1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-232771 SANS 16063-31:2009Edition 1ISO 16063-31:2009Edition 1SOUTH AFRICAN NATIONAL STANDARD Methods for the calibration of vibration and s
4、hock transducers Part 31: Testing of transverse vibration sensitivity This national standard is the identical implementation of ISO 16063-31:2009 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloo
5、f Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 16063-31:2009 Edition 1 ISO 16063-31:2009 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 76, Acoustics, electr
6、o-acoustics and vibration, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in November 2009. Reference numberISO 16063-31:2009(E)ISO 2009INTERNATIONAL STANDARD ISO16063-31First edition2009-08-15Method
7、s for the calibration of vibration and shock transducers Part 31: Testing of transverse vibration sensitivityMthodes pour ltalonnage des transducteurs de vibrations et de chocs Partie 31: Essai de sensibilit aux vibrations transversales SANS 16063-31:2009This s tandard may only be used and printed b
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13、i ISO 2009 All rights reservedSANS 16063-31:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 16063-31:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Uncertainty considerations 2 4 D
14、etermination of transverse sensitivity using a single-axis vibration generator.2 4.1 Apparatus.2 4.2 Method2 4.2.1 Test procedure.2 4.2.2 Expression of results3 5 Determination of the transverse sensitivity using a vibration generator with turntable .4 5.1 Apparatus.4 5.2 Method6 5.3 Expression of r
15、esults6 6 Determination of transverse sensitivity using a test system with X- and Y-vibration generators 6 6.1 Apparatus.6 6.2 Method and expression of results .9 7 Determination of the transverse sensitivity using a tri-axial vibration generator11 7.1 Apparatus.11 7.2 Method and expression of resul
16、ts .14 8 Equipment for measuring of the input and output signals of the transducer to be tested .15 9 Preferred amplitudes and frequencies15 Annex A (normative) Definition of transverse sensitivity.16 Bibliography18 SANS 16063-31:2009This s tandard may only be used and printed by approved subscripti
17、on and freemailing clients of the SABS .ISO 16063-31:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried
18、out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO
19、collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare Internationa
20、l Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the eleme
21、nts of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16063-31 was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and condition monitoring, Subcommittee SC 3, Use and calibration of vibr
22、ation and shock measuring instruments. This first edition cancels and replaces ISO 5347-11:1993. ISO 16063 consists of the following parts, under the general title Methods for the calibration of vibration and shock transducers: Part 1: Basic concepts Part 11: Primary vibration calibration by laser i
23、nterferometry Part 12: Primary vibration calibration by the reciprocity method Part 13: Primary shock calibration using laser interferometry Part 15: Primary angular vibration calibration by laser interferometry Part 21: Vibration calibration by comparison to a reference transducer Part 22: Shock ca
24、libration by comparison to a reference transducer Part 31: Testing of transverse vibration sensitivity Part 41: Calibration of laser vibrometers The following parts are planned: Part 23: Angular vibration calibration by comparison to reference transducers Part 32: Resonance testing1) Part 42: Calibr
25、ation of seismometers 1) Revision of ISO 5347-14:1993 and ISO 5347-22:1997. SANS 16063-31:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 16063-31:2009(E) ISO 2009 All rights reserved 1Methods for the calibratio
26、n of vibration and shock transducers Part 31: Testing of transverse vibration sensitivity 1 Scope This part of ISO 16063 specifies details of the instrumentation and methods to be used for transverse vibration sensitivity testing. It applies to rectilinear velocity and acceleration transducers. The
27、methods and procedures specified in this part of ISO 16063 allow the determination of the sensitivity of a transducer to vibration in the plane perpendicular to its geometric axis of sensitivity (see Annex A). Because the magnitude of this transverse sensitivity can vary with the direction of the ap
28、plied vibration, the various methods determine the maximum value. Using that value, the ratio of the transverse sensitivity to the sensitivity on the geometric axis of the transducer can be calculated. In addition, the angle at which the maximum transverse sensitivity occurs can be determined. The m
29、ethods and techniques specified can be applied without re-mounting the transducer away from its mounting surface during the test, thus avoiding significant uncertainties often encountered in methods which require repeated mounting. The different methods specified use a single-axis vibration exciter,
30、 a two-axis vibration exciter or a tri-axial vibration exciter. Tri-axial vibration excitation allows the transverse sensitivity and the sensitivity on the geometric axis to be determined simultaneously, thus simulating application conditions where the transducer is exposed to multi-axial vibration.
