Crystal Sensor Holder

Crystal Sensor Holder
The electrical characteristics of the crystal, which is held in place by the sensor, changes during deposition. Single sensors are generally used for short deposition runs, whereas, dual sensors allow for longer runs. Dual sensors require an air line to operate a pneumatic shutter which covers one crystal at a time. The sensor is either welded to the feedthrough or attached with connectors. Most sensors are available with cooling lines.