1、 ANSI S1.40-2006 (Revision of ANSI S1.40-1984) AMERICAN NATIONAL STANDARD Specifications and Verification Procedures for Sound CalibratorsAccredited Standards Committee S1, Acoustics Standards Secretariat Acoustical Society of America 35 Pinelawn Road, Suite 114 E Melville, NY 11747-3177ANSI S1.40-2
2、006 Reaffirmed by ANSI on October 27, 2011 The American National Standards Institute, Inc. (ANSI) is the national coordinator of voluntary standards development and the clearinghouse in the U.S.A. for information on national and international standards. The Acoustical Society of America (ASA) is an
3、organization of scientists and engineers formed in 1929 to increase and diffuse the knowledge of acoustics and to promote its practical applications. ANSI S1.40-2006 (Revision of ANSI S1.40-1984) AMERICAN NATIONAL STANDARD Specifications and Verification Procedures for Sound Calibrators Secretariat
4、Acoustical Society of America Approved 20 September 2006: American National Standards Institute, Inc. Abstract This Standard specifies performance requirements for coupler-type sound calibrators. It replaces ANSI S1.40-1984 American National Standard Specifications for Acoustical Calibrators, and is
5、 technically equivalent (except for the absence of requirements for radio-frequency emissions) to International Standard IEC 60942:2003, ElectroacousticsSound calibrators. The standard specifies performance requirements for the sound pressure level, frequency, and total distortion generated by a sou
6、nd calibrator. It also provides requirements for the influence of environmental conditions, for electromagnetic compatibility, and for instrument marking and documentation. The standard gives details of the tests necessary to verify that a model of sound calibrator conforms to all the requirements,
7、as well as details of the method for periodic testing of a sound calibrator. The tests require the determination of the actual uncertainties of measurement which are to not exceed the maximum uncertainties allowed for laboratory measurements. AMERICAN NATIONAL STANDARDS ON ACOUSTICS The Acoustical S
8、ociety of America (ASA) provides the Secretariat for Accredited Standards Committees S1 on Acoustics, S2 on Mechanical Vibration and Shock, S3 on Bioacoustics, and S12 on Noise. These committees have wide representation from the technical community (manufacturers, consumers, trade associations, orga
9、nizations with a general interest, and government representatives). The standards are published by the Acoustical Society of America as American National Standards after approval by their respective Standards Committees and the American National Standards Institute. These standards are developed and
10、 published as a public service to provide standards useful to the public, industry, and consumers, and to Federal, State, and local governments. Each of the accredited Standards Committees operating in accordance with procedures approved by American National Standards Institute (ANSI) is responsible
11、 for developing, voting upon, and maintaining or revising its own Standards. The ASA Standards Secretariat administers Committee organization and activity and provides liaison between the Accredited Standards Committees and ANSI. After the Standards have been produced and adopted by the Accredited S
12、tandards Committees, and approved as American National Standards by ANSI, the ASA Standards Secretariat arranges for their publication and distribution. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in
13、 the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered and t
14、hat a concerted effort be made towards their resolution. The use of an American National Standard is completely voluntary. Their existence does not in any respect preclude anyone, whether he or she has approved the Standards or not, from manufacturing, marketing, purchasing, or using products, proce
15、sses, or procedures not conforming to the Standards. NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this Standard. Acoustical Socie
16、ty of America ASA Secretariat 35 Pinelawn Road, Suite 114E Melville, New York 11747-3177 Telephone: 1 (631) 390-0215 Fax: 1 (631) 390-0217 E-mail: asastdsaip.org 2006 by Acoustical Society of America. This Standard may not be reproduced in whole or in part in any form for sale, promotion, or any com
17、mercial purpose, or any purpose not falling within the provisions of the U.S. Copyright Act of 1976, without prior written permission of the publisher. For permission, address a request to the Standards Secretariat of the Acoustical Society of America. Acoustical Society of America 2006 All rights r
