Name Value Unit Comment
Electrical Parameters
Re 3.00 Ohm IMORTED electrical voice coil resistance at DC
Le 0.360 mH frequency independent part of voice coil inductance
L2 0.605 mH para-inductance of voice coil
R2 1.155 Ohm electrical resistance due to eddy current losses
Cmes 584.45 uF electrical capacitance representing moving mass
Lces 5.69 mH electrical inductance representing driver compliance
Res 17.41 Ohm resistance due to mechanical losses
fs 87.35 Hz driver resonance frequency
Mechanical Parameters
(using laser)
Mms 11.833 g mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd (Sd) 11.37 g mechanical mass of voice coil and diaphragm without air load
Rms 1.166 kg/s mechanical resistance of total-driver losses
Cms 0.28 mm/N mechanical compliance of driver suspension
Kms 3.57 N/mm mechanical stiffness of driver suspension
Bl 4.50 N/A force factor (Bl product)
Lambda s 0.041 suspension creep factor
Loss factors
Qtp 0.84 total Q-factor considering all losses
Qms 5.59 mechanical Q-factor of driver in free air considering Rms only
Qes 0.96 electrical Q-factor of driver in free air considering Re only
Qts 0.82 total Q-factor considering Re and Rms only
Vas 3.1090 l equivalent air volume of suspension
n0 0.26 % reference efficiency (2 pi-radiation using Re)
Lm 85.32 dB characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom 85.89 dB nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z 13.64 % root-mean-square fitting error of driver impedance Z(f)
rmse Hx 3.14 % root-mean-square fitting error of transfer function Hx (f)
Series resistor 0.00 Ohm resistance of series resistor
Sd 88.25 平方厘米 diaphragm area
Name Value Unit Comment
HINT : Increase Fmax to 20* fs to improve impedance fitting
U pp 13.31 V peak to peak value of voltage at terminals
U ac 1.95 V rms AC part of voltage signal
U dc 0.00 V
U head 31.3 dB digital headroom of voltage signal
U SNR+D 49.5 dB ratio of signal to noise+distortion in voltage signal
fu noise 26.7 Hz frequency of noise+distortion maximum in voltage signal
I pp 3.07 A peak to peak value of current at terminals
I ac 0.45 A rms AC part of current signal
I dc -0.00 A
I head 31.3 dB digital headroom of current signal
I SNR+D 8.0 dB ratio of signal to noise+distortion in current signal
fi noise 93.0 Hz frequency of noise+distortion maximum in current signal
X pp 3.81 mm peak to peak value of displacement signal
X ac 0.62 mm rms AC part of displacement signal
X dc 0.04 mm
X head 34.0 dB digital headroom of displacement signal
fx cutoff Hz frequency of highest valid line in displacement signal
p pp 0.03 mV peak to peak value of microphone signal
p ac 0.00 mV rms AC part of microphone signal
p head 106.2 dB digital headroom of microphone signal
p SNR+D -37.4 dB ratio of signal to noise+distortion in microphone signal
fp noise 269.2 Hz frequency of noise+distortion maximum in microphone signal
f sample 6000 Hz sample frequency
N stim 16384 number of samples stimulus length
其实,都写在后面,还挺具体的.
比如第一项:
Re 3.00 Ohm IMPORTED electrical voice coil resistance at DC
就是,Re 3.00 欧姆 重要的电音圈直流阻抗
第二项
Le 0.360 mH frequency independent part of voice coil inductance
Le 0.36mH 频率无关的音圈电感
发表于 2009-1-15 22:34
两只单元都测了 以下贴附的部分参数是自己手算的两个单元的平均值)
楼主
