Capacitively measuring sensor and readout circuit

Details Capacitively measuring sensor and readout circuit Capacitively measuring sensor and readout circuit

1997-06-23

1999-11-02

Raevis, Robert

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Specified electrical sensor or system

73780, 73724, 7351432, G01B 716

Patent

active

059748958

ABSTRACT:
A capacitance to be measured is connected together with three further capacitances to form a bridge circuit, in which each two of the capacitors are connected in series, and these two series circuits are connected in parallel to one another, and which replaces a part of the input stage of a .SIGMA.-.DELTA. modulator. As inputs of this bridge circuit, terminals are provided at the ends of these series circuits, and as outputs terminals are respectively provided between the capacitors connected one after the other in series. In a sensor realized thereby, two capacitively measuring sensor elements of the same type are used. These capacitors are built into the bridge circuit together with two equally large reference capacitors in such a way that exactly one measurement capacitor and one reference capacitor is La connected is connected to each input and to each output of the bridge circuit.

REFERENCES:
Willy Sansen et al, Analog Circuit Design, Kluwer Academic Publishers, Dordrecht, 1994, pp. 163-181.

Affiliated with

Also associated with

Rating

Capacitively measuring sensor and readout circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Capacitively measuring sensor and readout circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitively measuring sensor and readout circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2121221