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Micro-nano optical fiber Fabry-Perot sensor for high-speed dynamic temperature measurement and manufacturing method

A technology of micro-nano optical fiber and dynamic temperature measurement, which is applied in the direction of instruments, thermometers, heat measurement, etc., to achieve the effect of increasing conductivity, avoiding the influence of evanescent waves, and increasing reliability

Active Publication Date: 2020-03-27
重庆峰谱光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the diameter of ordinary optical fiber is 125 μm. When performing high-speed dynamic temperature measurement, due to the limitation of its own heat capacity, the response time can only be on the order of 10ms, and higher-speed temperature measurement cannot be performed.

Method used

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  • Micro-nano optical fiber Fabry-Perot sensor for high-speed dynamic temperature measurement and manufacturing method
  • Micro-nano optical fiber Fabry-Perot sensor for high-speed dynamic temperature measurement and manufacturing method
  • Micro-nano optical fiber Fabry-Perot sensor for high-speed dynamic temperature measurement and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This implementation discloses a high-speed dynamic temperature measurement micro-nano optical fiber method-Per sensor, see figure 1 , including a bracket 1 and a micro-nano optical fiber 4 .

[0038] The micro-nano fiber method-Pertin cavity 2 is engraved in the micro-nano fiber 4 . The micro-nano fiber method-Percavity 2 is carved by ultraviolet mask photolithography. The outer wall of the micro-nano optical fiber 4 is coated with a metal layer 3 . In this embodiment, the metal layer 3 is a copper layer.

[0039] The bracket 1 is a rectangular cylinder made of stainless steel, and a through groove 101 is processed in the middle of the rectangular cylinder. The four side walls of the bracket 1 are sequentially recorded as a first side wall, a second side wall, a third side wall and a fourth side wall. A hole communicating with the through groove 101 is processed on the third side wall, and the right end fixing area 5 is fixed in the hole. Zone 5 corresponds to the ...

Embodiment 2

[0044] This embodiment provides a relatively basic implementation method, a micro-nano optical fiber method-Per sensor for high-speed dynamic temperature measurement, see figure 1 , including a bracket 1 and a micro-nano optical fiber 4 .

[0045] The micro-nano fiber method-Pertin cavity 2 is engraved in the micro-nano fiber 4 . The outer wall of the micro-nano optical fiber 4 is coated with a metal layer 3 . In this embodiment, the metal layer 3 is a copper layer.

[0046] The bracket 1 is a cylinder, and the side wall of the cylinder is processed with a through groove 101 running through the entire side wall. The two bottom surfaces of the cylinder are processed with holes communicating with the through groove 101, and the right-end fixing area 5 and the left-end fixing area 6 are respectively fixed in the holes on the two bottom surfaces.

[0047] The micro-nano fiber 4 with the metal layer 3 is installed in the right-end fixing area 5 and the left-end fixing area 6 . Th...

Embodiment 3

[0050] The main structure of this embodiment is the same as that of Embodiment 2, and further, the micro-nano fiber method-Pertin cavity 2 is engraved by femtosecond laser writing method.

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Abstract

The invention discloses a micro-nano optical fiber Fabry-Perot sensor for high-speed dynamic temperature measurement and a manufacturing method. The micro-nano optical fiber Fabry-Perot sensor comprises a bracket and a micro-nano optical fiber; a micro-nano optical fiber Fabry-Perot cavity is engraved in the micro-nano optical fiber; a metal layer is plated on the outer wall of the micro-nano optical fiber; the bracket is a column body; a through groove penetrating through the side wall of the column body is formed in the column body; one end of the column body is provided with a right-end fixing area, and the other end of the column body is provided with a left-end fixing area corresponding to the right-end fixing area; the micro-nano optical fiber with the metal layer is installed in theright end fixing area and the left end fixing area, and the micro-nano optical fiber Fabry-Perot cavity is located in the through groove. According to the invention, high-speed dynamic temperature measurement can be realized, and good structural strength and high-temperature resistance are achieved.

Description

technical field [0001] The invention relates to the field of temperature sensing and measurement, in particular to a high-speed dynamic temperature measurement micro-nano optical fiber method-Per sensor and a manufacturing method. Background technique [0002] Transient temperature is an important parameter for high-temperature flow field and thermodynamic analysis of temperature-resistant devices in applications such as combustion and high-speed heat transfer. The high-speed dynamic and accurate measurement of transient temperature plays a vital role in many fields such as aviation, national defense, and industry. . For example, if the combustion chamber temperature of an aero-engine exceeds 1600°C, in order to facilitate flight control, the temperature-measuring response time of a high-mobility fighter engine must be less than 10 ms; research on weapons such as missile gas jets, ammunition explosions, and inner and outer walls of gun barrels also involves transient tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01K11/3206
CPCG01K11/3206
Inventor 章鹏陈昱如刘显明雷小华陈伟明
Owner 重庆峰谱光电有限公司
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