Allen Inspection Company owner Jeff Cardile, president of Lookout Capital Inspections answers the question, What is Infrared?  Part 3

Today, we are going to discuss the physics of Heat: The physics of heat consist of: Conduction, Convection, and Radiation (CCR).

Conduction, Convection, And Radiation

1. Conduction: Heat is transferred by means of direct contact.  Conducted heat transfer occurs when heated atoms transfer the heat to nearby atoms through each others atomic bonds.  There are factors that affect conductivity.  These factors are: the type of material, the cross section, the temperature difference, the distance/thickness of the path of transfer.

2. Convection: Heat is transferred by the movement of fluids, gas or liquids.  Heat is transferred through fluid movement which is a result of direct contact and begins with conduction.  Convection can be effected or caused by condensation and evaporation.  A circular air flow motion is created.

3. Radiation: Heat is transferred by electromagnetic waves.  All objects radiate some amount  of infrared radiation.  The distance in the wavelength are used to measure the temperature of objects.  The shorter the wavelength the hotter the object.  The longer the wavelength the cooler the object.  This is the main use of Thermal Imaging.  The measurement/differences of objects temperatures that are being scanned.

In our next blog, we are going to discuss the physics of Infrared.

Allen Inspection Company is owned by Jeff Cardile.  Jeff is a Certified Thermographer.  Lookout Capital Inspections is proud to be a leader in the inspection industry.  Call Jeff at (469) 853-7336 for any of your inspection needs.