Ceramic sheath of fiber high temperature detector

A ceramic sheath and detector technology, applied in instruments, thermometers, measuring devices, etc., can solve the problems of expensive sapphire optical fiber, black body cavity film damage, and affecting measurement accuracy, so as to save manufacturing costs and ensure real-time performance. Accuracy, effect of reducing dosage

Inactive Publication Date: 2016-05-04
HEBEI SMART COMM TECH
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Problems solved by technology

Since the black body radiation cavity is in direct contact with the high temperature environment to be measured, the firmness of the black body cavity coating on the sapphire fiber determines the life of the sensor. Due to the uncertainty of the measurement environment and improper transportation, installation or operation by the user, it may Cau...

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  • Ceramic sheath of fiber high temperature detector

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, invention is described in further detail:

[0015] The invention is a ceramic ferrule assembly, which is used for fast connection of optical fibers.

[0016] The invention is a ceramic detector for detecting high-temperature ambient temperature, based on a high-temperature-resistant sapphire optical fiber, and using a temperature-sensitive black body cavity sputtered on the sapphire as a temperature-sensing element to measure the temperature.

[0017] Such as figure 1 As shown, the present invention includes a sapphire optical fiber 6 sputtered with a temperature-sensitive black body cavity at the end and a ceramic sheath 1, the sapphire optical fiber 6 penetrates into the fiber hole of the ceramic sheath 1, and the diameter of the fiber hole matches the diameter of the sapphire fiber , because the wall of the black body cavity is a radiation film formed by sputtering, it is easily damaged by the external environment. In ...

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Abstract

The invention discloses a ceramic sheath of a fiber high temperature detector, and belongs to the technical field of temperature detection. A sapphire fiber in which a temperature sensitive blackbody cavity is sputtered at the end portion and a ceramic sheath are included, the sapphire fiber penetrates into a fiber hole of the ceramic sheath, the diameter of the fiber hole matches that of the sapphire fiber, one end of the ceramic sheath is provided with a protective chamber, and one end of the blackbody cavity of the sapphire fiber is placed in the protective chamber. According to the invention, the blackbody cavity of the sapphire fiber is arranged in the protective cavity of the ceramic sheath, protection requirements are met, the blackbody cavity of the sapphire fiber makes full contact with a measured medium, and the instantaneity and accuracy of measurement are ensured; a fiber butt-joint structure is arranged in the sheath to reduce the utilization amount of the sapphire fiber and the manufacture cost; and the ceramic sheath is simple in structure, easy to prepare and suitable for batch production.

Description

technical field [0001] The invention belongs to the technical field of temperature detection, and in particular relates to a ceramic sheath of an optical fiber high temperature detector. Background technique [0002] With the development of fiber optic technology and the demand for temperature measurement, sapphire fiber optic temperature detectors (sensors) have been widely used. After reaching the thermal balance, the high temperature resistant sapphire fiber is used to transmit the thermal radiation of the high temperature black body cavity, the radiation signal is measured and the temperature value is converted to a contact temperature sensor. [0003] The black body cavity is the thermal sensitive element in the sapphire high temperature fiber optic sensor, which converts the thermal signal of the measured environment into an optical signal. Since the black body radiation cavity is in direct contact with the high temperature environment to be measured, the firmness of ...

Claims

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Application Information

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IPC IPC(8): G01K1/08G01K11/32
CPCG01K1/08G01K11/32
Inventor 张爱民张润青赵妍婷杨海涛盖伟明韩军民
Owner HEBEI SMART COMM TECH
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