Full Length Research Article EMBEDDED SYSTEM DESI GN FOR MEASUREMENT O F DIELECTRIC CONSTAN T OF CONDUCTING POLYMERS AT MICROWAV E FREQUENCIES
2015
This paper deals with the design of an embedded system for acquiring the dielectric constant using microcontroller controlled stepper motor. Dielectric parameters of general materials are measured manually by using x - band Microwave bench. These measurements are not much accurate when done manually. Hence, microcontroller based automatic measurement of the dielectric parameters is design ed. Microcontroller based stepper motor moves on the microwave bench and measures distance up to a fraction of mm to nanometer per step. This technique gives high precision for the measurement of guide wavelength (λ g ). Further accuracy of this technique can be increased if the stepper motor is operated in micro configuration.
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