scholarly journals High-Temperature Measurement of a Fiber Probe Sensor Based on the Michelson Interferometer

Sensors ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 289
Author(s):  
Jiahao Guo ◽  
Siping Lian ◽  
Ying Zhang ◽  
Yufeng Zhang ◽  
Dezhi Liang ◽  
...  
Keyword(s):  
High Temperature ◽  
Michelson Interferometer ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Good Stability ◽  
Fiber Probe ◽  
Repeated Heating ◽  
Heating And Cooling ◽  
High Temperature Sensor ◽  
Probe Sensor

In this paper, a fiber probe high-temperature sensor based on the Michelson Interferometer (MI) is proposed and experimentally verified. We used a fiber splicing machine to fabricate a taper of the single-mode fiber (SMF) end. The high order modes were excited at the taper, so that different modes were transmitted forward in the fiber and reflected by the end face of the fiber and then recoupled back to the fiber core to form MI. For comparison, we also coated a thin gold film on the fiber end to improve the reflectivity, and the reflection intensity was improved by 16 dB. The experimental results showed that the temperature sensitivity at 1506 nm was 80 pm/°C (100 °C~450 °C) and 109 pm/°C (450 °C~900 °C). The repeated heating and cooling processes showed that the MI structure had good stability at a temperature up to 900 °C. This fiber probe sensor has the advantages of a small size, simple structure, easy manufacturing, good stability, and broad application prospects in industrial and other environments.

High-temperature sensor based on an abrupt-taper Michelson interferometer in single-mode fiber

2013 ◽  
Vol 52 (10) ◽  
pp. 2038 ◽  
Author(s):  
Le Xu ◽  
Lan Jiang ◽  
Sumei Wang ◽  
Benye Li ◽  
Yongfeng Lu
Keyword(s):  
High Temperature ◽  
Temperature Sensor ◽  
Michelson Interferometer ◽  
Single Mode ◽  
Single Mode Fiber ◽  
High Temperature Sensor

All Single-Mode Fiber Fabry-Pérot Interferometric High Temperature Sensor Fabricated with Femtosecond Laser

2012 ◽  
Vol 39 (10) ◽  
pp. 1005001
Author(s):  
王文辕 Wang Wenyuan ◽  
文建湘 Wen Jianxiang ◽  
庞拂飞 Pang Fufei ◽  
陈娜 Chen Na ◽  
王廷云 Wang Tingyun
Keyword(s):  
High Temperature ◽  
Femtosecond Laser ◽  
Temperature Sensor ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Fabry Perot ◽  
High Temperature Sensor

POTOMAC

Alloy Digest ◽  
1975 ◽  
Vol 24 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Heat Treating ◽  
General Purpose ◽  
Low Carbon ◽  
Repeated Heating ◽  
Temperature Changes ◽  
Heating And Cooling ◽  
Temperature Performance ◽  
Heat Checking

Abstract POTOMAC is a general-purpose, low-carbon, chromium-molybdenum-tungsten hot-work steel. It has excellent resistance to shock and heat checking after repeated heating and cooling. Potomac is suitable for hot-work applications involving severe conditions of shock and sudden temperature changes. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, and machining. Filing Code: TS-290. Producer or source: Allegheny Ludlum Corporation.

Fiber-optic Michelson interferometer based on α-Fe2O3/ZrO2 sensing membrane and its application in trace fluoride-ion detection

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zizheng Yue ◽  
Wenlin Feng
Keyword(s):  
Silver Film ◽  
Fiber Optic ◽  
Michelson Interferometer ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Ion Concentration ◽  
Fluoride Ion ◽  
Ion Detection ◽  
Core Fiber ◽  
Sensing Membrane

Abstract In this work, a fiber-optic fluoride-ion-detection Michelson interferometer based on the thin-core fiber (TCF) and no-core fiber (NCF) coated with α-Fe2O3/ZrO2 sensing film is proposed and presented. The single-mode fiber (SMF) is spliced with the TCF and NCF in turn, and a waist-enlarged taper is spliced between them. Then, a silver film is plated on the end face of NCF to enhance the reflection. After the absorption of fluoride ion by the sensing film, the effective refractive index (RI) of the coated cladding will change, which leads to the regular red shift of the interference dip with the increasing fluoride-ion concentration. Thus, the fluoride-ion concentrations can be determined according to the corresponding dip wavelength shifts. The results show that the sensor has an excellent linear response (R 2 = 0.995) with good sensitivity (8.970 nm/ppm) when the fluoride-ion concentration is in the range of 0–1.5 ppm. The response time is about 15 s. The sensor has the advantage of good selectivity, good temperature and pH stabilities, and can be applied to detect fluoride ion effectively.

High temperature (<125°C) uncooled operation of a 1.2 Gbit/s single-mode fiber packaged optical data link

2005 ◽  
Author(s):  
R. Nagarajan ◽  
R. Marsland ◽  
B. Li ◽  
R. Dato ◽  
P. Wen ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Optical Data ◽  
Data Link

scholarly journals Research on a Novel Fabry–Perot Interferometer Model Based on the Ultra-Small Gradient-Index Fiber Probe

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1538 ◽  
Author(s):  
Chi Wang ◽  
Jianmei Sun ◽  
Chenye Yang ◽  
Bin Kuang ◽  
Dong Fang ◽  
...  
Keyword(s):  
Output Voltage ◽  
Experimental System ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Gradient Index ◽  
The Novel ◽  
Fiber Probe ◽  
Model Based ◽  
Fabry Perot ◽  
Working Distance

A novel Fabry–Perot (F–P) interferometer model based on the ultra-small gradient-index (GRIN) fiber probe is investigated. The signal arm of the F–P interferometer is organically combined with the ultra-small GRIN fiber probe to establish the theoretical model of the novel F–P interferometer. An interferometer experimental system for vibration measurements was built to measure the performance of the novel F–P interferometer system. The experimental results show that under the given conditions, the output voltage of the novel interferometer is 3.9 V at the working distance of 0.506 mm, which is significantly higher than the output voltage 0.48 V of the single-mode fiber (SMF) F–P interferometer at this position. In the range of 0.1–2 mm cavity length, the novel interferometer has a higher output voltage than an SMF F–P interferometer. Therefore, the novel F–P interferometer is available for further study of the precise measurement of micro vibrations and displacements in narrow spaces.

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