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

Claim 16:
17. A method according to claim 16:
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 method comprises:
permitting movement of the first sheet in the tangential direction relative to the second sheet or deformation of the first sheet and, as a result of this movement or deformation, corresponding movement of the first and second sensor electrodes in the tangential direction relative to the base electrode; and
in response to the relative movement in the tangential direction between the first and second sensor electrodes and the base electrode:
detecting an increase in a first capacitance between the first sensor electrode and the base electrode relative to a capacitance between the first sensor electrode and the base electrode in an absence of the shear force;
detecting a decrease in a second capacitance between the second sensor electrode and the base electrode relative to a capacitance between the second sensor electrode and the base electrode in the absence of the shear force.