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
1,817 Accredited labs
19 Countries

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PHOENIX TESTLAB

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DAkkS D-PL-17186-01-01 Blomberg, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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PID test & engineering

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DAkkS D-PL-21530-01-01 Sand am Main, DE
DIN EN IEC 60068-2-38 DIN EN IEC 60068-2-11 BS ISO 9227:2022 DIN EN 60068-2-14 IEC 60068-2-60 + 3 more
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PLANCO-TEC

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DAkkS D-PL-22217-01-00 Neu-Eichenberg, DE
DIN EN 12457-4 DIN EN 12579 DIN EN 13040 DIN EN ISO 10523 (C 5) DIN EN 12880 (S 2a) + 3 more
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PLUS LAB SRL

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ACCREDIA 01882 Orio al Serio, IT
DIN EN 60068-2-57 DIN EN 13230-4 DIN EN 61373 CEI EN IEC 60068-3-3 IEC 60068-3-3 + 3 more
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PMK - GmbH (Prüfen+Messen+Kalibrieren)

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DAkkS D-K-17519-01-01 Niestetal, DE
Parallelendmaße aus 0,5 mm Einstellringe aus Stahl * nach DIN EN ISO 3650:1999 Keramik * DIN EN ISO 3650:1999 + 3 more
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PMZ Prüf- und Messtechnik Zentrum Kassel

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DAkkS D-PL-11296-01-01 Kassel, DE
DIN EN 16019 DIN 50100 DIN EN 61373 IEC 61373 DIN EN 60310 + 3 more
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PRELEVAIR

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COFRAC 1-5948 Cognac, FR
NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de NF X 43-050 ISO 16000-7
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PRO' AIR

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COFRAC 1-5789 Montois-La-Montagne, FR
NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de NF X 43-050 ISO 16000-7
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PROCESS INSTRUMENTS (PI)

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COFRAC 1-5987 263, 3Eme Etage Zone Industrielle De Mohammedia | - Mohammedia | Maroc, MA
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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PRODUCTOS AGROVIN

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ENAC LE2092 Alcázar de San Juan, ES
UNE-EN ISO/IEC 17025
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PROMESS Gesellschaft für Montage- und Prüfsysteme

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DAkkS D-K-21209-02-00 Berlin, DE
Railway brake — magnetic track brakes (U − Kraft (WPM) nur Vor-Ort-Kalibrierungen Kraft (WPM) 0,1 kN Vibration measuring instruments — test m + 3 more
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PRS LAB srl Unipersonale - Sede di Faloppio

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ACCREDIA 00983 Faloppio, IT
IEC 60730-1: 2013 DIN EN 60730-2-8 IEC 61000-6-1 DIN EN 50131-2-3 DIN EN 60730-2-9 + 3 more
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PTS - Institut für Fasern & Papier g

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DAkkS D-PL-23019-01-01 Heidenau, DE
rs11887534 HABP2-Gen (c.1601G>A) rs7080536 IEC 61924-2 DIN EN ISO 1974 DIN 53121 + 3 more
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PTW - Freiburg Physikalisch-Technische Werkstätten Pychlau

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DAkkS D-K-15059-01-00 Freiburg im Breisgau, DE
Dosimetrie Luftkerma 5 mGy 2 mGy 100 µGy + 3 more
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Pachmann

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DAkkS D-ML-13345-01-00 Bayreuth, DE
EpCAM-positive Zellen (CD326) EpCAM-positive Tumorsphären EpCAM-positive Zellen human epidermal growth receptor 2 (Her-2/neu) + 2 more
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Paragon Scientific

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UKAS 0649 Prenton, GB
Refractive Index Capillary Viscometer Calibration 2.92 mm systems (continued) Liquids Density in Air at 20 + 3 more
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Particle Technology

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UKAS 4109 Hatton, GB
MIL-STD 810D, Method 510.2 MIL-STD 810E, Method 510.3 MIL-STD 810G:2008 Method 501.5 MIL-STD 810F, Method 510.4 MIL-STD-810H, Method 510.7 + 3 more
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Partnerschaftspraxis für Laboratoriumsmedizin und Mikrobiologie

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DAkkS D-ML-13116-01-01 Hameln, DE
Hämoglobin Selen Lithium Zink Eisen, Kupfer + 3 more
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Pattinson Scientific Services

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UKAS 0307 Newcastle-upon-Tyne, GB
(HSG 264, 2012)
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Pattinson Scientific Services

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UKAS 0635 Newcastle-upon-Tyne, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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Pektron Group

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UKAS 23412 Derby, GB
DIN EN 60068-2-30 DIN EN 60068-2-78 BS ISO 16750-4: 2010 Clause 5.1.1 DIN EN 60068-2-14 BS EN 60068-2-38 2009 + 3 more
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Pennington Choices

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UKAS 0179 Bromley, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) Executive guides HSG 264 (2012)
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Perry Analytical

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UKAS 0598 Fareham, GB
(HSG 248) – 2021 (PCM) based on HSG 248 Manual based on HSG 248
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Perschmann Calibration

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DAkkS D-K-15089-01-01 Braunschweig, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 > 100 mm Sonderquerschnitt (rund Parallelendmaße * > 100 mm + 3 more
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Peutz Consult

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DAkkS D-PL-20140-01-00 Düsseldorf, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3
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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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