Abstract

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