N65 声学仪器与测震仪 标准查询与下载

NF S31-084:2002 声学.工作环境中噪声接触级的测量方法

Acoustics - Method for measuring noise exposure levels in work environments.

NF S31-074:2002 声学.建筑物和建筑元件隔音测量.通过屋内地板覆盖物减少屋内撞击噪音的试验室测量

Acoustics - Measurement of sound insulation in buildings and of building elements - Laboratory measurement of in room impact noise by floor covering put in this room.

DIN EN 60645-1:2002 电声学.听觉病矫治学设备.第1部分:纯音测听计 (IEC 60645-1:2001); 德文版本 EN 60645-1:2001

This part of International Standard IEC 60645 specifies general requirements for audiometers and particular requirements for pure-tone audiometers designed for use in determining hearing threshold levels, in comparison with standard reference threshold levels by means of psychoacoustic test methods.#,,#

Electroacoustics - Audiological equipment - Part 1: Pure-tone audiometers (IEC 60645-1:2001); German version EN 60645-1:2001

NF S31-001-1:2002 电声学.测听仪.第1部分:纯音测听仪

Electroacoustics - Audiological equipment - Part 1 : pure-tone audiometers.

ASTM F2174-02(2008) 检验声音传播传感器响应的标准实施规程

Degradation in sensor performance can occur due to dropping, mechanical shock while mounted on the test structure, temperature cycles, and so forth. It is necessary and desirable to have a simple measurement procedure that will check the consistency of sensor response, while holding all other variables constant. While test blocks of many different kinds have been used for this purpose for many years, an acrylic polymer rod offers the best all-around combination of suitable acoustic properties, practical convenience, ease of procurement, and low cost. Because the acoustic properties of the acrylic rod are known to depend on temperature, this practice requires that the rod, sensors, and couplant be stabilized at the same working temperature, prior to application of the practice. Attention should be paid to storage conditions for the acrylic polymer rod. For example, it should not be left in a freezing or hot environment overnight, unless it is given time for temperature stabilization before use. Properly applied and with proper record keeping, this practice can be used in many ways, such as: To determine when a sensor is no longer suitable for use. To check sensors that have been exposed to high-risk conditions such as dropping, overheating, and so forth. To get an early warning of sensor degradation over time. To obtain matched sets of sensors and preamplifiers. To verify sensors quickly but accurately in the field, and to assist troubleshooting when a channel does not pass a performance check.1.1 This practice is used for routinely checking the sensitivity of acoustic emission (AE) sensors. It is intended to provide a reliable, precisely specified way of comparing a set of sensors or telling whether an individual sensor''s sensitivity has degraded during its service life, or both. 1.2 The procedure in this practice is not a “calibration” and does not give frequency-response information. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This practice does not purport to recommend one sensor manufacturer over another nor does it imply that one type of sensor will react differently from another when using this procedure. 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 Verifying Acoustic Emission Sensor Response

ASTM F2174-02 检验声音传播传感器响应的标准实施规程

Degradation in sensor performance can occur due to dropping, mechanical shock while mounted on the test structure, temperature cycles, and so forth. It is necessary and desirable to have a simple measurement procedure that will check the consistency of sensor response, while holding all other variables constant. While test blocks of many different kinds have been used for this purpose for many years, an acrylic polymer rod offers the best all-around combination of suitable acoustic properties, practical convenience, ease of procurement, and low cost. Because the acoustic properties of the acrylic rod are known to depend on temperature, this practice requires that the rod, sensors, and couplant be stabilized at the same working temperature, prior to application of the practice. Attention should be paid to storage conditions for the acrylic polymer rod. For example, it should not be left in a freezing or hot environment overnight, unless it is given time for temperature stabilization before use. Properly applied and with proper record keeping, this practice can be used in many ways, such as: 3.5.1 To determine when a sensor is no longer suitable for use. 3.5.2 To check sensors that have been exposed to high-risk conditions such as dropping, overheating, and so forth. 3.5.3 To get an early warning of sensor degradation over time. 3.5.4 To obtain matched sets of sensors and preamplifiers. 3.5.5 To verify sensors quickly but accurately in the field, and to assist troubleshooting when a channel does not pass a performance check.1.1 This practice is used for routinely checking the sensitivity of acoustic emission (AE) sensors. It is intended to provide a reliable, precisely specified way of comparing a set of sensors or telling whether an individual sensor''s sensitivity has degraded during its service life, or both.1.2 The procedure in this practice is not a "calibration" and does not give frequency-response information.1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.4 This practice does not purport to recommend one sensor manufacturer over another nor does it imply that one type of sensor will react differently from another when using this procedure.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 Verifying Acoustic Emission Sensor Response

JJG 188-2002 声级计检定规程

Verification Regulation of Sound Level Meters

ASTM E1211-02 使用表面安装的声辐射探测器作泄漏探测和定位的标准实施规程

1.1 This practice describes a passive method for detecting and locating the steady state source of gas and liquid leaking out of a pressurized system. The method employs surface-mounted acoustic emission sensors (for noncontact sensors see Test Method E 1002), or sensors attached to the system via acoustic waveguides (for additional information, see Terminology E 1316), and may be used for continuous inservice monitoring and hydrotest monitoring of piping and pressure vessel systems. High sensitivities may be achieved, although the values obtainable depend on sensor spacing, background noise level, system pressure, and type of leak. This practice is not intended to provide a quantitative measure of leak rates. 1.2 The values stated in inch-pound units are to be regarded as the standard. SI units are provided for information only.1.3 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 Leak Detection and Location Using Surface-Mounted Acoustic Emission Sensors

