Advanced microelectronics are packed within a miniature connector to provide complete conditioning of MicroStrain's DVRT® sensors.

The DEMOD-DC® makes inductive position sensors as easy to use as a potentiometer. With integral signal-conditioning electronics, the user connects power, ground and analog out, and the DEMOD-DC® outputs a voltage proportional to linear position.

The high-level analog-output voltage is digitally trimmed under microprocessor control during the manufacturing process. This insures that every DVRTs® offset and gain values match one another. This allows DVRTs® to be used interchangeably in industrial automation and OEM applications.

DEMOD-DC® cards will operate from a wide range of DC excitation voltages. They feature an input supply line that is internally regulated and reverse input protected, as well as a buffered, high-frequency response analog-output voltage.

How it works

Operating from a DC power supply, the DEMOD-DC® filters incoming transients from the line voltage, and supplies a sine wave excitation to the transducer. This excitation is used to measure minute impedance changes of the sensing elements.

Precision demodulator components provide rectification and differential amplification. Digital trimming insures conformity from sensor to sensor. The analog output is filtered and buffered to provide clean, high level signals.