation is stable and has high precision, which improves the accuracy of the time scale signal .

Description

Technical field [0001] The present invention relates to an optical transient test supporting device. More specifically, the present invention mainly relates to a laser time mark signal generator for high-speed photography. Background technique [0002] The time standard is a key technical indicator in high-speed photography. Its accuracy is directly related to whether the initial moment of the transient process captured by high-speed photography is accurate. Especially in the field of detonation physics, it is related to whether the initiation time is accurate. The interpretation played a vital role. With the development of high-speed photography technology, especially the application of joint diagnostic technology of high-speed photography technology and other photoelectric testing technologies, the application of high-speed photography time standards has become more and more common, and the accuracy requirements for time standards have also increased. Higher. At present, the ...

AI Technical Summary

Problems solved by technology

[0003] One of the purposes of the present invention is to address the above-mentioned deficiencies and provide a laser time scale signal generator for high-speed photography, in order to solve the detonation stability of the detonator in the prior art in the way that the detonator acquires the time standard signal in high-speed photography Poor, high requirements on the electromagnetic environment, unable to meet the needs of multiple time scale signal acquisition, dangerous operation, poor safety and other technical problems

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