The sensors are 8.2mm tall, yet capable of resolutions up to 1.2nm with a cyclical error of ±20nm. All models perform at 10-8 torr with negligible outgassing and are resilient to magnetic forces.
The Mercury units have advanced electronics built into their shielded D-sub connectors to give class-leading performance in electrically noisy environments. The range includes encoders with digital, analogue or programmable output. Output is A-quad-B with interpolation to give resolutions to 0.005µm (linear) and 67.1 million/revolution (rotary). Power consumption for most models is only 0.25W.
Set-up is simplified in many applications because a design feature ensures alignment during bolt-in, while a light emitting diode confirms alignment and index location. Further aiding set-up and use, the index signal is bi-directional and repeatable to each encoder’s resolution.
Vacuum-compatible linear and rotary glass scales are available in lengths from 13mm to 2m, and diameters up to 121mm, and a range of resolutions is available for various units within the range.