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

Claim 18:
19. A method according to claim 17 wherein, in response to normal force oriented to have a component in the direction along the first inner surface normal vector:
permitting movement of the first sheet in the direction along the first inner surface normal vector relative to the second sheet and corresponding movement of the first and second sensor electrodes in the direction along the first inner surface normal vector relative to the base electrode; and
wherein, for such movement of the first and second sensor electrodes:
detecting that the first capacitance between the first sensor electrode and the base electrode increases relative to a capacitance between the first sensor electrode and the base electrode in an absence of the normal force; and
detecting that the second capacitance between the second sensor electrode and the base electrode increases relative to a capacitance between the second sensor electrode and the base electrode in the absence of the normal force.