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The Science of Sensor Faucets

The Science of Sensor Faucets. Genevieve Toh (7) Class 113. Sensor Faucets. Use sensor to detect hands  automatically dispense water for a preset amount of time. Mechanism. Solenoid valve Electrical energy  Kinetic energy Starts or stops water flow

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The Science of Sensor Faucets

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  1. The Science of Sensor Faucets Genevieve Toh (7) Class 113

  2. Sensor Faucets Use sensor to detect hands automatically dispense water for a preset amount of time.

  3. Mechanism • Solenoid valve • Electrical energy  Kinetic energy • Starts or stops water flow • Set flow duration, water temperature • Infrared sensor • Detects presence of hands • Sends electronic sensor to solenoid valve • Power source • Mains or batteries • Body shell • Varied designs and styles

  4. Senor eye beams out an infrared signal range about 20-26cm wide. When place hand inside sensor range, sensor detects it and send electronic signal via wire to solenoid.

  5. Solenoid converts EE to KE and opens valve. Water is channelled through flexible hose out of faucet. Flow duration pre-set.

  6. Sensor soap dispenser &toilet flush

  7. References • Prader J. (2011). How do hands-free faucets work? Retrieved April 12, 2012 from http://www.ehow.com/info_8664784_do-handsfree-faucets-work.html • Autotaps Limited. (2006). Benefits of electronic sensor water taps. Retrieved April 12, 2012 from http://www.autotaps.com/benefits-of-electronic-taps.html • Coxworth B. (2011). Hands-free faucets not necessarily better, say scientists. Retrieved April 12, 2012 from http://www.gizmag.com/hands-free-faucets-not-necessarily-better/18301/

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