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Galvanometer vs Photodetector - What's the difference?

galvanometer | photodetector |

As nouns the difference between galvanometer and photodetector

is that galvanometer is a device used to indicate the presence and direction of a small electric current, especially used to detect a null or balanced condition in a bridge circuit while photodetector is any device used to detect electromagnetic radiation.

galvanometer

English

(wikipedia galvanometer)

Noun

(en noun)
  • (physics) A device used to indicate the presence and direction of a small electric current, especially used to detect a null or balanced condition in a bridge circuit.

    • Derived terms

    * cosine galvanometer * sine galvanometer * tangent galvanometer

    photodetector

    English

    Noun

    (wikipedia photodetector) (en noun)
  • Any device used to detect electromagnetic radiation

    • Synonyms

    * light-sensitive cell * light-sensitive detector * light sensor photodevice * photodevice * photoelectric detector * photosensor

    See also

    * photoconductive cell * photodiode * photoresistor * photoswitch * phototransistor * phototube * photovoltaic cell