Sensor signal processor having accurate digitizing capabilities

Details Sensor signal processor having accurate digitizing capabilities Sensor signal processor having accurate digitizing capabilities

1996-01-11

1998-10-13

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

324166, 32420721, 327309, 327323, 327516, G01B 730, G01D 5244, G01P 3481, H03K 508

Patent

active

058217452

ABSTRACT:
Magnetoresistive elements are disposed facing a gear to form a sensor for detecting rotation of the gear. The signal output from MRE sensor is an alternating amplitude signal. An operational amplifier has a differential gain exceeding its operational limit relative to the amplitude value of the sensor signal, and it amplifies and outputs the difference between the sensor signal and a reference voltage. Comparators judge whether an output of the operational amplifier is within a predetermined amplitude range relative to the amplitude center thereof. When the op-amp output deviates from the predetermined amplitude range, transistors either charge or discharge a capacitor, so that the reference voltage can be changed closer to the output of the operational amplifier. Another comparator compares the output signal of the operational amplifier with a threshold value to output a binary-valued signal.

REFERENCES:
patent: 4119918 (1978-10-01), Moser
patent: 5148170 (1992-09-01), Leopold et al.
patent: 5493219 (1996-02-01), Makino et al.
patent: 5729127 (1998-03-01), Tamura et al.
"Electronics One-Seven", Harry Mileaf, Hayden Book Company, Inc. 1967, pp. 7-25, 26.

Affiliated with

Also associated with

Rating

Sensor signal processor having accurate digitizing capabilities does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sensor signal processor having accurate digitizing capabilities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor signal processor having accurate digitizing capabilities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-316306