Galvanometer Scanners
QS-7 OPD Galvanometer Scanner
Strong performance and value
The QS-7 OPD moving-magnet galvanometers combine strong performance with cost-effective value. Our mechanical design incorporates our exclusive ceramic ball-bearing motors that are combined with our high output position detectors. Patented low inertia optical detectors achieve dynamic performance with faster, more accurate positioning. When integrated with Nutfield’s QD-4000 servo amplifier, the QS-7 OPD scanners deliver excellent speed and accuracy.
- Recommended apertures7mm, 10mm
- Product familyOptical Position Detector Galvos
Overview
Contact Nutfield Technology for assistance with identifying a solution for your scanning application.
Key Features
Key features of the QS-7 OPD Galvanometer Scanner:
- 7mm and 10mm apertures
- 230 µs Step Response with 7mm aperture mirror; 275 µs with 10mm aperture mirror
- Low drift – 50ppm
- High Linearity – 99.8%
- High Resolution
- Excellent RF noise immunity
- Available as galvanometer, single-axis scanner or XY scan set, open-frame head, and packaged head
Specifications
Values as published by Nutfield Technology.
Specifications for the QS-7 OPD Galvanometer Scanner:
| Specifications: | Value |
|---|---|
| Standard Specifications: | QS-7 OPD Galvanometer Scanner |
| Rotor Inertia | 0.1634 gm-cm² |
| Torque Constant | 40,000 dyne-cm |
| Coil Resistance | 1.3 ohm |
| Coil Inductance (@ 1kHz) | 76 µh |
| Weight (without cable) | 36 g |
| Inertial Load: | |
| Recommended | 0.17 gm-cm² |
| Maximum | 0.85 gm-cm² |
| Position Detector: | |
| Linearity* | >99.8% @ ±20° |
| Gain Drift | 50 ppm/°C |
| Offset Drift | 15 µrad/°C |
| Repeatability | 10 µrad |
| Typical output signal | |
| differential mode | 14.5 µA/° |
| common mode | 151 µA |
| Supply current | 15 – 20 mA |
| * For larger angles, contact Nutfield Tech. | |
| Dynamic Performance: | |
| Step Response Time | |
| (1% of full scale, 99% settled) | |
| 3mm X Mirror | 230 µs |
| 5mm X Mirror | 275 µs |
| Cable lengths available: | 7″ to 24″ (0.18m to 0.61m) |
| Storage Temperature: | 10 to 50°C |
| Operating Temperature: | 0 to 40°C noncondensing |
| All specifications are using Nutfield Tech’s QD-4000 Servo Amplifier. |
Applications
Nutfield’s QS-7 OPD Galvos support the following applications:
- Marking
- Imaging
- Micromachining
- Microscopy
Accessories
Accessories available for the QS-7 OPD Galvanometer Scanner:
- Cables – available lengths 7″ to 24″ (0.0178m to 0.610m)
- QD-4000 Servo Amplifier
Downloads
Documentation for the QS-7 OPD Galvanometer Scanner:
- Nutfield Technology’s OPD Galvanometer Scanners Data Sheet
U.S. patents apply to this product. For details, visit our Virtual Patent Marking page.
Galvanometer Scanners
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Need help choosing the right scanning solution?
Contact Nutfield Technology for assistance with identifying a solution for your scanning application.