Capacitance to voltage conversion apparatus

Details Capacitance to voltage conversion apparatus Capacitance to voltage conversion apparatus

1981-10-19

1983-09-13

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307228, 307265, 328181, 328185, G06G 710, H03K 3017

Patent

active

044044810

ABSTRACT:
A C-V(capacitance-to-voltage) conversion apparatus usable e.g. for detecting physical parameters such as pressure, distance and angle. The apparatus comprises a capacitive sensor, a C-PW(capacitance-to-pulse width) conversion circuit, and a PW-V(pulse width-to-voltage) conversion circuit. The capacitive sensor converts a physical parameter to a capacitance, but has a non-linear conversion characteristic. The C-PW conversion circuit converts the capacitance to a pulse signal whose mean value is proportional to the capacitance, by controlling a charging-discharging cycle of the capacitive sensor and a reference capacitor. The PW-V conversion circuit converts the pulse signal to a d.c. voltage and at the same time compensates for the non-linearity of the capacitive sensor's conversion characteristic so that the d.c. voltage is proportional to the physical parameter.

REFERENCES:
patent: 3559082 (1971-01-01), Horn
patent: 3769598 (1973-10-01), Schauffele et al.
patent: 4016498 (1977-04-01), Hadley

Affiliated with

Also associated with

Rating

Capacitance to voltage conversion apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Capacitance to voltage conversion apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitance to voltage conversion apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1732077