海德汉LIF系列敞开式光栅尺

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