ISO 7626-5

Experimental Modal Analysis Using Impact Excitation

This test method characterises the dynamic properties of structures through experimental modal analysis using impact hammer excitation. The method measures natural frequencies, damping ratios, and mode shapes by striking the structure and recording the resulting vibration response. It is widely used in aerospace, automotive, civil engineering, and mechanical equipment development to validate structural designs and identify potential vibration issues. Accreditation ensures proper instrumentation calibration, correct measurement methodology, and reliable data interpretation for safety-critical applications.

What it measures

  • Natural frequencies (modal frequencies)
  • Damping ratios (modal damping)
  • Mode shapes (displacement patterns)
  • Frequency response functions (FRF)
  • Coherence and data quality metrics
🇩🇪 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 7626-2 🇬🇧 BS EN ISO 7626-2 🇫🇷 NF EN ISO 7626-2 🇮🇹 UNI EN ISO 7626-2 🇪🇸 UNE EN ISO 7626-2 🇳🇱 NEN EN ISO 7626-2
1,591 Accredited labs
17 Countries

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1A CAL

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DAkkS D-K-15115-01-00 Kassel, DE
- Gleichspannung Josephson-Josephson Multimeter Quellen > 0,2 V Spannungsnormale + 3 more
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3-Rath Kalibrier+Prüftechnik

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DAkkS D-K-15158-01-00 Haiger, DE
Sound intensity — scanning method (ISO 9 Härteprüfmaschinen Knoop- und 70 HR15N 42 HR30N + 3 more
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3D Service

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DAkkS D-K-18164-01-01 Partenstein, DE
Münchingen, D CAM 2, Software von Holos, Software von Carl Metrologic, Software von Metrologic Group ≤ 9090 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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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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DAkkS D-K-12115-01-00 Minden, DE
Absolutdruck p abs positiver Überdruck Positiver Überdruck p e Überdruck p + 3 more
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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
DIN EN 13018 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 IEC 60068-2-29 DIN EN 60068-2-30 + 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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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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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
DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN IEC 60068-2-38 DIN EN 60068-2-53 DIN EN 60068-2-64 + 3 more
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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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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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Accon

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DAkkS D-PL-19965-01-00 Greifenberg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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Ahlborn Meß- und Regelungstechnik

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DAkkS D-K-19342-01-02 Holzkirchen, DE
Taupunkttemperatur Railway braking — urban guided transport Temperaturtransmitter Widerstandssensor *) –30 °C + 3 more
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Airbus Defence and Space

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DAkkS D-K-18731-01-01 Manching, DE
- Gleichspannung / Messgeräte 1 µV Quellen > 1 V + 3 more
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Akustik + Bauphysik Süd Burkhart und Partner Beratende Ingenieure PartGmbB

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DAkkS D-PL-22800-01-00 Pöcking, DE
DIN 4150-2 DIN 4150-3
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Akustikbüro Dahms

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DAkkS D-PL-20065-01-00 Potsdam, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN EN 61400-11
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Allgäuer Messzentrum

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DAkkS D-K-19562-01-01 Kaufbeuren, DE
Durchmesser 1 mm 510 mm Rundheitsabweichung 1 mm Parallelitätsabweichung Rundheitsabweichung + 3 more
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Industries

Aerospace and aviation Automotive and rail vehicles Civil engineering and structures Mechanical equipment manufacturing Wind energy systems

Related Standards

  • ISO 7626-1 Vibration and shock — experimental modal analysis — Part 1: fundamentals and overview
  • ISO 7626-2 Vibration and shock — experimental modal analysis — Part 2: instrumentation for impact excitation
  • ISO 9614-1 Acoustics — determination of sound power levels of noise sources using sound intensity — Part 1: measurement at discrete points

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