1、 IEC/TS 60318-7 Edition 1.0 2011-02 TECHNICAL SPECIFICATION Electroacoustics Simulators of human head and ear Part 7:Head and torso simulator for the measurement of hearing aids IEC/TS 60318-7:2011(E)Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-20
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10、n or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distri
11、bution is permitted.Uncontrolled when printed.IEC/TS 60318-7Edition 1.0 2011-02TECHNICAL SPECIFICATION Electroacoustics Simulators of human head and ear Part 7:Head and torso simulator for the measurement of hearing aids INTERNATIONAL ELECTROTECHNICAL COMMISSION VICS 17.140.50 PRICE CODEISBN 978-2-8
12、8912-379-7 Registered trademark of the International Electrotechnical Commission Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TS 60318-7 IEC:201
13、1(E)CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Construction.11 4.1 General.11 4.2 Geometrical dimensions of the manikin.11 4.2.1 Torso.11 4.2.2 Head.18 4.2.3 Pinna.24 4.2.4 Ear simulator.28 4.2.5 Materials.29 4.2.6 Markings.29 4.2.7 Tolerances.2
14、9 4.3 Acoustical characteristics of the manikin.29 4.3.1 Free field frequency response.29 4.3.2 Tolerances.29 4.3.3 Openings.30 5 Calibration.30 5.1 Atmospheric reference conditions.30 5.2 Calibration method.30 5.2.1 General.30 5.2.2 Test space and measurement equipment.30 5.2.3 Measurement of sound
15、 pressure level.31 5.2.4 Alignment of manikin azimuth and elevation.31 5.2.5 Test for sound leakage.31 6 Maximum permitted expanded uncertainty of measurements.32 Annex A(informative)Ear canal sound pressure ratio.34 Bibliography.35 Figure 1 Manikin geometrical references.9 Figure 2 Coordinate schem
16、e for azimuth and elevation angles.10 Figure 3 Illustration of manikin head and torso dimensions.12 Figure 4 Cross-sections of torso(tolerance 4 mm).17 Figure 5 Cross-sections of head(tolerance 2,5 mm).23 Figure 6 Illustration of manikin pinna dimensions.24 Figure 7 Cross-sections of right pinna(tolerance 1,5 mm).28 Table 1 Head and torso dimensions for the manikin and average human data.12 Table 2 Pinna dimensions for the manikin.24 Table 3 Free field frequency response of the manikin.32 Tab
