DIL L75 Laser (DIL L73 Laser)

The LINSEIS Laser Dilatometer DIL L75 Laser (DIL L73 Laser) enables expansion measurements with unprecedented accuracy and resolution in the picometer range is available here (0.3 nanometers = 300 picometers). In best case, resolutions that are 33 times better than those of a conventional push rod dilatometer can be achieved.
During development, particular emphasis was placed on the simple handling of the device. This made it possible to ensure operation that corresponds to that of a conventional push rod dilatometer.
The sample preparation for the DIL L75 Laser (DIL L73 Laser)does not require any special preparation. Nor does the device require any special sample geometries. Reflective and non-reflective samples can be measured.

https://www.linseis.com/en/instruments/dilatometer/dil-l75-laser-dilatometer/