High speed measuring device utilizing logarithmic conversion

Details High speed measuring device utilizing logarithmic conversion High speed measuring device utilizing logarithmic conversion

1990-09-13

1992-08-04

Mis, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

250214L, G06G 724

Patent

active

051361922

ABSTRACT:
A measuring device comprises a detector (1) for a quantity x to be measured, which detector is adapted to produce two signals I.sub.1 and I.sub.2 which relate to x as x=(I.sub.1 -I.sub.2)/(I.sub.1 +I.sub.2). The device further comprises a processing circuit (3) which includes a first and a second logarithmic converter (9, 11) whose inputs receive input signals V.sub.1 and V.sub.2 which are proportional to the first and the second measuring signal I.sub.1, I.sub.2, respectively. The outputs of the logarithmic converters are connected to first and second inputs (12A, 12B) of a subtractor circuit (13) which produces at its output (14) an output signal U(x) which depends on the quantity x to be measured. If a subtractor circuit is used which is adapted to determine the hyperbolic tangent of the difference between the signals logV.sub.1 and logV.sub.2 present at its two inputs (12A, 12B), the relationship between u(x) and x will be linear.

REFERENCES:
patent: 4633077 (1986-12-01), Ikari et al.
"Multi-Sensor-System fur Roboter" by G. Hirzinger and J. Dietrich Technisches Messen tm, 53, Jahrgang, Heft Jul. 8, 1986, pp. 286-292.
(ATM) Archiv fur technisches Messen-Blatt Z 6343-9 (Juli. 1973) 137 Elektronica 83/20, pp. 39-49.

Affiliated with

Also associated with

Rating

High speed measuring device utilizing logarithmic conversion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High speed measuring device utilizing logarithmic conversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High speed measuring device utilizing logarithmic conversion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-780452