N65 声学仪器与测震仪 标准查询与下载

ANSI S3.6-2004 听力计规范

The audiometers covered in this specification are devices designed for use in determining the hearing threshold level of an individual in comparison with a chosen standard reference threshold level. This standard provides specifications and tolerances fo

Specification for Audiometers

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程序

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 permi

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

ISO 389-8:2004 声学.校正听力设备的基准零级.第8部分:耳罩式耳机纯音基准等效阈声压级

本部分规定了125 Hz～8 000 H2频率范围的纯音基准等效阈声压级(RETSPLs)，适用于配备了 一种特殊型号的耳罩式耳机(SENNHEISER HDA 200)的气导测听设备的校准。 注：在附录A和参考文献中给出了得出HDA 200型耳罩式耳机基准等效阈声压级的说明和测试条件。 附录B给出了这种耳罩式耳机的声衰减。附录C给出了A—E类和B—E类语言听力计(见 GB／T 7341．2)耳机的自由场等效输出修正值。

Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones

ASTM E2374-04 声学发射系统性能验证的标准指南

1.1 System performance verification methods stimulate the examination article on which the sensor is mounted. The resulting stress wave travels in the examination article and is detected by the sensor(s) in a manner similar to acoustic emission.1.2 This guide describes methods which can be used to verify the response of an Acoustic Emission system including sensors, couplant, sensor mounting devices, cables and system electronic components.1.3 Acoustic emission system performance characteristics, which may be evaluated using this document, include some waveform parameters, and source location accuracy.1.4 Performance verification is usually conducted prior to beginning the examination.1.5 Performance verification can be conducted during the examination if there is any suspicion that the system performance may have changed.1.6 Performance verification may be conducted after the examination has been completed.

Standard Guide for Acoustic Emission System Performance Verification

ASTM E750-04 声辐射测量仪表表征的标准规程

1.1 This practice is recommended for use in testing and measuring operating characteristics of acoustic emission electronic components or units. (See Appendix X1 for a description of components and units.) It is not intended that this practice be used for routine checks of acoustic emission instrumentation, but rather for periodic evaluation or in the event of a malfunction. The sensor is not addressed in this document other than suggesting methods for standardizing system gains (equalizing them channel to channel) when sensors are present.1.2 Where the manufacturer provides testing and measuring details in an operating and maintenance manual, the manufacturer''s methods should be used in conjunction with the methods described in this practice.1.3 Difficult or questionable instrumentation measurements should be referred to electronics engineering personnel.1.4 The methods set forth in this practice are not intended to be either exclusive or exhaustive.1.5 The methods (techniques) used for testing and measuring the components or units of acoustic emission instrumentation, and the results of such testing and measuring should be documented. Documentation should consist of photographs, charts or graphs, calculations, and tabulations where applicable.1.6 AE systems that use computers to control the collection, storage, display, and data analysis are in common use. Features of the computer-based systems might include waveform collection as well as a wide selection of measurement parameters relating to the AE signal. The manufacturer provides a specification for each system that specifies the operating range and conditions for the system. All calibration and acceptance testing of computer-based AE systems must use the manufacturer''s specification as a guide. This practice does not cover testing of the computer or computer peripherals.1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Characterizing Acoustic Emission Instrumentation

SANS 61672-2:2003 电声学．声级计．第2部分：模型评定试验

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 meter

Electroacoustics - Sound level meters Part 2: Pattern evaluation tests

SANS 61672-1:2003 电声学．声级计．第1部分：尺寸

This standard gives electroacoustical performance specifications for three kinds of sound measuring instruments:- a conventional sound level meter that measures exponential time-weighted sound level; - an integrating-averaging sound level meter that meas

Electroacoustics - Sound level meters Part 1: Specifications

NF S31-009-2:2003 电声学.声级计.第2部分:模式评价试验

Electroacoustics - Sound level meters - Part 2 : pattern evaluation tests.

KS I ISO 389-4:2003 声学.校正听力设备的基准零级.第4部分:窄带掩蔽噪声基准级

이 규격은 순음 측정에서 이어폰으로부터의 공기를 매개로 하는 전도시 나타나는 협대역 마

Acoustics-Reference zero for the calibration of audiometric equipment-Part 4:Reference levels for narrow-band masking noise

KS I ISO 389-1:2003 声学.校正听力设备的基准零级.第1部分:纯音和压耳式耳机用的基准等效阈声压级

서 문 이 규격은 1998년에 발행된 ISO 389-1 Acoustics-Refe

Acoustics-Reference zero for the calibration of audiometric equipment-Part 1:Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

NF S31-009-1:2003 电声学.声级计.第1部分:规范

Electroacoustics - Sound level meters - Part 1 : specifications.

