Circuit for measuring source resistance of a sensor

Details Circuit for measuring source resistance of a sensor Circuit for measuring source resistance of a sensor

1992-10-16

1995-11-21

Regan, Maura K.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324425, 204412, G01N 2702

Patent

active

054690706

ABSTRACT:
A method and apparatus are disclosed for measuring a resistance of a sensor. The apparatus injects a first test current into the sensor and then measures a substantially stable first voltage level across the sensor when the first test current is present. The apparatus then injects a second test current into the sensor, the second test current being substantially equal to but opposite in polarity to the first test current. A substantially stable second voltage level across the sensor is measured when the second test signal is present. Using the first measured voltage level and the second measured voltage level, the apparatus calculates the resistance of the sensor.

REFERENCES:
patent: 2852738 (1958-09-01), Sherman
patent: 3360719 (1967-12-01), Saito et al.
patent: 3661748 (1971-05-01), Blackmer
patent: 3718568 (1973-02-01), Neuwelt
patent: 3862895 (1975-01-01), King et al.
patent: 4094186 (1978-06-01), Wessel
patent: 4167163 (1979-09-01), Moder
patent: 4189367 (1980-02-01), Connery et al.
patent: 4218746 (1980-08-01), Koshiishi
patent: 4443763 (1984-04-01), Marsoner
patent: 4468608 (1984-08-01), Rolfe
patent: 4686011 (1987-08-01), Jackle
patent: 4777444 (1988-10-01), Beijk et al.
patent: 4822456 (1989-04-01), Bryan
patent: 4829253 (1989-05-01), Koluvek
patent: 5059908 (1991-10-01), Mina

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1140025