Cable tensiometer

Details Cable tensiometer Cable tensiometer

1989-08-01

1991-02-05

Woodiel, Donald O.

Measuring and testing

Hoisting cable and rope

73 1B, 7386248, G01L 510

Patent

active

049894501

ABSTRACT:
An improved tensiometer for measuring the amount of tension in a wire or cable comprises a hand-held sensor unit having a handle, two spaced support arms supporting cable-engaging support nibs, an extensible sensor nib protruding from the handle, and a trigger grip operable to extend the sensor nib upwardly between the support nibs to deflect a portion of cable clamped therebetween. The support nibs are eccentric and rotatably adjustable between a plurality of settings to permit the sensor unit to accommodate a number of different cable diameters, and the throw ratios of the nibs are arranged to minimize their eccentricity and the resulting variation in length of the deflected portion of cable at different settings. The sensor unit measures the force required to deflect the cable with a load cell, the output of which is converted into and displayed as a tension value by a microprocessor display meter connected to the sensor unit. The tensiometer is calibrated using a computerized linearization method to provide the microprocessor display meter with a linearization table for each diameter and type of cable to be tested.

REFERENCES:
patent: 1306891 (1919-06-01), Grafton
patent: 2592868 (1952-04-01), Cushman
patent: 3310981 (1967-03-01), Nixon et al.
patent: 4587855 (1986-05-01), Yamada et al.

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