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敞開式光柵尺-PP系列
Model | Accuracy grade | Substrate and mounting | Interpolations error | Measuring length |
---|---|---|---|---|
PP 281 | ± 2 μm | Glass grid plate, with full-surface bonding | ± 12 nm | Measuring range 68x68mm |
PP 281 R | |
Measuring standard Coefficient of linear expansion | Two-coordinate TITANID phase grating on glass; grating period 8 µm αtherm ? 8 · 10–6 K–1 |
Accuracy grade | ±2 µm |
Measuring range | 68 mm x 68 mm, other measuring ranges upon request |
Reference marks1) | One reference mark in each axis, 3 mm after beginning of measuring length |
Interface | 1 VPP |
Signal period | 4 µm |
Cutoff frequency –3 dB | ≥ 300 kHz |
Traversing speed | ≤ 72 m/min |
Interpolation error Position noise RMS | ±12 nm 2 nm (450 kHz)2) |
Electrical connection | 0.5 m cable with 15-pin D-sub connector (male); interface electronics in the connector |
Cable length | See interface description, but ≤ 30 m (with HEIDENHAIN cable) |
Voltage supply | DC 5 V ±0.25 V |
Current consumption | < 185 mA per axis |
Vibration 55 Hz to 2000 Hz Shock 11 ms | ≤ 80 m/s2 (EN 60 068-2-6) ≤ 100 m/s2 (EN 60 068-2-27) |
Operating temperature | 0 °C to 50 °C |
Mass Scanning head Grid plate Connecting cable Connector | 170 g (without cable) 75 g 37 g/m 140 g |
1) The reference mark signal deviates in its zero crossovers from the interface specification (see Mounting Instructions) 2) With –3 dB cutoff frequency of the subsequent electronics |
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