Modeling of a dielectric vibration sensor

Abstract

The article presents a numerical analysis of the possibility of creating a dielectric amplitude oscillation sensor and selecting its optimal parameters. The sensor consists of a quartz sensing element with a mirror attached to it, which is attached to the body with an elastic suspension, and two optical fibers. The study is divided into two main stages: modeling the mechanical part of the sensor and determining its optimal geometry and developing a model of the optical component of the sensor. A mechanical study of the vibration sensor was carried out in order to determine its resonant frequency and determine the optimal length of the elastic jumper. The optical part of the study focused on the selection of optimal parameters for the configuration of the location of optical fibers. The results showed that the sensor has a natural oscillation frequency above 2000 Hz, and there is a weak dependence of the sensor sensitivity on the oscillation frequency with a jumper length of 1 mm. The study presents an analytical solution for choosing the optimal parameters of the optical component of the sensor. The research contributes to the development of fiber-optic accelerometers for measuring and analyzing vibration in various applications.