300°C Fiber Bragg Grating Temperature Sensor - Single-Point/Multipoint FBG Thermometer - FBG Temperature Sensors

Product Alias: Fiber Bragg Grating Temperature Sensor, Fiber Optic Grating Temperature Sensor, FBG Thermometer, Temperature Sensor, Temperature Probe, Thermometer, Temperature Gauge, Fiber Bragg Grating Probe, FBG Probe.

Product Functions and Uses: Single-point/multipoint temperature detection and measurement in the range of -200°C to 300°C; temperature compensation for strain and stress sensors; Precision Temperature Monitoring; Environmental Monitoring Solutions; Digital Temperature Gauge; Accurate Temperature Measurement; Temperature Sensing Devices; Climate Control Sensors; Industrial Temperature Sensors; IoT Temperature Monitoring; Smart Temperature Probes; High-Accuracy Thermometers; Remote Temperature Monitoring; Temperature Data Collection Devices

Video Explanation of the 300℃ Fiber Bragg Grating Temperature Sensor :

Product Overview of the 300℃ Fiber Bragg Grating Temperature Sensor:

OFSCN® 300℃ Capillary Seamless Steel Tube Fiber Bragg Grating Temperature Sensor consists of fiber connectors (FC, SC, LC, ST, etc.), stainless steel seamless tube, and single-point/serial fiber Bragg grating (FBG) encapsulation. The FBG is written using the ultraviolet light masking method, and the fiber used is polyimide-coated fiber.

It is a FBG sensor with high sensitivity, fast heat conduction, good accuracy, small size, light weight, high tensile and compressive strength, high temperature resistance, waterproof and moisture-proof properties, non-combustible, and corrosion resistance.

By utilizing the temperature sensing characteristics of the Bragg fiber grating (FBG), this sensor can be inserted, clamped, adhered, or embedded into the structure to be tested for temperature detection and monitoring. It can be widely used in various industries such as industrial production, chemical industry, power, railway, military, aerospace, for single-point or quasi-distributed temperature measurement.

OFSCN® 300℃ Capillary Seamless Steel Tube Fiber Bragg Grating Temperature Sensor can be encapsulated with a single-point FBG or a serial FBG string/array.

This product is currently defined as a 300℃ product, encapsulating a FBG fabricated using the ultraviolet light masking method, with a polyimide coating that allows long-term use in a 300℃ environment (can be repeatedly used at 370℃).

In terms of principle and actual measurement, this FBG temperature sensor is a universal product and does not have compatibility issues with FBG demodulation equipment. When used with a matching FBG demodulator, this product can also be referred to as an industrial capillary thermometer.

OFSCN® Capillary Seamless Steel Tube Fiber Bragg Grating Temperature Sensor (Single-point)

OFSCN® Capillary Seamless Steel Tube Fiber Bragg Grating Temperature Sensor (FBG string/array inside)

Overall Parameters of the 300℃ Fiber Bragg Grating Temperature Sensor:

Brand	OFSCN®
Fiber Bragg Grating Temperature Sensor Name	OFSCN® 300°C Capillary Seamless Steel Tube Fiber Bragg Grating Temperature Sensor
Fiber Bragg Grating Temperature Sensor Model	BNCG-SFBG-PI300-01-FC/APC-2M (multiple models available, example only)）
	Product Structure: Pre-made fiber connectors + 0.9mm stainless steel seamless tube + single-point/multipoint fiber Bragg grating + end welding
※Length Range	10 centimeters to several meters (specific length depends on stock availability)

Parameters of the Fiber Bragg Grating (FBG) used in the 300℃ Fiber Bragg Grating Temperature Sensor:

Single-point Fiber Bragg Grating
Multipoint Fiber Bragg Grating String/Array
Fiber type used for FBG	Polyimide-coated high-temperature fiber
FBG fabrication method	Ultraviolet light masking
FBG center wavelength	1525nm to 1565nm
FBG reflectivity	10% to 99%
FBG temperature measurement range	Can be used in a range of -200℃ to 300℃ environment for long-term (can be repeatedly used at 370℃)
※Optional FBG	Various options available for FBG parameters, direct communication is required

Fiber Connector Specifications for 300℃ FBG Temperature Sensor:

Fiber connector types for FBG temperature sensor	FC/APC、FC/PC、SC、LC、ST
Fiber connector end face types	APC	PC
Fiber connector core material	Ceramic
Fiber connector insertion loss	<0.2db	<0.2db
Fiber connector return loss	>-60db	>-40db
Fiber connector storage environment	-40℃ to +85℃
Fiber connector operating environment	-40℃ to +75℃
※ Additional options for fiber connector	FC/APC, FC/PC optional high-temperature resistant connectors, high-temperature resistant connector materials can withstand up to 550℃ (depending on stock availability)

Armor and Tail End of the 300℃ Fiber Bragg Grating Temperature Sensor:

 

Armor type for FBG temperature sensor	OFSCN® Capillary Seamless Steel Tube Fiber/Fiber Bragg Grating Sensor Standard Packaging (Type 01)
Armor diameter for FBG temperature sensor	0.9mm
Material of Seamless Steel Tube Used in the Fiber Bragg Grating Temperature Sensor	316L Stainless Steel
Wall Thickness of Seamless Steel Tube Used in the Fiber Bragg Grating Temperature Sensor	0.18mm
Weight of Seamless Steel Tube Used in the Fiber Bragg Grating Temperature Sensor	Approximately 3.2g/m (excluding connectors)
Tensile Strength of the Fiber Bragg Grating Temperature Sensor	>400N (excluding connectors)
Lateral Pressure Resistance of the Fiber Bragg Grating Temperature Sensor	>9000N (excluding connectors)
Compressive Strength of the Fiber Bragg Grating Temperature Sensor	>180Mp (excluding connectors)
Tail End Packaging Form of the Fiber Bragg Grating Temperature Sensor	Brazing
※ Optional Armor and Tail End of the Fiber Bragg Grating Temperature Sensor	Armor Diameter (0.9mm/2.0mm/3.0mm), unconventional corrosion-resistant solutions

OFSCN Fiber Bragg Grating (Fiber Optic Grating) Temperature Sensor Overview Video: