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
1,591 Accredited labs
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Bay SensorTec

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Beck-Messtechnik

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DAkkS D-PL-21251-01-00 Flein, DE
IEC 60068-2-1 IEC 60068-2-2 IEC 60068-2-6 DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 + 3 more
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Bernhard-Nocht-Institut für Tropenmedizin

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DAkkS D-ML-13090-01-00 Hamburg, DE
Echinococcus granulosus Echinococcus multilocularis Paragonimus uterobilateralis Ascaris lumbricoides (IgG) Brucella spp. (IgG, IgM) + 3 more
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Bertrandt Ingenieurbüro

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DAkkS D-PL-11184-01-00 Köln, DE
DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN IEC 60068-2-38 DIN EN 60068-2-67 DIN EN 60068-2-78 + 3 more
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Bertrandt Ingenieurbüro

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DAkkS D-PL-18365-01-01 München, DE
DIN EN 60068-2-30 IEC 60068-2-61 DIN EN 60068-2-57 DIN EN 60068-2-80 ISO 16750-3 + 1 more
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Bertrandt Ingenieurbüro

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DAkkS D-PL-23202-01-01 Tappenbeck, DE
DIN 75220 DIN EN ISO 6270-2 DIN 55635 DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-52 + 3 more
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Bertrandt Ingenieurbüro

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DAkkS D-PL-11184-01-01 Köln, DE
DIN EN 60068-2-67 DIN EN 60068-2-78 DIN EN-60068-2-1 DIN EN 60068-2-14 IEC/EN 60068-2-38:2009 Part 2-38: + 2 more
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Bertrandt Technologie

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DIN 75220 VDA 230-219 DIN EN ISO 6270-2 DIN 55635 DIN EN IEC 60068-2-11 + 3 more
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Big-M Büro für ingenieurgeophysikalische Messungen

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DAkkS D-PL-20978-01-00 Weitenhagen, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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Bioscientia Institut für Medizinische Diagnostik GmbH Bioscientia MVZ Berlin

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DAkkS D-ML-13452-02-00 Berlin, DE
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Bioscientia Institut für Medizinische Diagnostik GmbH Bioscientia MVZ Freiburg

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DAkkS D-ML-13452-10-00 Freiburg, DE
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Bioscientia Institut für Medizinische Diagnostik GmbH Bioscientia MVZ Ingelheim

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Bioscientia Institut für Medizinische Diagnostik GmbH Bioscientia MVZ Jena

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DAkkS D-ML-13452-05-00 Jena, DE
Zelldifferenzierung Erythrozyten Großes Blutbild Hämoglobin Kleines Blutbild + 3 more
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Bioscientia Institut für Medizinische Diagnostik GmbH Bioscientia MVZ Mainz

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DAkkS D-ML-13452-07-00 Mainz, DE
Hämoglobin (immunologisch) CA 125 CA 15-3 CA 19-9 CA 72-4 + 3 more
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Bioscientia Institut für Medizinische Diagnostik GmbH Bioscientia MVZ Nordrhein

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DAkkS D-ML-13452-06-00 Moers, DE
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Bioscientia MVZ Labor Karlsruhe

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Bioscientia MVZ Labor Mittelhessen

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Bioscientia MVZ Labor Saar

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Birmingham City Council

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UKAS 0726 Garretts Green, GB
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Bizerba SE &

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DAkkS D-PL-15018-01-00 Balingen, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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Blower Door

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BonassisaLab

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ACCREDIA 00295 Foggia, IT
ISO 19250 EPA 549.2 1997 EPA 548.1 1992 EPA 3005 EPA 6020 + 3 more
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Bonk-Maire-Hoppmann

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DAkkS D-PL-20090-01-00 Garbsen, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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Bradley Environmental Consultants

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UKAS 1155 Halesowen, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248 (HSG 264:2012)
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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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