L31 电声器件 标准查询与下载

ANSI/ASA S1.15-2-2005 美国国家标准测试传声器.第2部分:用互易技术对实验室标准传声器进行压力校准的主要方法

This Standard specifies a primary method for the calibration of microphones by the reciprocity technique. The specifications are intended to ensure that primary calibration with the reciprocity technique can attain the highest accuracy. The technical requirement of this American National Standard is identical to International Standard IEC 61094-2: 1992, "Measurement microphones -- Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique". Various improvements have been made to include recent technical information.

American National Standard Measurement Microphones - Part 2: Primary Method for Pressure Calibration of Laboratory Standard Microphones by the Reciprocity Technique

ITU-T P.57-2005 仿真耳朵

This Recommendation specifies the artificial ears for telephonometric use. Three types are recommended, covering the different transducers, types, sizes and technologies.

(Pre-Published) Artificial ears

ANSI S1.15 Part 2-2005 测试传声器.第2部分:用互易技术对实验室标准传声器进行压力校准的主要方法

This Standard specifies a primary method for the calibration of microphones by the reciprocity technique. The specifications are intended to ensure that primary calibration with the reciprocity technique can attain the highest accuracy. The technical req

Measurement Microphones - Part 2: Primary Method for Pressue Calibration of Laboratory Standard Microphones by the Reciprocity Technique

ISO 11904-1:2002/Cor 1:2004 声学.测定耳朵附近声源处声发射强度.第1部分:利用人耳中麦克风技术(MIRE技术).技术勘误1

Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 1: Technique using a microphone in a real ear (MIRE technique); Technical Corrigendum 1

IEC 60118-13:2004 电声学.助听器.第13部分:电磁兼容性(EMC)

Covers all relevant EMC phenomena for hearing aids. EMC phenomena, such as RF emission and electrostatic discharge, are not currently known to be a significant problem in connection with hearing aids and are therefore not dealt with. Based on new knowled

Electroacoustics - Hearing aids - Part 13: Electromagnetic compatibility (EMC)

DIN EN 61672-2:2004 电声学.声级计.第2部分:图像评价试验

This standard provides details of the tests necessary to verify conformance to all mandatory specifications given in IEC 61672-1 for conventional sound level meters, integrating-averaging sound level meters, and integrating sound level meters. Pattern evaluation tests apply for each channel of a multi-channel sound level meter, as appropriate. Tests and test methods are applicable to class 1 and class 2 sound level meters. The aim is to ensure that all testing laboratories use consistent methods to perform pattern evaluation tests.#,,#

Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests (IEC 61672-2:2003); German version EN 61672-2:2003

KS I ISO 4869-3:2004 声学.听力保护器.第3部分:用声学试验器具测量耳罩式保护器的插入损耗

이 기술 보고는 품질 검사를 위한 귀 덮개형 보호구의 삽입 손실의 측정 방법을 규정한다

Acoustics-Hearing protectors-Part 3:Simplified method for the measurement of insertion loss ofear-muff type protectors for quality inspection purposes

BS DD IEC TS 62370:2004 电声学.声强测量仪器.电磁和静电兼容性要求和试验规程

This Technical Specification specifies requirements for instruments that measure sound intensity using pairs of pressure sensing microphones with respect to their immunity to power- and radio-frequency fields and to electrostatic discharge, and the permitted radio-frequency emissions, together with test procedures to verify conformance. Sound intensity measuring instruments are available in many different configurations and may be powered by batteries or from external power supply systems. The technical requirements in this Technical Specification apply to all configurations of instruments for the measurement of sound intensity. The electromagnetic and electrostatic compatibility requirements are equally applicable for sound intensity measuring instruments used in residential, commercial and light-industrial environments, or industrial sites. The requirements of this Technical Specification are additional to those contained in IEC 61043 and do not alter any of the specifications contained therein. The requirements do not apply retrospectively to sound intensity measuring instruments complying with IEC 61043 prior to the publication of this Technical Specification.

Electroacoustics - Instruments for the measurement of sound intensity - Electromagnetic and electrostatic compatability requirements and test procedures

BS EN 50332-2:2003 音响系统设备.与便携音频设备相应的耳机和头戴式耳机.最大声压级测量方法和限值考虑.单独提供或同时提供时头戴式耳机设置的匹配

This Part 2 of EN 50332 specifies matching values for the use of battery-operated audio equipment and headphones/earphones defined for the use with those and with standardised connectors allowing to combine components of different manufacturers or different design sold separately in order to avoid possible hearing impairment by excessive sound pressure resulting from them. Compared with "one-package sets" the sound pressure level at the ear cannot be fixed by only one condition but needs at least two characteristics, one each for player and the headphones/earphones, defined by the matching values for their connection.

