Recent developments in eddy-current displacement sensors permit positioning in places previously unattainable. Example? Incorporation into fuel injection nozzles and automotive engine cylinders.
Multi non-contact displacement transducers (NCDT) work with higher frequencies, enabling a smaller coil than those used with conventional detectors. Two other advancements foster miniaturization:
1. Optimized electronic linearization to counter non-linearity in the physical measuring principle, and
2. A patented thermal compensation circuit based on measuring the coil's electrical resistance.
Micro-Epsilon Messtechnik, Postfach 1254, D-944493 Ortenburg, Germany; Tel: +49 8542 168 0; Fax: +49 8542 16890.
Tweet This
2 
