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

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DAkkS D-PL-14119-01-01 Planegg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN ISO 8297 DIN EN ISO 12354-4 + 3 more
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Hämoglobin A1c Hämoglobin-Differenzierung Erythrozyten Basophile Granolozyten Eosinophile Granulozyten + 3 more
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NATEC Sensors

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DAkkS D-K-15139-01-01 Garching, DE
Railway brakes — conditions for homologa − Durchfluss von Flüssigkeiten Gleichspannung U (Simulation des Signals generators) + 3 more
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DAkkS D-K-17726-01-00 Pfullingen, DE
Elektrische Feldstärke / 2 V/m 2,5 V/m 1 V/m Magnetische Feldstärke / + 3 more
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DAkkS D-PL-17693-02-01 Hannover, DE
DIN EN ISO 15061 (D 34) DIN EN 27888 (C 8) DIN EN 1484 (H 3) ISO 5667-21 DIN 38404-C 10 + 3 more
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NonaChem

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DAkkS D-PL-21392-01-00 Ladenburg, DE
DIN EN ISO 2813 DIN EN ISO 6270-2 ISO 20567-1 DIN EN ISO 1518-1 DIN EN ISO 3248 + 3 more
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DAkkS D-K-18539-01-00 Falkensee, DE
Tensile testing of metallic materials (I positiver Überdruck -0,01 bar Absolutdruck p abs Taupunkttemperatur + 3 more
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DAkkS D-K-15132-01-00 Oelde, DE
Akustik Übertragungsmaß von Messmikrofonen Messmikrofonen mit Dämpfung eines + 3 more
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DAkkS D-PL-21956-01-00 München, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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DAkkS D-PL-21332-01-00 Allershausen, DE
DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN IEC 60068-2-38 DIN EN-60068-2-1 DIN EN-60068-2-2
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DAkkS D-K-15218-01-00 Friedrichsdorf (Taunus), DE
Druck 0,03 bar Absolutdruck Pabs > -0,3 bar > 3,0 bar > −0,02 bar + 3 more
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DAkkS D-K-20427-01-00 Lörrach, DE
− Wärmezähler Durchflusssensoren als Teilgeräte von Wärme- und Kältezählern: + 3 more
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DAkkS D-PL-17666-03-00 Herbrechtingen, DE
DIN EN IEC 60068-2-5 DIN EN IEC 60068-2-11 IEC 60068-2-14 DIN EN 60068-2-30 DIN EN IEC 60068-2-38 + 3 more
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DAkkS D-PL-12032-01-02 Hüllhorst, 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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DAkkS D-PL-11118-01-01 Rudolstadt, DE
DIN EN 1264-5 DIN EN 13647 DIN EN 71-10 DIN EN 50642 DIN EN ISO 14184-2 + 3 more
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PAConsult

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DAkkS D-PL-11130-01-02 Hamburg, DE
DIN 55440-1 DIN EN 22248 DIN EN 868-5 DIN EN 22876 DIN EN ISO 2234 + 3 more
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DAkkS D-K-19664-01-00 Hückelhoven, DE
Beschleunigung zu 25 mV bis 1 V (Sekundär) Schwingungsaufnehmer Schwingungsmessgeräte 0,1 m/s + 3 more
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DAkkS D-PL-12072-08-01 Berlin, DE
IEC 62271-1: 2017-07 IEC 62271-100: 2021 IEC 62271-101 IEC 62271-110 IEC 62271-111 + 3 more
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DAkkS D-PL-12072-01-00 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-12072-06-01 Ratingen, DE
DIN EN 61869-1 IEC 61869-1 DIN EN 61869-2 VDE 0414-9-2 IEC 61869-2 + 3 more
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DAkkS D-PL-14361-01-01 Speyer, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 ASTM D 86 DIN EN 13016-1 + 3 more
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DAkkS D-PL-17186-01-01 Blomberg, 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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DAkkS D-PL-21530-01-01 Sand am Main, DE
DIN EN IEC 60068-2-38 DIN EN IEC 60068-2-11 BS ISO 9227:2022 DIN EN 60068-2-14 IEC 60068-2-60 + 3 more
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DAkkS D-K-17519-01-01 Niestetal, DE
Parallelendmaße aus 0,5 mm Einstellringe aus Stahl * nach DIN EN ISO 3650:1999 Keramik * DIN EN ISO 3650:1999 + 3 more
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DAkkS D-PL-11296-01-01 Kassel, DE
DIN EN 16019 DIN 50100 DIN EN 61373 IEC 61373 DIN EN 60310 + 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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