Scope
ISO 7626-5
Experimental Modal Analysis Using Impact Excitation
This test method characterises the dynamic properties of structures through experimental modal analysis using impact hammer excitation. The method measures natural frequencies, damping ratios, and mode shapes by striking the structure and recording the resulting vibration response. It is widely used in aerospace, automotive, civil engineering, and mechanical equipment development to validate structural designs and identify potential vibration issues. Accreditation ensures proper instrumentation calibration, correct measurement methodology, and reliable data interpretation for safety-critical applications.
What it measures
- Natural frequencies (modal frequencies)
- Damping ratios (modal damping)
- Mode shapes (displacement patterns)
- Frequency response functions (FRF)
- Coherence and data quality metrics
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DIN EN ISO 7626-1
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BS EN ISO 7626-1
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NF EN ISO 7626-1
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UNI EN ISO 7626-1
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UNE EN ISO 7626-1
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NEN EN ISO 7626-1
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DIN EN ISO 7626-2
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BS EN ISO 7626-2
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NF EN ISO 7626-2
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UNI EN ISO 7626-2
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UNE EN ISO 7626-2
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NEN EN ISO 7626-2
1,817
Accredited labs
19
Countries
Showing 351–375 of 386 labs
Thomas Dudley
Active
BS 1212-2:1990 Clause 4
BS 1212-3:1990 Clause 4
DIN EN 997
Laktoseintoleranz (LCT -14055
BS 1212-4:1991 Clause 4, 13, 14
Total Clean Air
Active
ISO 14644-3
BS EN ISO 14644-2:2015:Part 2
DIN EN 12469
BS EN ISO 14644-1:2015
BS EN ISO 14644-4:2022
+ 3 more
Tru-Cal Metrology
Active
including dial and digital
LENGTH (cont’d)
Plain plug gauges (taper)
ANCILLARY MEASUREMENTS
Plain ring gauges (taper)
+ 3 more
Tyneside Standards
Active
Micrometers
See Notes 3 and 5
See Note 6
Caliper
length bars) – See Note 5
+ 3 more
UK Grid Solutions
Active
DIN EN 60255-22-2
IEC 61000-4-4: 2012
IEC 60255-26
IEC 60255-22-4
IEC 61000-4-5: 2005
+ 3 more
FNED142 BS EN ISO 11816-
FNES67 (P1) based on BS EN ISO
FNES16 (F13) based on ISO 6579-1:2017+A1
FNES16 (F13) based on BS EN
ISO 6579-1
+ 3 more
UL International (UK)
Active
DIN EN 12209
DIN EN 1155
DIN EN 12179
DIN EN 1935
DIN EN 1670
+ 3 more
UL VS
Active
(HSG 264, 2012)
and Appx. 3 of HSG 227 (2004))
guides HSG 264 (2012) and
ACoP L8 and BS 8580-1:2019
UTAC UK
Active
DIN EN 60068-2-64
DIN EN 60068-2-78
IEC 68-2-56:1988
DIN EN IEC 60068-2-5
DIN EN-60068-2-6
+ 2 more
Uniper Technologies
Active
DIN EN 13284-1
BS EN ISO 23210:2009
requirements of BS EN 14181:2014
IEC 60519-11
requirements of BS EN
+ 3 more
Chronic progressive external
LENGTH
Micrometer heads
Dial gauges and dial test
Depth
+ 3 more
University of Salford
Active
DIN EN 12667
ISO 8301
DIN EN 12939
DIN EN 12664
DIN EN ISO 13163
+ 3 more
University of Salford
Active
Pistonphones
Microphones
LS2/WS2 microphones
based:
Reverberation Time
(HSG 248) – 2021
ASB/10 based on HSG 248
(PCM) based on HSG 248
ASB/6 based on HSG 248
BS EN ISO 14644-1:2015
+ 3 more
VWR International
Active
TEMPERATURE
parameters and ranges)
indicators or recorders
WEIGHING INSTRUMENTS
Vintec Laboratories
Active
(HSG 248) – 2021
(PCM) based on HSG 248
P052 based on HSG 248
WSP UK
Active
(HSG 248) – 2021
AFC based on HSG 248
(PCM) based on HSG 248
SSA based on HSG 248
No matching labs found.