Strain measurement device
AssigneeWolf Engineering Corporation
InventorRoger A. Holtslander
Life of this patent
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Abstract
A strain measurement device to determine the amount of clamping force or pressure developed in a machine from the small amount of linear movement which results from strain on a predetermined part of the machine, such as a tie bar. The strain measurement device features an elongated arm which will pivot in response to such strain movement and amplify or magnify the amount of this strain movement. The strain measurement device also includes a sensing unit which will measure the amplified strain movement, and a circuit for converting this measurement into a signal indicative of force.
Claims10
A strain measurement device for determining force as a function of strain movement, comprising:
- movable means for mechanically amplifying the amount of movement resulting from strain, said movable means including a stationary frame and an arm member mounted to said frame such that said arm member will pivot in response to said strain movement, said arm member including zeroing means for adjusting the position of said arm member;
- carriage means associated with an article being strained, such that said carriage means will move with said article as said article is being strained, said carriage means being positioned relative to said frame such that said zeroing means engages an extended member of said carriage means;
- sensing means for measuring said amplified movement;
- and
- circuit means for providing an indication of force from the measurement of said amplified movement.
Dependencies are inferred from the claim text.