The magnetic field measurement system of synchrotron radiation needs a high accuracy stage of 5-meter stroke which employes air-bearing as the guideway and laser interferometer as the position feedback device to measure and adjust the magnetic field inside the tunnel.
| ITEM | Z axis | |
| Stroke | Effective (mm) | 5000 |
| Maximal (mm) | 5200 | |
| Resolution (um) | 0.02 | |
| Straightness (um) | <1 | |
| Flatness (um) | <1 | |
| Repeatability (um) | +/- 0.1 | |
| Accuracy (um)
(with laser calibration) |
<0.5 | |
| Maximal speed (m/sec) | 0.5 | |
| Maximal Acc. (G) | 1 | |
- Air bearing is used to achieve long stroke precision motion.
- Extremely low cogging linear motor is used to minimize speed ripple.
- Symmetrical cable chains is designed to cancel out the bending force from cables.