Fast Voice Coil Stage Provides 100 nm Resolution, 240 mm/s

Description

Auburn, MA – PI (Physik Instrumente) L.P., a leading manufacturer of nanopositioning and precision motion-control equipment for bio / nanotechnology, photonics, semiconductor and life science applications, offers the V-106 QuickScan™ series of PCI-card-driven, high-speed voice coil positioning stages, providing up to 20 mm (0.8 in.) of travel and resolution to 100 nanometers.

Applications
These closed-loop stages were designed for high-dynamics precision motion control applications, like those in biotechnology; laser beam control; scanning; optics; lens finishing; and fiber optics.

Cost-Effective PCI-bus Motion Controller Card w/ On-Board Amplifiers
QuickScan™ systems are driven by a PCI-bus motion controller card with on-board linear servo amplifiers. Based on a frictionless, backlash-free, voice coil linear motor drive and a high-precision optical encoder featuring 100 nanometer resolution, the systems provide extremely smooth motion with velocities to 240 mm /s (~ 9.6 inch/s).

Higher Dynamics & Lifetime than Screw-Type Drive Mechanisms
V-106 QuickScan™stages achieve significantly higher dynamics than leadscrew-based units with scanning frequencies to 20 Hz and above for small loads. Another advantage of the frictionless voice coil drive is greater reliability and lifetime than screw-type drive mechanisms. For high-throughput positioning applications, the short settling times of 75 ms for 5 mm step are a real benefit.

Features & Advantages
  • Frictionless voice-coil linear motor drive for smooth, ripple-free motion
  • Velocity up to 240 mm/sec (9.6 inch/sec)
  • Scanning frequency several 10s of Hz
  • Direct metrology linear encoder with 100 nanometer resolution
  • Travel ranges of 20 mm and 6 mm
  • Precision cross-roller bearings for ultra-straight and smooth motion
  • Cost-effective PCI-card controller with on-board amplifiers

Specs

• Travel range – 6 • Integrated sensor - Linear encoder • Sensor resolution - 0.1 • Design resolution - 0.1 • Minimum incremental motion - 0.2 • Backlash - 0.2 • Unidirectional repeatability - 0.2 • Pitch – 50 • Yaw – 50 • Max. velocity* - 240 • Reference repeatability – 1 • Mass moved – 102 • Load – 36 • Push-/pull force** - 5 • Push-/pull force with C-843** - 2.3 • Lateral force – 18 • Continuous average current - 0.42 • Peak current - 1.8 • Average force - 1.2 • Coil resistance – 10 • Coil inductance – 100 • Force constant - 2.88 • Voltage generation constant - 36.1 • Operating temperature range - 0-55 • Body material – Al • Mass (without cable) – 800 • Cable length - 0.3 • Connectors - Sub-D 15 (m) • Recommended controller / driver - -C-843
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