heat is transferred from one place to another in one of three ways; conduction, convection, and radiation. conduction is the proses of transferring heat from molecule to molecule in a substance.
convection is the process of transmitting heat by means of the movement of heated meter from one place to another. convention thus take a place in liquid and glasses. a room is heated by means of convection by circulating warm air through the the room. this bring us to radiation.
heat waves and light waves are of the same nature; they are both electromagnetic radiations thats differ only in wave length. heat waves near the radio portion of the spectrum are called the infrared.
in here we will construct an infrared flame detector, which can sense a match or flame up to 3 feet away. and learn how to construct a freeze alarm, an over temperature monitor, and an analog data logger for sending temperature data remotely.
more advance project include an LCD data thermometer, a night vision viewer, and an infrared motion detector.
click here for project,
1. infrared flame detector
2. freeze alarm
3. over temperature monitor
4. analog data logger
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