Patent ID: 9435709
Filing Date: 2016-09-06
CPC Classification: G01M

Claim Text:
1. A hose degradation monitoring system comprising: a hose assembly including a hose having a first conductive layer and a second conductive layer; a monitoring circuit in electrical communication with the first and second conductive layers, the monitoring circuit including a circuit element having a non-linear electrical property in response to changed voltage, the monitoring circuit mounted in a monitoring assembly including a circuit board electrically connected at contacts to the first conductive layer and the second conductive layer; wherein the monitoring circuit includes a diagnostic unit configured to apply a plurality of different voltages across the circuit element, the plurality of different voltages including at least a first voltage, a second voltage, and a third voltage, and wherein the monitoring circuit is further configured to calculate an electrical characteristic of the hose assembly based at least in part on electrical characteristics of the hose assembly in response to the plurality of different voltages while accounting for a resistance of the contacts determined based at least in part on a response to the non-linear electrical property of the circuit element.