Abstract

Theft security of vehicle in common parking places has become a major part of concern. Since theft sensor work right at the moment theft either triggering alarm on the car and shut down of its ignition there by reducing thousands of vehicle crimes in year. Add –on to the vehicle security system along with need of efficient system development within the vehicle photonic crystal based MOEMS displacement sensor which replaces traditional sensor system with its high sensitivity and accuracy characteristics is analyzed here. Paper explores the detection of the micro leveldisplacement with a MOEMS structure. The measure of the micro optical elements, which operates the light passes via all the dimensional spaces establishes in MOEMS technology. These are pre-owned to detect stress, strain and other mechanical constraints founded on the movement. The mechanical substance of the rods are permitted to undergo alteration with realistic energy which then allows renovation into corresponding variations in electrical and optical properties of the device in the sealed system of observation. By means of these coupled-optical properties the MOEMS built mechanical structure can be used for flow-meter, leakage detection, bloodpressure monitoring, structural health monitoring among others. In this paper, we examined a model of a photonic crystal micro-displacement sensor with rods in air configuration by the actuation of the sensing layer, wavelength shift obtained is investigated for the frequency which curb the light flow within the sensing layer accurately. Analysis is carried out with FDTD simulation tool called MEEP. Result shows that vertical displacement of up and down slab with vertical passage of light through the slab exhibiting good agreement with accuracy and sensitivity characteristics of theft sensor.Wavlenggth shift of 0.001 is observed for each submicron range of up and down slab displacement, representing accuracy level of proposed design.