Patent ID: 11892364
Assignee: ATI INDUSTRIAL AUTOMATION, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. A torque sensor, comprising:
a transducer plate having an axis and configured to be attached between first and second objects; and
four strain gages attached to the transducer plate, each strain gage connected to a strain gage circuit;
whereby the transducer plate configuration, strain gage placement, and strain gage circuits are such that a strain gage response for two different pairs of force and torque are each linearly dependent, whereby the strain gage response under the force of each pair differs from strain gage response under the torque of that pair by a multiple, and the four strain gage responses comprise a four by four linear system, from which at least a torque about the axis is directly determined from the strain gage responses and a decoupling matrix.