[SOLVED] How many turns On Coil

[sssuneth]

Number Of turns in a COIL

Hello there

Its a air core coil I am not too sure how to calculate the
number of turns I have to wind.

Specs are below

Height : 4mm
Outside D: 9.5mm
Inside D :7mm
Coil wire thickness : 40 AWG / 0.08mm
Coil resistance : 55 Ohms
Coil weight : 0.7g

Important figures highlighted. I have made a detachable bobbin.U sing self bonding wire.

How can I calculate the number of turns that i would require to make this coil

Thank you

 

[IanP]

Re: Number Of turns in a COIL

Hello there

Its a air core coil I am not too sure how to calculate the
number of turns I have to wind.

Specs are below

Height : 4mm
Outside D: 9.5mm
Inside D :7mm
Coil wire thickness : 40 AWG / 0.08mm
Coil resistance : 55 Ohms
Coil weight : 0.7g

Important figures highlighted. I have made a detachable bobbin.U sing self bonding wire.

How can I calculate the number of turns that i would require to make this coil

Thank you

**broken link removed**

:wink:
IanP

 

[szhighstar]

first you need confirm inductance value.

 

[chuckey]

You know the weight of the wire. Subtract 5% for the enamel will give you the weight of the copper. Look up its specific gravity and you find its volume. You know its diameter, so you can calculate its length. You know the mean diameter of the completed coil, so using that and take of another 5% for the wire not packing properly, you can calculate the number of turns.
Frank

 

[goldsmith]

Hi
I think , this thread can help !
see below , please :
https://www.edaboard.com/threads/229615/

Best Wishes
Goldsmith