ISO 7626-2

Experimental Modal Analysis – Single-Point Excitation

ISO 7626-2 describes procedures for experimental modal analysis using single-point, single-axis excitation to characterise the dynamic properties and natural frequencies of structures and machines. This test method captures frequency response functions and mode shapes essential for structural design validation, vibration control, and fault diagnosis. Aerospace, automotive, civil engineering, and machinery manufacturers use modal analysis to refine designs and understand dynamic behaviour under operational loads. Accreditation ensures rigorous application of measurement protocols and data quality standards supporting engineering confidence in structural performance predictions.

What it measures

  • Frequency response functions (FRF) over specified frequency range
  • Natural frequencies (resonances) and modal damping ratios
  • Mode shapes and structural deflection patterns
  • Coherence and measurement quality indicators
  • Dynamic stiffness and impedance characteristics
🇩🇪 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 7626-5 🇬🇧 BS EN ISO 7626-5 🇫🇷 NF EN ISO 7626-5 🇮🇹 UNI EN ISO 7626-5 🇪🇸 UNE EN ISO 7626-5 🇳🇱 NEN EN ISO 7626-5
1,591 Accredited labs
17 Countries

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DAkkS D-PL-11321-12-01 Hannover, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 12184 ISO 7176-1 ISO 7176-10 + 3 more
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DAkkS D-PL-11321-14-01 München, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-2-21 IEC 60601-2-21 IEC 60601-2-22 + 3 more
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DAkkS D-PL-11321-16-02 Garching, DE
IEC 60068-2-6 DIN 73411-2 ISO 6803 IEC 60068-2-1 IEC 60068-2-2 + 3 more
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DAkkS D-PL-11190-01-01 Halle, DE
ISO 2631-4 DIN EN 15839 DIN EN 15746-1 DIN EN 15746-2 DIN EN 15746-3 + 3 more
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DAkkS D-PL-11190-08-01 München, DE
IEC 61508-1 EN 61508-1: IEC 61508-2 IEC 61508-3 DIN EN 61508-3 + 3 more
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DAkkS D-PL-14137-04-00 Frankfurt, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN 45680 Beiblatt 1 DIN 45691
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DAkkS D-PL-14137-09-02 Frankfurt am Main, DE
DIN EN ISO 17640 DIN EN ISO 13588 DIN EN ISO 20601 DIN EN ISO 16828 DIN EN ISO 10863 + 3 more
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DAkkS D-K-16047-01-01 Arnstadt, DE
Widerstands- -25 °C Railway braking — urban guided transport –25 °C Railway vehicle body structural requirem Thermoelementsensor -25 °C + 3 more
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DAkkS D-PL-21380-02-01 Höchstadt a. d. Aisch, DE
DIN EN 60068-1 VDE 0468-1 VDE 0468-2-1 VDE 0468-2-2 VDE 0468-2-6 + 3 more
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UKAS 4085 Stafford, GB
DIN EN 60255-22-2 IEC 61000-4-4: 2012 IEC 60255-26 IEC 60255-22-4 IEC 61000-4-5: 2005 + 3 more
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UKAS 1645 London, GB
FNED142 BS EN ISO 11816- FNES67 (P1) based on BS EN ISO FNES16 (F13) based on ISO 6579-1:2017+A1 FNES16 (F13) based on BS EN ISO 6579-1 + 3 more
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UKAS 5772 Basingstoke, GB
DIN EN 12209 DIN EN 1155 DIN EN 12179 DIN EN 1935 DIN EN 1670 + 3 more
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DAkkS D-PL-19381-01-02 Neu-Isenburg, DE
IEC 61851-1: 2010 IEC 61851-23 IEC 62109-1 IEC 62109-2 IEC 61010 + 3 more
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DAkkS D-PL-11095-02-00 Neu-Ulm, DE
DIN EN ISO 10993-5 DIN EN ISO 17405 DIN EN ISO 10993-1 ISO 10993-23 DIN EN ISO 10993-18 + 3 more
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ACCREDIA 00999 Carugate, IT
DIN EN 60068-2-30 IEC 61000-6-1 AS/NZS CISPR 22:2006 IEC 61000-6-2: 2005 ETSI EN 303 446-2 + 3 more
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UL TS

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RvA L662 'S-Gravenhage, NL
IEC 18045 IEC 15408-1
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UL VS

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UKAS 0224 Finchampstead, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) guides HSG 264 (2012) and ACoP L8 and BS 8580-1:2019
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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

Active
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 LE178 Madrid, ES
UNE-EN 81-1 UNE-EN 81-2 UNE-EN 81-50 UNE-EN 81-20 UNE-EN 60947-4-1 + 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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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 1660 Salford, GB
DIN EN 12667 ISO 8301 DIN EN 12939 DIN EN 12664 DIN EN ISO 13163 + 3 more
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Industries

Aerospace and defence engineering Automotive design and validation Civil engineering and bridge design Heavy machinery and equipment development Vibration and noise control consulting

Related Standards

  • ISO 7626-1 Vibration and shock—Experimental determination of mechanical mobility—Part 1: Basic definitions and transducers
  • ISO 7626-5 Vibration and shock—Experimental determination of mechanical mobility—Part 5: Coupling of mechanical mobility measurement instrumentation
  • ISO 6954 Mechanical vibration and shock—Acceleration transducers—Specifications for laboratory standard instruments

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