This transducer is instrument that physical element (pressure, temperature, location etc) change other elements, namely electric signal.
This product is made to measure length, thickness, diameter, height by contracting testing product
and made coil variation electrical signal by moving core according to the variation of contracted port.
LVDT的原理：
When core is located in center point, the first side (Ve) is the same the second side.
Therefore, VA=VB and output V0 becomes Zero.
If core moves, VA is different VB in proportion to moving variation.
When core is located in center position, two signal VA is the same VB and signal Ve become center value. For example, half bridge transducer forms the half of wheastone bridge and can detect variation from zero point.
Two type transducer is operated by AC excitation and output variation is changed by both core variation and its signal. This relation is indicated sensitivity mV output /V energizing mm travel.