Product TOP
Compact, reflective rotary Laserscale featuring high accuracy, high resolution and high response speed.
Ideal for high-resolution angle measuring in HDD manufacturing equipment, precision measuring instruments, and aspheric surface processing machines.
- Signal pitch : 250 nm
- High response speed : 1,800 mm/s
411 rpm (when using r=41 mm scale)
1,428 rpm (when using r=12 mm scale) - High resolution : 68,719,476,736 pluses/rotation
(when using r=41 mm scale, divisions=65,536)
=0.09 nrad - Available with/without reference point
- Thin head with thickness of 12 mm
- Interpolators with various resolutions and output modes available (BD700)
- Special vacuum-compatible models available
Specifications
| Detector head Specifications | ||
|---|---|---|
| Model | BH20-RED | BH20-NED |
| Signal pitch | 250 nm | |
| Reference point | With reference point | None |
| Reference point detection direction | Single direction | None |
| Light source | Semiconductor laser : Wavelength 790 nm, Output 5 mW | |
| Detection principle | Diffraction grating scanning system | |
| Operating temperature | +10 to +30 °C (No condensation) | |
| Storage temperature | 0 to +50 °C (No condensation) | |
| Max. response speed | 1,800 mm/s | |
| Signal scale (BE10) Specifications | ||||||
|---|---|---|---|---|---|---|
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The Laserscale uses a semiconductor laser. The laser beam is harmful to the human body, so please do not look into the detection head section. Magnescale reserves the right to change product specifications without prior notice. |
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| Detection radius | 6.016 mm | 12.032 mm | 27.073 mm | 36.097 mm | 41.723 mm | |
| External form | Internal diameter | Contact us. | 8.5 mm | 37 mm | 57 mm | 68 mm |
| External diameter | Contact us. | 27 mm | 60 mm | 78 mm | 89 mm | |
| Grating pitch | 1.0 µm | |||||
| Number of output pulse of one rotation |
151,200 | 302,400 | 680,400 | 907,200 | 1,048,576 | |
| Max. response speed (*1) | 2,854 rpm | 1,428 rpm | 634 rpm | 476 rpm | 411 rpm | |
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Dimensions
Instruction manual
Catalog
| BH20 Series | Japanese |  |
|---|---|---|
| BH20 Series | English | |