Optical Scanners: VM2500plus Moving Magnet Closed Loop Galvanometer Based Optical Scanner

The VM+ advanced beam and image positioning scanner motors offer high dynamic performance along with high accuracy and instrument grade performance. We combined our advanced 3rd generation VM motor designs, with an entirely new optical position detector. The result is VMplus These new scanner motors deliver excellent speed and accuracy, with improved thermal performance and EMI resistance.

 

Model VM2500plus Moving Magnet Closed Loop Galvo

                    

Supports apertures of 10mm, 14mm

Galvanometer Specifications

All Position Detector specifications apply with Cambridge Technology servo driver after a 30 second warm-up. All angles are in mechanical degrees. Consult manual for complete operating instructions.

Mechanical

Rated Angular Excursion:   40°
Rotor Inertia:   0.5 gm cm2 , +/-10%
Torque Constant:   0.0078 Nm/A, +/-10%
Operating Temperature:   0-50° C
Thermal Impedance (coil to case)   0.9°C/W
Output Shaft Diameter (mm[inch])   Tapered Mount

Electrical/Drive Mechanism

Coil Resistance: (@60°C)   1.9 Ohms, +/-10%
Coil Inductance: (@1kHz)   130 µH, +/-10%
Small Angle Step Response Time:   200 µs, with 10mm, Y mirror, settled to 99%

Position Detector

Linearity:   99.8 %, Minimum, over 20 degrees,
Gain Drift (Ave./[Std Dev]):   0/[35] PPM/° C
Offset Drift (Ave./[Std Dev]):   0/[10] µrad/° C, Maximum

More Information

Galvos from Cambridge Technology Copyright © 2009 All rights reserved