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BHBH20-RE / BH20-NE (With / Without reference mark)0 pages
BH20-RE / BH20-NE
nnnn(With / Without reference mark)
nnnnCompact, reflective rotary Laserscale featuring high accuracy,
nnnnhigh resolution and high response speed.
nnnnIdeal for high-resolution angle measuring in HDD manufacturing equipment,
nnnnprecision measuring instruments, and aspheric surface processing machines.
nnnn• Signal wavelength : 250nm
nnnn• High-speed response : 1,500mm/s (When using analog output)
nnnn700mm/s(When using interpolator BD96)
nnnn160 min1 (when using r=41mm scale)
nnnn555 mirr1(when using r=12mm scale)
nnnn• High resolution : 4,294,967,296 pulses/rotation
nnnn(when using r=41mm scale, divisions=4096)
nnnn3.017 X 10~4sec (when using r=41mm scale)
nnnn1.46nrad (when using r=41mm scale)
nnnn• Available with/without reference point
nnnn• Thin head with thickness of 12mm
nnnn• Interpolators with various resolutions and output modes available
nnnn• Special nonmagnetic and vacuum-compatible models available
nnnni.
nnnn^Contact us directly for detail specifications
nnnnExternal Dimensions
nnnn• BH20-NED
nnnnMain specifications
nnnnDetection heac
nnnnModel | BH20-RED BH20-NED | |
Detection system | Diffraction grating scanning system | |
Light source | Semiconductor laser with power of 6mW or less and wavelength of 790nm | |
Reference point | Single reference point; single -direction detection None | |
Grating pitch | 1.0\im | |
Signal pitch | 250^im | |
Reference point | With reference point | None |
Direction of starting point detectior | For one | None |
Scale | Linear scale : 7 to 18mm (scale : Ni-Co or Si ) Rotary scale : Radius 6.016, 9.454, 12.032, 27.073, 36.097mm (rotary scale Ni-Co) | |
Vlaximum response speec | 1,500mm/s(When using analog output),700mm/s(When using interpolator BD96) | |
Operating temperature range | +10 C to +30 C no condensation. Avoid operating under high humidity. | |
Storage temperature range | ±0°C to +50°C no condensation. Avoid operating under high humidity | |
-ilm scale (BE10:
nnnnDetection radius | 12.032mm | 27.073mm | 36.097mm | 41.723mm | |
Detection track | Max.radius | 13.532mm | 28.573mm | 37.597mm | 43.523mm |
Min.radius | 10.532mm | 25.573mm | 34.597mm | 40.597mm | |
External forrr | hternal diameter | 7.7mm | 19.77mm | 29.00mm | 34mm |
External diameter | 13.45mm | 28.57mm | 37.60mm | 43.523mm | |
Scale diameter | 200mm | 590mm | 770mm | 870mm | |
Number of output pulse of one rotation | 302400 | 680400 | 907200 | 1048576 | |
Maximum response speed * | 1190 min" | 529 min" | 396 min" | 343mln" | |
'When using cable length 1 m and Analog output. However, the Max. response speed is limited depending on the cable length
nnnn19
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