Infrared

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Infrared

  1. 1. Introduce<br />Arranged by:<br /><ul><li>DeraPutriIhsani
  2. 2. Devi AnastasyaPutri
  3. 3. Dina Arum Pratiwi</li></li></ul><li>Background<br />Wave infrared rays firstly found by William Herschel in 1880.<br />Continued by Young, Beer, Lambert and Jullius by using spektroscopy.<br />Usually used for medicine and many others<br />
  4. 4. HISTORY OF WAVE INFRARED RAYS<br />In 1880<br />In 1900<br />In 1856<br />Astronomers used thermocouples (devices that convert heat into electric current) to detect infrared radiation from other objects<br />Infrared radiation successfully detected from Jupiter and Saturn and from some bright stars such as Vega and Arcturus.<br />Sun emits infrared radiation<br />
  5. 5. EXPLANATION<br />An electromagnetic rays that longer than visible light rays<br />INFRARED<br />Frequency between 500 - 4x105 hertz<br />Wave length from 7,8x10-4 until 1 mm<br />The infrared light will be invisible but the resulting heat radiation still can feel or detect<br />
  6. 6. CLASIFICATION<br />Near infrared<br /><ul><li> Wavelength = 7,8 x 10-4 until 1,4 x 10-3 mm</li></ul>Short wavelength infrared<br /><ul><li>wavelength = 1,4x10-3 until 3x10-3 mm</li></ul>Mid wavelength infrared<br /><ul><li> wavelength = 3x10-3 until 8x10-3 mm</li></ul>Long wavelength infrared<br /><ul><li> wavelength = 8x10-3 until 1,5x10-2 mm</li></ul>Far infrared<br /><ul><li> wavelength = 1,5x10-2 until 1 mm</li></li></ul><li>CHARACTERISTIC OF INFRARED<br />Does not appear in human eyes<br />Cannot penetrate opaque material<br />Can formed by the component that produce heat<br />Wavelength have the opposite relation or inversely proportional to the temperature<br />
  7. 7. INFRARED WORK<br />Transform into code as binary data package<br />Received by infrared<br />Energy of light<br />Signal sent by the sender<br />Electrical signal pulse<br />Can take benefits for human <br />The receiver of infrared should have:<br /><ul><li> High sensitivity
  8. 8. Fast response time</li></li></ul><li>TO GET INFARED RAYS<br />PRODUCED BY :<br />The electrons in molecules that vibrate cause of heating<br />
  9. 9. APLICATION<br />Health<br /> activate water molecule in body and increasing metabolism <br />2. Night vision<br /> infrared is used in night vision equipment when there is insufficient visible light to see<br />Thermograph<br />to determine the temperature object if the emissivity is known<br />4. Tracking<br />use the emission from the target of electromagnetic radiation in the infrared part of the spectrum to track it<br />5. Heating<br />infrared rays can be used as a deliberate heating source <br />
  10. 10. 6. Communication<br /> infrared lasers are used to provide the light for optical fiber communications system<br />7. Spectroscopy<br /> is a technique to identify molecules by analysis of their constituent bonds<br />Meteorology<br /> weather satellites equipped produce infrared image which can use to determine clouds heights and types<br />9. Climatology<br /> in the field climatology atmospheric radiation is monitored to detect trends in the energy between earth and atmosphere<br />Astronomy<br /> observe object of the electromagnetic spectrum <br />
  11. 11. CONCLUSION<br />Infrared rays found by William Herschel in 1880, this ray have wavelength between 7,8 x 10-4 until 1 mm. it has advantage for many kinds of subject in our life such as in health, astronomy, terminology, etc. But usually use protective personal equipments when touching with strong infrared because it danger for health especially for our eyes, infrared rays can produce by the vibrated molecule that caused by heating<br />

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