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

Claim 14:
15. A sensor unit according to claim 11 wherein, in response to normal force oriented to have a component in the direction along the first inner surface normal vector:
the first sheet moves in the direction parallel to the first inner surface normal vector relative to the second sheet and the first and second sensor electrodes move in the direction parallel to the first inner surface normal vector relative to the base electrode; and
wherein, for such movement of the first and second sensor electrodes, 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 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.