KS C IEC 61183:2001 电声学.声级计的无规定射声场及扩散声场的校正

1.1 이 규격은 소음계의 랜덤 입사 감도 레벨을 구하기 위한 자유 음장 측정에 의한 교정

Electroacoustics－Random incidence and diffuse-field calibration of sound level meters

NF S31-692:2001 声学.声强级测定用基准声源的性能和校准要求

Acoustics - Requirements for the performance and calibration of reference sound sources for the determination of sound power levels.

IEC 61094-5:2001 测量传声器 第5部分：用比对对工作标准传声器的压力校准方法

This part of IEC 61094 is applicable to working standard microphones with removable protection grids meeting the requirements of IEC 61094-4 and to laboratory standard micro-phones meeting the requirements of IEC 61094-1. This part of IEC 61094 also describes methods of determining the pressure sensitivity by comparison with either a laboratory standard microphone that has been calibrated according to IEC 61094-2, or another working standard microphone that has been calibrated according to this part of IEC 61094. Alternative comparison methods based on the principles described in IEC 61094-2 are possible but beyond the scope of this part of IEC 61094.

Measurement microphones - Part 5: Methods for pressure calibration of working standard microphones by comparison

IEC 60645-1:2001 电声学 听力设备 第1部分：纯音听力计

This part of IEC 60645 specifies general requirements for audiometers and particular requirements for pure-tone audiometers designed for use in determining hearing threshold levels, in comparison with standard reference threshold levels by means of psychoacoustic test methods. The object of this International Standard is to ensure: a) that tests of hearing, particularly threshold, in the frequency range 125 Hz to 8000 Hz on a given human ear performed with different audiometers which comply with this International Standard using methods described in ISO 8253-1 and ISO 6189 shall give substantially the same results; b) that the results obtained represent a valid comparison between the hearing of the ear tested and the reference threshold of hearing; c) that audiometers are classified according to the range of test signals they generate, according to the mode of operation or according to the complexity of the range of auditory functions they test.

Electroacoustics - Audiological equipment - Part 1: Pure-tone audiometers

IEC 61828:2001 超声 聚焦传感器 定义及传送场的测量方法

This International Standard - provides definitions for the transmitted field characteristics of focusing transducers for applications in medical ultrasound; - relates these definitions to theoretical descriptions, design, and measurement of the transmitted fields of focusing transducers; - gives measurement methods for obtaining defined characteristics of focusing transducers; - specifies beam axis alignment methods appropriate for focusing transducers. This International Standard relates to focusing ultrasonic transducers operating in the frequency range appropriate to medical ultrasound (0,5 MHz to 40 MHz) for both therapeutic and diagnostic applications. It shows how the characteristics of the transmitted field of transducers may be described from the point of view of design, as well as measured by someone with no prior knowledge of the construction details of a particular device. The radiated ultrasound field for a specified excitation is measured by a hydrophone in either a standard test medium (for example, water) or in a given medium. The standard applies only to media where the field behaviour is essentially like that in a fluid (i.e. where the influence of shear waves and elastic anisotropy is small), including soft tissues and tissue-mimicking gels. Any aspects of the field that affect their theoretical description or are important in design are also included. These definitions would have use in scientific communications, system design and description of the performance and safety of systems using these devices. This standard incorporates definitions from other related standards where possible, and supplies new, more specific terminology, both for defining focusing characteristics and for providing a basis for measurement of these characteristics. note: 1 Specifically, IEC 61102 and IEC 61157 (see clause 2).

Ultrasonics - Focusing Transducers - Definitions and Measurement Methods for the Transmitted Fields (Edition 1.0)

ANSI S1.42-2001 声学测量用加权网络的设计响应

This Standard provides the design criteria for both the frequency-domain response (amplitude and phase) and time-domain of the A- and C-weighting networks used in acoustically related measurements. The poles and zeros for each weighting network are given

Design Response of Weighting Networks for Acoustical Measurements

NF S31-004-4:2000 建筑物声学.根据元件性能评估建筑物的声学性能.第4部分:室内到室外的声音传播

Building acoustics - Estimation of acoustic performance of buildings from the performance of elements - Part 4 : transmission of indoor sound to the outside.

NF S31-089:2000 声学.无声波场中安装的隔音设备的声学特性测定用试验规程

Acoustics - Test code for the determination of acoustical characteristics of sound barriers installed in a free field.

IEC 60651/AMD2:2000 声级计.修改件2

Sound level meters; Amendment 2

IEC 60942/AMD1:2000 电声学.音响校准器.修改件1

Electroacoustics - Sound calibrators; Amendment 1

IEC 60804:2000 平均噪声剂量计

Integrating-averaging sound level meters

NF S31-004-2:2000 建筑物声学.根据元件性能评估建筑物的声学性能.第2部分:房间之间冲击声音的隔绝

Building acoustics - Estimation of acoustic performance of buildings from the performance of elements - Part 2 : impact sound insulation between rooms.