CAPACITIVE SENSOR DIELECTRIC LOSS MEASURING DEVICE Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: capacitive sensor dielectric loss measuring device has voltage source 1, master frequency oscillator 2, reference voltage shaper 3, reference voltage modulator 4, phase detector 5 and 6, modulators 7 and 8, reference resistance box 9, second power amplifier 10, amplifier 11, integrators 12 and 13, display 14, first power amplifier 15, switch 16 reference capacitor C_o, and feedback capacitor C₁. EFFECT: improved measurement accuracy due to provision for AC measurements including loss caused by not only throughput conductivity current but also by dielectric loss of polarization and measurement of capacitive sensor parameters using three-pole circuit connection. 4 dwg