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敞開式光柵尺-PP系列

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敞開式光柵尺-PP系列

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PP系列用于雙坐標(biāo)測量

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

	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