Japan, Magnescale
Magnescale BH25 Laserscale
Made in Japan
Manufacturer: Magnescale Co., Ltd.
Model: BH25
Features
- Signal pitch : 250 nm
- High accuracy : ±1 µm / 420 mm
- High response speed : 1,800 mm/s
- Maximum resolution : 3.8 pm
- Available : with/without reference point
- Completely non-contact design : Return error is theoretically eliminated.
- Scale : ZERO glass / alkali-free glass
- Thin head with thickness of 12 mm
- Supporting various resolutions and output modes (Depending on an interpolator such as BD96 or BD700)
- Special vacuum-compatible models available
Specifications
| Specifications | ||
|---|---|---|
| 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. | ||
| Model | BH25-RED | BH25-NED |
| Measuring length | 30 / 70 / 120 / 170 / 220 / 270 / 320 / 370 / 420 mm (ZERO glass / alkali-free glass) | |
| Overall length | Measuring length +26 mm | |
| Max. travel | Measuring length +10 mm | |
| Scale accuracy (at 20 °C) | ±0.5 µm (30 to 170 mm) ±1.0 µm (220 to 420 mm) | |
| Grating pitch | 1.0 µm | |
| Signal pitch | 0.25 µm (250 nm) | |
| Reference point | With reference point | None |
| Reference point detection direction | Single direction | None |
| Thermal expansion coefficient | 0.1×10-6/°C (ZERO glass) 3.7 x 10-6/°C (alkali-free glass) | |
| Light source | Semiconductor laser : Wavelength 790 nm, Output 6 mW | |
| Detection principle | Diffraction grating scanning system | |
| Operating temperature | +10 to +30 °C (no condensation) | |
| Storage temperature | -10 to +50 °C (humidity less than 60 %) | |
| Max. response speed | 1,800 mm/s | |
| Output signal | Interpolator connection, etc. | |
| Output resolution | Depend on the number of interpolator divisions | |
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