扬声器T/S参数(Thiele
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T/S参数中文解释:
BL:扬声器单元的动力即力系数,单位为 特斯拉·米(TM)
Fo:扬声器单体在自由大气下的谐振频率或叫Fs,单位为赫兹(HZ)
Foa:单体在加质量(Ma)后的谐振频率或叫Fsa,单位为赫兹(HZ)
Fc:单体装箱后的谐振频率,单位为赫兹(HZ)
Fct:单体装入测试箱后的谐振频率,单位为赫兹(HZ)
Mmd:单体振动系的等效质量,单位为克或千克(g或Kg)
Mmr:单体纸盆空气的辐射质量负载,单位为克或千克(g或Kg)
Mms:包括空气的辐射质量的总的振动系的等效质量或Mo,单位为克或千克(g或Kg)
Ma:测试砝码(通常为已知质量的粘土),单位为克(g)
Sd: 纸盆的有效振动面积
Cmb:测试音箱的顺性,单位为(M/N)
Cms:单体的机械顺性或Co,单位为(M/N)
Qms:单体的机械Q值
Qes:单体的电气Q值
Qts:单体的总Q值或Qo
Qect:测试箱内单体的电气Q值
Vas:与单体顺性相当的空气体积,单位为升(L)
Vab:未填充吸音棉的测试箱体积,单位为升(L)
Re:音圈的直流阻抗即Revc或叫DCR,单位为欧姆(Ohm/Ω)
ACR:公称阻抗即交流阻抗,在扬声器阻抗曲线峰值后最低点所对应的阻抗,单位为欧姆(Ohm/Ω)
Zmax: 单体阻抗曲线峰点对应的阻抗值,单位为欧姆(Ohm/Ω)
No:参考效率即η,以百分比为单位(%)
L evc:单体音圈的电感,单位毫亨(mH)
SPLo:音压水准( Sound Pressure Level)或叫SPL或So,单位为分贝(dB)
Levc:音圈的电感
实例说明:
这里直接拿Faital的一款3寸全频/中低音扬声器单元3FE25的技术参数来说明(后面会拿这个参数来做LEAP仿真实例教程,注意各参数的单位):
Fs - 谐振点效率 110 Hz
Re - 直流阻抗 6.2 Ohm
Qes - 扬声器的电品质因数值 0.80
Qms - 扬声器的机械品质因数值. 4.1
Qts - 扬声器的总品质因数值. 0.7
Vas - 喇叭的有效容积 1.13 dm^3 (0.04 ft^3)
Sd - 振动面积 30.2 cm^2 (4.68 in^2)
Xmax - 最大位移 1.83 mm
Xdamage - 振幅峰值 7.9 mm
Mms - 振动质量 2.4 g
Bl - 磁力 3.6 N/A
Le - 单元电感值 0.07 mH
Mmd - 有效质量 2.3 g
Cms - 力顺 0.87 mm/N
Rms - 机械力阻 0.4 Kg/s
Eta Zero 0.18 %
EBP - 效率带宽积 138 Hz
T/S参数英文详细解释:
Fs: Resonant frequency of driver including air load
Vas: Volume of air having the same acoustic compliance as driver suspension
Re: DC electrical resistiance of voice coil
Qms: Q of driver at FS considering mechanical losses only
Qes: Q of driver at FS considering electrical resistance only
Qts: Q of driver at FS considering all driver losses
Bl : Motor strength, product of B times I
DB: SPL Acoustic pressure product by the driver at 1m when driven by 2.83V
Sd: Effective surface area of the driver cone
Cms: Mechanical compliance of driver suspension
Mms: Mechanical mass of driver cone assembly including air load
Rms: Mechianical resistance of driver suspension losses
Cas: Acoustic compliance of driver suspension
Mas: Acoustic mass of driver cone assembly including reactive air load
Ras: Acoustic resistance of driver suspension losses
Cmes: Electrical capacitance representing the driver total moving mass
Lces: Electrical inductance representing the driver mechanical compliance
Res: Electrical resistance representing the driver mechanical losses
Rat:Total acoustic resistance of driver
Rmt: Total mechanical resistance of driver(suspension losses+electrical reflected)
Mmd: Mechanical mass of driver cone assembly excluding air load
Zmin: Minimum impedance in the frequency range above FS
Zmax: Impedance at Fs
Zavg: Average of impedance modulus over the measured frequency limits
η: Efficiency
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