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
1,817 Accredited labs
19 Countries

Showing 1,051–1,075 of 1,817 labs

DAkkS D-ML-20420-01-00 Regensburg, DE
Rapid EDTA-Plasma Reagin Lipoid-Antikörper/Treponema Treponema pallidum Enteritiserreger (Salmonella Shigella spp., Yersinia spp.) + 3 more
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DAkkS D-ML-20420-02-00 Regensburg, DE
Cyclosporin A 25-Hydroxy Vitamin D Ethylglucuronid, Ethylsulfat Everolimus Freies Metanephrin + 3 more
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DAkkS D-ML-21356-01-00 Martinsried, DE
Kleines Blutbild Großes Blutbild Retikulozyten Thrombozyten Lymphome/Monoklonale Gammopathie + 3 more
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DAkkS D-ML-20723-01-00 Hamburg, DE
Haemoglobin A1c Basophile Eosinophile Erythrozyten MCH, MCHC, MVC + 3 more
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DAkkS D-ML-13049-01-01 Düsseldorf, DE
10-Hydroxycarbazepin (MHD) 5-Hydroxyindolessigsäure Adrenalin Ampicillin Carbamazepin-10,11-epoxid + 3 more
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DAkkS D-ML-13316-01-01 Dessau-Roßlau, DE
Oxcarbazepin, 10-OH-Carbamazepin Nikotin Galactose Vilazodon Temazepam + 3 more
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DAkkS D-ML-22830-01-00 München, DE
Hämoglobin HbA1c (Glykohämoglobin) Basophile Eosinophile Erythrozyten + 3 more
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DAkkS D-ML-13439-01-01 Bremen, DE
Hämoglobin 1,4-Methylimidazolessigsäure Imidazolessigsäure 10-Hydroxy-Oxcarbazepin (Metaboliten 11 dehydro-Thromboxan B2 + 3 more
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DAkkS D-ML-13171-01-00 Hamburg, DE
Thrombozytenaggregation werkzeuge Typ II Thrombozytensekretion Alprazolam inklusive Metabolit a-Hydroxy-Alprazolam + 3 more
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DAkkS D-ML-13215-01-01 Oldenburg, DE
Erythrozyten Thrombozyten Differentialblutbild Hämatokrit MCV + 3 more
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DAkkS D-ML-13354-01-00 Lüdenscheid, DE
Großes Blutbild Kleines Blutbild Liquordiagnostik Retikulozyten Natriumchlorid + 3 more
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DAkkS D-ML-19073-01-00 Hamburg, DE
Erythrocyten Leukocyten MCV Hämoglobin Hämatokrit + 3 more
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DAkkS D-ML-23124-01-01 Marburg, DE
Syndrom, Gene: AKT1, PIK3CA, PTEN, SEC23B Carney-Komplex, Gene: PRKAR1A, OMIM*600993, STK11 Cowden-Syndrom, Gene: AKT1, + 3 more
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DAkkS D-ML-21458-02-01 Mainz, DE
angeborener Chromosomensatz Silver-Russell-Syndrom: H19, KCNQ1OT1 MEST Deletion; Angelman-Syndrom + 3 more
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DAkkS D-ML-21458-01-01 Mainz, DE
angeborener Chromosomensatz Molekularzytogenetische Analyse CDKN2C(1p32.3 )/CKS1B ( 1q21-22) Amplifikation, Deletion, Rearrangement, TCF3(11q23)/PBX(11q23)(19p13.3) + 3 more
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DAkkS D-ML-13351-01-00 Koblenz, DE
Faktor XIII Antigen Adrenalin/Noradrenalin/ Dopamin Amiodaron/ Amiodaron, Desethylamiodaron + 3 more
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DAkkS D-ML-22817-01-01 Würzburg, DE
3-Methoxytyramin Amisulprid Amitriptylin, Nortriptylin Aripiprazol, Dehydroaripiprazol Bupropion, 10-OH-Bupropion + 3 more
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MVZ genetikum

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DAkkS D-ML-22061-01-01 Neu-Ulm, DE
*) 1 bar; 2 bar Spinobulbäre Muskelatrophie (Typ Kennedy) AZFa-c Azoospermiefaktor + 3 more
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DAkkS D-ML-18244-01-01 Altenburg, DE
Thrombozytenfunktion Thrombozytenfunktionstest Automatisches Blutbild automatische Leukozytendifferenzierung + 3 more
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DAkkS D-K-19647-01-00 Köln, DE
Magnetische Feldstärke Referenzmagnetsystem Magnetische Flussdichte dichtemessgerät Magnetisches Moment + 3 more
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Mahr

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DAkkS D-K-15074-01-01 Göttingen, DE
eingängige zylindrische Einstellringe * 10 mm Railway braking — adhesion under braking Rundheitsabweichung Prüfstifte * 0,14 mm + 3 more
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UKAS 28563 Driffield, GB
ISO 6579-1 ISO 21528-2 ISO 16649-2 TP/007 based on BS ISO ISO 11290-2 + 3 more
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DAkkS D-PL-11143-01-01 Weimar, DE
DIN EN 62196-1: 2015 DIN EN 196-3 DIN EN 196-6 DIN EN 196-7 DIN EN 196-8 + 3 more
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DAkkS D-K-11143-01-01 Weimar, DE
Kraft (WPM) * Kalibrierung der Prüfkraftmesseinrichtung Machinery vibration — industrial machine 0,01 N + 3 more
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DAkkS D-PL-11267-01-00 Braunschweig, DE
DIN EN 932-1 DIN EN 932-2 DIN EN 933-1 DIN EN 933-2 DIN EN 933-4 + 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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