Strain measurement device

Details Strain measurement device Strain measurement device

1987-11-25

1989-05-02

Levy, Stewart J.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Specified load or strain transmission device from specimen...

7386264, G01L 100

Patent

active

048257010

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.

REFERENCES:
patent: 753015 (1904-02-01), Tretch
patent: 3028754 (1962-04-01), Huyser
patent: 3899922 (1975-08-01), Mercer, Jr.
patent: 3914991 (1975-10-01), Fletcher et al.
patent: 4586576 (1986-05-01), Inoue
patent: 4644785 (1987-02-01), Doyle
patent: 4667514 (1987-05-01), Baer
patent: 4685338 (1987-08-01), Bonfils
patent: 4715211 (1987-12-01), Lehoczky
IMS Injection Machine Flyer Entitled "Tie Bar Strain Testing Gauges".

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