Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – With auxiliary means to condition stimulus/response signals
Reexamination Certificate
2006-08-08
2006-08-08
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
With auxiliary means to condition stimulus/response signals
C324S526000, C324S706000
Reexamination Certificate
active
07088108
ABSTRACT:
In a method for detecting an offset drift in a resistive Wheatstone measuring bridge, a switch is made between a measuring mode and a testing mode without interfering in the internal structure of the measuring bridge. In testing mode, two sensor resistors that act in the same way and lie in different bridge arms in the measuring mode are connected in series, and a voltage level occurring in the connection of these sensor resistors is compared with a reference voltage. Preferably the sensor resistor that acts in a different way and lies between the two series-connected sensor resistors acting in the same way is bridged. The reference voltage is advantageously formed by resistive division of the voltage applied to the series connection of the sensor resistors. The testing mode may expediently be switched in such a way that the two pairs of sensor resistors acting in the same way are respectively tested in succession.
REFERENCES:
patent: 3873917 (1975-03-01), Kreuzer
patent: 5345184 (1994-09-01), Andoh
patent: 5440234 (1995-08-01), Kondo
patent: 5877626 (1999-03-01), Umemoto et al.
patent: 6750665 (2004-06-01), Takeuchi
patent: 6870236 (2005-03-01), Johnson
patent: 2002/0047716 (2002-04-01), Maher et al.
Böhm Matthias
König Peter
Krone Stefan
Schroth Andreas
Woschech Stefan
Deb Anjan
Fraunhofer-Gesellschaft zur Forderung der ange-wandten Forschung
He Amy
Intelligente Sensorsysteme Dresden GmbH
Young & Basile P.C.
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