Torque wrench

Details Torque wrench Torque wrench

1983-07-25

1985-06-11

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

7386226, 7386235, B25B 23142

Patent

active

045220751

ABSTRACT:
A torque wrench including an elongate deflection beam section. Two strain gauges are attached to the beam in longitudinal spaced relationship from the ends thereof and relative to each other. Each strain gauge is connected in a related cyclically energized measuring bridge, the output voltage of which is amplified and, under control of a switch, is conducted to and stored in a related measured value memory. The two stored measured value voltages are cyclically and alternatingly conducted to a micro-processor by means of an analog-to-digital converter. The micro-processor compares the measured value voltages and conducts a resulting signal to an indicating instrument which displays the resulting signal in force units.

REFERENCES:
patent: 4006629 (1977-02-01), Barrett et al.
patent: 4366874 (1983-01-01), Pidoux et al.
The Strain Gage Primer--McGraw-Hill Book Co., 2nd ed., Perry & Lissner, pp. 230-232.

Affiliated with

Also associated with

Rating

Torque wrench does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torque wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque wrench will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1176923