RLU20 laser unit
RLU20 offers a laser frequency stability of ±2 ppb over any one hour time period, which provides ultimate measurement performance for the majority of vacuum applications.
Features and benefits
Combining the RLU20 with Renishaw detector heads (RLDs) suitable for the required application offers the following features and benefits:
- Simple system architecture – utilising Renishaw’s unique fibre optic delivery system
- Rapid alignment – RLD detector heads allow for laser beams to be mounted directly to the measurement axis
- Compact and easy to set up – minimal system footprint and installation time
RLU20 overview
| Fibre lengths | 3 m only* |
| Number of axes | Single or dual* |
| Laser source | Class 2 HeNe |
| Outputs | Analogue / digital |
| Velocities | Up to 2 m/s** |
* Configured from the factory
** Version / resolution dependent
RLU20 performance
| Laser frequency stability (1 minute) | ‹±1 ppb |
| Laser frequency stability (1 hour) | ‹±2 ppb |
| Laser frequency stability (8 hours) | ‹±20 ppb |
| Vacuum wavelength stability (over 3 years) | ±0.1 ppm |
Differential measurement application
Looking for a suitable laser encoder for a differential measurement application within a vacuum environment? The RLE20-DX-XP system is a popular choice for this type of application, utilising our RLU20 laser unit with two RLD10-X3-DI (differential interferometer) heads.
Download
- Product data sheet (242 kB)
RLU20 laser unit
