Patent Document ID: 10001457
Application ID: 13451128
Patent Flag: 1

Claim One:
1. A method of generating a probability of detection (POD) curve, the method comprising acts of: (a) placing a sensor proximal to a damage standard, the sensor having a drive, primary winding and at least two sensing, secondary windings, the at least two secondary windings located in spatial increments along a damage growth path on the damage standard; (b) dynamically loading the damage standard to initiate and grow damage of interest along the damage growth path; (c) exciting a current on the primary winding and measuring a plurality of monotonic responses on each of the at least two secondary windings during the loading; (d) suspending the dynamic loading at a plurality of times and, during each such suspension, measuring ground truth data for the damage of interest; and (e) generating the POD curve based at least in part on the plurality of responses from each of the at least two secondary windings during the loading and on the ground truth data; wherein: the at least two secondary windings of the sensor comprise a first secondary winding and a second secondary winding, the plurality of responses include a first response of the first secondary winding and a second response of the second secondary winding, and act (e) comprises combining the first response and second response into a combined response that is substantially linear with respect to damage level, and the combined response and the ground truth data are used to generate the POD curve, wherein substantially linear is defined with reference to FIG. 7D as at least as linear as the data ( 734 ) in the substantially linear region ( 733 ).