Single-Axis VantagePro® Scanning Galvanometer Systems

Features

• Moving Magnet Motor Design for Fast Response (250 µs for 0.4° Optical with Mirrors for Ø7 mm Beams)
• High-Precision Optical or Capacitive Mirror Position Detection (See Table to the Right for Details)
• Four Mirror Coatings Available:
  • Protected Silver, 450 nm to 10.6 µm
  • Nd:YAG Laser, 3^rd Harmonic, 355 nm
  • Nd:YAG Laser, 1064 nm
  • CO₂ Laser, 10.64 µm
• High Reflectance at 633 nm for Alignment Laser
• Analog PID Control Electronics with Current Damping
• 24" (610 mm) Drive Cable Included
• Power Supply, Power Cables, and Command Cables Available Separately
• Custom Coatings Available upon Request (Contact Tech Sales for More Details)

These high-speed VantagePro^® scanning galvanometer mirror positioning systems are designed for integration into OEM or custom laser beam steering applications. Models are available for beam diameters up to 45 mm. Each system includes a dual-axis galvanometer scan head with mirrors and matched driver cards. Dimensions and mounting features can be accessed by clicking on the red docs icon next to the Item # below. A compatible ±15 V power supply (either open frame or enclosed) and command cable(s) are sold separately below. For a list of which power supplies and cables to use with which galvos, see the Galvo Compatibility tab.

The user must provide a function generator or other analog voltage output device in order to operate the servo drivers. The mirrors are offered with one of four coatings, as shown in the table to the right. Custom coatings are available upon request. Please contact Tech Sales for more details. We also offer single-axis systems with the galvanometer scanners used in these scan heads.

Servo Driver Board
These closed-loop servo drivers interpret the signals from the position detecting system inside the motor and produce the drive voltage required to rotate the mirror to the desired position. High bandwidth ensures following of analog command waveforms with speed and accuracy.

Both drivers feature proportional-integral-derivative (PID) servo driver circuits with advanced current damping for high performance. The drivers incorporate low-noise components to maximize the signal-to-noise ratio for better accuracy and low-drift components to reduce the effects of temperature variation. A notch filter is selected and tuned for each unique mirror-galvo combination to maximize system bandwidth for faster, more accurate scanning. These systems are ideal for use in applications including step-and-hold positioning, vector positioning (e.g., laser marking), and raster positioning (printing or laser scanning microscopy).

Servos are optimized for high-speed, precise positioning for all applications. Servos for scanners with ≥15 mm maximum beam diameters additionally feature dual-output power amplifiers to keep power supply requirements modest for larger motors without sacrificing performance. Servo driver circuits provide soft start/stop operation, open circuit AGC fail, and over/under-voltage protections. Onboard status LEDs indicate servo status and fault conditions and a diagnostic port provides position, velocity, error, and current information. Each driver-galvo-mirror set is tested and tuned to specification. The unique serial number of the galvanometer is noted on its associated driver board.