One common task is to measure the distance from one object to another at a particular depth. Conventional measuring methods are unsuitable, since they only record the gap at the surface. The new capaNCDT CSG sensors have been especially developed for this task. One sensor electrode each is located at the top, front and rear of a 20-cm long printed circuit board substrate. The gap width is determined with the sensor electrodes using the differential method when the electrodes are inserted into the gap. One special feature is the flexible sensor probe. This means that the sensor can also be used with objects that are difficult to access, as it can simply bend around obstacles. Using the capaNCDT CSG, gaps between 0.9 mm and 4.9 mm can be measured with a resolution of up to 90 nm.
In conjunction with the capaNCDT 6500 electronics unit, the signals from the two electrodes are used to directly calculate the gap width. The sensor can also be connected to the capaNCDT 6100 electronic units from Micro-Epsilon. Sensor interchangeability is thus also ensured.