G - Physics – 01 – D
Patent
G - Physics
01
D
G01D 5/24 (2006.01) G01D 5/241 (2006.01) G01L 9/00 (2006.01) G01L 9/12 (2006.01) G01R 27/26 (2006.01)
Patent
CA 2046344
The arrangement serves for the processing of sensor signals which are furnished by a capacitive sensor which includes a measuring capacitor having a measuring capacitance influenceable by a physical measured quantity to be determined and at least one reference capacitor having a reference capacitance influenceable in another manner and furnishing a measuring effect dependent on the measuring capacitance and the reference capacitance. The arrangement comprises a signal processing circuit which operates by the principle of quantized charge transport by means of switch-capacitor structures and charge balancing at least in time average and which receives the sensor signals representing the measuring effect and furnishes an output signal corresponding to the measuring effect. The first electrodes of the capacitors of the sensor are at a fixed potential and their second electrodes are connectable for performing the charge transport to the first input of an input operational amplifier, the second input of which lies at a reference potential. The reverse charging of the capacitors of the sensor necessary for forming the transported charge packets is effected by switching over the reference potential of the input operational amplifier. This permits a one-sided fixed binding of the sensor capacitors to any desired potential.
Schneider Georg
Wagner Richard
Endress U. Hauser Gmbh U. Co.
Fetherstonhaugh & Co.
LandOfFree
Arrangement for processing sensor signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement for processing sensor signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for processing sensor signals will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2005774