Fiber Bragg Grating Displacement Sensor - FBG Displacement Gauge - Crack Gauge
DCYS is a professional fiber grating displacement sensing system manufacturer, providing FBG displacement meter principle, packaging design scheme, application information in dams, mine collapses, roadbed settlements, landslides, crane booms and other fields; Our FBG displacement sensor‘s brand is "OFSCN". Bulk purchase, better price!
Product Function: Monitoring displacement of various cracks, potential landslides, and deformations.
Principle of Fiber Bragg Grating Displacement Sensor:
The OFSCN® FBG displacement sensor is a parameter extraction application of DCYS's FBG strain sensor. The relationship is given by Displacement = Total Length × Strain. Therefore, the structure of the FBG displacement sensor is the same as that of DCYS's FBG strain sensor, and its factory calibration formula corresponds length values to wavelengths.
Structure and Components of Fiber Bragg Grating Displacement Sensor:
The OFSCN® FBG displacement sensor consists of fiber connectors, all-metal seamless steel tubes/high polymer elastic materials, and FBG encapsulation. When combined with a fiber bragg grating demodulator, it forms a fiber bragg grating displacement sensing system.
Installation Methods of Fiber Bragg Grating Displacement Sensor:
The OFSCN® FBG displacement sensor can be directly fixed with fixtures at both ends, welded, bundled, surface-bonded with adhesive, embedded and bonded after insertion into the tested object, or directly installed inside concrete... In some special applications, special fixtures can be designed to assist in the installation of displacement gauges.
Environmental Conditions and Application Industries of Fiber Bragg Grating Displacement Sensor:
The OFSCN® FBG displacement sensor is commonly used in various environments such as dams, bridges, mine tunnels, large crane booms, interior and exterior surfaces of buildings, concrete surfaces and interiors, highway subgrades, tunnels, and locations prone to landslides. It can be used in transportation, tunneling, large-scale machinery, giant antennas, environmental protection, high-end scientific research, and other fields.
Measurement Range and Product Details of Fiber Bragg Grating Displacement Sensor (using a 1-meter sensor as an example):
-1.5mm to +1.5mm product (maximum deformation of 1.5mm): Fiber Bragg Grating Strain Sensor - FBG Strain Gauge - Metal Encapsulation, range of 1500με
-10mm to +10mm product (deformation of 1cm): High-range Fiber Bragg Grating Strain Sensor - FBG Strain Gauge - Metal Encapsulation, range of 10000με
-30mm to +30mm product (deformation of 3cm): High-range Fiber Bragg Grating Strain Sensor - FBG Strain Gauge - Metal Encapsulation, range of 30000με
-300mm to +300mm product (deformation of 30cm): High-range Fiber Bragg Grating Strain Sensor - FBG Strain Gauge
Fiber Bragg Grating(FBG) Displacement Sensor Advantages:
Compared to laser-based displacement sensors, the OFSCN® FBG displacement sensor measures displacement based on the displacement of the internal FBG. It is not affected by environmental factors such as air (haze, rain, snow, obstruction), ensuring accurate testing and rapid response (millisecond-level response).
Compared to various electrical signal displacement sensors based on current, resistance, voltage, capacitance, and other technologies, the OFSCN® FBG displacement sensor is based on fiber optic communication and fiber optic sensing. Therefore, it is immune to electromagnetic interference and can operate in various strong and weak electromagnetic environments.
Compared to traditional reflector-based FBG sensors, the OFSCN® FBG displacement sensor has a longer length, allowing for large displacement measurements and monitoring a wide range of environments or objects. This saves the number of sensors required and reduces costs.
The OFSCN® FBG displacement sensor is a digital, recordable, and networkable sensor. Length changes and displacement information can be obtained without visual observation. The composed fiber optic sensing system for displacement measurement can monitor length changes and displacement information in large spaces, over long distances, and with multiple targets, providing broad spatial coverage.