Thermal imaging - It is a non-contact temperature capturing device which collects temperature data from multiple points and store in a 2D profile. Some thermal imagers can compare present profile with base profile and help to detect the problem area. Excellent and versatile method of predicting problems. Commonly use for .

i) Measuring bearing temp. of large motors
ii) Identify leaks
iii) Loose connection in electrical circuits.
iv) Hot-spots in electronics circuits



3. Motor currents wave form – these spectra will tell us bout jerk loads. As example, If we want to check belt conveyor motor then we have to monitor coefficient of friction between belt and pully which is decreasing with time. If slippage is occurring then produced torque also decreasing which in proportion with load current. So, We can detect slippage by analyzing wave form of load current).