Patent ID: 11898924
Assignee: THE UNIVERSITY OF BRITISH COLUMBIA
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A sensor unit according to claim 1 wherein the one or more sensor electrodes comprise a first sensor electrode and a second sensor electrode which are spaced apart from one another in a direction tangential to the active surface and wherein, in response to shear force oriented to have a component in the tangential direction:
the first sheet moves in the tangential direction relative to the second sheet or deforms and, as a result of this movement or deformation, the first and second sensor electrodes move in the tangential direction relative to the base electrode; and
wherein, for such movement of the first and second sensor electrodes, a first capacitance between the first sensor electrode and the base electrode increases relative to a capacitance between the first electrode sensor and the base electrode in an absence of the shear force and a second capacitance between the second sensor electrode and the base electrode decreases relative to a capacitance between the second electrode sensor and the base electrode in the absence of the shear force.