Capacitive displacement sensors offer unbeatable resolution and speed

Sensor manufacturer Micro-Epsilon UK has just launched a new range of non-contact, wear-free capacitive displacement measurement sensors, which offer extremely high performance (resolution and speed), making them ideal for use within production plants for in-process quality assurance and other demanding industrial measurement applications.

Micro-Epsilon’s capaNCDT sensor system is unique in several areas. The system uses a unique ‘guard ring’ principle that provides three specific technical advantages for the customer when compared to competing sensors currently on the market.

First, it enables earthing through the sensor rather than the target, which means the target does not have to be electrically grounded. This means it is easier to install, especially on rotating or fast moving components. Also, the customer only needs one sensor. Some sensor manufacturers have to use two sensors – one on the top and one at the bottom of the target – to achieve this. In addition, the sensor can be used to measure plastic sheets or film, although the plastic must have a stable and consistent electrical resistivity. In fact, Micro-Epsilon has already supplied complete sensor systems to manufacturers of blown film, which measure to single micron accuracies and at high speed.