Infrared camera integration time sequence calibration device

Abstract

An infrared camera integration time sequence calibration device is applied to camera exposure time calibration and aims to solve the problem that in the prior art, an infrared camera integration time sequence cannot be accurately calibrated. According to the infrared camera integration time sequence calibration device, a motor, a shutter and an incremental encoder are connected through a transmission rod; the center line of the angular aperture of the shutter is aligned with the zero position of the incremental encoder; a control system receives a timing system external synchronization signal, a zero signal, an SIN signal and a COS signal which are provided by the incremental encoder are used as feedback elements for phase locking and speed measurement, a speed loop and a position loop are closed, and then the motor is controlled; the control system drives the motor, the motor drives the disk type shutter and the incremental encoder through the transmission rod, and the center line of the angular aperture of the shutter, the zero signal of the incremental encoder and the timing system external synchronization signal are made strictly synchronous; the time when light rays emitted from an infrared source pass through parallel light tubes and the center line of the angular aperture of the shutter and finally arrive at the target surface of an infrared camera is controlled. The infrared camera integration time sequence calibration device is high in calibration accuracy and convenient to use.

Description

technical field [0001] The invention relates to an infrared camera integration timing calibration device, which is mainly used for calibration and control of the infrared camera integration timing and improving the quality of the output image of the infrared camera. At the same time, it can also be used in industrial production and engineering to calibrate and control the logical relationship between camera exposure time and data output. The invention belongs to the technical field of infrared camera application. Background technique [0002] At present, when the infrared camera works under the condition of external synchronization, there are basically two integration timings, one is to start integrating after the arrival of the external synchronization signal, and the other is to integrate before the arrival of the external synchronization signal, that is, the integration time is uncertain. Even with the same manufacturer and the same type of camera, there may sometimes be...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the integration timing of the infrared camera is uncertain in the prior art, the flash meter can only calibrate the integration timing of the visible camera, but cannot accurately calibrate the integration timing of the infrared camera, the present invention provides an infrared camera integration timing calibration device, It can accurately calibrate the integration timing of each infrared camera and improve the output image quality of the camera

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