An automatic exposure synchronization device and method for an optical signal detector

Abstract

The invention discloses an automatic exposure synchronization device and method for an optical signal detector, wherein the device includes: an optical signal generator, an optical signal detector composed of a pixel array, and a controller connected to the optical signal detector; an optical signal generator The light signal detector is used to emit light signals; the light signal detector is used to absorb light signals through the pixels in the pixel array to generate charge signals and store them in the corresponding pixels; the controller is used to scan line by line and line by line The charge signal of the pixel is read and used to judge whether the light signal generator has emitted a light signal according to the read charge signal of the pixel, and when it is judged yes, the light signal detector is controlled to enter the exposure receiving state. The automatic exposure synchronization method does not need to add a photosensitive diode device and a current detection circuit specially used for exposure detection, which saves a lot of hardware costs, simplifies the structural design and installation of the detector, and improves production efficiency.

Description

technical field [0001] The invention relates to the field of image technology, in particular to an automatic exposure synchronization device and method for an optical signal detector. Background technique [0002] The structure of the X-ray imaging system is as follows figure 1 As shown, the synchronization between the X-ray detector 13 and the high-voltage generator 11 is divided into two types: wired synchronization and wireless synchronization. [0003] The wired synchronization is to connect the X-ray detector 13 and the high-voltage generator 11 through actual physical cables, and realize the exposure start and end of the high-voltage generator through the control signals in the physical cables, making it suitable for X-ray The exposure receiving stage of the radiation detector 13 realizes the synchronization function. Wireless synchronization means that there is no physical connection between the X-ray detector 13 and the high-voltage generator 11 to achieve synchron...

AI Technical Summary

Problems solved by technology

[0008] The shortcoming of this technology: in the technology that utilizes photosensitive diode to realize automatic synchronization, although can utilize photosensitive diode to realize automatic synchronization function, but photosensitive diode is expensive, and needs to be installed multiple in different positions in whole X-ray detector 13 One, and the cooperation of the subsequent current detection circuit is required to realize the automatic synchronization function, the cost is high, and the synchronization effect is affected by the reliability of the device installation

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