LIP 471/481

    Specifications

    LIP 481

    LIP 471

    Measuring standard*

    Coefficient of linear expansion

    DIADUR phase grating on Zerodur glass ceramic or glass; grating period 4 µm

    αtherm = (0±0.1) · 10–6 K–1 (Zerodur glass ceramic)

    αtherm  8 · 10–6 K–1 (glass)

    Accuracy grade*

    ±1 µm (higher accuracy grades upon request)

    ±0.5 µm

    Baseline error

    ±0.175 µm/5 mm

    Measuring length ML* in mm

    70 120 170 220 270 320 370 420

    Reference marks*

    LIP 4x1 R: One at midpoint of measuring length

    LIP 4x1 A: None

    Interface

      1 VPP

    TTL

    Integrated interpolation*

    Signal period

    2 µm

    5-fold

    0.4 µm

    10-fold

    0.2 µm

    Cutoff frequency –3 dB

    300 kHz

    Scanning frequency*

    Edge separation a

    200 kHz

    0.220 µs

    100 kHz

    0.465 µs

    50 kHz

    0.950 µs

    100 kHz

    0.220 µs

    50 kHz

    0.465 µs

    25 kHz

    0.950 µs

    Traversing speed

    36 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

    ±7 nm

    2 nm (450 kHz)1)

    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, but 30 m (with HEIDENHAIN cable)

    Voltage supply

    DC 5 V ±0.25 V

    Current consumption

    < 190 mA

    < 200 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 40 °C

    Mass Scanning head

    Linear scale

    Connecting cable

    Connector

    LIP 4x1 A: 25 g, LIP 4x1 R: 50 g
    (each without cable)

    5.6 g + 0.2 g/mm measuring length

    38 g/m

    140 g

    * Please select when ordering

    1) With –3 dB cutoff frequency of the subsequent electronics