Patent ID: 11953533
Assignee: CAPITAL ONE SERVICES, LLC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. The capacitive sensor of claim 1, further comprising;
a third conductive structure that is counter to the first conductive structure, wherein the third conductive structure is movable relative to the first conductive structure, wherein the third conductive structure is capacitively coupled to the first conductive structure to form a second capacitor having a second capacitance that changes with a change in a distance between the first conductive structure and third conductive structure,
wherein the signal generator is configured to apply the first electrical signal step at an input or at an output of the second capacitor to induce a second voltage transient response at the output of the second capacitor; and
a diagnostic circuit configured to detect the fault in the capacitive sensor by measuring a second time constant of the second voltage transient response and detecting the fault based on the first time constant and the second time constant.