Systems and Methods for Implementing S/SSTDR Measurements

摘要

Systems and methods which utilize spread spectrum sensing on live circuits to obtain information regarding a circuit under test are provided. In some embodiments S/SSTDR testing may be utilized to obtain R, L, C and Z measurements from circuit components. In yet further embodiments, these measurements may be utilized to monitor the output of sensors on a circuit.

主权项

1. A method for testing a device in its operating environment, the method comprising:
forming, by a testing device, a spread spectrum time domain reflectometry (S/SSTDR) signal; transmitting the formed signal to an electronic circuit which is communicatively connected to the testing device; receiving one or more reflections of the S/SSTDR signal at the testing device; and processing the received S/SSTDR signal to determine an electrical property of at least one component residing in the electronic circuit, wherein the electrical property is at least one of resistance, inductance and capacitance.