SP-30 Flexure-Based Galvanometer
Square Design for Easy Mounting
Drop-in compatible with several industry square-body galvos
Exactly like our SilkScan-30, Nutfield Technology’s SP-30 Flexure-Based Galvanometer with capacitive position sensing offers exceptionally smooth scanning. With it’s square design, the SP-30 moving-magnet galvo is ideal for the most challenging applications such as small scan angle, high-duty cycle raster imaging, and printing. Cross-axis flexures replace ball bearings such that errors due to rumble and lubrication are eliminated, enabling smooth scanning, and long service life.
The SP-30 Flexure-Based Galvanometer is intended for large mirrors; recommended aperture is 20mm to 50 mm. It is ideal for use as the page scanner in raster imaging systems, having great smoothness at low velocity. It’s also great as a tracking scanner for viewing or marking moving objects or for stabilization in imaging systems.
When integrated with Nutfield’s QD-4000 servo amplifier, the SP-30 Flexure-based Galvanometer Scanners deliver excellent speed and accuracy. Due to the spring force inherent in the flexure pivot, some scanning modes, such as large angle point and shoot, are not recommended.
Contact Nutfield Technology for assistance with identifying a solution for your scanning application.
Features
Key features of the SP-30 Flexure-Based Galvanometer:
Aperture range – 20mm to 50mm
Cross Flexure Pivot replaces ball bearings
Ideal for raster applications
Excellent cross-axis repeatability
Flexure pivot reduces on-axis jitter
No lubricants – useful in vacuum applications
Extended life in small angle applications
Specifications
Specifications for the SP-30 Flexure-Based Galvanometer:
| Specifications: | Value |
|---|---|
| Rated Excursion - Raster | ±20* |
| Rated Excursion - Vector | ±10* |
| Rotor Inertia | 8.25 gm-cm² |
| Recommended Beam Aperture | 20 - 50mm |
| Torque Constant | 2.8*10⁵ dyne-cm/amp |
| Electrical Specifications: | |
| Coil Resistance | 5.8 ohm |
| Coil Inductance (@ 1kHz) | 450 µh |
| Position Detector: | |
| Angular Sensitivity | 100 µ amp/° |
| Linearity | >99.9% |
| Gain Drift | 180 ppm/°C |
| Offset Drift | 30 µrad/°C |
| Repeatability | 5 µrad |
| Dynamic Performance: | |
| Step Response Time | |
| (1% of full scale, 99% settled) | |
| 20mm (Si) X-Mirror | 700 µs |
| 50mm X-Mirror | 2000 µs |
| Cable lengths available: | 0.43 m to 0.6 m |
| Installation: | electrically insulated |
| Storage Temperature: | -10 to 50°C |
| Operating Temperature: | 0 to 40°C noncondensing |
| All specifications are using Nutfield Tech's QD-4000 Servo Amplifier. | |
| * Due to spring force inherent in the cross flexure pivots, some types of motion are not recommended. Continuous raster scanning can be performed at larger angles than vector or point-and-hold applications. |
Applications
Nutfield’s SP-30 Galvos are ideal for the following applications:
Solar Scribing
Imaging
Marking
High Speed Scanning
Ideal for high-duty cycle or small angle applications
Excellent for high-resolution imaging applications
Accessories
Accessories available for the SP-30 Galvanometer:
Cables – available lengths 7″ to 24″ (0.0178m to 0.610m)
QD-4000 Servo Amplifier
Downloads
Documentation for the SP-30 Flexure Galvanometer:
Nutfield Technology’s Flexure Galvanometer Scanners Data Sheet
Nutfield Technology’s QD-4000 Servo Amplifier Data Sheet
Littlefuse Specifications
U.S. patents apply to this product. For details, visit our Virtual Patent Marking page.