IR position detector

LD 33211
IR position detector
IR position detector

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Opto-electronic measuring instrument for registering the oscillations of gravitation torsion balances. Measuring principle: four IR-diodes successively emit infrared light, which is reflected onto a row of phototransistors by the concave mirror mounted on the gravitation torsion balance. A microcontroller determines which phototransistors are illuminated. These measurements permit determination of the main focus of the illumination. Data are recorded using a TY-recorder, or alternatively via the RS-232 serial interface. Includes demonstration version CASSY Lab, enabling recording via a computer with Windows XP or higher.

Technical data

  • Transmitters: 4 infrared LEDs
  • Receivers: 32 phototransistors
  • Path resolution: 0.64 mm/18.5 mV ±2%
  • Output voltage: 0...2.3 V ±1.5 %
    via 4-mm sockets
  • Output current: max. 5 mA, short-circuit proof
  • Serial connection: RS 232/sub-D 25
  • Voltage supply: 12 V AC (plug-in power supply unit included) or via 4-mm sockets
  • Power consumption: approx. 3 VA
  • Dimensions: 21 cm x 11 cm x 6.5 cm
  • Weight: 320 g
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