 | TONiC™ RELM直线光栅系统
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 The RELM high accuracy scale offers high speed, non-contact performance, combined with advanced features including dynamic signal processing and the IN-TRAC™ auto-phase optical reference mark. RELM is extremely robust yet offers a level of performance previously available only from more delicate fine pitch encoder systems. With ±1 µm accuracy, low coefficient of thermal expansion and resolution to 1 nm, RELM satisfies the most demanding precision motion requirements.
The system comprises:
• RELM 20 µm pitch Invar spar
• TONiC T1000 readhead
• Ti analogue or digital interface RELM 20 µm pitch Invar scale
 20 µm pitch RELM scale is manufactured from Invar, a low expansion nickel/iron alloy. The robustness of Invar permits a much smaller cross section than glass scale, yet allows easier handling and installation, without risk of breakage.
• Available in defined lengths with custom lengths available on request
• Accuracy is individually certified to ±1 µm, calibrated against International Standards
• Low coefficient of thermal expansion: Invar, ~0.6 µm/m/°C (0°C to 30°C)
• IN-TRAC auto-phase optical reference mark, bi-directionally repeatable even at maximum system speed (10 m/s)
• Mid-point (RELM) and end (RELE) reference mark positions available as standard
• Dual optical limits provide on-scale end of travel indication
• Easy to install, direct to the substrate, using datum clamp and clips or adhesive backing tape
TONiC T1010 readhead & Ti interface features and benefits
•  Cyclic error of ±30 nm, offering ‘fine pitch’ encoder performance
• Compact dimensions - 10.0 mm x 35.0 mm x 13.5 mm (H x L x W)
• Excellent signal stability in conditions unsuitable for most open optical encoders
• User selectable gain control (AGC) maintains 1 Vpp analogue signal amplitude
• Capable of operation up to 10 m/s and 70 °C
• New! Low noise (jitter) filtering optics for improved positional stability
• Industry standard analogue and digital outputs
• Integral LEDs on readhead and interface for optimum set-up and system diagnosis
• High flex UL approved cable – up to 10 m between readhead and interface
• Fully RoHS compliant
Technical specifications
| Readhead dimensions |
10.0 mm x 35.0 mm x 13.5 mm (H x L x W) |
| Outputs (resolution) |
RS422: 5 µm, 1 µm, 0.5 µm, 0.2 µm, 0.1 µm, 50 nm, 20 nm, 10 nm, 5 nm, 1 nm
Analogue: 1Vpp
|
| Reference mark |
IN-TRAC auto-phase optical |
| Limit switches |
Customer positioned magnetic dual limits (available on linear scale only) |
| Maximum speed |
10 m/s |
| Ride height tolerance |
2.1 ±0.15 mm |
| Scale types |
RELM Invar spar (also available with linear RGSZ gold tape scale, RSLM stainless steel linear, and RESM and REXM rotary) |
| Vacuum compatible |
No | |
