17.140 声学和声学测量 标准查询与下载



共找到 197 条与 声学和声学测量 相关的标准,共 14

In the framework of OIML B 18 Framework for the OIML Certification System (OIML-CS) applicable to load cells in conformity with OIML R 60-1 and R 60-2, use of this Report Format is mandatory, in French and/or in English with translation into the national languages of the countries issuing such certificates, if appropriate. Implementation of this Report Format is informative with regard to the implementation of OIML R 60-1 and R 60-2 in national regulations.

Metrological regulation for load cells Part 3: Test report format

ICS
17.140
CCS
发布
2021-07-01
实施

  Scope is not provided for this standard

Metrological regulation for load cells Part 2: Metrological controls and performance tests

ICS
17.140
CCS
发布
2021-07-01
实施

This Recommendation prescribes the principal metrological static r 2.1 equirements and static evaluation procedures for load cells used in the determination of conformity to this Recommendation. It is intended to provide authorities with uniform means for determining the metrological characteristics of load cells used in measuring instruments that are subjected to metrological controls. It is acknowledged that test procedures found in OIML R 60-2 are useful in the evaluation of load cells that are currently in service (i.e. primarily of the strain gauge design) however, there may be variations in designs for load cells that will require additional or modified test procedures to appropriately evaluate them. These additional test procedures may be annexed when necessary. Except where otherwise specified, these requirements apply regardless of the technology or operating principle employed. The requirements and evaluation procedures in this Recommendation have been drafted to be non-specific with regard to load cell design and their operating principles. 2.2 This Recommendation utilizes the principle that several measurement errors shall be considered together when applying load cell performance characteristics to the permitted error envelope. Thus, it is not considered appropriate to specify individual errors for given characteristics (e.g. non-linearity, hysteresis, effects of influence factors), but rather to consider the total error envelope allowed for a load cell as the limiting factor. The use of an error envelope allows the balancing of the individual contributions to the total error of measurement while still achieving the intended final result. Note: The error envelope may be defined as the boundary of the combined individual errors (see Table 4) as a function of the force introduced by the applied load (expressed in mass units) over the measuring range. The combined error determined may be positive or negative and include the effects of non-linearity, hysteresis and temperature. 2.3 “Weighing modules” as noted in OIML R 76 [1], T.2.2.7 (see R 60, Annex A, A.2.1), are not covered by this Recommendation. Weighing instruments that include load cells and which give an indication of mass are the subjects of separate Recommendations. While digital load cells may be covered under this Recommendation, a load cell that produces an output consisting of more than digital “raw counts” is not covered. In the illustration from OIML R 76 below, the scope of R 60 would not extend beyond module #3.

Metrological regulation for load cells Part 1: Metrological and technical requirements

ICS
17.140
CCS
发布
2021-07-01
实施

GUIDE FOR THE CLASSIFICATION NOTATION UNDERWATER NOISE AND EXTERNAL AIRBORNE NOISE

ICS
17.140
CCS
Z32
发布
2021-05-01
实施

Technical regulations for shallow profile sonar detection of reservoir deposits in Liaoning Province

ICS
17.140
CCS
P 59
发布
2021-04-30
实施
2021-05-30

Determination of the detection limit and decision threshold for ionizing radiation measurements-Part 4:Fundamentals and application to measurements by use of linear-scale analogue ratemeters, without the influence of sample treatment

ICS
17.140
CCS
发布
2014-12-31
实施

  Scope is not provided for this standard

Acoustics -- Measurement of room acoustic parameters -- Part 3: Open plan offices

ICS
17.140
CCS
发布
2013-12-31
实施

本标准规定了亚音速喷气飞机噪声合格审定飞行试验等效程序。 本标准适用于亚音速喷气飞机噪声合格审定飞行试验。

Equivalent flight test procedures for the noise certincation of subsonic jet powered aeroplane

ICS
17.140
CCS
Z32
发布
2008-10-20
实施
2009-02-01

本标准规定了温度和湿度函数的大气噪声吸收标准值的计算方法。 本标准适用于飞机噪声测量值的评估。

Standard values of atmospheric noise absorption as a function of temperature and humidity

ICS
17.140
CCS
Z32
发布
2008-10-20
实施
2009-02-01

This Recommendation deals with sound level meters, i.e. instruments for the measurement of frequency and time weighted sound pressure levels. It contains an appropriate test scheme for pattern evaluation and verification and a test report format for pattern evaluation.

SOUND LEVEL METERS

ICS
17.140
CCS
发布
2007-06-05
实施

This Recommendation deals with sound calibrators, i.e. devices designed to produce a known effective sound pressure level or levels at a specified frequency or frequencies when coupled to specified types of microphone in specified configurations (e.g. with or without protective grid). Such devices are used for the acoustical calibration of microphones and sound measuring instruments. The Recommendation contains an appropriate test scheme for pattern evaluation and verification.

SOUND CALIBRATORS

ICS
17.140
CCS
发布
2007-06-05
实施

Methods of Estimating Effective A-Weighted Sound Pressure Levels When Hearing Protectors are Worn Includes CD Rom

Methods of Estimating Effective A-Weighted Sound Pressure Levels When Hearing Protectors are Worn

ICS
17.140
CCS
L31
发布
2007-01-01
实施

本标准规定了水泥混凝土超声检测仪器结构及等级划分、技术要求、试验方法、检验规则、标志、包装、运输和贮存。 本标准适用于检测水泥混凝土强度和内部缺陷的超声检测仪。

Ultrasonic test instrument of concrete

ICS
17.140
CCS
R19
发布
2006-06-23
实施
2006-10-01

Specifications and Verification Procedures for Sound Calibrators

Specifications and Verification Procedures for Sound Calibrators

ICS
17.140
CCS
A59
发布
2006-01-01
实施

Acoustics Requirements for the Performance and Calibration of Reference Sound Sources Used for the Determination of Sound Power Levels ISO 6926:1999

Acoustics Requirements for the Performance and Calibration of Reference Sound Sources Used for the Determination of Sound Power Levels ISO 6926:1999

ICS
17.140
CCS
Z32
发布
2006-01-01
实施

For Rating Noise with Respect to Speech Interference

For Rating Noise with Respect to Speech Interference

ICS
17.140
CCS
Z32
发布
2006-01-01
实施

本规程适用于LS1P实验室标准传声器(以下简称传声器)的首次检定、后续检定和使用中检验。

Laboratory Standard Microphones (Free - field Reciprocity Method)

ICS
17.140
CCS
N65
发布
2005-10-09
实施
2006-04-09

本规程适用于实验室标准传声器的首次检定、后续检定和使用中检验。

Laboratory Standard Microphones (Coupler Reciprocity Method)

ICS
17.140
CCS
N65
发布
2005-10-09
实施
2006-04-09

本规程适用于LS级(实验室标准)、1级和2级声校准器的首次检定、后续检定和使用中的检验。

Sound Calibrators

ICS
17.140
CCS
A59
发布
2005-04-28
实施
2005-10-28

Measurement Microphones Part 2: Primary Method for Pressure Calibration of Laboratory Standard Microphones by the Reciprocity Technique Replaces ANSI S1.10-1966

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

ICS
17.140
CCS
A59
发布
2005-01-01
实施



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