18、eserved iContents 1 Scope . 1 2 Normative references. 2 3 Terms and definitions. 2 4 Reference environmental conditions 4 5 Requirements . 4 5.1 General . 4 5.2 Sound pressure level 6 5.3 Frequency. 8 5.4 Influence of static pressure, air temperature, and humidity 9 5.5 Total distortion 10 5.6 Power
19、 supply 11 5.7 Specification and calibration of microphones . 11 5.8 Electromagnetic compatibility . 12 6 Instrument marking and documentation. 13 6.1 Marking . 13 6.2 Individual calibration chart for a class LS sound calibrator 13 6.3 Instruction Manual 13 Annex A (normative) Verification. 16 A.1 I
20、ntroduction. 16 A.2 Verification sample size 16 A.3 Principal values. 17 A.4 Marking of the sound calibrator and supplied documentation 17 A.5 Performance tests at and around reference environmental conditions 17 A.6 Environmental tests 23 A.7 Electromagnetic compatibility . 32 Annex B (normative) P
21、eriodic tests . 35 B.1 Introduction. 35 B.2 Submission for test . 35 B.3 Preliminary inspection. 35 B.4 Performance tests. 36 B.5 Calibration of the sound calibrator with other models of microphone 38 B.6 Documentation 39 B.7 Bibliography for Annex B 40 Acoustical Society of America 2006 All rights
22、reserved ii Tables Table 1 Tolerance limits for sound pressure level and short-term level fluctuation, at and around reference environmental conditions . 7 Table 2 Tolerance limits for the influence of supply voltage on sound pressure level, at and around reference environmental conditions . 7 Table
23、 3 Tolerance limits for frequency, at and around reference environmental conditions. 8 Table 4 Tolerance limits for sound pressure level, over the specified range of environmental conditions . 9 Table 5 Tolerance limits for frequency, over the specified range of environmental conditions. 10 Table 6
24、Maximum total distortion 11 Table A.1 Maximum permitted expanded uncertainty of measurement for sound pressure level and short-term level fluctuation, at and around reference environmental conditions . 20 Table A.2 Maximum permitted expanded uncertainty of measurement for frequency, at and around re
25、ference environmental conditions . 21 Table A.3 Maximum permitted expanded uncertainty of measurement for total distortion, over the appropriate range of environmental conditions 22 Table A.4 Maximum permitted expanded uncertainty of measurement for sound pressure level, over the specified range of
26、environmental conditions 24 Table A.5 Maximum permitted expanded uncertainty of measurement for frequency, over the specified range of environmental conditions 28 Acoustical Society of America 2006 All rights reserved iiiForeword This Foreword is for information only, and is not an integral part of
27、the American National Standard ANSI S1.402006 American National Standard Specifications and Verification Procedures for Sound Calibrators. This Standard comprises a part of a group of definitions, standards, and specifications for use in acoustics. It was developed and approved by Accredited Standar
28、ds Committee S1 Acoustics, under its approved operating procedures. Those procedures have been accredited by the American National Standards Institute (ANSI). The Scope of Accredited Standards Committee S1 is as follows: Standards, specifications, methods of measurement and test, and terminology in
29、the field of physical acoustics, including architectural acoustics, electroacoustics, sonics and ultrasonics, and underwater sound, but excluding those aspects which pertain to biological safety, tolerances, and comfort. This Standard replaces ANSI S1.40-1984 (R2001), American National Standard Spec
30、ifications for Acoustical Calibrators. This Standard is technically equivalent (except for the absence of requirements regarding radio-frequency emissions from calibrators) to International Standard IEC 60942:2003, Electroacoustics Sound calibrators. This Standard includes two normative annexes that
31、 are considered to be integral parts of this Standard. At the time this Standard was submitted to Accredited Standards Committee S1, Acoustics for approval, the membership was as follows: J.P. Seiler, Chair G.S.K. Wong, Vice-Chair S.B. Blaeser, Secretary Acoustical Society of America. J.P. Seiler .G
32、.S.K. Wong (Alt.) Air-Conditioning and Refrigeration Institute . S. Lind . D. Brown (Alt.) American Industrial Hygiene Association. D. Driscoll D. Sandfort (Alt.) Bruel FAX: 631-390-0217; E-mail: asastdsaip.org AMERICAN NATIONAL STANDARD ANSI S1.40-2006 Acoustical Society of America 2006 All rights
33、reserved 1American National Standard Specifications and Verification Procedures for Sound Calibrators 1 Scope Sound calibrators generate known sound pressure levels at one or more frequencies in a coupler into which a specified model of microphone is inserted in a specified configuration. NOTE An ex
