Mitra Djamal, Ramli, Suparno Satira, Suprijadi
A new type of vibration sensor based on flat coil element has been made. This paper describes the development of vibration sensor based on flat coil element that has low manufacturing cost and high sensitivity. In this research, the flat coil element is used to measure the position of a vibrating object as a function of time. Its working principle is based on position change of a seismic mass that put in front of a flat coil element. The flat coil is a part of a LC oscillator; therefore the change of seismic mass position will change its resonance frequency. A sensor model based on mathematical approach for determining frequency and amplitude of the sensor has been developed. The model shows a good result with relative error under 3%.
Theoretical High Energy Physics and Instrumentation Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia; Electronics Material Physics Research Group, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Padang, Indonesia; Physics Departement, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia
