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 576–600 of 1,817 labs

DAkkS D-ML-13133-01-01 Weißwasser, DE
Abetalipoproteinämie (MTTP) Achondroplasie (FGFR3) Acoeruloplasminämie/Hypocoerulo plasminämie (CP) ACTH-unabhängige makronoduläre + 3 more
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ACCREDIA 01523 Piossasco, IT
IEC 60068-2-2 DIN EN 13744 IEC 60512-15-1 DIN EN 60068-2-30 DIN EN ISO 11203 + 3 more
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UKAS 1780 Wickford, GB
M002based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 0166 Cannock, GB
(HSG 264, 2012) on BS 8580-1:2019 and ACoP L8
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RvA I305 Tilburg, NL
#EN ISO 5164:14 # EN 116-97 #ISO 12185 NEN 4400-2 # ISO 13736 + 3 more
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UKAS 0183 Norwich, GB
Frequenc 220 mV range FREQUENCY 10 Hz to 100 kHz difference from 10 % to 100 % of the sta 6105A control 0° to 360° + 3 more
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DAkkS D-PL-11164-01-00 Aschheim, DE
DIN 32753-1
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ACCREDIA 00745 Corato, IT
BS EN 15662 DIN EN ISO 10304-1 DIN EN ISO 6888-2 ISO 11731 ISO 4832 + 3 more
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DAkkS D-K-15088-01-00 Köln, DE
flexiblen Akkreditierungsbereich. Beschleunigung * 10 m/s Beschleunigungsaufnehmer Beschleunigungsaufnehmer 10 m/s digital (DTI) + 3 more
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UKAS 1497 Carrickfergus, GB
ISO Mark Casting (TS5527)
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DAkkS D-PL-14116-01-00 Gräfelfing, DE
DIN EN ISO 8497 ISO 8301 ISO 8302 DIN EN 12664 DIN EN 12667 + 3 more
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DAkkS D-ML-21105-01-01 Penzberg, DE
(somatische genetische ACVR1B, AKT1, AKT2, AKT3, ALOX12B, AMER1 GATA3, GATA4, GATA6, GID4, GNA11,GNA13, CHEK2, CHIC2, CHN1, CIC, CIITA IRF8, IRS2, ITK, JAK1, JAK2, JAK3, JARID + 3 more
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UKAS 9875 Benfleet, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 2671 Castle Donington, GB
(HSG 248) – 2021 (PCM) based on HSG 248 DOC/002 based on HSG 248
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DAkkS D-PL-21039-04-04 Erlangen, DE
DIN EN ISO 10304-1 DIN EN ISO 11885 DIN EN ISO 15350 DIN EN ISO 15351 DIN EN ISO 17294-2 + 3 more
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DAkkS D-K-21039-01-00 Erlangen, DE
- Gleichspannung Messgeräte 0,33 V bis < 3,3 V 330 V Quellen > 0,1 V + 3 more
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UKAS 4155 Sunderland, GB
5 of HSG 227 (2004) (HSG 264, 2012)
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DAkkS D-K-17452-01-00 Schalkau, DE
Kraft (WPM) 30 N Vibration measuring instruments — test m maschinen nach DIN Kraft * 10 N Acoustics — tonality assessment (DIN 456 + 3 more
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DAkkS D-PL-11140-16-00 Pfinztal-Berghausen, DE
DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 DIN EN 60068-2-14 DIN EN 60068-2-18 DIN EN 60068-2-30 + 3 more
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DAkkS D-PL-11140-15-00 Dresden, DE
DIN EN IEC 60068-2-13 DIN EN 1159-3 DIN EN ISO 11357-2 DIN EN ISO 11357-3 DIN EN ISO 11357-4 + 3 more
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DAkkS D-PL-11140-33-00 Freiburg, DE
IEC 60891 IEC 60904-1 IEC TS 60904-1-2 IEC 60904-8 IEC 61215 + 3 more
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DAkkS D-PL-11140-11-01 Stuttgart, DE
DIN EN ISO 717-1 DIN EN ISO 717-2 DIN EN ISO 10140-1 DIN EN ISO 10140-2 DIN EN ISO 10140-3 + 3 more
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DAkkS D-PL-11140-14-00 Braunschweig, DE
DIN ISO 16000-3 DIN EN ISO 12460-3 DIN EN ISO 12460-4 DIN EN ISO 12460-5 100 HV 120 + 3 more
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DAkkS D-K-11140-02-00 Freiburg, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Kurzschlussstrom Solarmodule 16 mA Gleichstrom- und Nieder- 10 mV + 3 more
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DAkkS D-ML-13455-01-00 Dubai, AE
HbF HbA1c HbA2 HBB/HBD Anti-HBs + 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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