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
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IEC 60335-1: 2010 IEC 60335-2-2 IEC 60335-2-3 DIN EN 60335-2-3: 2002 IEC 60335-2-4 + 3 more
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DEKRA Testing and Certification, S.A. (Unipersonal)

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ENAC LE147 Campanillas, ES
IEC 61730-2 IEC 61215-1-2 IEC 61215-2 IEC 61215-1-3 IEC 61215-1-4 + 3 more
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DELVIT CHIMICA

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ACCREDIA 00726 Zumpano - Frazione Zona industriale, IT
DIN EN 12457-2 AOAC 997.02 2000 DIN EN ISO 6888-2 DIN EN ISO 15587-1 ISO 4832 + 3 more
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DEUTA-WERKE

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DAkkS D-PL-12087-01-00 Bergisch Gladbach, 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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DEUTZ Aktiengesellschaft Kalibrierstelle für physikalische Größen

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DH Budenberg A division of WIKA Instruments

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UKAS 0138 Irlam, GB
Gas pressure (absolute) Gas pressure (gauge) Hydraulic pressure (gauge) Hydraulic Pressure (absolute) PRESSURE (cont’d) + 1 more
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DIAL

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DIN 5032-1 DIN 5032-2 DIN 5032-4 DIN 5033-8 DIN 5036-3 + 3 more
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DIANOVIS

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Kleines Blutbild (maschinell) Differentialblutbild (maschinell) Thrombozyten Retikulozyten Natriumchlorid + 3 more
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DILLINGER FRANCE

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COFRAC 1-6191 Grande Synthe, FR
NF EN ISO 6892-1 (méthode DIN EN 10164 ASTM E 8 ASTM A 370 DIN EN ISO 6508-1 + 3 more
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DIMETEC Elektro GmbH Labor für elektrische Meßtechnik

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DIN CERTCO Gesellschaft für Konformitätsbewertung mbH Prüfzentrum Augenschutz

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ASTM C 1166 IEC 60512-16-7 ID168 IEC 60512-16-9 AK gegen Sc1-70 + 3 more
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DIRECCIÓN GENERAL DE LA GUARDIA CIVIL. SERVICIO DE CRIMINALÍSTICA

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SM 5210 D UNE-EN ISO 27888 SM 5220 D SM 2130 B UNE-EN ISO 11885 + 3 more
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DIXI Microtechniques

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COFRAC 1-7430 Marchaux-Chaudefontaine, FR
DIN EN 60068-2-64 DIN EN-60068-2-1 DIN EN 60068-2-78 DIN EN-60068-2-2 DIN EN 60068-2-14 + 3 more
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DKMS Life Science Lab g

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Antikörper FILA-Klasse I Lymphozytäre Kreuzprobe E, -DRB1, -DQB1, -DPB1, DRB3/4/5, -DQA1, KIR MICA, MICB, CCR5832 + 3 more
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DM Calibration

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LENGTH Blade type Straight edges Surface plates External micrometer + 3 more
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DMT APS 2 Prüfstelle für Lufthygiene Prüfstelle für Kälte- Klima und Wärmetechnik

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DAkkS D-PL-11035-01-02 Essen, DE
ID136 > 140 DIN EN 143 DIN EN ISO 21149 DIN EN 13274-1 + 3 more
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DMT GmbH & Co. KG Messstelle für Erschütterungen

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DIN 4150-1 DIN 4150-2 DIN 4150-3
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DNA Diagnostik Hamburg MVZ GbR Abteilung Molekulargenetik

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HLA-Typsierung (HLA-B*27) Azoospermiefaktor (AZFa/AZFb/AZFc) Chorea Huntington (HTT) OMIM# 143100 + 3 more
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DNKA

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DNV Energy Systems Germany

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DAkkS D-K-11134-03-00 Kaiser-Wilhelm-Koog, DE
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DPA Analyses pour le Bâtiment Marseille

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COFRAC 1-10039 Marseille, FR
NF X 43-050 NF X43-050 (parties ISO 22262-2 NF ISO 22262-1 et/ou ISO 22262-1
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DPA Analyses pour le Bâtiment Toulouse

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COFRAC 1-10029 Colomiers, FR
NF X 43-050 NF X43-050 (parties
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DPA Analyses pour le Bâtiment Villebon

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COFRAC 1-10041 Villebon-Sur-Yvette, FR
NF X 46-032 NF X 43-050 NF X43-050 (parties
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DRACE GEOCISA

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EPA 9056 ISO 13167 SM 3120 B ISO 13166 UNE 73350-1
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DRK-Blutspendedienst Baden-Württemberg-Hessen gemeinnützige

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DAkkS D-ML-17345-01-01 Frankfurt, DE
Faktor-V-Mangel (F5 inklusive Thrombozyten, PAC-1 Bindung CASQ2, KCNJ2, CALM2, CALM3, TECRL ) dbSNP r6027 ) Kardiomyopathie (PKP2, DSG2, SCN5A ) + 3 more
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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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