Boots – shoes – and leggings
Patent
1995-04-05
1997-08-12
Voeltz, Emanuel T.
Boots, shoes, and leggings
364481, 364557, 364482, 364556, 324711, 324677, 324678, G01R 2700
Patent
active
056572387
ABSTRACT:
A dual-slope measuring circuit for measuring an unknown resistance. A first time measurement measures the time which is needed to charge a capacitor to a first reference voltage (Uref.sub.1) via a reference resistor. A second time measurement measures the time which is needed to charge the capacitor again to the first reference voltage (Uref.sub.1) but now via the parallel arrangement of the reference resistor and the unknown resistance. The value of the unknown resistance is determined from the ratio between the two time intervals thus measured. The time measurement is not started until the capacitor voltage (Uc) on the capacitor has passed a second reference voltage (Uref.sub.2), where the second reference voltage has a value between the first reference voltage and the capacitor voltage (Uc) appearing across the capacitor immediately after discharge of the capacitor.
REFERENCES:
patent: 3790890 (1974-02-01), Veittau et al.
patent: 4841458 (1989-06-01), Levine et al.
patent: 4910689 (1990-03-01), Shibamiya
patent: 4929886 (1990-05-01), Toshiyuhi
patent: 5274334 (1993-12-01), Mills
Bartlett Ernestine C.
U.S. Philips Corporation
Voeltz Emanuel T.
Wachsman Hal D.
LandOfFree
Resistance measuring circuit, and thermal apparatus including th does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resistance measuring circuit, and thermal apparatus including th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resistance measuring circuit, and thermal apparatus including th will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-165120