Back to results
US 5,347,871 AGranted
Strain sensor
AssigneeTeledyne Industries, Inc.
InventorsLouis A. D'Andrea, Roger W. Masson
Life of this patent
Estimating the term…
Abstract
A strain sensor adapted for adhesive attachment to a device element such as a valve stem includes a sensor circuit coupon, a support for the coupon, and a clamp carried by the support for clamping the support around the device element.
Claims5
A strain sensor comprising
- a thin, flexible non-loadbearing support sheet, and
- a flexible strain gauge coupon mounted on said support sheet, said coupon comprising a strain gauge circuit embedded in a flexible insulating element, and said support carrying a pair of clamping means.
The method of applying a strain gauge torque bridge circuit and a strain gauge thrust bridge circuit to a cylindrical stressable cylindrical base which comprises the steps of:
- adhering on a flexible plastic layer a layer of etchable conductor,
- adhering over said flexible plastic layer and said etchable conductor a cover layer of flexible plastic,
- adhering the coupon produced by the steps thus far to a sheet of flexible support materials,
- applying a layer of adhesive material, and
- circumferentially and radially pulling said support material against said cylindrical base with said adhesive material therebetween, and rendering said adhesive material operatively adhesive.
2 more elements
Dependencies are inferred from the claim text.