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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Vitesco Technologies GmbH Qualification Laboratory Schwalbach

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DAkkS D-PL-21928-02-00 Schwalbach, DE
VDE 0468-2-1 IEC 60068-2-1 VDE 0468-2-2 IEC 60068-2-2 DIN EN IEC 60068-2-11 + 3 more
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Volke Entwicklungsring SE

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DAkkS D-PL-20870-01-01 Wolfsburg, DE
DIN 72781-2 DIN EN 60068-2-53 DIN EN 60068-2-64 DIN EN-60068-2-27 DIN EN-60068-2-6 + 3 more
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Voltavision

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DAkkS D-PL-20464-01-00 Bochum, DE
IEC 62660-1 ISO 12405-4: 2018 IEC 60068-2-1 IEC 60068-2-2 DIN EN 60068-2-14 + 3 more
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WENZEL Metrology

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DAkkS D-K-17723-01-00 Wiesthal, DE
Koordinatenmessgeräte von <7000 mm under-Edge, UK INCA3D, Software von Inspect 3D, Cholet, F + 3 more
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WIKA Alexander Wiegand SE &

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DAkkS D-K-15105-01-00 Klingenberg, DE
Positiver und −1 bar bis −0,03 bar Positiver und negativer (ein- oder mehrgängige > −0,03 bar bis > 0,15 bar bis + 3 more
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WIN Messmittel und Service

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DAkkS D-K-17410-01-01 Korbußen, DE
− Parallelendmaße − Längenmessmittel − Durchmesser − Formabweichung − Gewinde + 3 more
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WINDTEST Grevenbroich

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DAkkS D-PL-11233-01-01 Grevenbroich, DE
IEC 61400-12-1 IEC 61400-12-2 IEC 61400-12-3 IEC 61400-12-5 IEC 61400-12-6 + 3 more
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Waagen-Dienst Kirste

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DAkkS D-K-20130-01-00 Meissen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen verwendete Abkürzungen: 1) In den CMC sind die erweiterten Messu + 2 more
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Waagen-Jöhnk

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DAkkS D-K-19520-01-00 Dätgen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) verwendete Abkürzungen:
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Waagen-Kissling

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DAkkS D-K-19038-01-00 Rimbach, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) verwendete Abkürzungen:
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Waagenfachhandel Hilke

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DAkkS D-K-17685-01-00 Hardegsen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen verwendete Abkürzungen:
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Wagner Umweltgeologie

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DAkkS D-PL-21231-01-00 Marienheide, DE
DIN EN ISO 5667-1 (A 4) * DIN 38402-A 12 * DIN 38402-A 13 * DIN EN ISO 5667-3 (A 21) * DIN 38402-A 30 * + 3 more
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Weber GmbH Weber Testzentrum

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DAkkS D-PL-18720-01-00 Aschaffenburg, DE
DIN EN IEC 60068-2-11 DIN EN 60068-2-14 DIN EN 60068-2-30 IEC 60068-2-31 DIN EN IEC 60068-2-38 + 3 more
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Wehrwissenschaftliches Institut für Werk- und Betriebsstoffe (WIWeB)

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DAkkS D-PL-14015-01-02 Erding, DE
DIN EN 2561 DIN EN ISO 14126 DIN EN ISO 14125 DIN EN 2563 DIN 53504 + 3 more
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Weidmüller Interface GmbH & Co. KG Detmold

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DAkkS D-PL-12095-01-01 Detmold, DE
DIN EN 50178: 1998 IEC 61131-2: 2020 IEC 61010-1 : 2010 DIN EN 61010-1 EN IEC 61010-2-201 + 3 more
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Werner Genest und Partner Ingenieur

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DAkkS D-PL-20012-01-00 Ludwigshafen, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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Werth Messtechnik GmbH Kalibrierlabor

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DAkkS D-K-15006-01-00 Gießen, DE
Steuerungssoftware Messvolumen mit einer Werth Messtechnik ≤ 2330 mm GmbH, Gießen, D Werth Messtechnik ≤ 600 mm Werth Messtechnik ≤ 150 mm
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Westenergie Netzservice GmbH Eurotest

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DAkkS D-PL-21876-01-01 Dortmund, DE
DIN IEC 60060-1 VDE 0432- 1 IEC 60270 VDE 0434 DIN EN 61243-1 + 3 more
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Westfalen Aktiengesellschaft Sondergasezentrum Hörstel

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DAkkS D-K-14054-01-00 Hörstel, DE
Kohlenstoffmonoxid *) Kohlenstoffdioxid Propan *) Stickstoffmonoxid Distickstoffmonoxid + 3 more
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Wieland Electric GmbH Qualitätslabor

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DAkkS D-PL-20465-01-00 Bamberg, DE
IEC 60947-1 IEC 60947-7-1 VDE 0611-1 IEC 60947-7-2 VDE 0611-3 + 3 more
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Wocken Industriepartner

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DAkkS D-K-20386-01-00 Meppen, DE
Parallelendmaße aus 0,5 mm DIN EN ISO 3650:1999 Einstelldorne Durchmesser 3 mm Durchmesser 5 mm + 3 more
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Wolfgang Sorge Ingenieurbüro für Bauphysik

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DAkkS D-PL-19990-01-01 Nürnberg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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Wuppertaler Waagenfabrik Neebe & Consbruch Inhaber Anja Trögeler e.Kfr.

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DAkkS D-K-15040-01-00 Wuppertal, DE
Charpy impact test (ISO 148-1) nichtselbsttätigen elektronischen Ersatzlastverfahren (Staffelverfahren) + 1 more
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WÄGETECHNIK WEHLE

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DAkkS D-K-21902-01-00 Wilsdruff ST Kesselsdorf, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) 1) In den CMC sind die erweiterten Messu
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Wölfel Engineering GmbH +

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DAkkS D-PL-19254-01-00 Höchberg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN 45641 DIN 45645-1 + 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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