扬声器T/S参数(Thiele – Small)中英文汇总

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摘要

结合实例详细介绍扬声器T/S(Thiele – Small)参数中英文详细解释。

扬声器T/S参数(Thiele – Small)中英文汇总

T/S参数中文解释

BL: 单体的动力即力系数,单位为 特斯拉·米(TM)

Fo: 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教程):

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

  • 本文由 发表于 2019年11月21日
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