Method for determining a functional state of a piezoelectric...

Details Method for determining a functional state of a piezoelectric... Method for determining a functional state of a piezoelectric...

2007-07-23

2011-11-22

McCall, Eric S (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Fuel system or part thereof

Reexamination Certificate

active

08061188

ABSTRACT:
A check is made to determine whether the capacitance value measured at a specific point in time corresponds to a capacitance value of a calculated further capacitance profile or the measured capacitance value is within two tolerance ranges.

REFERENCES:
patent: 7467543 (2008-12-01), Schoor et al.
patent: 2002/0000218 (2002-01-01), Rueger et al.
patent: 2007/0001545 (2007-01-01), Schoor et al.
patent: 100 12 607 (2001-09-01), None
patent: 103 23 491 (2004-12-01), None
patent: 103 36 639 (2005-03-01), None
patent: 1 138 907 (2001-10-01), None
patent: WO 2005/045234 (2005-05-01), None

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