Long range high position sensors for harsh environments

Written by: Tom Austin-Morgan | Published:

Queensgate claims its NCG-1-AL-UHV position sensors are the longest range devices in its portfolio. Their measurements are said to span across 11,000µm. Designed for precision positioning in the most uncompromising of environments, they have a sensing mechanism that utilises gold-plated ceramic capacitive plates and exhibits a combination of rugged construction plus strong operational performance of 0.12µm resolution.

NanoSensors maintain their zero position when they are powered down making them a highly optimised alternative or addition to interferometry for short distance measurements. Low thermal changes at the point of measurement mean the sensors are suitable for system drift and stability measurement.

The sensors are said to be radiation hard to 107Gy, operate across a temperature range of -200 to 150°C, non-magnetic and suitable for placement in ultra-high vacuum environments. Their relatively simple installation, with just one or two electrical feedthroughs, is claimed to reduce system complexity and cost over optical measurement systems. A standard model capacitive sensor NCG-1-AL is also available for use in air.

Queensgate’s NCG-1-AL-UHV position sensors are designed to be accompanied by the NS-2000/NS-2000SM single axis or NS-2304 multi-axis sensor controllers. Among the key applications for these devices are insertion redevises, X-ray monochromators, precision manufacturing and other large scale science experiments.


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