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A linear scanner series for all-round fine positioning applications in a cryo-vacuum. Special attention is given to realize a robust mechanism that can tolerate significant handling and payload forces. The central open aperture allows the transfer of fibers, wires or light through the scanner body. The xy-scanner can be simply combined with the z-scanner for motion along all 3 linear axes. The use of non-magnetic materials allows operation in high magnetic fields
|Type of motion||-||Linear|
|Scan actuator||-||Piezo ceramic|
|Scan range @ 300K, unipolar voltage||µm||30 x 30||28||135 x 135|
|Scan range @ 4K, unipolar voltage *||µm||8 x 8||8||27 x 27|
|Scan range @ 4K, bipolar voltage **||µm||14 x 14||13||50 x 50|
|Open aperture diameter||mm||3||1,5||11|
|Maximum load, any direction||N||5||5||5|
|Main construction material||-||Titanium|
|Max driving frequency, no load||Hz||30||30||30|
|Controller/driver||-||CAB-230(115), CADM2, PSM|
|* Using a CADM2, -20V to +130V, 10 bits resolution, setpoint rate approx. 10Hz. Alternative: PSM amplifier with PSMIL -20V to +130V.
|** Using the PSM without PSMIL, this is only allowed at deep cryogenic temperatures and -150V to +150V is not to be exceeded.|
HV rated positioners can realistically be considered compatible with pressures as low as 1E-8 mbar. Lower pressures can be achieved by prolonged baking of positioners in vacuum at 100-150 deg C, depending on the type of positioner. Upon request JPE can provide such service at additional costs.
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