Correct option is B
An LVDT (linear variable differential transformer) is a transducer that measures linear displacement. It's a type of electrical transformer that measures the position of an object moving along a single axis.
Explanation:
· LVDTs are considered to be reliable and robust sensors.
· They work on the principle of a transformer and consist of a core and a coil assembly.
· LVDTs are sensitive to magnetic fields and are affected by temperature changes and vibrations.
· A demodulator converts the AC output of the LVDT into a DC voltage that's proportional to the displacement.