KS C IEC 61094-4:2003 测量传声器.第4部分:工作标准传声器的规范

규격은 작업용 표준 마이크로폰에 적용된다.음압의 결정을 위한 측정 시스템에서 사용되는

Measurement microphones-Part 4:Specifications for working standard microphones

KS C IEC 61094-1:2003 测量传声器.第1部分:实验室标准传声器规范

이 규격은 기계적인 크기와 음압의 단위를 현실화하기 위해, 그리고 가능한 가장 높은 정

Measurement microphones-Part 1:Specifications for laboratory standard microphones

KS C IEC 61094-3:2003 测量传声器.第3部分:实验室标准传声器的自由场校准基本方法.可逆法

이 규격은 IEC 61094-1의 요구 조건을 만족하는 시험실용 표준 마이크로폰에 적용

Measurement microphone-Part 3:Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique

KS C IEC 61094-2:2003 测量传声器.第2部分:实验室标准传声器的压力校准基本方法.可逆法

이 규격은 IEC 61094-1의 요구 사항을 만족하는 시험실용 표준 마이크로폰 및 동

Measurement microphones-Part 2:Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique

IEC 60942:2003 电声学.音响校准器

Specifies the performance requirements for three classes of sound calibrator. Sound calibrators are designed to produce a known effective sound pressure level or levels at a specified frequency or frequencies when coupled to specified models of microphon

Electroacoustics - Sound calibrators

JJG 607-2003 声频信号发生器检定规程

Verification Regulation of Audio-Frequency Signal Generators

ASTM D6318-03 用棒检验方法校准回声测深仪的标准实施规范

The accuracy of depth measurements made by a fathometer or echo sounder requires a number of corrections because of the variability of sound or acoustic velocity in water with changes in temperature, salinity, and depth of water. In addition instability of the equipment can also result in significant errors. For additional information see Practice D 5073. Calibration of echo sounding instruments is absolutely critical in assuring the adequacy of depth measurements. When an echo sounder has been accurately calibrated, any observed (recorded) depth can be related to the true depth of water. Since the intended purpose of echo sounding is to measure the “true” depth, an independent “true” reference must be used. A bar-check is the most wide-spread, easiest to construct, and most economical mechanical method to determine corrections for instrument and velocity errors. This procedure explains the calibration of a fathometer or electronic depth sounder using a bar-check. Bar-checking techniques and equipment are general in nature and may need to be modified for use in specific field conditions.1.1 This practice provides the user with procedures used in manually calibrating the fathometer or electronic depth sounder. This narrative describes calibration terminology, describes acceptable environmental conditions for calibration, and describes the calibration procedures.1.2 The references cited contain useful information in the construction and the correct operation of the calibration equipment.1.3 Any references cited in this narrative to specific products or brand names are made for information only, and is intended to be descriptive, but not restrictive, of products that will perform satisfactorily.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Calibrating a Fathometer Using a Bar Check Method

ASTM D6318-03(2008) 用棒检验方法校准回声测深仪的标准实施规范

The accuracy of depth measurements made by a fathometer or echo sounder requires a number of corrections because of the variability of sound or acoustic velocity in water with changes in temperature, salinity, and depth of water. In addition instability of the equipment can also result in significant errors. For additional information see Practice D 5073. Calibration of echo sounding instruments is absolutely critical in assuring the adequacy of depth measurements. When an echo sounder has been accurately calibrated, any observed (recorded) depth can be related to the true depth of water. Since the intended purpose of echo sounding is to measure the “true” depth, an independent “true” reference must be used. A bar-check is the most wide-spread, easiest to construct, and most economical mechanical method to determine corrections for instrument and velocity errors. This procedure explains the calibration of a fathometer or electronic depth sounder using a bar-check. Bar-checking techniques and equipment are general in nature and may need to be modified for use in specific field conditions.1.1 This practice provides the user with procedures used in manually calibrating the fathometer or electronic depth sounder. This narrative describes calibration terminology, describes acceptable environmental conditions for calibration, and describes the calibration procedures. 1.2 The references cited contain useful information in the construction and the correct operation of the calibration equipment. 1.3 Any references cited in this narrative to specific products or brand names are made for information only, and is intended to be descriptive, but not restrictive, of products that will perform satisfactorily. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Calibrating a Fathometer Using a Bar Check Method

JJG 389-2003 仿真耳检定规程

Verification Regulation of Artificial Ears