Circuit for processing a signal of a measuring sensor

Details Circuit for processing a signal of a measuring sensor Circuit for processing a signal of a measuring sensor

1996-03-08

1997-10-07

Nelli, Raymond A.

Measuring and testing

Gas analysis

Gas of combustion

123672, G01N 700

Patent

active

056750692

ABSTRACT:
The invention is directed to a circuit for processing a signal (UL) of a lambda probe having a probe signal terminal on which the signal (UL) is outputted and a probe ground terminal. The circuit includes a voltage source having a plus pole and having a minus pole connected to the probe ground terminal. A first network of passive components is connected between the plus pole and the probe signal terminal for dividing the voltage between the plus pole and the probe signal terminal in a pregiven ratio thereby providing a divided potential as a first analog signal. An analog-to-digital converter has an input and is connected to a chassis ground at a ground potential different than the ground potential at the probe ground terminal. A second network of passive components is connected to the plus pole for supplying a potential proportional to the potential on the plus pole as a second analog signal. The input of the converter is directly connected to the first network to receive the first analog signal and to the second network to receive the second analog signal thereby facilitating digital processing of the first and second analog signals in the converter.

REFERENCES:
patent: 4526147 (1985-07-01), Grob
patent: 5225661 (1993-07-01), Nankee, II et al.
patent: 5539638 (1996-07-01), Keeler et al.
patent: 5558752 (1996-09-01), Wang et al.
patent: 5566071 (1996-10-01), Akazaki et al.

Affiliated with

Also associated with

Rating

Circuit for processing a signal of a measuring sensor 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 for processing a signal of a measuring sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for processing a signal of a measuring sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2358935