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Fiber Bragg Grating (FBG) Sensors
The invention of optical fiber and semiconductor lasers in the 1960s opened up plenty of applications, notably as a medium of carrying light signals for communications and sensing applications.
Optical fibers provide a fundamental improvement over traditional methods offering lower loss, higher bandwidth, immunity to electromagnetic interference, lighter weight, lower cost, and lower maintenance. By applying a UV laser to «burn» or write a diffraction grating (a Fiber Bragg Grating — FBG) in the fiber it became possible to reflect certain wavelength of light, which used together with an interrogation analyzer precise sensing measurements could be taken.
BaySpec’s Fiber Bragg Grating Analyzers (FBGA) employ a highly efficient Volume Phase Grating VPG® as the spectral dispersion element and an ultra sensitive InGaAs array detector as the detection element, thereby providing high-speed parallel processing and continuous spectrum measurements. As an input, the device uses a tapped signal from the main data transmission link through a single mode fiber, then collimating it with a micro lens. The signal is spectrally dispersed with the VPG®, and the diffracted field is focused onto an InGaAs array detector. The control electronics read out the processed digital signal to extract required information. Both the raw data and the processed data are available to the host.
Read more about Fiber Bragg Grating (0,37 MB)
High Speed FBGA Analyzer — Standard
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FBGA Interrogation Analyzer is an integrated spectral engine simultaneously covering multiple wavelengths for precise and rapid fiber bragg grating (FBG) sensor system measurements. The device covers wide wavelength ranges and provides simultaneous measurements at very fast response rates and excellent wavelength resolution. High reliability (MIL STD 810F shock and vibration) is achieved through a rugged mechanical design with no moving parts. Periodic calibration is not required. High speed Input/Output is achieved through the use of USB2.0 communications (serial communications also supported at lower speeds). Applications — real time fault detection and isolation in fiber optic sensing systems, OEM module for handheld field test equipment. FBGA Standard (0,14 MB) |
High Accuracy FBG Analyzer — IRS series
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FBGA Interrogation Analyzer is an integrated spectral engine simultaneously covering multiple wavelengths for precise and rapid fiber bragg grating (FBG) sensor system measurements. The device covers wide wavelength ranges and provides simultaneous measurements at very fast response rates and excellent wavelength resolution. High reliability (MIL STD 810F shock and vibration) is achieved through a rugged mechanical design with no moving parts. Periodic calibration is not required. High speed Input/Output is achieved through the use of USB2.0 communications (serial communications also supported at lower speeds). Applications — real time fault detection and isolation in fiber optic sensing systems, OEM module for handheld field test equipment. FBGA IRS (0,14 MB) |