Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2006-08-01
2006-08-01
Nguyen, Vincent Q. (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S678000
Reexamination Certificate
active
07084644
ABSTRACT:
A circuit arrangement for capacitive humidity measurement that includes a capacitive element to be measured, a plurality of switch elements, a charge storage element and a control unit electrically connected to the capacitive element, the plurality of switch elements and the charge storage element. The control unit controls the plurality of switch elements so that a number of charging operations and a number of discharging operations of the capacitive element are performed, as well as a parallel charging of the charge storage element takes place, until the charge storage element has been charged to a defined reference value, and a determination of a capacitance of the capacitive element is performed from a determination of the number of charging operations, or of a time until the reference value is reached.
REFERENCES:
patent: 4282480 (1981-08-01), Fujito et al.
patent: 4431962 (1984-02-01), Kompelien
patent: 5146412 (1992-09-01), Jones
patent: 2003/0010119 (2003-01-01), Toyoda
patent: 2004/0051396 (2004-03-01), Supper et al.
patent: 2005/0104604 (2005-05-01), Mellert et al.
patent: 41 03 433 (1991-08-01), None
patent: 197 01 899 (1997-10-01), None
patent: 1 341 306 (2003-09-01), None
Lutz Bierl, “Economic Measurement Techniques with the Comparator A Module,” Texas Instruments Application Report SLAA071, published by Texas Instruments, Oct. 1999, pp. 1 and 26.
Dietz, Paul H. et al., “Wireless Liquid Level Sensing for Restaurant Applications,” Proceedings of IEEE Sensors 2002, Orlando, Florida, vol. 1, of 2, Conf. 2, Jun. 12, 2002, pp. 715-720.
E+E Elektronik Ges.m.b.H.
Nguyen Vincent Q.
LandOfFree
Circuit arrangement for capacitive humidity measurement and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit arrangement for capacitive humidity measurement and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for capacitive humidity measurement and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3641572