Nanopositionneurs Cryo-XYZ innovants
Renaissance Scientific
Innovative Cryo-XYZ Nanopositioners
Renaissance Scientic is a young company from Boulder/CO (USA), producing Cryogenic Scanning Force Microscopes (AFMs) with unique advanced funcionalities, based on Cryogenic xyz-Nanopositioners or scanners with high precision and very low heat dissipation. The Ren-Sci motors were designed to have much lower capacitance than conventional solutions for cryogenic motors.
The cryogenic motors are UHV-compatible 1.0×10-11 mbar, non-magnetic by default (less than 10nT self-magnetization), have very low capacitances, up to 1 nF at 4K in (X,Y), as well as up to 3nF in (Z)-direction. The actuators are user replaceable and available in many different sizes.
Product Features
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- Minimum Head Dissipation
- High Closed-loop Precision
- User-replaceable Actuators
- UHV-and non-magnetic by default, no lubricants
LOW CURRENTS – HIGHER VOLTAGES
Compare a typical vendor scenario, 60 V, 1 kHz, 5 uF, so the power pumped into that capacitor is CV^2/2 times frequency which is ~ 9W. The analogous situation for our motors is 200 V, 1 kHz, 5 nF, which is 0.1 W, so using 90x less energy to get the same motion (and thus 90x less heat dissipation).
NP240 NP 340 NP450
Footprint: 24x24x44 mm3 Footprint: 34x34x66 mm3 Footprint: 45x45x44 mm3
Range: 5x5x5 mm3 Range: 15x15x10 mm3 Range: 20x20x5 mm3
USER REPLACEABLE ACTUATORS
We intentionally designed our motors to have user replaceable actuators. We supply 2 additional actuators per axis.
UHV AND NON-MAGNETIC BY DEFAULT
All Ren-Sci motors are UHV compatible, bakeable to 120 °C, and made with non-magnetic materials. In addition, we’ve integrated all of these UHV and non-magnetic components into our production, so there’s no ‘up-charge’ for having these features. No lubricants are used, solid-state or otherwise. Instead, we use diamond polished surfaces and extremely high precision on our machined parts (sub 2um parallelism on every part), so that there is no need for the use of lubricants.
