Tapered optical fiber temperature sensor and sensing probe manufacture method thereof

A technology of temperature sensor and tapered optical fiber, which is applied to the manufacturing field of tapered optical fiber temperature sensor and its sensing probe, can solve the problems of complex temperature sensor manufacturing process, high requirements of detection device, high cost of detection circuit, etc., and achieves a simple structure. , easy to manufacture, low cost effect
CN102735368AInactive Publication Date: 2012-10-17SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2012-10-17
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The present invention relates to a tapered optical fiber temperature sensor and a sensing probe production method thereof. The temperature sensor comprises a tapered optical fiber temperature sensing probe. An input terminal of the tapered optical fiber temperature sensing probe is connected with a light source. An output terminal of the tapered optical fiber temperature sensing probe is connected to a signal processing unit through an optical detector. When a cone zone ambient temperature of the tapered optical fiber temperature sensing probe changes, a cone zone evanescent field changes correspondingly, so that an optical power outputted by the tapered optical fiber temperature sensing probe is changed. The optical detector converts an optical signal outputted by the tapered optical fiber temperature sensing probe into an electric signal and sends the electric signal to the signal processing unit, and temperature information is obtained through voltage conversion. The sensor and the method have the advantages of simple structure and high sensitivity, the sensing probe is easy to manufacture and low in cost, and is suitable for diverse industrial, agricultural, scientific research occasions of oil depot tank group temperature monitoring, power system temperature monitoring, mine tunnel fire monitoring, greenhouse granary temperature monitoring, building structure health monitoring and the like.
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Description

technical field

[0001] The invention relates to a tapered optical fiber temperature sensor and a manufacturing method thereof, belonging to the field of optical fiber sensing. Background technique

[0002] Temperature is one of the most basic and important physical quantities in science and technology. Temperature detection and control play a very important role in various sectors of the national economy and people's daily lives. Optical fiber temperature sensor has the advantages of anti-electromagnetic interference, flame-proof, explosion-proof, small size, and little influence on the measured temperature field. It has great application potential in the fields of electric power industry, machinery industry, automobile industry, steel industry, chemical industry, etc . There are many types of fiber optic temperature sensors, mainly fiber grating temperature sensors, fiber optic Fabry-Perot interferometric temperature sensors, fiber optic fluorescence temperature sensors, R...

Claims

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