Product Spotlight February: Piezo Actuators for Cryogenic Environments
Cryogenic environments below – 150 °C have tough requirements on materials and equipment in general working under those conditions.
Of course, piezo actuators are no exception here. Some metals get brittle if temperatures decline and the risk of fractures increases and therefore the life expectancy of the actuator decreases. High thermal conductivity of the used materials is fundamental in operating a piezo actuator in such environments because often times cryogenic setups are placed in vacuum and heat only can be channeled away via the body of the actuator itself.
A piezo actuator that has to function under these extreme conditions needs special customization. Materials have to be thermal conductive to not change the performance of the actuator – especially dynamics, precision and translation of the motion. An example for overcoming these challenges is the PXY 100 Cryo (see image) by piezosystem jena. It is constructed of thermal conductive copper-beryllium and aluminum. Since cryogenic temperatures often go hand in hand with UHV (Ultra High Vacuum), the PXY 100 Cryo had to be outfitted for vacuum use as well. The stage’s aluminum parts are therefore not anodized and cables are isolated by capton or teflon.
For further information on cryogenic and vacuum-ready piezo actuators by piezosystem jena, contact our technical support team. You can reach us via info(at)piezojena.com or 49(0)364166880.