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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Müller-BBM Industry Solutions GmbH Prüflaboratorium für Schall und Schwingungen, Elektromagnetische Felder und Licht, Immissionsschutz und Gefahrstoffe

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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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München Klinik gGmbH Medizet - Institut für Laboratoriumsmedizin und medizinische Mikrobiologie

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DAkkS D-ML-13106-01-01 München, DE
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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Narda Safety Test Solutions

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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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Niedersächsisches Landesgesundheitsamt

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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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Normec Valitech

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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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Norsonic-Tippkemper

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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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OBERMEYER Infrastruktur GmbH & Co. KG Institut für Immissionsschutz und Technische Akustik

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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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OLM Klimalabor

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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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ONNEKEN Meß- und Prüftechnik

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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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OPTOLUTION Messtechnik

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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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OSRAM GmbH Environmental Simulation Laboratory

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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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Ober Berg & Lukowiak

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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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OMPG

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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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Calibration & Repair

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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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PEHLA GmbH PEHLA Prüffeld Berlin Siemensstadt

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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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PEHLA GmbH PEHLA-Prüffeld Frankfurt/Main

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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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PEHLA GmbH PEHLA-Prüffeld Ratingen

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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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PETROLAB GmbH Laboratorium für Mineralöl- und Umweltanalytik

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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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PHOENIX TESTLAB

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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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PID test & engineering

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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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PMK - GmbH (Prüfen+Messen+Kalibrieren)

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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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PMZ Prüf- und Messtechnik Zentrum Kassel

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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 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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