Optical fiber grating sensor and portable electric devices temperature detection system therewith

A fiber grating and detection system technology, applied in the field of sensing, can solve the problems of large equipment volume, complicated operation, high cost, etc., and achieve the effects of convenient operation, weight reduction and volume reduction

Inactive Publication Date: 2007-03-14
天津爱天光电子科技有限公司
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  • Abstract
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Problems solved by technology

[0007] Chinese patent 200420028699.4 discloses a demodulation method using a wavelength division multiplexer, and the cost of this demodulation system is relatively high
[0009] The ubiquitous problem of the known technology is that the equipment is bulky and heavy, and the operation is complicated

Method used

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  • Optical fiber grating sensor and portable electric devices temperature detection system therewith
  • Optical fiber grating sensor and portable electric devices temperature detection system therewith
  • Optical fiber grating sensor and portable electric devices temperature detection system therewith

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Embodiment Construction

[0028] Specific embodiments are given below in conjunction with the accompanying drawings to further illustrate the fiber grating sensor of the present invention and the temperature detection system for portable electrical equipment it constitutes.

[0029] As shown in Figure 1, the fiber grating sensor of the present invention includes a housing 8, a groove 12 is formed inside the housing 8, and an outlet 14 is formed on one side of the groove 12 and communicated to the outside of the housing 8 , the groove 12 is provided with a fiber grating 15, the input end and the output end of the fiber grating 15 are drawn out from the outlet 14 to the outside of the housing 8, and a fiber protection sleeve 11 is placed on the outside of the housing 8. The center of 8 is formed with a through central hole 10, through which the fiber grating sensor 5 is fixedly installed to the end of the cable in the ring network cabinet under test. The inner wall 9 of the groove 12 inside the fiber gra...

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PUM

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Abstract

The optical fiber grating sensor comprises: a groove in shell with one side formed a drawing-off port outward, and the optical fiber grating arranged in the groove with ends drawing-off the shell. The corresponding portable electric equipment temperature detection system comprises: a broadband light source connected with in turns an optical isolator, the first outlet of an optical coupler and an optical connector; the second outlet of the couple connected with a microelectronic signal demodulation device and a signal processing system; and the fiber grating sensor in ring cycle network. This invention is fit to real-time detection, improves power supplying reliability and the reliability management.

Description

technical field [0001] The invention relates to the field of sensing technology, in particular to a fiber grating sensor capable of improving the reliability of a temperature detection system, small in size and light in weight and a temperature detection system for portable electrical equipment formed therefrom. Background technique [0002] Fiber optic and fiber grating sensors are new types of sensors that have developed rapidly in recent years. Fiber optic and fiber grating sensors can integrate information sensing and transmission. Compared with traditional sensors, it has many advantages: such as explosion-proof, anti-electromagnetic interference, anti- Corrosion, shock resistance, high temperature resistance, small size, light weight, flexible and convenient, especially for use in harsh environments. [0003] Due to climate, humid environment, oxidation in the air, and construction or maintenance process defects, the contact resistance of the joints of the ring network...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/34G01K11/32G01K11/3206
Inventor 董苏姗孟凡勇干耀生周大川
Owner 天津爱天光电子科技有限公司
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