- Endless rotation
- Integrated scanner functionality
- High torque output
- Compact and robust design
- 20 mK to 375K, vacuum compatible
- Materials: stainless steel, phosphor bronze
- Moving parts non magnetic
- Cryo Optical Encoder option “COE”
- COE offers full 360 degrees range
Product description
The Cryo Rotary Motor (CRM) is a rotational drive with high torque output. An optical encoder can be fitted for closed loop control. In contrast to typical resistive based encoders it has no blind spots and can measure over 360 angular degrees. The moving parts are made out of nonmagnetic phosphor bronze to minimize interaction with external magnetic fields.
Specifications
| specs | unit | CRM1 | CRM1-COE |
|---|---|---|---|
| SYSTEM SPECIFICATIONS | |||
| Active axes | – | 1 | |
| Type of motion | – | Rotational | |
| Coarse/scanning actuator * | – | Piezo ceramic | |
| Coarse Range | deg | Endless | |
| Speed @ 293 K | rev/min | 5 | |
| Speed @ 4 K | rev/min | 1 | |
| Coarse step size @ 293 K | mrad (deg) | 0.15 – 0.75 (0.008 – 0.04) | |
| Coarse step size @ 4 K | mrad (deg) | 0.1 – 0.25 (0.005 – 0.015) | |
| Scan Range @ 293K | mrad (deg) | 0.6 (0.034) | |
| Scan Range @ 4K | mrad (deg) | 0.15 ( 0.009) | |
| Scanner sensitivity @ 293 K ** | mrad/V (deg/V) | 0.005 (0.0003) | |
| Scanner sensitivity @ 4 K ** | mrad/V (deg/V) | 0.001 (0.00006) | |
| Driving torque | Nmm | 15 | |
| Load capacity | grams | 200 | |
| Operating temperature | K | 0.02 – 375 | |
| Main construction material | – | Stainless steel, phosphor bronze | |
| Mass | grams | 170 | 180 |
| Dissipation @ 293K | mJ/step | 0.59 | |
| Dissipation @ 4K | mJ/step | 0.055 | |
| Encoder resolution | PPR | N/A | 850 |
| DRIVE ELECTRONICS | |||
| Controller/driver | – | CAB-230(115), CADM(2), MCM | |
| Encoder readout | – | N/A | OEM2 |
| * Coarse/scan positioning is both done with the CADM(2), not simultaneously | |||
| ** 0-150V, 10 bits resolution, setpoint rate approx. 10Hz | |||
Product configurations
CRM1: CRM1 incl. Scanner
CRM1-COE: CRM1 incl. Scanner and Cryo Optical Encoder
