attoPUBLICATIONS attoCATALOG-2017/18 | Page 320

PAGE 318 ANR240 | open loop rotator with vertical rotation axis, large aperture and ultra low wobble 10 mK .. 373 K 0 .. 31 T 5E-11 mbar Size and Dimensions 360 ° endless 200 g Coarse Positioning Mode footprint; height 35 x 35 (Ø 34); 13.5 mm travel range (step mode) 360° endless, both directions through hole in the middle of the axis Ø 12.7 mm typical minimum step size 1 m° @ 300 K, 0.5 m° @ 4 K weight 68 g max. drive velocity (@ 300 K, no load) approx. 30 °/s Materials (non-magnetic) Fine Positioning Mode positioner body beryllium copper and titanium fine positioning range 0 .. 30 m°@300K, 0 .. 4 m°@4K actuator PZT ceramics fine positioning resolution μ° driving shaft ceramics Accuracy of Movement (open loop) connecting wires insulated twisted pair, copper repeatability of step sizes typically 5 % over full range forward / backward step asymmetry typically 5-10 % ±100 μrad Options environmental options /RT, /HV, /UHV, /LT, /LT/HV, /LT/UHV wobble material option /CuBe Load @ Ambient Conditions (mounting orientation: axis vertical) encoder options /RES, /ULT maximum vertical load 2 N (200 g) 2 Ncm ANC300: ANM150, ANM300 maximum dynamic torque around the axis Compatibility with Electronics open loop controller