Linear Encoders feature stainless steel scale.
Press Release Summary:
Effective in long-travel applications, SiGNUM(TM) RSLM Linear Encoders are available in metal tape scale lengths to 5 m. They feature ±30 nm cyclic error, filtering optics, and ±4 µm accuracy. Manufactured from hard martensitic stainless steel, units offer low coefficient of thermal expansion of 10.8 µm/m/°C. IN-TRAC(TM) auto-phase optical reference mark provides bi-directionally repeatable datum point across entire speed and temperature range of 12 m/s and 85°C.
Original Press Release:
New SiGNUM(TM) RSLM High Accuracy Stainless Scale Kicks Glass at Linear Encoding with Superior Durability, Longer Lengths and Installation Ease
Ultra-low ±30 nm cyclic error, patented filtering optics, and ±4µm accuracy give RSLM the performance of a fine pitch system without glass scale fragility and limitations
October 2007 - RSLM linear encoders feature a special stainless steel scale, ultra-low ±30 nm cyclic error, patented filtering optics and ±4µm accuracy to deliver the performance of a fine pitch system without glass scale fragility and limitations. Especially effective in long-travel applications, the RSLM is available in metal tape scale lengths to 5 meters.
New to Renishaw's advanced SiGNUM range of optical encoders, the RSLM linear encoders overcome the limitations of glass scale with superior durability, longer scale lengths, and easier installation. The special alloy stainless steel spar scale combines ready-for-anything ruggedness with overall accuracy (including slope and linearity) of better than ±4µm - an industry first! Combined with the ultra-low ±30 nm sub-divisional error (SDE) of the SiGNUM(TM) encoder, the robust RSLM is designed for industrial conditions and applications where neither durability or metrology can be compromised.
Manufactured from a hard martensitic stainless steel, RSLM offers a low coefficient of thermal expansion (10.8 µm/m/°C), while its special composition offers high resistance to corrosion. Provided in easy-to-use tape form, the robust scale features a much smaller cross section than typical glass scales, allowing easier handling and installation without risk of breakage. In addition, RSLM can be coiled for simple storage and handling, yet behaves as a spar scale once uncoiled. System designers can choose between clip and clamp mounting or adhesive tape with epoxy anchor point, to suit their requirements.
The non-contact SiGNUM optical encoder system combines high speeds, high accuracy and wear-free reliability with advanced features, including the IN-TRAC(TM) auto-phase optical reference mark and dynamic signal processing. The IN-TRAC(TM) auto-phase optical reference mark provides a bi-directionally repeatable datum point across the entire speed and temperature range (over 12 m/s and up to 85°C) without increasing overall system width.
The RSLM is available with multiple IN-TRAC(TM) optical reference marks regularly spaced for customer selection or a single reference mark, either at the center of the scale or close to the end of the scale. Dual optical limits provide easy-to-use end-of-travel indication.
The SR readhead features Renishaw's unique filtering optics to provide excellent immunity to dirt, dust and scratches. Like all SiGNUM(TM) encoders, the RSLM encoder system benefits from SiGNUM(TM) intelligent signal processing, which ensures excellent reliability and ultra-low sub-divisional error. The SiGNUM(TM) software enables optimum set-up and real-time system diagnostics via a PC's USB port.
As with all Renishaw products, the SiGNUM(TM) range is backed-up by a worldwide team offering truly responsive global support.
For more information on Renishaw encoders, contact Howard Salt, Business Manager, Encoder systems, Renishaw Inc., 5277 Trillium Boulevard, Hoffman Estates, IL 60192. Phone 847-286-9953; fax 847-286-9974. Email: howard.salt@renishaw.com
For a detailed look at other productivity enhancements for metrology, linear and rotary position feedback, and machine tool calibration, visit Renishaw's web site at: http://www.renishaw.com/encoders.
Contact
Howard Salt
Renishaw Inc.
5277 Trillium Blvd.
Hoffman Estates, IL 60192
Tel: 847.286.9953
Fax: 847.286.9974
howard.salt@renishaw.com
Reader inquiries should be directed to:
Susan Wilm
Marketing Assistant
Renishaw Inc.
5277 Trillium Boulevard
Hoffman Estates IL 60192
In Canada contact:
Dafydd Williams,
General Manager
R2180 Dunwin Drive, Unit 1
Mississauga, ON L5L 5M8
Phone: 905.828.0104
Fax: 905.828.5519
