Sensor isotrópico para medição de campo elétrico

Abstract

The increase of the wireless communication, mainly with cellphones, bringing an increase of the number of radio-base stations next to residences and/or high populated areas, created in the world a worry about the effects of the non-ionizing radiation on human beings. That concern, and studies in that area, taking to create a standard that limits the electromagnectics fields exposition in the radio-frequency band by Anatel (Agencia Nacional de ˆ Telecomunicac¸oes). The resolution 303/2002 brings all the rules like limits of field intensity, ˜ measure methods, etc. to prevent possible damage to human health. The regulamentation with limits of field intensity is based in the utilization of field intensity meters Calibrated by accredited laboratories on Anatel. Then, without national tecnology to build these meters, this Dissertation Proposes with CPqD to presented ways to build radiofrequency sensors with thin film and thick film techniques and low cost to improve the nonionizing radiation levels Supervision. Then this dissertation presents the development of this sensor and its electronics, the results of practical tests and simulations using the finite elements method showing that the sensor works as we want.