LVDT signal conditioner is a device, which translates the linear of a ferromagnetic armature into an AC voltage that is proportional to the armature position. It receives AC or DC currents or AC or DC voltages as input signals. They excite a transducer according to defined parameters for voltage and frequency. A variable gain differential amplifier receives the resulting signal, which is then coupled to a synchronous detector, multi-step filter, analog-to-digital converter, and micro-controller. It has voltage or current outputs that power or activate the sensor that provides the input signals. LVDT signal conditioners vary in terms of filter and amplifier specifications. It includes signal filters block or decrease (attenuate) unwanted frequencies or signal wave characteristics. Integral filters allow some signal frequencies to pass while attenuating others. Integral amplifiers multiply a signal to the matching scale of the input.