Un sencillo medidor vectorial de impedancias eléctricas para el laboratorio.

Fernando Valcarce Codes


An arrangement for vectorial electrical-impedance measurements is described which is precise and accurate enough to be suitable for quick vectorial electrical-impedance measurements in the laboratory and so single so as to be appropiate for its use and implementation by the students. Measurements are carried out by determining the two parts, real and imaginary, of impedance at one fixed frecuency by means of a four quadrant multiplier whose output is low-pass filtered and yields three direct current voltages that properly combined allow to get a reading of real and imaginary parts of the impedance which is being measured.

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