Optical fibers can be used as sensors to measure strain, temperature, pressure and other quantities by modifying a fiber so that the quantity to be measured modulates the intensity, phase, polarization, wavelength or transit time of light in the fiber.
What is fiber optic pressure sensor?
Optical pressure sensors detect a change in pressure through an effect on light. In the simplest case this can be a mechanical system that blocks the light as the pressure increases. In more advanced sensors, the measurement of phase difference allows very accurate measurement of small pressure changes.
Which fiber optic sensor can be used to sense?
Fiber optic sensors are fiber-based devices that use optical fibers to detect certain quantities such as mechanical strain or temperature, concentrations of chemical species, acceleration, rotations, pressure, vibrations and displacements.12 sept 2014
How do fiber optic sensors work?
Fiber optic sensors work based on the principle that light from a laser or any superluminescent source is transmitted via an optical fiber, experiences changes in its parameters either in the optical fiber or fiber Bragg gratings and reaches a detector which measures these changes.12 sept 2014
What is Fibre optic pressure sensor?
Developed to provide accurate pressure measurement in harsh environments and for laboratory applications.