31、 NOTE In accelerometer designs using a bending beam, the transverse sensitivity measured without any vibration acting on the geometric axis of sensitivity of the accelerometer may considerably differ from the transverse sensitivity measured in the presence of a vibration acting on the geometric axis
32、 of sensitivity (i.e. when the bending beam is deflected by a vibration to be measured). This part of ISO 16063 is applicable to a frequency range from 1 Hz to 5 kHz and for a dynamic range from 1 m/s2to 1 000 m/s2(frequency dependent) and from 1 mm/s to 1 m/s (frequency dependent). Although among a
33、ll the systems specified it is possible to achieve these ranges, generally each has limitations permitting its use in much smaller ranges. The methods specified are by comparison both to a reference transducer and to a laser interferometer. The methods specified allow an expanded uncertainty of the
34、transverse sensitivity (coverage factor k = 2) of 0,1 % or less to be achieved, if the expanded uncertainty is expressed as a percentage of the sensitivity of the test transducer in its sensitive axis. 2 Normative references The following referenced documents are indispensable for the application of
35、 this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 266, Acoustics Preferred frequencies ISO 16063-1:1998, Methods for the calibration of vibration and shock transducers: P
36、art 1: Basic concepts SANS 16063-31:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 16063-31:2009(E) 2 ISO 2009 All rights reserved3 Uncertainty considerations An expanded uncertainty of 0,1 % (see Clause 1) means, for the example of
37、a transverse sensitivity of 1 %, that the measured value lies within the interval of 0,9 % to 1,1 %. All users of this part of ISO 16063 are expected to assess and report the uncertainty of measurement according to ISO 16063-1:1998, Annex A, to document their uncertainty expressed as expanded uncert
38、ainties for a coverage factor of 2 or a coverage probability of 95 %. It is the responsibility of the laboratory or end user to make sure that the reported values of expanded uncertainty are credible. 4 Determination of transverse sensitivity using a single-axis vibration generator 4.1 Apparatus The
39、 single-axis test system of transverse sensitivity specified in this clause consists of a single-axis vibration exciter that is equipped with a specially designed fixture that enables the transducer under test to be mounted such that its geometric axis of sensitivity is perpendicular to the directio
40、n of motion of the vibration exciter table (where the direction of the motion of the vibration exciter table shown in Figure 1 is defined as the Z-direction). It shall be possible to mount the test transducer at different angles about its sensitive axis, preferably for continuous rotation over at le
41、ast 180. An example (Reference 5) of an octahedral fixture is shown in Figure 1. Another example is the use of an electro-dynamic long-stroke vibration exciter operated in combination with a turntable driven by a stepper motor as specified in Clause 5. The amplitude of the transverse acceleration of
42、 the fixture due to transverse motion inherent in the vibration exciter shall be less than 1 % of the acceleration amplitude in the Z-direction at each of the test frequencies. For cases in which the measured transverse sensitivity is less than 2 % of the sensitivity measured on the geometric axis,
43、the transverse motion of the vibration exciter shall meet even higher requirements (e.g. 0,2 % at the test frequencies). To ensure that the transverse motion of the vibration exciter is sufficiently small, measurements of the transverse motion of the total setup (vibration exciter with fixture) with
44、 a load close in shape and weight to the transducer being tested should be performed beforehand or the transverse motion could be monitored during the measurement of the transverse sensitivity. For the measurement of the input and output signal of the transducer to be tested, see Clause 8. The frequ
45、ency range of the transverse test system is generally 1 Hz to 5 kHz, depending on the working range of the vibration exciter, and on the mass of the fixtures and of the transducer tested. Acceleration amplitudes from 1 m/s2to 200 m/s2can be generated. 4.2 Method 4.2.1 Test procedure Vibrate the tran
46、sducer at the reference amplitude and frequency on the geometric axis of sensitivity to determine its sensitivity, SN(briefly referred to as S). Determine the values of transverse sensitivity as a function of frequency, ST, by vibrating perpendicularly to the sensitive axis of the transducer at diff
47、erent angles about its sensitive axis. The directions and magnitudes of the maximum and minimum transverse sensitivity shall be reported at a designated test frequency or as a function of frequency. SANS 16063-31:2009This s tandard may only be used and printed by approved subscription and freemailin
48、g clients of the SABS .ISO 16063-31:2009(E) ISO 2009 All rights reserved 343215Key 1 screw unit for re-mounting the octahedron in different positions (angle shifts of 45) 2 transducer to be tested 3 octahedron 4 reference accelerometer 5 vibration exciter table Figure 1 Example of a fixture for moun
49、ting the test transducer with its sensitive axis perpendicular to the direction of the vibration generated by the vibration exciter 4.2.2 Expression of results Calculate the transverse sensitivity, T,S using Equation (1): outTTuSa= (1) where outu is the amplitude of the output signal of the transducer vibrating perpendicularly to its sensitive axis; Ta is the amplitude of the acceleration in the test direction. SANS 16063-31:2009This s tandard may only be used and printed by approved subscription and freemailing c
