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 Utilities+® User Manual
RF/Microwave Design Utility Programs
 


AIR COILS


                 Air Coils

                 Calculate the inductance, # of turns, radius, or wire diameter
                 of an air coil given any 3 of the 4 coil parameters.

                 Units: uH,inches

                 1. L (uH)
                 2. # Turns
                 3. Radius (in.)
                 4. Wire diam. (in.)

                 Choose (1-4)  [<Enter>=Quit] ? _


As an example, calculate the inductance of a 0.25 in. radius coil wound with 4 full turns, thru the middle, of AWG #34 gauge wire (diameter = 6.3 mils = 0.0063 in.).

Note: If you don't know the diameter of a given AWG, (American Wire Guage), wire size, use the Utilities+ Wire Table routine first, and then come back here.

To find the unknown inductance, enter "1" at the prompt above, then, when asked, input "4,.25,.0063" and press <Enter>.

Here is the output calculation:

                 L = 0.372 uH

Press <Enter> to return to the Main Menu.

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