Title :
Linking electrical with mechanical quantities through electro-mechanical resonance
Author_Institution :
Istituto Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
Abstract :
The possibility of an electro-mechanical harmonic oscillator obtained by coupling two linear capacitive voltage-force transducers with a common floating mass is shown. Approaching a constant-charge operation, the system yields a very-low-frequency ac voltage related to mass through capacitance, length and frequency. A possible use in the determination of the Josephson constant or the Planck constant is also outlined.
Keywords :
capacitance measurement; circuit resonance; constants; electrometers; harmonic oscillators (circuits); units (measurement); voltage measurement; Josephson constant; Planck constant; SI units determination; capacitance; common floating mass; constant-charge operation; coupling; electromechanical harmonic oscillator; electromechanical resonance; electrometric system; fundamental constants; linear capacitive voltage-force transducers; very-low-frequency AC voltage; Capacitance; Electrical resistance measurement; Electrodes; Extremities; Frequency; Magnetic levitation; Resonance; Transducers; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547374
