Tough sensor measures up

Sensor manufacturer, Micro-Epsilon UK, has launched a new range of non-contact capacitive displacement measurement sensors, said to offer high resolution and speed in process quality assurance and other demanding industrial measurement applications.

There are three main benefits to Micro-Epsilons capaNCDT sensor system, the first of which is that it can be earthed through the sensor rather than the target. This means it can be installed on rotating or fast moving components with just one sensor. Second, the measurement output has a high linearity, which means the user does not have to calibrate the sensor against the target when it is delivered from the factory. Finally, users can replace a damaged sensor or plug in another sensor with a different measurement range without having to re-calibrate the sensor electronics.

CapaNCDT sensors can be used to measure a variety of features including vibration, amplitude, clearance, run-out, displacement, distance or position, elongation, deflection, deformation, waviness and tilt angle. They can also be used for dimensional inspection, parts recognition, tolerance checking and sorting. Suitable for use with insulating non-metallic materials or with metals, the CapaNCDT electronics and sensor are protected to IP54 and the sensor can operate in ambient temperatures between 50 and 200C. Static resolution is 0.1m for the CS10 sensor, down to 0.0005m for the S601 sensor. Measuring range for metals is from 10mm down to 0.05mm and from 20mm down to 0.4mm for insulating materials.

Managing director at Micro-Epsilon UK, Chris Jones, said: Capacitive measurement is the most accurate and thermally stable method of non-contact measurement. The sensor measures over a defined surface area, which minimises errors due to surface roughness and the thermal drift is 100 to 200 times smaller than optical devices. Our task as application engineers is to help purchasers select the right sensor, based on their application requirements.