title: Sinusoidal phase-modulating fiber-optic interferometer fringe with a feedback control system.
abstract: A displacement measurement system using a fiber-optic interferometer fringe projector with a feedback control system is presented and demonstrated. The system utilizes the integrating bucket method to detect the desired phase or the displacement and Fresnel reflection signal to realize measurement of the disturbance and feed it back to the modulated signal of the laser at the same time. The continuous signal truly reflects the error information, as the output light and reflected light share the same optical path. Practical experiments validate the feasibility of this method.
authors.forename: Changrong
authors.initials: C
authors.lastname: Lv
authors.forename: Fajie
authors.initials: F
authors.lastname: Duan
authors.forename: En
authors.initials: E
authors.lastname: Bo
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Duan
authors.forename: Fan
authors.initials: F
authors.lastname: Feng
authors.forename: Xiao
authors.initials: X
authors.lastname: Fu
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005240:Feasibility Studies; D005246:Feedback; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D009991:Oscillometry / Q000295:instrumentation*; D010783:Photometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*