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
1,817 Accredited labs
19 Countries

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DAkkS D-PL-14419-01-00 Karlsruhe, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN EN 14662-3 DIN EN 14211 + 3 more
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DAkkS D-PL-18547-02-03 Neumünster, DE
DIN EN 16174 DIN CEN ISO/TS 16179 DIN EN 15933 DIN ISO 15178 DIN EN 15936 + 3 more
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DAkkS D-ML-18515-01-00 Dresden, DE
GPT GOT GGT Salmonellen Shigellen + 3 more
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Leadec BV &

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DAkkS D-K-21171-01-01 Chemnitz, DE
Gleichspannung 33 mV Messgeräte 0,33 V 330 V Gleichstromstärke 33 µA Messgeräte 0,33 mA + 3 more
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UKAS 6998 Port Talbot, GB
(HSG 264, 2012)
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UKAS 4707 Port Talbot, GB
(HSG 248) – 2021 LSOP6 based on HSG 248 (PCM) based on HSG 248
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DAkkS D-K-21443-01-00 Schmalkalden, DE
(ein- und mehrgängige zylindrische Außen- und symmetrischem und unsymmetrischem Profil) Außengewinde + 3 more
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DAkkS D-PL-11240-01-01 Bremen, DE
DIN EN 60601-2-4 IEC 60512-4-1 DIN EN 124-2 IEC 60512-4-3 DIN EN 60601-2-44 + 3 more
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Leonardo UK

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UKAS 0461 Crewe Toll, GB
IEC 60068-2-2 IEC 60068-2-61 IEC 60068-2-1 MIL-STD-810B, 501 MIL-STD-810C, 501.1 + 3 more
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COFRAC 1-5749 Aspach-Le-Bas, FR
DIN ISO 17289 ISO 5667-9 (hors échant. DIN EN ISO 7027-2 NF X 31-615 (Uniquement DIN EN ISO 10523 + 3 more
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UKAS 0610 Bishop's Stortford, GB
(HSG 248) – 2021 QSOP 01 based on HSG 248 (PCM) based on HSG 248 QSOP 03 based on HSG 248
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UKAS 0340 Bishop's Stortford, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004)
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DAkkS D-ML-21457-02-00 Lehrte, DE
Aluminium Blei Eisen, Kupfer Ampicillin Cefepim + 3 more
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DAkkS D-K-21622-01-00 Unterschleißheim, DE
anteile Kohlenstoffmonoxid Kohlenstoffdioxid Methan Ethan + 3 more
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UKAS 2432 Newport, GB
(HSG 248) – 2021 staining based on HSG 248
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UKAS 9656 70 Pembroke Place, GB
accordance with (EN ISO 14644- BS EN ISO 14644-1:2015
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UKAS 29622 Chelmsford, GB
(HSG 264, 2012)
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UKAS 1119 Enfield, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 9681 Hextable, GB
(HSG 248) – 2021 ASB04 based on HSG 248 (PCM) based on HSG 248
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Lucideon

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UKAS 0013 Stone, GB
DIN EN 772-13 DIN EN 1052-2 DIN EN 772-20 DIN EN 772-14 DIN EN 1052-4 + 3 more
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UKAS 2569 Gateshead, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248 3492, ISO14966 and HSG 248 DIN EN 14629 + 3 more
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DAkkS D-K-15223-01-00 Wertheim, DE
Taupunkttemperatur Fixpunktzellen *) thermometer (SPRT) *) meter, direkt anzeigende thermometer und + 3 more
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DAkkS D-ML-14413-03-01 München, DE
Cryptococcus neoformans Cardiolipin AK Escherichia coli K1-AG Haemophilus influenzae Metromec Software AG + 3 more
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DAkkS D-ML-14413-01-01 München, DE
Gesamt IgG Albumin Treponema pallidum (Lues) Thrombozytäre Antikörper Treponema pallidum (Lues + 3 more
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UKAS 0227 Poole, GB
Plain ring gauges (taper) Plain gap gauges (parallel) Plain plug gauges (taper) LENGTH ANGLE + 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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