The fiber optic interferometric sensor, the signal processing system of a fiber optic interferometric sensor and storage medium

摘要

The fiber optic interferometric fabry - perot - sensor with a sensor part (6) with mutually opposite, parallel surfaces, between which a measured intermediate space, whose size is in a function of changes in a physical size, for example, force, mechanical tension, pressure, temperature, is changed, a partially reflecting mirror or of an end face of a optical fiber, on which a partially reflecting mirror is formed, the one of the two mutually opposite surfaces, and an end face of a further optical fiber (5), on which a partially reflecting mirror is formed, which the other of the two mutually opposite surfaces, wherein light of a weakly coherent light radiating light source (1) to this further optical fiber is guided, light reflected or transmitted by multiple reflection in the measured intermediate space with respect to its optical intensity depending on the wavelength and the size of the measured intermediate space is modulated in different, by means of the optical fiber is guided, in the case of different gaps with a sensor (9) for detecting the optical intensity distribution in a timed sequence..