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敞開式光柵尺-LIF系列

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敞開式光柵尺-LIF系列

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敞開式光柵尺-LIF系列

LIF系列高精度

Model	Basline error		Substrate and mounting	Interpolation error	Measuring length
	Accuracy grade	Intervall
LIF 471 LIF 481	± 1 μm ± 3 μm	≤ ± 0.225 μm/ 5 mm	Scale of Zerodur glass ceramic or glass, bonded with PRECIMET adhesive film	± 12 nm	70 mm to 1020 mm

LIF 471/481

Linear scale	LIF 401 R
Measuring standard* Coefficient of linear expansion	SUPRADUR phase grating on Zerodur glass ceramic or glass; grating period 8 µm αtherm = (0±0.1) · 10–6 K–1 (Zerodur glass ceramic) αtherm ? 8 · 10–6 K–1 (glass)
Accuracy grade*	±1 µm (only for Zerodur glass ceramic), ±3 µm
Baseline error	≤ ±0.225 µm/5 mm
Measuring length ML* in mm	70 120 170 220 270 320 370 420 470 520 570 620 670 720 770 820 870 920 970 1020
Reference marks	One at midpoint of measuring length
Mass	0.8 g + 0.08 g/mm measuring length

Scanning head	AK LIF 48	AK LIF 47
Interface	1 VPP	? TTL
Integrated interpolation* Signal period	– 4 µm	5-fold 0.8 µm	10-fold 0.4 µm	20-fold 0.2 µm	50-fold 0.08 µm	100-fold 0.04 µm
Cutoff frequency –3 dB –6 dB	≥ 300 kHz ≥ 420 kHz	–
Scanning frequency*	–	≤ 500 kHz ≤ 250 kHz ≤ 125 kHz	≤ 250 kHz ≤ 125 kHz ≤ 62.5 kHz	≤ 250 kHz ≤ 125 kHz ≤ 62.5 kHz	≤ 100 kHz ≤ 50 kHz ≤ 25 kHz	≤ 50 kHz ≤ 25 kHz ≤ 12.5 kHz
Edge separation a1)	–	≥ 0.080 µs ≥ 0.175 µs ≥ 0.370 µs	≥ 0.080 µs ≥ 0.175 µs ≥ 0.370 µs	≥ 0.040 µs ≥ 0.080 µs ≥ 0.175 µs	≥ 0.040 µs ≥ 0.080 µs ≥ 0.175 µs	≥ 0.040 µs ≥ 0.080 µs ≥ 0.175 µs
Traversing speed1)	≤ 72 m/min ≤ 100 m/min	≤ 120 m/min ≤ 60 m/min ≤ 30 m/min	≤ 60 m/min ≤ 30 m/min ≤ 15 m/min	≤ 60 m/min ≤ 30 m/min ≤ 15 m/min	≤ 24 m/min ≤ 12 m/min ≤ 6 m/min	≤ 12 m/min ≤ 6 m/min ≤ 3 m/min
Interpolation error Position noise RMS	±12 nm 2 nm (450 kHz)2)	–
Electrical connection*	Cable, 0.5 m, 1 m, 2 m or 3 m with 15-pin D-sub connector (male); interface electronics in the connector
Cable length	See interface description, however Incremental: ≤ 30 m; homing, limit: ≤ 10 m; (with HEIDENHAIN cable)
Voltage supply	DC 5 V ±0.25 V
Current consumption	< 175 mA	< 180 mA (without load)
Vibration 55 Hz to 2000 Hz Shock 11 ms	≤ 200 m/s2 (EN 60 068-2-6) ≤ 500 m/s2 (EN 60 068-2-27)
Operating temperature	0 °C to 50 °C
Mass Scanning head* Connecting cable Connector	For Zerodur glass ceramic scale: 25 g For glass scale: 9 g 38 g/m 140 g
* Please select when ordering 1) At a corresponding cutoff or scanning frequency 2) With –3 dB cutoff frequency of the subsequent electronics