Apparatus and method for measuring a spindle force

Details Apparatus and method for measuring a spindle force Apparatus and method for measuring a spindle force

1990-12-06

1992-09-15

Razavi, Michael

Measuring and testing

Dynamometers

Responsive to force

73862627, 73168, G01L 512

Patent

active

051467917

ABSTRACT:
A measuring apparatus for determining a force exerted by a spindle, in particular a spindle of a fitting, associated with a spindle housing includes a measuring apparatus housing to be firmly connected to the spindle housing. A plunger is disposed in the measuring apparatus housing for being acted upon by a force exerted by the spindle. A mechanical spring is braced against the measuring apparatus housing and operatively connected to the plunger. A strain gauge is disposed on the plunger. A method for determining a force exerted by a spindle, in particular a spindle of a fitting, includes coupling a housing of a measuring apparatus to a housing associated with a spindle. The spindle is moved toward a plunger of the measuring apparatus for raising the plunger, moving a mechanical spring operatively connected to the plunger toward the measuring apparatus housing and compressing the mechanical spring. The force-necessary for moving the spindle, raising the plunger and moving and compressing the mechanical spring is measured and determined with a strain gauge disposed at the plunger.

REFERENCES:
patent: 2458481 (1944-09-01), Ruge
patent: 4280363 (1981-07-01), Johansson
patent: 4912984 (1990-04-01), McMennamy et al.

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