如何规定扬声器系统的品质? - Klippel GmbH

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音圈电感量 Voice Coil Inductance L e(x) (x) 如何规定扬声器系统的品质? How to Specify Sound Quality ?, 99 1,00 0,75 0,50 0,25 voice coil 0,00 这个参数表示 This parameter shows •电感的对称性 asymmetry of inductance mH inductance -7,5 -5,0 -2,5 0,0 x[mm] 2,5 5,0 7,5 •最佳磁回位置optimal size and position of short cut ring www.klippel.de Full Dynamic Measurement Suspension Part Measurement (SPM) Large Signal Identification (LSI) Long-term Power Testing (PWT) Motor-Suspension Check QC (MSC) 如何规定扬声器系统的品质? How to Specify Sound Quality ?, 100 Advantages: • Loudspeaker under normal working conditions • Audio-like stimulus • On-line measurement Disadvantage: • Large Signal Idenification (LSI) requires nonlinear signal processing www.klippel.de
Output Power amplifier Vented-box System ICP1 ICP2 PWR OUT1 OUT2 MIC1 LINE1 LINE2 MIC2 P U S H Input 不需要额外的感应器 PUSH PUSH No Additional Sensor Required Analyzer with electrical sensors Production Analyzer 如何规定扬声器系统的品质? How to Specify Sound Quality ?, 101 顺性系数 Compliance Bl(X) N/A KLIPPEL 3,5 3,0 2,5 2,0 1,5 Clim = 75 % 1,0 0,5 0,0 -4 -3 -2 -1 -0 1 2 3 4 > X c X limited by Cms(x) 10 % THD I 0 Computer 如何规定扬声器系统的品质? How to Specify Sound Quality ?, 102 • 在连接端仅仅测量电压和电流 Only voltage and current is monitored at the terminals • 换能器安装好了也能够检测出驱动和悬边Motor 驱动和悬边 Motor and suspension can be checked when the transducer is mounted in enclosure • 可以通过长线材测量可以通过长线材测量Measurement Measurement via long cables possible • 对环境噪声的免疫 Xmax和其他位移限制 Xmax and other Displacement Limits 耦合系数 Force Factor Cms(X) Cms (-X) mm/N 0,9 0,8 0,7 0,6 KLIPPEL 0,5 0,4 0,3 Blim = 82 % 0,2 0,1 0,0 -4 -3 -2 -1 -0 1 2 3 4 > X Bl X limited by Bl(x) 10 % IMD [Ohm] 25 20 15 10 5 0 minimum X max 產生不超過10%的THD或10%的IMD Generating not more than 10 % THD or 10 % IMD Full immunity against ambient noise 自感 Inductance x= 0 mm Magnitude of electric impedance Z(f) x = - 4 mm x = + 4 mm KLIPPEL Zlim = 10 % 101 102 Frequency [Hz] 103 104 X L X limited by Le(x) 10 % IMD www.klippel.de Doppler X D X limited by Doppler 10 % IMD www.klippel.de
Page 1 and 2: 如何规定扬声器系统的品
Page 3 and 4: 测量Measurement 模型Modeling
Page 5 and 6: Input Signal • Magnet • Coil
Page 7 and 8: 扬声器的设计始于声学目
Page 9 and 10: 測試音樂信號 Music,test signa
Page 13 and 14: IEC 60268-5規定的特性參數 60
Page 15 and 16: Optimal Stimulus: Pink noise 最佳
Page 17 and 18: 输入讯号 Input Signal Input Sig
Page 19 and 20: SPL [dB] 85 80 75 70 65 60 55 50 45
Page 21 and 22: 振幅 Amplitude X [mm] 30 10 3 1 0
Page 23 and 24: 新的输出特性 New ew Output-Ba
Page 25 and 26: 输入讯号 Input Signal Input Sig
Page 27 and 28: 扬声器缺陷: 扬声器缺陷 :
Page 29 and 30: SPL fundamental SPL 2nd 3rd Regular
Page 31 and 32: [dB] 20,0 17,5 15,0 12,5 10,0 7,5 5
Page 33 and 34: 随机噪声是个有价值的征
Page 35 and 36: uzzing screen Air leakage 空气泄
Page 39 and 40: 揚聲器系統設計 Loudspeaker S
Page 41 and 42: Cone Scanning Techniques振膜掃
Page 43 and 44: 90 80 70 60 50 40 30 Power Level +
Page 45 and 46: Acoustical Cancellation 如何规
Page 47 and 48: Simple Simple ~ Signal source Ampli
Page 49: 柔顺性 Compliance Cms(x) ms(x) x
Page 53 and 54: [Percent] 12,5 10,0 單音激勵 Si
Page 55 and 56: 什么是不良的驱动单元? Wha
Page 57 and 58: 6,0 Bl N/A 4,0 3,0 2,0 1,0 0,0 x1 x
Page 59 and 60: AAL [dB] 80 75 70 65 60 55 50 45 40
Page 61 and 62: 能量FEA Thermal FEA 集总参数
Page 63 and 64: QC 悬边特性用来描述特别
Page 65: 概要 Summary ummary • 音频系

如何规定扬声器系统的品质? - Klippel GmbH

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