A light-proof detection device and detection method for photosensitive detectors

A technology of a photosensitive detector and a detection device, which is applied in the field of sensors, can solve the problems of inaccurate quantitative measurement, shortened life of the detector, unable to work of the detector, etc., and achieves the effects of fast light-proof sealing, convenient promotion and use, and simple structure.
CN109084893BActive Publication Date: 2020-11-10JIANGSU SINOGRAM MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU SINOGRAM MEDICAL TECH CO LTD
Publication Date
2020-11-10

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Abstract

The invention finds that the light leakage of a light-sensitive element causes a significant change in amplitude of noise of a output signal and frequency of the noise of a light-sensitive element. The noise and change information is extracted by waveform sampling and analysis of the limited sampling rate, thereby guessing whether the light-sensitive detector leaks light. The invention provides alight-proof detection device and a detection method for a light-sensitive detector based on such a detection method, the device comprises a light-proof box for placing a detector, a light strip for generating brightness light arranged in the box, a shaping amplification trigger circuit located outside the box and connected to a output end of the detector, and a signal acquisition circuit connectedto the shaping amplification trigger circuit; the light strip is controlled by a light strip controller outside the box. The above-mentioned light-proof detection device can detect the light-proof degree of light-sensitive detector and can detect the light leakage position of the light-sensitive detector.
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Description

technical field

[0001] The invention relates to sensor technology, in particular to a light-proof detection device and detection method for photosensitive detectors. Background technique

[0002] Detectors made of photosensitive components are extremely sensitive to external light interference, and the photosensitive part of the detector needs to be protected from light. For quantitative measurement detectors, although light-proof packaging is carried out, there may be a small amount of light leakage or work in a strong light environment, which will cause inaccurate quantitative measurement and reduce the life of the detector. In the case of severe light leakage, the photosensitive element or components used for the readout circuit, power supply, etc. will be burned, causing the detector to fail to work.

[0003] In view of the above, it is necessary to detect the detector in the dark, and how to carry out the detection of the detector made of photosensitive components in t...

Claims

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