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Electrical Transducers: Thermistors and Photoresistors in Action

Learn about electrical transducers and how they convert physical properties into electrical signals with activities exploring temperature and illumination measurements using thermistors and photoresistors.

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Electrical Transducers: Thermistors and Photoresistors in Action

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  1. Lab #10 Electrical Transducers

  2. Transducers • Any device that translates a physical property into an electrical one (or vice versa) • Thermistor – changes temperature into resistance • Photoresistor – changes illumination into resistance

  3. Lab Activities • Activity #1 – Temperature Measurements • Uncompensated • Using DMM special probe (see data sheet in class folder) • Compensated (with linearizing resistor) • Activity #2 – Illumination Measurements • Resistance measurements • Instrumentation amplifier (DC and AC outputs)

  4. Go!

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