Patent ID: 6902316

Claim:
A non-invasive corrosion sensor, the sensor able to detect corrosion on a test piece, the non-invasive corrosion sensor comprising: a. a heat sink; b. a reference peltier and a test piece peltier, each having a positive side and a negative side, each peltier communicating with the heat sink such that the negative side of each peltier is maintained at a common temperature; c. a reference standard, the reference standard communicating with the positive side of the peltier, the test piece communicating with the positive side of the test piece peltier; and d. a data acquisition device, the data acquisition device able to record and compare the differences in temperatures of the test piece and the reference standard, whereby a higher temperature in the test piece than in the reference standard indicates the presence of corrosion, the differences in temperatures of the test piece and the reference standard obtained via electrical currents in the reference peltier and the test piece peltier.