Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1987-02-04
1988-02-09
Miller, Charles D.
Communications: electrical
Audible indication
Percussion-type sound producer
340347NT, H03M 112
Patent
active
047244194
ABSTRACT:
A measured voltage is converted into a digital value according to the follow-up principle. A compensation signal is added to the measuring signal so that the mean value of both signals becomes zero. The compensation signal is formed from at least two auxiliary compensation values which are each a square wave signal having a fixed frequency and a keying ratio which is adjustable independently of the other square wave voltage. The keying ratios are varied or adjusted so that the compensation signal compensates the measured signal. In order to achieve this the value deviating from zero of the sum of the measured signal and the compensation signal is integrated, converted into digital values, and supplied to a PI-or PID-control circuit which controls in a closed loop manner the keying ratios of the square wave signals. The I-value of the PI- or PID-control circuit serves as a measure of the measured voltage.
REFERENCES:
patent: 3192371 (1965-06-01), Brahm
patent: 3500109 (1970-03-01), Sugiyama
patent: 3673395 (1972-06-01), Tripp
patent: 3942172 (1976-03-01), Tucker
patent: 4588984 (1986-05-01), Dorsman
Fasse W. G.
Hottinger Baldwin Measurements Inc.
Kane, Jr. D. H.
Miller Charles D.
LandOfFree
Method and circuit arrangement for converting a measured voltage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and circuit arrangement for converting a measured voltage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and circuit arrangement for converting a measured voltage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1285479