Ultraviolet light sensor pulse power supply method

A power supply method and sensor technology, applied in photometry, instruments, scientific instruments, etc., can solve problems such as short service life and achieve the effect of improving service life

Inactive Publication Date: 2016-11-30
河南联纵消防科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual working voltage of the UV sensor is 325±25V, and the service life is 10000h, and the service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A pulse power supply method for an ultraviolet light sensor, the first voltage and the second voltage alternate repeatedly, the first voltage is 350V, and the duration is 500ms; the second voltage is 24V, and the duration is 500ms.

[0014] The theoretical service life is extended to 20000h.

Embodiment 2

[0016] A pulse power supply method for an ultraviolet light sensor. The first voltage and the second voltage alternate repeatedly, the first voltage is 300V, and the duration is 300ms; the second voltage is 0V, and the duration is 700ms.

[0017] The theoretical service life is extended to 33333h.

Embodiment 3

[0019] A pulse power supply method for an ultraviolet light sensor. The first voltage and the second voltage alternate repeatedly, the first voltage is 325V, and the duration is 50ms; the second voltage is 10V, and the duration is 950ms.

[0020] The theoretical service life is extended to 200000h.

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PUM

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Abstract

The invention discloses a pulse power supply method for an ultraviolet light sensor. The first voltage and the second voltage alternate repeatedly, the first voltage is 300-350V, and the duration is 50-500ms; the second voltage is 0-24V, and the duration is 500-950ms. After a large number of experimental verifications, when the minimum duration of the normal working voltage is 50ms per second, it can still achieve the early warning effect. Compared with the prior art, the invention adopts the method of pulse power supply, which improves the service life without affecting the early warning function of the ultraviolet light sensor.

Description

technical field [0001] The invention relates to a pulse power supply method for an ultraviolet light sensor, which belongs to the field of fire-fighting sensors. Background technique [0002] The ultraviolet light sensor is a sensor that uses photosensitive elements to convert ultraviolet signals into electrical signals. [0003] Ultraviolet light sensors play a very important role in fire warning. The usual working voltage of the ultraviolet light sensor is 325±25V, and the service life is 10000h, which is relatively short. [0004] After searching, no document has been found to record the use of pulse power supply to improve the service life of the ultraviolet light sensor. Contents of the invention [0005] Aiming at the problems in the prior art, the object of the present invention is to provide a pulse power supply method for an ultraviolet light sensor. [0006] In order to achieve the above purpose, the technical solution of the present invention is: a pulse powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/02G08B17/12
Inventor 张海军赵勇李佩乾赵振洋徐中洋陈家柱冯光飞袁德河
Owner 河南联纵消防科技有限公司
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