Phase methods for piezoelectric resonator measurements: New proposals

Autor: Jerzy Kolakowski, Jacek Cichocki, A.J. Fiok, S. Żmudzin
Rok vydání: 1993
Předmět:
Zdroj: Measurement. 11:223-233
ISSN: 0263-2241
DOI: 10.1016/0263-2241(93)90041-f
Popis: In the paper two new computerized phase transmission methods for piezoelectric resonator measurement are presented. In both methods new ways of determining the reference phase, which is the tuning criterion, are utilized. In the first method this phase is calculated using predicted values of resonator motional resistance and shunt capacitance. In the second one the mean value of the minimum and maximum phase values (obtained during sweeping the test signal frequency in the resonance area) is used as a reference.
Databáze: OpenAIRE