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BS EN ISO 8041-1:2017

$215.11

Human response to vibration. Measuring instrumentation – General purpose vibration meters

Published By Publication Date Number of Pages
BSI 2017 120
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This document specifies the performance specifications and tolerance limits for instruments designed to measure vibration values, for the purpose of assessing human response to vibration. It includes requirements for pattern evaluation, or validation, periodic verification and in situ checks, and the specification of vibration calibrators for in situ checks.

Vibration instruments specified in this document can be single instruments, combinations of instrumentation or computer-based acquisition and analysis systems.

Vibration instruments specified in this document are intended to measure vibration for one or more applications, such as the following:

  • hand-transmitted vibration (see ISO 5349‑1);

  • whole-body vibration (see ISO 2631‑1, ISO 2631‑2 and ISO 2631‑4);

  • low-frequency whole-body vibration in the frequency range from 0,1 Hz to 0,5 Hz (see ISO 2631‑1).

Vibration instruments can be designed for measurement according to one or more of the frequency weightings defined within each of these applications.

Three levels of performance testing are defined in this document:

  1. pattern evaluation or validation:

    1. pattern evaluation, i.e. a full test of the instrument against the specifications defined in this document;

    2. validation of one-off instruments, i.e. a limited set of tests of an individual vibration measuring system against the relevant specifications defined in this document;

  2. periodic verification, i.e. an intermediate set of tests designed to ensure that an instrument remains within the required performance specification;

  3. in situ checks, i.e. a minimum level of testing required to indicate that an instrument is likely to be functioning within the required performance specification.

PDF Catalog

PDF Pages PDF Title
2 National foreword
8 Foreword
9 Introduction
11 1 Scope
2 Normative references
12 3 Terms, definitions and symbols
3.1 Terms and definitions
3.1.1 General
14 3.1.2 Frequency-weighted values
16 3.2 Symbols
18 4 Reference environmental conditions
5 Performance specifications
5.1 General characteristics
20 5.2 Display of signal magnitude
5.2.1 General
5.2.2 Resolution and refresh rate
21 5.2.3 Stabilization, measurement start and display times
5.3 Electrical output
5.4 Vibration sensitivity
22 5.5 Accuracy of indication at reference frequency under reference conditions
5.6 Frequency weightings and frequency responses
5.6.1 Parameters
23 5.6.2 Band-limiting filter
5.6.3 a-v transition filter
24 5.6.4 Upward-step filter
5.6.5 Overall frequency weighting
5.6.6 Tolerances
25 5.7 Amplitude linearity
26 5.8 Instrument noise
5.9 Signal-burst response
29 5.10 Overload indication
30 5.11 Under-range indication
5.12 Time averaging
5.13 Running r.m.s. acceleration
31 5.14 Reset
5.15 Timing facilities
5.16 Electrical cross-talk
5.17 Vibration transducer characteristics
5.18 Power supply
32 6 Mounting
7 Environmental and electromagnetic criteria
7.1 General
7.2 Air temperature
33 7.3 Surface temperature
7.4 Electrostatic discharge
7.5 Radio-frequency emissions and public-power-supply disturbances
34 7.6 Immunity to AC power-frequency fields and radio-frequency fields
7.7 Ingress of water and dust
35 8 Provision for use with auxiliary devices
9 Instrument marking
10 Instrument documentation
11 Testing and calibration
38 12 Pattern evaluation
12.1 General
12.2 Testing requirements
39 12.3 Submission for testing
12.4 Marking of the vibration meter and information in the instrument documentation
12.5 Mandatory facilities and general requirements
12.6 Initial instrument preparation
12.7 Indication at the reference frequency under reference conditions
40 12.8 Electrical cross-talk
12.9 Vibration transducer
41 12.10 Amplitude linearity and under-range indication
12.10.1 Electrical tests of amplitude linearity
42 12.10.2 Mechanical tests of amplitude linearity
43 12.11 Frequency weightings and frequency responses
12.11.1 General
12.11.2 Mechanical tests of frequency response
44 12.11.3 Electrical tests of frequency response
45 12.11.4 Conformance
12.12 Instrument noise
46 12.13 Signal-burst response
12.14 Overload indication
12.15 Reset
47 12.16 Combined axis outputs
12.17 AC electrical output
12.18 Timing facilities
12.19 Power supply
12.20 Environmental, electrostatic and radio-frequency tests
12.20.1 General
48 12.20.2 Expanded uncertainties for measurements of environmental conditions
12.20.3 Acclimatization requirements for tests of the influence of air temperature and relative humidity
12.20.4 Test of the influence of air temperature and relative humidity combined
49 12.20.5 Influence of surface temperature
12.20.6 Influence of electrostatic discharges
12.20.7 Radio-frequency emissions and public-power-supply disturbances
50 12.20.8 Immunity to AC power-frequency fields and radio-frequency fields
51 12.21 Test report
52 13 Validation of one-off instruments
13.1 General
13.2 Testing requirements
13.3 Test object
53 13.4 Submission for testing
13.5 Marking of the one-off instrument and information in the instrument documentation
13.6 Mandatory facilities and general requirements
13.7 Initial instrument preparation
13.8 Test procedure
54 13.9 Indication at the reference frequency under reference conditions
55 13.10 Test parameters
13.10.1 Vibration measurement chain for hand-arm vibration
13.10.2 Vibration measurement chain for whole-body vibration
56 13.10.3 Vibration measurement chain low-frequency whole-body vibration
13.11 Conducting the test
57 13.12 Instrument noise
13.13 Electrical cross-talk
13.14 Overload indication
13.15 Timing facilities
58 13.16 Test report
14 Periodic verification
14.1 General
14.2 Testing requirements
14.3 Test object
14.4 Submission for testing
59 14.5 Preliminary inspection
14.6 Marking of the vibration meter and information in the instrument documentation
14.7 Test procedure
60 14.8 Test parameters
14.8.1 Vibration measurement chain for hand-arm vibration
14.8.2 Vibration measurement chain for whole-body vibration
14.8.3 Vibration measurement chain low-frequency whole-body vibration
61 14.9 Conducting the test
14.10 Test report
15 In situ checks
15.1 General
62 15.2 Preliminary inspection
15.3 Vibration sensitivity (field calibration)
63 Annex A (normative) Specification for field vibration calibrator
65 Annex B (informative) Frequency weightings
84 Annex C (informative) Realization of frequency weighting filters
88 Annex D (informative) Running r.m.s. time averaging
91 Annex E (informative) Vibration transducer characteristics
94 Annex F (informative) Tests for mounting systems
97 Annex G (normative) Instrument documentation
102 Annex H (normative) Phase response requirements for measurement of non-r.m.s. quantities
110 Annex I (informative) Guidelines for the estimation of the instrumental measurement uncertainty
116 Bibliography
BS EN ISO 8041-1:2017
$215.11