Ultraviolet light detection sensor
An ultraviolet and sensor technology, applied in the field of sensors, can solve the problems of inability to meet the needs of production and life, limited source of ultraviolet rays, etc., and achieve the effect of overcoming poor conductivity, large anode surface area and large area.
Active Publication Date: 2014-02-26
SICHUAN TIANWEI ELECTRONICS
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Problems solved by technology
The ultraviolet detection sensor in the prior art can measure the source direction of ultraviolet rays is limited, which cannot meet the needs of production and life.
Method used
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[0013] The present invention will be further described below in conjunction with the accompanying drawings.
[0014] like figure 1 As shown, the ultraviolet detection sensor disclosed in the present invention includes a housing 1 that can pass through ultraviolet rays, an anode 3, an anode lead 5, a cathode lead 6, and a photocathode 2 that can undergo a photoelectric effect under ultraviolet irradiation. The anode 3 Connected to the anode lead 5, the housing 1, the anode 3 and the photocathode 2 are all hemispherical, the anode 3 is located at the center of the lower part of the housing 1, and the photocathode 2 is a film layer structure and is attached to the housing 1 inner surface, the diameter of the anode 3 is greater than one-third of the diameter of the housing 1, a conductive mesh 4 is provided between the inner surface of the casing 1 and the photocathode 2, and the conductive mesh 4 is connected to the cathode lead 6 . Ultraviolet detection sensors are usually sea...
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The invention relates to the field of sensors, and discloses an ultraviolet light detection sensor. The ultraviolet light detection sensor comprises a shell body, an anode, an anode lead, a cathode lead and a photoelectric cathode, wherein ultraviolet light can transmit through the shell body, the photoelectric cathode can have a photoelectric effect under irradiation of the ultraviolet light, the anode is connected with the anode lead, the shell body, the anode and the photoelectric cathode are all in spherical shapes, the anode is located in the center of the lower portion of the shell body, the photoelectric cathode is of a membrane-shaped structure and attached to the inner surface of the shell body, the diameter of the anode is larger than one third of the diameter of the shell body, an electric conduction net is arranged between the inner surface of the shell body and the photoelectric cathode, and the electric conductive net is connected with the cathode lead. The sensor can accurately detect existence of the ultraviolet light, and can be used for ultraviolet light protection, flame detection and other aspects.
Description
technical field [0001] The invention relates to the field of sensors, in particular to an ultraviolet detection sensor. Background technique [0002] Ultraviolet light is the general term for radiation with wavelengths from 10nm to 400nm in the electromagnetic spectrum. In nature, the main source of ultraviolet rays is the sun. When sunlight passes through the atmosphere, ultraviolet rays with a wavelength shorter than 290nm are absorbed by the ozone layer in the atmosphere. Ultraviolet rays have a chemical effect that can make photographic negatives sensitive and have a strong fluorescent effect. Fluorescent lamps and various fluorescent lamps use ultraviolet rays to excite fluorescent substances to emit light. Ultraviolet rays can also be anti-counterfeiting, and ultraviolet rays also have physiological functions, such as sterilization, disinfection, and treatment of skin diseases and rickets. Ultraviolet rays have strong particle properties and can cause various metals ...
Claims
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IPC IPC(8): G01J1/42
Inventor 张超梁卫生白辉
Owner SICHUAN TIANWEI ELECTRONICS