Patent ID: 8941392
Filing Date: 2015-01-27
Classification: A61B,G01B,G01L

Abstract:
1. A sensor system comprising: an angular displacement sensor comprising: a circuit coupled to the first compliant capacitor, the circuit to measure a capacitance of the first compliant capacitor to sense bending movement of the elongated structure based on the capacitance of the first compliant capacitor; a first rigid member coupled to the first end of the angular displacement sensor, the first rigid member defining a first vector corresponding with an axis of the angular displacement sensor when the elongated structure is in the linear, non-bent position; and a second rigid member coupled to the second end of the angular displacement sensor, the second rigid member defining a second vector corresponding with the axis of the angular displacement sensor, and wherein the circuit is configured to determine an angular displacement between the first vector and the second vector within a first plane defined and extending along the longitudinal length and extending orthogonal through a width of the first compliant capacitor.