Sound system equipment:Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - Part 2:Matching of sets with headphones if either or both are offered separately

BS EN 50332-2:2004 音响系统设备.与便携音频设备相应的耳机和头戴式耳机.最大声压级测量方法和限值考虑.单独提供或同时提供时头戴式耳机设置的匹配

Sound system equipment - Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - Matching of sets with headphones if either or both are offered separately

NAVY MIL-DTL-32015 A-2004 线性麦克风的一般规格

This specification covers direct currant (dc) powered, high-gain, linear noisecancelling microphones for boom and mask mounting applications.

MICROPHONES, LINEAR, GENERAL SPECIFICATION FOR

ASA S3.35-2004-2004 模拟真实耳朵工作环境助听器业务活动的评价方法ASA 59

Method of Measurement of Performance Characteristics of Hearing Aids Under Simulated Real-Ear Working Conditions ASA 59

ANSI S1.17 Part 1-2004 传声器风挡.第1部分:静止或细微气流的介入损失的测量和规范

This standard specifies a test to use to determine the insertion loss of windscreens for measuring microphones over a defined frequency range. The insertion loss is determined in conditions that reflect performance in still or slightly moving air.

Microphone Windscreens - Part 1: Measurements and Specification of Insertion Loss in Still or Slightly Moving Air

ANSI/IEEE C37.103:2003 差动和偏振继电器电路试验指南

Covers the tests required to ensure correct connection of differential relays and polarizing circuits of phase and ground relays.

Guide for Differential and Polarizing Relay Circuit Testing

DIN EN 61672-1:2003 电声学.声级计.第1部分:规范

This standard specifies the requirements to be fulfilled by sound level meters of classes 1, 2 and LS. Together with part 2 of this standard, this standard replaces the separate standards on simple sound level meters (DIN EN 60651) and integrating-averaging sound level meters (DIN EN 60804). DIN EN 61672-1 is dedicated to specifications only, no test methods are described. These are covered by parts 2 and 3 of this standard. Futher," this standard has changed with respect to its precursor in that DIN 61672-1 takes into account the measurement uncertainty of the testing laboratory as specified in DIN V ENV 13005 ""Guide to the expression of uncertainty in measurement"". Also", sound level meters without permanent display (such as devices with a memory for data) multi-channel sound level meters, and sound level meters requiring an external computer for operation are considered. In an annex, specifications for the AU-weighting (for the measurement of audible sound in the presence of ultrasound) are given.#,,#

Electroacoustics - Sound level meters - Part 1: Specifications (IEC 61672-1:2002); German version EN 61672-1:2003

SANS 60942:2003 电声学．音响校准器

Specifies the performance requirements for three classes of sound calibrator: laboratory standard (class LS) sound calibrators which are normally used only in the laboratory, and class 1 and class 2 calibrators that are considered as sound calibrators fo

Electroacoustics - Sound calibrators

BS EN 61672-2:2003 电声学.声级计.型式评定试验

This part of IEC 61672 provides details of the tests necessary to verify conformance to all mandatory specifications given in IEC 61672-1:2002 for conventional sound level meters, integrating-averaging sound level meters and integrating sound level meters. Pattern evaluation tests apply for each channel of a multi-channel sound level meter, as appropriate. Tests and test methods are applicable to class 1 and class 2 sound level meters. The aim is to ensure that all testing laboratories use consistent methods to perform pattern evaluation tests.

Electroacoustics - Sound level meters - Pattern evaluation tests

BS EN 60942:2003 电声学.音响校准器

This International Standard specifies the performance requirements for three classes of sound calibrator: laboratory standard (class LS), class 1 and class 2. Tolerance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use. A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and a class 2 sound calibrator primarily with a class 2 sound level meter, as specified in IEC 61672-1. The tolerance limits for class LS sound calibrators are based on the use of a laboratory standard microphone, as specified in IEC 61094-1, for demonstrations of conformance to the requirements of this standard. The tolerance limits for class 1 and class 2 sound calibrators are based on the use of a working standard microphone, as specified in IEC 61094-4, for demonstrations of conformance to the requirements of this standard. A multi-level and multi-frequency sound calibrator has the same class designation for all sound pressure level and frequency combinations for which the instruction manual states that the instrument conforms to the requirements of this standard. This standard does not include requirements for equivalent free-field or random-incidence sound pressure levels, such as may be used in the overall sensitivity adjustment of a sound level meter. A sound calibrator may provide other functions, for example, tonebursts. Requirements for these other functions are not included in this standard.

Electroacoustics - Sound calibrators

SJ 20864-2003 有源抗噪声送受话器组通用规范

General specification for active ant-noise transmitter and receiver

SJ 20527.7-2003 微波组件.WFZ1006型锁相介质振荡器详细规范

Microwave assembly Detail specification for model WFZ1006 phased locked dielectric resonator oscillator