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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1A CAL

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DAkkS D-K-15115-01-00 Kassel, DE
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Sound intensity — scanning method (ISO 9 Härteprüfmaschinen Knoop- und 70 HR15N 42 HR30N + 3 more
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DAkkS D-K-18164-01-00 Partenstein, DE
Metrologic, Software von Metrologic Group ≤ 9090 mm CAM 2, Software von Münchingen, D Chur, CH, ≤ 5000 mm + 3 more
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8tree GmbH 8tree Calibration Lab

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DAkkS D-K-21981-01-00 Konstanz, DE
8tree Scanner / 0 mm bis 100 mm Laterale Größe von Tiefenmaß/ -unterstand (Härteskalen HV0,01
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A & B KMG Service

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DAkkS D-K-21221-01-00 Altenbuch, DE
Vickers hardness test (ISO 6507) Koordinatenmessgeräte Koordinatenmessger Steuerungssoftware Messvolumen mit einer Metromec CM, Software Raumdiagonale von von Metromec Software ≤ 750 mm + 3 more
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ABB AG Electrification - Distribution Solutions

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DAkkS D-PL-12115-01-01 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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ABB AG Kalibrierlaboratorium für Druck, Durchfluss und Temperatur

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ADU Cologne Institut für Immissionsschutz

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DAkkS D-PL-20232-01-00 Köln, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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AERA Consulting & Engineering Gesellschaft für Umweltmeßtechnik

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DAkkS D-PL-20374-01-00 Mühlhausen, DE
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DAkkS D-PL-22637-01-02 Kiel, DE
DIN ISO 10381-2 DIN ISO 10381-4 DIN ISO 10381-5 DIN ISO 18400-104 DIN ISO 18400-203 + 3 more
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AIP

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DAkkS D-K-21076-01-01 Haldenwang, DE
Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Messgeräte im Kraftfahrwesen − Abgasmessgeräte für Fremdzündungsmotor + 3 more
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AKL Messtechnik

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DAkkS D-K-18095-01-00 Karlsfeld, DE
/ Messgeräte 0,001 V > 0,22 V > 2,2 V > 11 V + 3 more
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AKS Aqua-Kommunal-Service

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DAkkS D-PL-14191-01-01 Frankfurt (Oder), DE
DIN 38402-A 11 DIN 38402-A 12 DIN 38402-A 13 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) + 3 more
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AKUVIB Engineering and Testing

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DAkkS D-PL-11133-01-01 Bochum, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847 IEC 61000-4-4: 2012 + 3 more
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AL-PRO

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DAkkS D-PL-11316-01-00 Großheide, DE
IEC 61400-12-1 * IEC 61400-12-5 * IEC 61400-50 * IEC 61400-50-1 * IEC 61400-50-2 * + 1 more
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ALS Germany

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DAkkS D-PL-14162-01-03 Altenberge, DE
DIN EN ISO 15587-1 DIN EN ISO 15587-2 DIN EN ISO 14403-2 DIN 38405-4 DIN 38405-8 + 3 more
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AMETEK GmbH Geschäftsbereich Taylor Hobson

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DAkkS D-K-15032-02-00 Weiterstadt, DE
Railway brake — magnetic track brakes (U auch als Vor-Ort-Kalibrierung Rillentiefe Pt auf 0,2 µm Tiefeneinstellnormalen Rauheit auf Raunormalen + 3 more
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APL Automobil-Prüftechnik Landau

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DAkkS D-PL-11082-01-01 Landau, DE
DIN 51757 DIN EN ISO 12185 DIN EN ISO 3104 ISO 3105 ASTM D 445 + 3 more
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AQRAT

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DAkkS D-K-15060-01-00 Dettingen unter Teck, DE
Messschieber für 0 mm Außen-, Innen- und > 500 mm > 1000 mm Tiefenmessschieber * 0 mm Sondermessschieber 0 mm + 3 more
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ASAP Electronics

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DAkkS D-PL-12160-01-01 Gaimersheim, DE
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ASC

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DAkkS D-K-18110-01-00 Pfaffenhofen a.d. Ilm, DE
Beschleunigung 0,5 m/s² bis Beschleunigungsaufnehmer 10 m/s² stoßförmig Schwingungsaufnehmer 300 m/s²
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ATESTEO GmbH & Co. KG ATESTEO Kalibrierlabor

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DAkkS D-K-19792-01-01 Alsdorf, DE
Gleichstromleistung / Messgeräte Wirkleistung Leistungsfaktor - Gleichspannung + 3 more
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AUMOVIO Germany

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DAkkS D-PL-22228-01-01 Regensburg, DE
ISO 11451-1 ISO 11451-2: 2015 ISO 11451-4: 2013 ISO 11452-1 ISO 11452-2: 2019 + 3 more
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AUMOVIO Germany

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DAkkS D-PL-22228-06-01 Villingen-Schwenningen, DE
ISO 11452-2: 2019 ISO 11452-4: 2020 ISO 11452-5: 2002 ISO 11452-8: 2015 ISO 10605 + 3 more
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AVL DiTEST

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DAkkS D-K-20974-01-00 Cadolzburg, DE
Abgasmessgeräte für − Abgasmessgeräte für Fremdzündungsmotor Kohlenstoffmonoxid Kohlenstoffmonoxid CO Kohlenstoffdioxid CO2 + 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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