Measuring and testing – Dynamometers – Responsive to force
Patent
1997-02-04
1998-02-03
Dougherty, Elizabeth L.
Measuring and testing
Dynamometers
Responsive to force
73862636, 177211, 177225, G01L 104
Patent
active
057146950
ABSTRACT:
A helical load cell is disclosed which is capable of accurately measuring axially applied forces, whether the force is applied axially within the diameter of the helical coil or outside of the coil diameter. A pair of strain gage modules are disposed on diametrically opposed surfaces of the coil. Each module includes a pair of transducer elements disposed orthogonally with respect to each other and at forty-five degrees relative to a neutral axis of the coil. The modules are coupled in an additive bridge circuit arrangement. In one embodiment, the modules are disposed along the outside diameter of the coil. In another embodiment, the modules are disposed along the inside diameter of the coil. In yet another embodiment, the modules are dispose on the upper or lower surface of the coil. In yet another embodiment, a second pair of strain gage modules is provided and coupled in a subtractive bridge circuit. The second pair of modules provides information as to the location of the applied load.
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Product brochure for "Compression Only / Thru Hole Load Washer".
Dougherty Elizabeth L.
Schneck Thomas
Sentek Products
Yee George B.F.
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