Calculation of coil inductance
Time:2023-03-26
Views:1117
Impedance (ohm)=23.14159F (operating frequency) Inductance (mH), set to use 360ohm impedance, so: Inductance (mH)=Impedance (ohm) ÷ (23.14159) ÷ F (operating frequency)=360 ÷ (23.14159) ÷ 7.06=8.116mH
Based on this, the number of coils can be calculated:
Number of coils=[Inductance {(18 coil diameter (inches)+(40 coil length (inches))}] ÷ coil diameter (inches)
Number of coils=[8.116 {(182.047)+(403.74)}] ÷ 2.047=Calculation formula for 19 coils of air core inductance
Calculation formula for hollow inductance: L (mH)=(0.08D. D.N.N)/(3D+9W+10H)
D ----- coil diameter
D ---- Wire diameter
H --- coil height
W --- coil width
The units are millimeters and mH, respectively..
Calculation formula for inductance of air core coil:
l=(0.01DNN)/(L/D+0.44)
Coil inductance l Unit: microheng
Coil diameter D Unit: cm
Number of coil turns N Unit: turn
Coil length L Unit: cm
Calculation formula for frequency inductance and capacitance:
l=25330.3/[(f0f0)c]
Working frequency: f0 Unit: MHZ This question: f0=125KHZ=0.125
Resonant capacitance: c Unit: PF The meaning of this question is c=500... 1000 pf, which can be determined by yourself first, or by the Q value.
Resonant capacitance: c Unit: PF The meaning of this question is c=500... 1000 pf, which can be determined by yourself first, or by the Q value.
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