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
🇩🇪 DIN EN ISO 7626-1 🇬🇧 BS EN ISO 7626-1 🇫🇷 NF EN ISO 7626-1 🇮🇹 UNI EN ISO 7626-1 🇪🇸 UNE EN ISO 7626-1 🇳🇱 NEN EN ISO 7626-1 🇩🇪 DIN EN ISO 7626-2 🇬🇧 BS EN ISO 7626-2 🇫🇷 NF EN ISO 7626-2 🇮🇹 UNI EN ISO 7626-2 🇪🇸 UNE EN ISO 7626-2 🇳🇱 NEN EN ISO 7626-2
1,817 Accredited labs
19 Countries

Showing 176–200 of 1,817 labs

ENAC LE1004 Logroño, ES
IEC 61400-11:2012/ AMD:2018 IEC 61400-12-2 IEC 61400-50-2 IEC 61400-12-1 IEC 61400-12-3 + 3 more
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BASEC Group

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UKAS 5950 Crownhill, GB
BS 4553-1:1998 BS 4553-2:1998 BS 4553-3:1998 BS 5308-1: 1986 (withdrawn) BS 5308-2: 1986 (withdrawn) + 3 more
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DAkkS D-PL-17407-01-00 Großburgwedel, DE
DIN EN 1766 DIN EN 12390-1 DIN EN 12390-2 DIN EN 12390-3 DIN EN 12390-5 + 3 more
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UKAS 7511 Brentwood, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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DAkkS D-PL-12028-01-00 Radolfzell am Bodensee, DE
IEC 61000-4-2: 2008 ISO 11452-2: 2019 ISO 11452-3 ISO 11452-4: 2020 ISO 11452-5: 2002 + 3 more
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ACCREDIA 01346 Nichelino, IT
DIN EN 60068-2-78 DIN EN 60068-2-30 ISO 16750-2: 2012 DIN EN IEC 60068-2-38 DIN EN 60068-2-14 + 2 more
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BDA Surveying

Active
UKAS 2791 Oadby, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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BDA Surveying

Active
UKAS 0365 Oadby, GB
(HSG 264, 2012)
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DAkkS D-PL-20433-01-00 Augsburg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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UKAS 10646 Lincoln, GB
5 of HSG 227 (2004)) (HSG 264, 2012)
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DAkkS D-PL-19685-01-00 Berlin, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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DAkkS D-PL-19253-01-00 Hamburg, DE
DIN 52186 ISO 21527-1 DIN EN ISO 527-3 IEC 61924-2 DIN EN 62233 + 3 more
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BIOKIM srl

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ACCREDIA 00740 Modena, IT
ISO 18787 DIN EN ISO 6888-1 UNI 10590 DIN EN 61442 DIN EN ISO 15587-1 + 3 more
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ACCREDIA 00518 Guarene, IT
0,2 0,003 bis 0,006 (HLA DQ8 (HLA DQB*03:02) ISO 18787 BS EN 15662 DIN EN ISO 6888-1 + 3 more
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BIOTECNAL

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ENAC LE582 Sant Quirze del Valles, ES
UNE-EN ISO 6579-1 UNE-EN ISO 6222 UNE-EN 26777 UNE-EN ISO 7027-1 en 31-7-79 (BOE 29-08-79) + 3 more
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BIOXAL

Active
COFRAC 1-7423 Chalon-Sur-Saône, FR
DIN EN 17387 DIN EN 13697
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COFRAC 1-6232 Nantes, FR
NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de NF X 43-050 ISO 16000-7
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COFRAC 1-0973 Sevres, FR
NF X 43-269 NF X 43-050 ISO 22262-1 NF X 43-269 - Annexe K NF X 43-298 + 3 more
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DAkkS D-PL-18867-01-02 Eching am Ammersee, DE
ISO 10381-8 DIN ISO 10381-1 DIN ISO 10381-2 DIN ISO 10381-3 DIN ISO 10381-4 + 3 more
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BOC

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UKAS 0011 Guildford, GB
DIN EN ISO 18119 BS EN ISO 10460:2018 BS EN ISO 11623:2015 BS EN 15888:2014 BS EN 14876:2007/Internal proceduresDiss + 2 more
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DAkkS D-PL-19572-01-01 Bochum, DE
DIN EN ISO 6246 DIN 53160-1 DIN EN ISO 22854 (LBLS) (OMIM 611105) (c.228- DIN EN 13016-1 + 3 more
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UKAS 0578 Garston, GB
BS EN ISO 10140-2:2021 BS EN ISO 10140-3:2021 BS EN ISO 717-2:2020 ISO 7171 BS EN ISO140-3:1995 (withdrawn) + 3 more
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ACCREDIA 00662 Palermo, IT
DIN EN ISO 7730 ISO 5667-5 ISO 17604 DIN EN ISO 6888-1 ISO 8573-4 + 3 more
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UKAS 0823 Reykjavik 104, IS
Nominal value TEMPERATURE See Notes 1 to 3 TORQUE Case Manager: BC4 + 1 more
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BSRIA

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UKAS 1053 Bracknell, GB
ISO 11451-1 IEC 62442-1 DIN EN 16147 DIN EN 12101-3 DIN EN 14825 + 3 more
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Industries

Aerospace and aviation Automotive and rail vehicles Civil engineering and structures Mechanical equipment manufacturing Wind energy systems

Related Standards

  • ISO 7626-1 Vibration and shock — experimental modal analysis — Part 1: fundamentals and overview
  • ISO 7626-2 Vibration and shock — experimental modal analysis — Part 2: instrumentation for impact excitation
  • ISO 9614-1 Acoustics — determination of sound power levels of noise sources using sound intensity — Part 1: measurement at discrete points

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