Spot Galvanometer

Cambridge Scientific Instrument Co.; Cambridge

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  • Year
  • 1950 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 356842

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 220 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: Spot Galvanometer - Cambridge Scientific
  • Shape
  • Tablemodel, slant panel.
  • Dimensions (WHD)
  • 250 x 100 x 250 mm / 9.8 x 3.9 x 9.8 inch
  • Notes

  • The Cambridge Spot Galvanometer is a highly sensitive instrument designed to measure minute electrical currents.

    Its key feature is its ability to magnify tiny movements through a unique optical system:

    • A beam of light is reflected from a mirror onto a distant scale.
    • As the mirror rotates, the light spot moves across the scale, acting as a long, weightless pointer that greatly amplifies the small mirror rotation.
    • This precise movement of the light spot enables extremely accurate measurements of even the smallest currents, far surpassing the sensitivity of instruments with physical pointers.

    This specific galvanometer model features:

    • Scales ranging from 0 to 100 and 50 to 0 to 50.
    • No tuning wheel on the front.
    • A top-mounted switch.
    • Two terminals at the back.
    • An external power connection for the spot lamp.
  • Author
  • Model page created by Heribert Jung. See "Data change" for further contributors.

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