34、ample of a specified configuration may be with or without a grid. This Standard specifies performance requirements and verification procedures for three classes of coupler-type sound calibrators: Class LS: Laboratory Standard calibrator with the smallest tolerance limits. Class 1: Sound calibrators
35、that are generally intended for field use with class 1 sound level meters and similar instruments. Class 2: Sound calibrators that are generally intended for field use with class 2 sound level meters, dosimeters, and similar instruments. For class LS calibrators, the Standard requires the use of a l
36、aboratory standard microphone as specified in ANSI S1.15-1997/Part 1. For class 1 and class 2 calibrators, the Standard requires the use of a working standard microphone as specified in IEC 61094-4:1995. Tolerance limits in this Standard include maximum permitted expanded uncertainties of measuremen
37、t as well as the tolerance limits allowed for design and manufacturing. This Standard applies to sound calibrators that are used to check or adjust the sensitivity of sound measuring instruments and systems including conventional, integrating-averaging and integrating sound level meters, and persona
38、l noise dosimeters. This Standard does not include requirements for the Instruction Manual to provide data for use in adjusting a sound level indicated by a sound level meter, or equivalent instrument, in response to application of a sound calibrator to the equivalent free-field or random-incidence
39、sound level. Sound calibrators may provide two or more sound pressure levels and operate at two or more frequencies. These multiple-level / multiple-frequency calibrators have a single class designation for all combinations of levels and frequencies for which the Instruction Manual states conformanc
40、e to the requirements of this Standard. Additional useful functions such as tonebursts may be provided. Requirements for these additional functions are not included in this Standard. ANSI S1.40-2006 Acoustical Society of America 2006 All rights reserved 2 2 Normative references The following referen
41、ced documents are indispensable for the application of this Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ANSI S1.1-1994 (R 2004), American National Standard Acoustical Termino
42、logy. ANSI S1.6-1984 (R 2006), American National Standard Preferred Frequencies, Frequency Levels, and Band Numbers for Acoustical Measurements. ANSI S1.15-1997/Part 1 (R 2006), American National Standard Measurement Microphones Part 1: Specifications for Laboratory Standard Microphones ANSI S1.15-2
43、005/Part 2, American National Standard Measurement Microphones Part 2: Primary Method for Pressure Calibration of Laboratory Standard Microphones by the Reciprocity Technique. IEC 61094-4:1995, Measurement microphones - Part 4: Specifications for working standard microphones IEC 61094-5:2001, Measur
44、ement microphones - Part 5: Methods for pressure calibration of working standard microphones by comparison IEC 61000-4-2:1995, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 2: Electrostatic discharge immunity test. Basic EMC Publication IEC 61000-4-3:1998, El
45、ectromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 3: Radiated, radio-frequency, electromagnetic field immunity test, Edition 1.1 IEC 61000-6-1:1997, Electromagnetic compatibility (EMC) Part 6: Generic standards Section 1: Immunity for residential, commercial and li
46、ght-industrial environments IEC 61000-6-2:1999, Electromagnetic compatibility (EMC) Part 6: Generic standards Section 2: Immunity for industrial environments CISPR 22:1997, Information technology equipment Radio disturbance characteristics Limits and methods of measurement Guide to the expression of
47、 uncertainty in measurement: 1995, ISBN: 9267101889 3 Terms and definitions For the purposes of this Standard, the terms and definitions given in ANSI S1.1-1994, and the following apply. 3.1 sound calibrator device that generates a sinusoidal sound pressure of specified sound pressure level and freq
48、uency when coupled to specified models of microphone in specified configurations ANSI S1.40-2006 Acoustical Society of America 2006 All rights reserved 33.2 specified sound pressure level sound pressure level(s) generated under reference environmental conditions for use with a particular microphone
49、model and configuration, valid for either an individual sound calibrator (in the case of a class LS sound calibrator) or all sound calibrators of the same model (in the case of a class 1 or class 2 calibrator) 3.3 nominal sound pressure level close approximation to the specified sound pressure level(s), valid for all sound calibrators of the same model, rounded to the nearest decibel (intended for marking) 3.4 specified frequency frequency(ies) of the sound generated by the sound calibrator under reference
