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Description Générale

This unit allows different practices related to the measurement of light intensity to be carried out. Photodiodes are semiconductor light sensors that generate a current or voltage when the P-N junction in the semiconductor is illuminated with light.

With Applications of Light Unit, "M44", designed by EDIBON, different practices related to the measurement of light intensity are carried out.

The unit has five different types of light sensors: photodiode, phototransistor, photovoltaic cell, photosensitive resistor and infrared sensor.

By studying the different sensors, it is possible to compare their mode of operation and determine their advantages and disadvantages.

Des exercices et pratiques guidées

EXERCICES GUIDÉS INCLUS DANS LE MANUEL

  1. Study of the equivalent electrical circuit of a photodiode.
  2. Study of the V-I characteristic of a photodiode.
  3. Study of the photovoltaic and photoconductive modes of a photodiode.
  4. Study the "ON/OFF" operation mode of a phototransistor.
  5. Measurement of light intensity using a photovoltaic cell.
  6. Study of the properties of light dependent resistors (LDR).
  7. Study of different applications using IR sensors.
  8. Study of a real application for controlling the light intensity using PID control elements.

PLUS D'EXERCICES PRATIQUES À EFFECTUER AVEC CETTE ÉQUIPEMENT

  1. Several other exercises can be done and designed by the user.

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