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

Showing 1,376–1,400 of 1,591 labs

DAkkS D-ML-18383-03-00 Essen, DE
Candida dubliensis -Ag Cardiolipin AK Clostridioides difficile AG Cryptococcus neoformans Echinococcus-Ak + 3 more
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Einordnung und Charakterisierung Minimale Resterkrankung myeloischen Leukämien monoklonale Gammopathien PNH-Diagnostik + 3 more
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Gendosisanalyse Gendosisanalyse (BE3A, SHOX ) Genet. Veränderung bei Tumorerkrankung: Analyse auf Verlust eines Chromosoms 3 + 3 more
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membranständiger Antigene CD4, CD8, CD14, CD16, CD19, CD45, CD56) Tuberkulose ELISpot CMV ELISpot Lymphozytentransformationstest + 3 more
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Candida dubliensis -Ag Cardiolipin AK Clostridioides difficile AG Cryptococcus neoformans Echinococcus-Ak + 3 more
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Glykosyliertes Hämoglobin Basophile Granulozyten Eosinophile Granulozyten Erythräzyten Leukozyten + 3 more
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Gendosisanalyse Gendosisanalyse (UBE3A, SHOX Genet. Veränderung bei Tumorerkrankung: Analyse auf Verlust eines Chromosoms 3 + 3 more
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Glykosyliertes Hämoglobin Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Leukozyten + 3 more
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DAkkS D-ML-13102-08-01 Frankfurt, DE
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DAkkS D-ML-13102-03-00 Frankfurt am Main, DE
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DAkkS D-ML-13102-04-00 Frankfurt am Main, DE
D-Dimere Freies Protein-S Antigen Protein S Antigen frei vWV:Ag Hemmkörper + 3 more
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Basophile Basophile absolut Eosinophile Eosinophile absolut Erythrozyten + 3 more
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DAkkS D-ML-13102-06-00 Frankfurt am Main, DE
Charakterisierung von akuten Akuten Leukämien B-Zellzahl (Immunstatus manuelles Differentialblutbild Zellzahlbestimmung + 3 more
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DAkkS D-ML-13134-02-01 Freiburg, DE
Cardiolipin-Antikörper Leptospiren-Antikörper Shigellen (O-Antigene) Treponema pallidum-Antikörper Borrelien IgG + IgM + 3 more
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DAkkS D-ML-13134-03-01 Freiburg, DE
anti-CMV IgG anti-CMV IgM CMV IgG Avidität Chikungunya Virus IgG Chikungunya Virus IgM + 3 more
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DAkkS D-ML-13134-05-00 Freiburg, DE
HLA-Antikörpertestung (Detektion) HLA-Antikörpertestung (Spezifizierung Klasse I und (Spezifizierung komplementbindender Antikörper + 3 more
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DAkkS D-ML-13134-10-01 Freiburg, DE
NGS-Panel-Analyse (SNVs, Indels CNVs), Gene: WDR73, WNT4, WNT5A, XRCC4, YY1, ZMPSTE24 PYCR1, RNF213, ROBO4, SETD5, SLC2A10, SL GPC3, HERC1, HIST1H1E, NFIX, OFD1, RNF13 + 3 more
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DAkkS D-ML-13134-06-01 Freiburg, DE
RPL27, RPL3, RPL31, RPL34, RPL35, RPL35A Diamond-Blackfan-Anämie ; DBA NOP10, PARN, RPA1, RTEL1, SAMD9, SAMD9L, Dyskeratosis congenita; DC Panel NOP10, PARN, POT1, RPA1, RTEL1, SAMD9, S + 3 more
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DAkkS D-ML-13134-07-00 Freiburg, DE
Differenzierung peripheres Erstellung eines Differentialblutbilds Differenzierung Knochenmark Pappenheim-Färbung Peroxidase-Reaktion + 3 more
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DAkkS D-ML-13134-12-00 Freiburg, DE
HLA-Antikörpertestung (Detektion) HLA-Antikörpertestung (Spezifizierung Klasse I und (Spezifizierung komplementbindender Antikörper + 3 more
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DAkkS D-ML-13304-04-01 Marburg, DE
Anaerobier-Resistenz Bakterien-Resistenz Hefen-Resistenz Carbapenemasenachweis Cryptosporidien, Giardia + 3 more
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DAkkS D-ML-13304-03-00 Gießen, DE
Thrombozyten Zellzählung und -differenzierung Calcium, ionisiert Natriumchlorid Glukose + 3 more
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DAkkS D-ML-13304-07-01 Gießen, DE
DPYD-Genotypisierung vor 5 FU Therapie, SNV Polyposissyndrome (APC, BMPR1A, MUTYH, N (Custom made by TWIST), SNV Hereditärer Darmkrebs inklusive + 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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