transducer cone formula

[tbulhead]

What is the diameter of the circle from a 20 degree transducer cone at 5 feet 10  feet, 15, 20?  What is the Math formula to figure it out?

[NY_labman]

Using Radius = Tan(20) times depth should work.  Tangent(20) = 0.364, so at 10ft, the radius would be 3.64ft and the diameter would be 7.28ft.  Hope this helps.

[benny8]

Tan20degrees=x/depth, x=radius, multiply the radius x2 to get the diameter. So, a 10' depth would be Tan20degrees(.394)=x/10, or x=3.64'. Your diameter would be about 7'3". LOL. Someone beat me to it while I was typing.

[hardwater diehard]

http://www.vexilar.com/blog/2014/08/28/choosing-a-transducer-beam-angle

[finchasr]

Here's another:

http://www.furunousa.com/LearningCenter/Transducer-Beam-Angle-Calculator.aspx

[Woodsman]

Here's another:

http://www.furunousa.com/LearningCenter/Transducer-Beam-Angle-Calculator.aspx

X 2

[SolarBoy]

Using Radius = Tan(20) times depth should work.  Tangent(20) = 0.364, so at 10ft, the radius would be 3.64ft and the diameter would be 7.28ft.  Hope this helps.

Shouldn't it be 10deg instead of 20? If beam 20deg wide this calc would give you diameter

[don519]

[don519]

Hopefully that is helpful its a lot easier the doing the math

[NY_labman]

I stand corrected.  It should be Tan(10).  Thanks for catching that!