Technology
Zettlex sensors use a unique inductive or radio frequency [RF] technique.
The fundamental physics is similar to that used in resolvers and linear transformers but without their bulky, expensive wire windings. Zettlex technology is unusual in that it produces remarkably high resolution but stable & repeatable measurements, irrespective of environmental conditions or mechanical tolerances.
Non-contact operation combined with an insensitivity to temperature, humidity, mounting tolerances, fluids etc. mean that the housing and mounting of Zettlex devices is easy and inexpensive.
Typically, the main parts of our sensors are laminar printed circuits - thus enabling an extremely robust, lightweight, compact and accurate measurement technique. It also means that a bespoke shape or size is readily engineered to suit the application.
Zettlex sensors are mainly used as non-contact, absolute displacement measurement systems. Some are used as incremental position measuring devices.
Measurement ranges vary greatly - from <0,1mm to >10m and topologies include rotary, linear, 2D, 3D etc. The most frequent forms are:
- Small Rotary - <50mm diameter
- Large Rotary - >50mm diameter
- Linear
- Curvi-linear
- 2D and multi-axis.
Further detail is contained in the Technical Notes PDF on the left.



