Ultraviolet detection system and ultraviolet detection method
A technology for detection systems and ultraviolet detectors, applied in the field of ultraviolet detection systems, can solve the problems of not preparing ultraviolet detection systems, restricting the practical use of semiconductor ultraviolet detectors, and not being packaged
Active Publication Date: 2021-07-06
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
[0004] At present, many research groups have realized the preparation of multiple high-performance ultraviolet detectors, but the reported detectors are basically just chips, which can only be tested for parameters in the laboratory, have not been packaged, and have not been prepared into ultraviolet detection systems , which is still an obstacle restricting the practical application of semiconductor ultraviolet detectors
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] refer to figure 1 , figure 1 A schematic structural diagram of an ultraviolet detector system provided for an embodiment of the present invention, the ultraviolet detection system includes: an ultraviolet ...
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The invention discloses an ultraviolet detection system and an ultraviolet detection method. The ultraviolet detector, a sampling resistor and a power supply are connected in series to form an ultraviolet detection circuit, and the ultraviolet light detected by the ultraviolet detector is obtained based on the voltage signal by detecting the voltage signal on the sampling resistor. Intensity without directly detecting the signal of the UV detector itself. The ultraviolet detector is a photoconductive device. Compared with the traditional photovoltaic photosensor with PN junction structure, the photoresponsivity is very high. Under the irradiation of ultraviolet light, the resistance of the photoconductive device will be significantly reduced. Compared with the traditional photovoltaic photosensor with PN junction structure, the ultraviolet detector can form a detection circuit with the power supply and the sampling resistor. The total of the ultraviolet detector and the sampling resistor is The voltage is the output voltage of the power supply. When performing ultraviolet detection, a large decrease in the resistance of the ultraviolet detector will lead to a significant increase in the voltage division of the sampling resistor, so that the ultraviolet light intensity can be detected based on the voltage signal of the sampling resistor.
Description
technical field [0001] The invention relates to the field of photodetectors, and more specifically, to an ultraviolet detection system and an ultraviolet detection method. Background technique [0002] Ultraviolet detection technology can be used in military communications, missile tail flame detection, fire early warning, environmental monitoring, biological effects, etc., and has a wide range of applications in both military and civilian applications. [0003] At present, the ultraviolet detectors that have been put into commercial use mainly include silicon detectors, photomultiplier tubes and semiconductor detectors. Silicon-based ultraviolet photocells need to be accompanied by filters, and photomultiplier tubes need to work at high voltages, and they are bulky, low in efficiency, easy to damage, and high in cost, which has certain limitations for practical applications. Compared with silicon detectors and photomultiplier tubes, semiconductor detectors made of semicond...
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IPC IPC(8): G01J1/42G01J1/44
CPCG01J1/429G01J1/44
Inventor 陈星刘可为张振中李炳辉申德振
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI