Digital Accumeasure Gen 3MTI Instruments is announcing a third-generation digital capacitance displacement gauge with lower noise and an industry-leading resolution. The Digital Accumeasure DSeries Gen 3 provides up to 0.01% FST linearity and is designed for measuring gap, vibration, and positioning.

In both analog and digital systems, noise is an unwanted disturbance that distorts or interferes with a desired electrical signal. MTI’s Digital Accumeasure Gen 3 is a lower-noise amplifier than the Gen 2 and features sub-nanometer resolution for highly-precise measurements.

Using state-of-the-art technology, the Digital Accumeasure DSeries Gen 3 converts a highly-reliable capacitive electric field measurement (displacement) directly into a highly-precise 24-bit digital reading. Quadrature encoder input provides positional information simultaneously with the displacement signal.

The Gen 3’s amplifier converts probe capacitance directly to target gap (distance). This direct conversion approach eliminates errors that traditional analog amplifiers experience because of filtering, linearization, range extension, and the summing of channels to obtain thickness or step measurements.

MTI’s Digital Accumeasure Gen 3 comes standard with 24-bit USB/Ethernet digital output. An analog output model can be used simultaneously. Filter frequency response, sample, rate, linearization, and probe range are all digitally-controlled for the most accurate data capture and lossless processing.