BS ISO 16063-31:2009
Current
The latest, up-to-date edition.
Methods for the calibration of vibration and shock transducers Testing of transverse vibration sensitivity
Hardcopy , PDF
English
30-11-2009
Foreword
1 Scope
2 Normative references
3 Uncertainty considerations
4 Determination of transverse sensitivity using a
single-axis vibration generator
5 Determination of the transverse sensitivity using
a vibration generator with turntable
6 Determination of transverse sensitivity using a test
system with X- and Y-vibration generators
7 Determination of the transverse sensitivity using a
tri-axial vibration generator
8 Equipment for measuring of the input and output
signals of the transducer to be tested
9 Preferred amplitudes and frequencies
Annex A (normative) - Definition of transverse sensitivity
Bibliography
Provides details of the instrumentation and methods to be used for transverse vibration sensitivity testing.
Committee |
GME/21
|
DevelopmentNote |
Supersedes BS 6955-11(1994) and 08/30182517 DC. (11/2009)
|
DocumentType |
Standard
|
Pages |
28
|
PublisherName |
British Standards Institution
|
Status |
Current
|
Supersedes |
This part of ISO16063 specifies details of the instrumentation and methods to be used for transverse vibration sensitivity testing. It applies to rectilinear velocity and acceleration transducers.
The methods and procedures specified in this part of ISO16063 allow the determination of the sensitivity of a transducer to vibration in the plane perpendicular to its geometric axis of sensitivity (see AnnexA). Because the magnitude of this transverse sensitivity can vary with the direction of the applied 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 methods 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, 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.
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 of sensitivity (i.e. when the bending beam is deflected by a vibration to be measured).
This part of ISO16063 is applicable to a frequency range from 1Hz to 5kHz and for a dynamic range from 1m/s2 to 1000m/s2 (frequency dependent) and from 1mm/s to 1m/s (frequency dependent). Although among all 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 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.
Standards | Relationship |
ISO 16063-31:2009 | Identical |
ISO 16063-21:2003 | Methods for the calibration of vibration and shock transducers — Part 21: Vibration calibration by comparison to a reference transducer |
ISO 266:1997 | Acoustics — Preferred frequencies |
ISO 2041:2009 | Mechanical vibration, shock and condition monitoring Vocabulary |
ISA RP37.2 : 1982 | GUIDE FOR SPECIFICATIONS AND TESTS FOR PIEZOELECTRIC ACCELERATION TRANSDUCERS FOR AEROSPACE TESTING |
ISO 16063-1:1998 | Methods for the calibration of vibration and shock transducers Part 1: Basic concepts |
ISO 16063-11:1999 | Methods for the calibration of vibration and shock transducers Part 11: Primary vibration calibration by laser interferometry |
ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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