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GaAs fiber optic temperature sensor GaAs package temperature sensor quartz glass fiber conduction

Product Details

Place of Origin: CHINA

Brand Name: ZMSH

Certification: rohs

Model Number: Gallium arsenide optical fiber temperature sensor

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Minimum Order Quantity: 2

Price: by case

Payment Terms: T/T

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Highlight:
Purpose::
Gallium Arsenide Optical Fiber Temperature Sensor
Temperature Measurement Range::
-20℃~200℃
Fiber Optic Connector Type::
ST (custom Accepted)
Minimum Bending Radius::
30mm
Optical Cable Withstand Temperature::
-100℃~250℃
Length Requirements::
The Cable Length Below 1000 M Does Not Affect The Temperature Measurement Performanc
Purpose::
Gallium Arsenide Optical Fiber Temperature Sensor
Temperature Measurement Range::
-20℃~200℃
Fiber Optic Connector Type::
ST (custom Accepted)
Minimum Bending Radius::
30mm
Optical Cable Withstand Temperature::
-100℃~250℃
Length Requirements::
The Cable Length Below 1000 M Does Not Affect The Temperature Measurement Performanc
GaAs fiber optic temperature sensor GaAs package temperature sensor quartz glass fiber conduction

GaAs fiber optic temperature sensor GaAs package temperature sensor quartz glass fiber conduction 0

Abstract

 

GaAs fiber optic temperature sensor GaAs package temperature sensor quartz glass fiber conduction

 
 
Gallium arsenide optical fiber temperature sensor is an optical fiber temperature sensor made of gallium arsenide as a temperature sensing substance. The crystal and quartz glass are encapsulated by using the temperature-related characteristics of the optical band gap change of gallium arsenide semiconductor material, which uses light as the medium and quartz glass fiber as the conduction medium. The sensor has no conductor structure, complete immunity to electromagnetic interference, good repeatability, high precision, fast response and long life. It can be used in areas with strict requirements for life and anti-interference, such as RFI, EMI,NMR,RF, microwave, ultra-high voltage equipment and other environments.
 
 


 

Working principle

GaAs fiber optic temperature sensor GaAs package temperature sensor quartz glass fiber conduction 1
 
The GaAS optical fiber temperature sensor is based on the optical properties of GaAs semiconductor materials, and its core is the principle that the absorption characteristics of GaAs crystals for specific wavelengths of light change with temperature. When the light source emits multi-wavelength light incident on the gallium arsenide crystal, the crystal absorbs different wavelengths of light at different temperatures, and the unabsorbed wavelengths of light will be reflected back to the device. By analyzing the reflection spectrum, the temperature parameters at the probe can be calculated. This measurement method based on spectral absorption changes avoids the need for field calibration and improves versatility and accuracy.
 
 


 

Technical specifications

 

Temperature measurement range:-20℃~200℃
Fiber optic Connector Type:ST (custom accepted)
Minimum bending radius:30mm
Length requirements:The cable length below 1000 m does not affect the temperature measurement performance
Optical cable withstand temperature:-100℃~250℃
Sheath material:PEEK
Electromagnetic interference:Complete immunity
Cable tension:50N/15s
Tension between sensor body and outgoing cable:20N/15s
Fiber cable tensile strength:100Mpa
Cable bending strength:165Mpa
Optical cable compression strength:125Mpa
Sheath hardness:D85 (Shaw)
Optical cable dielectric strength:23kV/mm

 
 


 

Characteristic

GaAs fiber optic temperature sensor GaAs package temperature sensor quartz glass fiber conduction 2
1. Conductor less structure: Gallium arsenide fiber optic temperature sensor adopts conductor less design, completely immune to electromagnetic interference, suitable for strong electromagnetic environment.

2. High precision and fast response: the temperature measurement accuracy can reach ±1℃, the response time is less than 0.25 seconds, suitable for real-time monitoring.
3. Long-distance transmission capacity: the fiber length can reach more than 1000 meters, does not affect the temperature measurement performance, suitable for remote monitoring.
4. Strong anti-interference ability: The sensor performs well in the environment of high voltage and strong electromagnetic interference, and is suitable for complex environments such as RFI, EMI, NMR, RF and microwave.
5. Long service life: The sensor has high stability and life span of more than 30 years, which is suitable for long-term online monitoring.
Strong adaptability: can be used in corrosive liquids, vacuum environment and high temperature and pressure scenarios.

 
 


 

Application

GaAs fiber optic temperature sensor GaAs package temperature sensor quartz glass fiber conduction 3
- Power system: used to monitor the temperature of key equipment such as circuit breakers, transformers, cables, bus switches, etc., to achieve fault warning and ensure the safe operation of equipment.
- Industrial equipment: such as hydraulic turbines, thermal power plants stator pressure finger and collector ring temperature measurement, and vacuum drying process oil immersed transformer internal hot spot monitoring.
- Nuclear magnetic resonance (NMR) and RF environments: Due to its anti-electromagnetic interference properties, it is widely used in nuclear magnetic resonance, RF and microwave equipment.
- Special environmental monitoring: such as corrosive liquid environment, vacuum environment and temperature measurement under high temperature and high pressure scenarios.
- Other fields: such as tunnel crack detection, earthquake monitoring, etc.
 
 


 

Q&A​

 
1. Q: How does gallium arsenide fiber optic temperature sensor achieve electromagnetic interference resistance?
    A: Gallium arsenide optical fiber temperature sensor adopts a conductors free structure, using the optical properties of gallium arsenide material, completely immune to electromagnetic interference, suitable for high electromagnetic environment.

 
 
2. Q: What is the temperature range of gallium arsenide fiber optic temperature sensor?
    A: Gallium arsenide fiber optic temperature sensors usually measure temperatures from -20 ° C to 200 ° C, with some models covering a wider range.

 
 
Tag: #GaAs fiber optic temperature sensor, #Gallium arsenide, #GaAs, #GaAs package, #Temperature sensor, #Quartz glass fiber conduction