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Topic: How do I calculate the tension for wound strings? |
Jim Bates
From:
Alvin, Texas, USA
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Posted 28 Mar 2007 5:10 pm |
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I can use the standard 'string equation' for calculating tensions and frequencies for plain strings, but what is the equation for wound strings? What about double wound strings?
Thanx,
Jim |
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Ray Montee
From:
Portland, Oregon (deceased)
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Posted 28 Mar 2007 6:24 pm ONLY Curious...........
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Jim: Not attempting to second guess you or to infer anything derog by my question but:
WHY DO YOU CARE? What is it that you know that the rest of us don't?
Just curious........ |
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Jim Bates
From:
Alvin, Texas, USA
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Posted 28 Mar 2007 6:45 pm
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I like to experiment, and before I build up a test jig, or try something a nice guitar, I want to estimate if I am screwing around with the tension and causing an unbalance. There are equations out there somewhere for the wound strings that must be simple to use, which is what I want.
Thanx,
Jim |
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Lynn Oliver
From:
Redmond, Washington USA * R.I.P.
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Posted 28 Mar 2007 7:50 pm
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Jim, if you look at the D'Addario web site you will find a PDF file with the equations and pertinent data for different D'Addario strings.
I've folded all of that into a simple spreadsheet for my own use. You're welcome to a copy if you know enough about Excel to work with it.
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Lynn Oliver
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Gary Anwyl
From:
Palo Alto, CA
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Jim Bates
From:
Alvin, Texas, USA
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Posted 30 Mar 2007 4:22 am
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Thanks for all the inputs. The tension of wound strings should pretty much follow the same as for plain strings - just measure the diameter of the core wire, since the wrapping should have little or no effect in tension.
What I am after is the simple equation, if any, for calculating the frequency of a wound (or double wound string), and the resulting tension to get get that frequency. The other variable is the length of the winding, such as in a piano string where the ends of the wound string are plain and the windings are different lengths. I will contact the Mapes string company and see what they have.
Thanx,
Jim |
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b0b
From:
Cloverdale, CA, USA
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Posted 30 Mar 2007 7:04 am
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As I understand it, the tension formula doesn't change. You have to know the diameter of the core, though. The tension is based on the core wire, not on the windings.
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