Differential impedance transducer makes precision measurements

Kaman’s non-contact DIT-5200 makes sub-nanometer differential measurements for an economical price. The system also offers high thermal stability, high sensitivity, and high linearity, and senses without touching the target.
November 3, 2010

Measuring presents the DIT-5200 differential impedance transducer that makes precision measurements to sub-nanometer resolution. The system also offers high thermal stability, high sensitivity, and high linearity, and senses without touching the target.

Differential systems provide greater resolution and thermal stability than single-ended systems.  The DIT-5200 is a true differential system for common mode rejection yet comes without the high price of many differential systems. Based on high-precision eddy current balanced bridge technology, this system is capable of sub-nanometer resolution.

The DIT-5200 is extremely thermally stable at +/-0.03% FS/°C, is highly sensitive up to 10V/mil, and is extremely linear to 0.1% full range.  Kaman offers this system in single- and dual-channel configurations.  The small package size of just 7.7 cubic inches leads to easy integration.

Applications for Kaman’s DIT-5200 include precise alignment of fast steering mirrors, servo control position feed back, semiconductor stage positioning, angular displacement indication, X-Y orbit position feed back, and stylus position.

Kaman Precision Products

www.kamansensors.com

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– Edited by Amanda McLeman, Control Engineering, CFE Media, www.controleng.com

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