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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Ostthüringische Materialprüfgesellschaft für Textil und Kunststoffe mbH Rudolstadt

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DAkkS D-PL-11118-01-01 Rudolstadt, DE
DIN EN 1264-5 DIN EN 13647 DIN EN 71-10 DIN EN 50642 DIN EN ISO 14184-2 + 3 more
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P&P LMC Srl

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ACCREDIA 00403 Seriate, IT
DIN EN ISO 11885 DIN EN ISO 15587-2 DIN EN ISO 10523 DIN EN 60068-2-57 IEC 62271-207 + 3 more
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PA Group (UK)

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UKAS 4265 Dartford, GB
(HSG 264, 2012)
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PAConsult

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DAkkS D-PL-11130-01-02 Hamburg, DE
DIN 55440-1 DIN EN 22248 DIN EN 868-5 DIN EN 22876 DIN EN ISO 2234 + 3 more
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Calibration & Repair

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DAkkS D-K-19664-01-00 Hückelhoven, DE
Beschleunigung zu 25 mV bis 1 V (Sekundär) Schwingungsaufnehmer Schwingungsmessgeräte 0,1 m/s + 3 more
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PEHLA GmbH PEHLA Prüffeld Berlin Siemensstadt

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DAkkS D-PL-12072-08-01 Berlin, DE
IEC 62271-1: 2017-07 IEC 62271-100: 2021 IEC 62271-101 IEC 62271-110 IEC 62271-111 + 3 more
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PEHLA GmbH PEHLA-Prüffeld Frankfurt/Main

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DAkkS D-PL-12072-01-00 Frankfurt am Main, DE
DIN IEC 60060-1 IEC 60068-2-1 DIN EN IEC 60068-2-11 IEC 60068-2-14 IEC 60068-2-17 + 3 more
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PEHLA GmbH PEHLA-Prüffeld Ratingen

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DAkkS D-PL-12072-06-01 Ratingen, DE
DIN EN 61869-1 IEC 61869-1 DIN EN 61869-2 VDE 0414-9-2 IEC 61869-2 + 3 more
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PETROLAB GmbH Laboratorium für Mineralöl- und Umweltanalytik

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DAkkS D-PL-14361-01-01 Speyer, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 ASTM D 86 DIN EN 13016-1 + 3 more
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PHH Environmental (UK)

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UKAS 0384 Cardiff, GB
HSG 227 (2004)) (HSG 264, 2012) HSG 264 (2012) and Appx. 3 of (HSG 248) – 2021 (PCM) based on HSG 248
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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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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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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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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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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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