A kind of angle calibration device and calibration method based on arrival time

Abstract

The invention discloses an angle calibration device and method. The device comprises a laser, a diaphragm and a calibrator which are sequentially arranged in the direction of a laser optical path. A first side plate, a second side plate, a third side plate and a fourth side plate of the calibrator form a rectangular structure with a hollow cavity. An opening with the aperture being A is formed in the center of the first side plate. A convex mirror with the aperture larger than that of the opening is arranged on the inner side of the third side plate opposite to the first side plate. The inner sides of the first, second and fourth side plates are each provided with a scale and a corresponding timing sensor, and dielectric layers are arranged on the corresponding timing sensors on the inner sides of the first, second and fourth side plates, wherein the refractive index n1 of the dielectric layers is larger than an air refractive index n0, the timing sensors send out electric signals to a controller when sensing laser beams, the controller determines the deflection angle of the laser beam transmitted by a laser device at the moment after receiving the electric signal and displays the deflection angle in real time, the laser can be calibrated for angle measurement of beams transmitted by the laser device, and therefore the accuracy of the transmitting angle of the laser device is improved.

Description

technical field [0001] The invention relates to the field of optical measurement, in particular to an angle calibration device and calibration method based on arrival time. Background technique [0002] Laser has the advantages of high brightness, good directionality, good monochromaticity, and good coherence, so it is widely used in various fields such as industry, agriculture, precision measurement and detection, communication and information processing, medical treatment, and military affairs. People can use lasers to process materials and carry out fine processing in disease treatment. [0003] With the development of social science and economy, the requirements for laser performance are getting higher and higher. If the laser can be operated finely, the target can be operated more specifically in practical applications. At present, the direction of the laser can be adjusted by changing the angle of the emission direction. However, this adjustment method mostly depends ...

AI Technical Summary

Problems solved by technology

At present, the direction of the laser can be adjusted by changing the angle of the emission direction. However, this adjustment method mostly depends on the hardware and precision of the laser itself. The operation of the laser direction is also limited to changing the emission angle of the beam after the laser itself is adjusted. , there is no calibration specifically for the actual emission angle of the beam, and it reacts to the calibration of the laser itself, so the calibration accuracy is low

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