... Crack detection Fault analysis Eddy current testing Magnetic sensors ECT is based on electromagnetic induction. In this method, a frequency dependent excitation current is passed through the excitation coil, which generates an eddy current in the conducting sample (under test) as shown...

... be developed by the British Standards Institute (BSI). © MCB UP Limited 2001 Sensors Fault analysis Fieldbus Over the last 12 years, Oxford University and the Foxboro Company have developed the concept of the self‐validating (SEVA) sensor (Henry and Clarke, 1993). Papers, talks...

... a signal containing estimates of potential faults: © MCB UP Limited 1997 Control systems Fault analysis Feedback control Systems design Systems integration In the control of industrial systems, it is rare that a control system functions continuously without shutdown throughout...