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 1,551–1,575 of 1,817 labs

DAkkS D-K-19403-01-00 Grävenwiesbach, DE
Messschieber für 0 mm Außen-, Innen- und Bügelmessschrauben 0 mm Messuhren mit Feinzeiger + 3 more
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UNIMETRIK

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ENAC LC10.082 Legutiano, ES
CEM DI-007 CEM DI-021 CEM DI-004 CEM DI-018 CEM DI-002 + 3 more
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ENAC LE2485 Girona, ES
UNE-EN 25663 UNE-EN 872 UNE-EN ISO 6878 UNE EN 27888 UNE-EN ISO 10523 + 3 more
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URIKER

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ENAC LE775 Zamudio, ES
UNE 77061 SM 4500-NO-3 E UNE-EN ISO 7027-1 ISO 15923-1 UNE-EN ISO 7393-2 + 3 more
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UTAC UK

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UKAS 2498 Millbrook, GB
DIN EN 60068-2-64 DIN EN 60068-2-78 IEC 68-2-56:1988 DIN EN IEC 60068-2-5 DIN EN-60068-2-6 + 2 more
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ENAC LC10.024 Zamudio, ES
UNE-EN ISO 16859-2 (Método indirecto) UNE-EN ISO 6507-2 ASTM E 92 UNE-EN ISO 6508-2 (Método indirecto) UNE-EN ISO 6506-2 (Método indirecto) + 3 more
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UKAS 2200 Ratcliffe-on-Soar, GB
DIN EN 13284-1 BS EN ISO 23210:2009 requirements of BS EN 14181:2014 IEC 60519-11 requirements of BS EN + 3 more
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UKAS 0125 Blaby, GB
Chronic progressive external LENGTH Micrometer heads Dial gauges and dial test Depth + 3 more
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UKAS 1660 Salford, GB
DIN EN 12667 ISO 8301 DIN EN 12939 DIN EN 12664 DIN EN ISO 13163 + 3 more
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UKAS 0801 The Crescent, GB
Pistonphones Microphones LS2/WS2 microphones based: Reverberation Time
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DAkkS D-ML-13082-01-00 Regensburg, DE
Achromatopsie (Panel) (ATF6, CNGA3, CNGB Albinismus (OCA2) Alport-Syndrom (Panel) (COL4A1, COL4A3, Amyloidose (Panel) (APOA1, APOA2, APP, B Arrhythmien (Panel) (ACTC1, ACTN2, BAG3, + 3 more
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DAkkS D-PL-11027-01-01 Stuttgart, DE
DIN EN 442-2 DIN EN 16430-1 DIN EN 16430-2 DIN EN 16430-3 DIN 4703-3 + 3 more
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DAkkS D-K-11027-01-02 Stuttgart, DE
Sound power — engineering method using a Sound power — survey method (ISO 3746) Sound power — in-situ using reference so Sound intensity — scanning method (ISO 9 Sound intensity — scanning method part 2 + 3 more
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DAkkS D-PL-11027-04-01 Stuttgart, DE
DIN EN ISO 4590 DIN EN ISO 9053-1 DIN EN ISO 12571 DIN EN ISO 12572 DIN EN ISO 15148 + 3 more
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DAkkS D-ML-13154-02-00 Aachen, DE
Syndrom/Silver-Russell-Syndrom) SMN1 (SMA) FMR1-Gen (fraX, POF, FXTAS) Charcot-Marie-Tooth-Erkrankung Cardiolipin (CMT) + 3 more
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DAkkS D-ML-13154-03-00 Aachen, DE
Adrenalin Dopamin 5-Hydroxyindolessigsäure Homovanillinsäure Noradrenalin + 3 more
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DAkkS D-ML-13154-02-01 Aachen, DE
(Long Read): SNV, CNV, Repeats FMR1-Gen (fraX, POF, FXTAS) Charcot-Marie-Tooth-Erkrankung Cardiolipin (CMT) GARS1, GDAP1, GJB1, HSPB1, IGHMBP2, LITA + 3 more
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DAkkS D-ML-13154-01-01 Aachen, DE
Leukozyten (WBC) Erythrozyten (RBC) Hämatokrit (HCT) MCV Thrombozyten + 3 more
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DAkkS D-ML-13125-01-00 Bonn, DE
Thrombozytenaggregation Agonisten: ADP, ADP-PGE1, heparininduzierter Antikörper Heparin induzierter Thrombozytopenie Typ II (HIT II) + 3 more
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DAkkS D-ML-13125-03-01 Bonn, DE
Bannayan-Ruvalcaba-Riley-Syndrom (institutseigene Erweiterung des Illumina TruSight Cancer Panel): PTEN, AKT1, PIK3CA, SEC23B Syndrom (institutseigene + 3 more
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DAkkS D-ML-13125-02-00 Bonn, DE
Amiodaron, Desethylamiodaron HbA1c Vitamin A, Vitamin E Vitamin B1/B6 Vitamin B2 + 3 more
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DAkkS D-ML-19730-02-00 Dresden, DE
angeborener Chromosomensatz Nummerische Veränderungen Chromosomen 13, 18, 21, X und ldentifizierung kleinster chromosomaler/numerischer + 3 more
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DAkkS D-ML-19730-07-00 Dresden, DE
Brucella, Antikörper Candida, Antikörper Entamoeba histolytica, Antikörper Leptospiren, Antikörper Schistosoma, Antikörper + 3 more
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DAkkS D-ML-19730-01-00 Dresden, DE
Multiplate-Analyse (TRAP, ADP) Thrombozytenaggregation Born) Organische Säuren (Profil) Metanephrin, Normetanephrin + 3 more
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DAkkS D-ML-19730-06-00 Dresden, DE
Blutbild, Differentialblutbild Differentialblutbild Fragmentozyten Knochenmarkzytologie Liquor- und Ergusszytologie + 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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