HiVi B3s voice coil inductance - How to calculate? - diyAudio
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Old 15th January 2009, 05:21 AM   #1
chylld is offline chylld  Australia
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Default HiVi B3s voice coil inductance - How to calculate?

I'm trying to figure out a zobel network for my hivi b3s system, and for that I need to know the inductance of the b3s voice coil. I have lots of T/S parameters (below) but no mention of Le/Lvc

Nominal Impedance (Z)(ohms) : 8
Resonance Frequency (Fs)(Hz) : 80
Nominal Power Handling (Pnom)(W) : 15
Sensitivity (2.83v/1m)(dB) : 82
Weight (M)(Kg) : 0.53
VC Diameter (mm) : 20 CCAW
DC (Re)(ohms) : 6.5
VC Length (H)(mm) : 9
VC Former : Kapton
VC Layers : 2
Magnet System : Shielded Ferrite
Force Factor (BL)(N/A) : 2.9
Gap Height (He)(mm) : 3.0
Linear Excursion (Xmax)(mm) : 3.0
Suspension Compliance (Cms)(uM/N) : 1260
Mechanical Q (Qms) : 4.29
Electrical Q (Qes) : 1.19
Total Q (Qts) : 0.93
Moving Mass (Mms)(g) : 3.1
Effective Piston Area (Sd)(m2) : 0.0030
Equivalent Air Volume (Vas)(L) : 1.6
Cabinet Type : Sealed
Recommended Box Volume(Vb)(L) : 2
-3dB Cut-Off Frequency(F3)(Hz) : 80

I can't find anything in the manufacturer's documentation either.

Is there any way to calculate the inductance using the parameters above? Or must I buy an LCR meter?
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Old 15th January 2009, 02:20 PM   #2
squib is offline squib  United States
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Default Zaph lists as 0.43 mH

Zaph lists the coil inductance as 0.43 mH. see here: http://www.zaphaudio.com/smalltest/compare.html

Note, you'll have to select the correct driver to see the T/S parameters.
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Old 15th January 2009, 08:10 PM   #3
chylld is offline chylld  Australia
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Default Re: Zaph lists as 0.43 mH

Quote:
Originally posted by squib
Zaph lists the coil inductance as 0.43 mH. see here: http://www.zaphaudio.com/smalltest/compare.html

Note, you'll have to select the correct driver to see the T/S parameters.

awesome, thanks!
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