Resolution and accuracy
The gapMaster has a resolution of 12 bit. This means that with a measuring range of
5 mm, for example, readable values of approx. 2 µm are possible. To increase the
accuracy a linearization of the sensor characteristic curve is performed. Depending
on the sensor shape, accuracies of better than 10 µm can be achieved. The sensing
and guiding of the sensor has a significant influence on the measuring result.
In principle, the sensor is mounted floating in the gap so that the correct dimension is
The cut-off frequency of the measured value recording is determined by the
spring-mass system for probes. The lower the mass the higher the cut-off frequency.
The sensor element of the gapMaster has a very small mass of less than one gram
and can therefore also be used for higher frequencies.