ISO 7626-2

Experimental Modal Analysis – Single-Point Excitation

ISO 7626-2 describes procedures for experimental modal analysis using single-point, single-axis excitation to characterise the dynamic properties and natural frequencies of structures and machines. This test method captures frequency response functions and mode shapes essential for structural design validation, vibration control, and fault diagnosis. Aerospace, automotive, civil engineering, and machinery manufacturers use modal analysis to refine designs and understand dynamic behaviour under operational loads. Accreditation ensures rigorous application of measurement protocols and data quality standards supporting engineering confidence in structural performance predictions.

What it measures

  • Frequency response functions (FRF) over specified frequency range
  • Natural frequencies (resonances) and modal damping ratios
  • Mode shapes and structural deflection patterns
  • Coherence and measurement quality indicators
  • Dynamic stiffness and impedance characteristics
🇩🇪 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 7626-5 🇬🇧 BS EN ISO 7626-5 🇫🇷 NF EN ISO 7626-5 🇮🇹 UNI EN ISO 7626-5 🇪🇸 UNE EN ISO 7626-5 🇳🇱 NEN EN ISO 7626-5
1,591 Accredited labs
17 Countries

Showing 1,201–1,225 of 1,591 labs

UKAS 10483 Ossett, GB
(HSG 248) – 2021 SAC-SOP-15 based on HSG 248 SAC-SOP-07 based on HSG 248 staining based on HSG 248
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UKAS 0809 Peterlee, GB
DC CURRENT DC Resistance DC VOLTAGE DC RESISTANCE (continued) Generation (continued) + 3 more
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RvA L540 Bergschenhoek, NL
Clause 5, IEC 60068-2-31 IEC 60068-2-27 IEC 60068-2-64 IEC 60068-2-6
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ACCREDIA 01827 Roma, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
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UKAS 2210 Wilton International, GB
(HSG 248) – 2021 DI/AN/ME/025 based on HSG 248 DI/AN/ME/001 based on HSG 248 DI/AN/ME/026 based on HSG 248 (PCM) based on HSG 248
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ServiceCal

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UKAS 0152 Heywood, GB
PRESSURE (cont’d) DC CURRENT DC VOLTAGE CFH-Gen, Macula-Degeneration Measurement + 3 more
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UKAS 9157 Sheffield, GB
LENGTH Plain plug gauges (parallel) Internal Caliper LENGTH (cont’d) + 3 more
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DAkkS D-PL-11327-03-00 Hamburg, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 DIN EN 13016-1 DIN EN 13016-2 + 3 more
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UKAS 1066 Leeds, GB
ASTM E 2149-20 BS EN ISO 20743:2021 Section ISO 14119 BS EN ISO 20645:2004 BS 1425-1:1991 Appendix A + 3 more
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DAkkS D-PL-11222-01-01 Oststeinbek, DE
ISO 37 ISO 8513 DIN EN 1393 ISO 21527-2 DIN EN ISO 527-4 + 3 more
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DAkkS D-PL-11055-04-00 Amberg, DE
IEC 60947-1 IEC 60947-2 IEC 60947-3 IEC 60947-4-1 IEC 60947-4-2 + 3 more
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DAkkS D-K-11055-06-02 Fürth, DE
Thermodynamische Messgrößen Temperaturmessgrößen - Direktanzeigende Thermometer Railway brake handbooks (UIC 547) - Thermopaare, Thermoelemente + 3 more
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DAkkS D-PL-11055-10-01 Berlin, DE
DIN EN IEC 60255-1 DIN EN 60255-27: 2014 IEC 60255-27: 2013 DIN EN 60068-2-1 2008 DIN EN 60068-2-14 + 3 more
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DAkkS D-PL-11055-06-01 Amberg, DE
IEC 61000-6-1 VDE 0839-6-1 IEC 61000-6-2: 2005 VDE 0839-6-2 IEC 61000-6-3: 2006 + 3 more
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DAkkS D-PL-11055-09-00 Frankfurt am Main, DE
DIN IEC 60060-1 IEC 60068-2-1 DIN EN IEC 60068-2-11 IEC 60068-2-14 IEC 60068-2-17 + 3 more
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DAkkS D-PL-11055-26-01 Erlangen, DE
IEC 61000-4-2: 2008 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 IEC 61000-4-7 + 3 more
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DAkkS D-PL-21472-02-00 Erlangen, DE
DIN 45641 DIN 45630-1 DIN 45635-1 DIN 45635-14 DIN ISO 10494 + 3 more
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DAkkS D-PL-21237-02-00 Wegberg, DE
DIN EN 15625 IEC 61133 DIN 27202-10 DIN EN 15746-1 DIN EN 60068-2-64 + 2 more
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DAkkS D-PL-21237-01-01 Braunschweig, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847-4-3 IEC 61000-4-4: 2012 + 3 more
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Siemens

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UKAS 21541 Congleton, GB
IEC 61000-4-6: 2013 IEC 61000-4-29: 2000 IEC 61000-4-11: 2004 IEC 61000-4-4: 2012 AS/NZS CISPR 11:2004 + 3 more
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UKAS 9248 Winall, GB
DIN EN 13821 Sigma-HSE (UK) Ltd DIN EN 14034-1 BS EN ISO/IEC 80079-20-2:2016 DIN EN 14034-2 + 3 more
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Smithers MSE

Active
UKAS 0112 Leatherhead, GB
BS ISO 5636-3:2013 BS ISO 5636-5:2013 BS ISO 2470-1:2016 BS ISO 2470-2:2008 ISO 2759 + 3 more
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UKAS 0369 Wellington, GB
(HSG 248) – 2021 R24 based on HSG 248 staining based on HSG 248
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UKAS 1922 Near Wellington, GB
based on BS EN ISO 6579-1: ISO 21528-2 ISO 21149:2017+Amd1:2022 DIN EN ISO 18415 method based on BS ISO 16649-2: + 3 more
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DAkkS D-ML-13177-02-00 Bamberg, DE
Verschlußzeit Kollagen/ADP Kollagen/Epinephrin Basophile Granulozyten Eosinophile Granulozyten Erythrozyten + 3 more
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Industries

Aerospace and defence engineering Automotive design and validation Civil engineering and bridge design Heavy machinery and equipment development Vibration and noise control consulting

Related Standards

  • ISO 7626-1 Vibration and shock—Experimental determination of mechanical mobility—Part 1: Basic definitions and transducers
  • ISO 7626-5 Vibration and shock—Experimental determination of mechanical mobility—Part 5: Coupling of mechanical mobility measurement instrumentation
  • ISO 6954 Mechanical vibration and shock—Acceleration transducers—Specifications for laboratory standard instruments

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