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  • Sensor Sense: Passive Infrared-Motion Sensors
    include galliumnitride, caesium nitrate, and lithium tantalate. Skin temperature is approximately 34 C, typically higher than background temperatures. As a person walks past the sensor, their higher skin temperature creates a greater charge in the pyroelectric material. An amplifier circuit boosts
  • Single electron toggles transistor on and off
    signal, Vac, superimposed on a dc bias voltage, V. The circuit detects the net current, , with a current amplifier. The third electrode, G, is floating. The device, dubbed the single-electron transistor (SET) by its developers Robert Blick at the University of Wisconsin-Madison and Dominik Scheibe

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