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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DAkkS D-K-12048-01-00 Driedorf, DE
Koordinatenmessgeräte geräte mit einem Chorus, Help-PJM von DEA Hexagon Metrology S.p.A., Turin, I Associates EMS Products, ≤ 1500 mm + 3 more
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Quality Consultants (NI)

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UKAS 2705 Dundonald, GB
(HSG 248) – 2021 (PCM) based on HSG 248 QSOP 03 based on HSG 248
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Questmed

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DAkkS D-PL-18753-02-00 Kleinmachnow, DE
ISO 22679 ISO 7207-1 ISO 14243-1 ISO 14243-2 ISO 14243-3 + 3 more
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R-TECH Services

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UKAS 2594 Margam, GB
ÖNORM EN ISO 17637 BS EN ISO 15614-1:2017 ASTM A 370 DIN EN 10080 BS EN ISO 9015-1:2011 + 3 more
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REACTIVA LABORATORIO

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ENAC LE1458 Níjar, ES
UNE-EN ISO 9308-1 UNE-EN ISO 7899-2 UNE-EN 1365-1 UNE-EN ISO 6222 UNE-EN 16618 + 1 more
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RINA CONSULTING - Centro Sviluppo Materiali SpA

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ACCREDIA 01411 Roma, IT
DIN EN ISO 6508-1 ASTM E1019-24 ISO 13320 ISO 6892-2 (BS EN ISO 6892-1: 2019) + 3 more
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RIO

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DAkkS D-K-17376-01-00 Siegen, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 > 100 mm > 500 mm > 550 mm + 3 more
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RMA Mess- und Regeltechnik

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DAkkS D-K-20908-01-00 Rheinau, DE
Durchfluss von Gasen Volumendurchfluss 50 m³/h Railway brakes — brake performance (UIC (Hochdruck Erdgas 5 bis 51 bar) + 1 more
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ROTA YOKOGAWA

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DAkkS D-K-17720-01-00 Wehr, DE
Masse m strömender − Durchfluss von Flüssigkeiten Durchfluss von 1) In den CMC sind die erweiterten Messu Massedurchfluss dm / dt + 3 more
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ROVIRA EQUIPOS

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ENAC LC10.178 Madrid, ES
CEM Ed
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RSK Environment

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UKAS 23462 Coventry, GB
Analysts’ Guide (HSG 248) (PCM) based on HSG 248
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RST Rail System Testing

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DAkkS D-PL-11012-01-05 Hennigsdorf, DE
ISO 16750-5 ISO 20653 DIN EN ISO 2812-1 DIN EN ISO 2813 DIN EN ISO 6270-2 + 3 more
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Radiomotive

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ACCREDIA 02089 Fino Mornasco, IT
ETSI EN 301 489-6 DIN EN 61326-2-6 IEC 61326-3-1 IEC 61326-3-2 IEC 60669-2-5 + 3 more
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Ramcare

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UKAS 0505 Lancing, GB
DC CURRENT DC VOLTAGE thermometer Pt100 ROTATIONAL SPEED Generate + 3 more
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Regierungspräsidium Kassel Hessische Geräteuntersuchungsstelle

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DAkkS D-PL-19353-02-02 Kassel, DE
IEC 60335-1: 2010 VDE 0700-1 DIN EN 60335-2-2 DIN EN 60335-2-3: 2002 DIN EN 60335-2-4 + 3 more
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Renishaw

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UKAS 4312 Wotton-under-Edge, GB
volume (CMM’s)
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Resonate Testing

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UKAS 9373 Newry, GB
IEC EN 60068-2-6:2007 IEC EN 60068-2-50:2000 IEC EN 60068-2-51:2000 IEC EN 60068-2-53:2010 ISO 16750-3 + 3 more
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Rhein-Ruhr Feuerstättenprüfstelle

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DAkkS D-PL-17727-01-00 Oberhausen, DE
DIN EN 1860-1 DIN EN 12815 DIN EN 13229 DIN EN 13240 DIN EN 14059 + 3 more
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Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau (RPTU) Materialprüfamt

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DAkkS D-PL-11051-01-01 Kaiserslautern, DE
DIN EN 1926 DIN EN 12372 DIN EN 13161 DIN EN 13364 DIN EN 1015-11 + 3 more
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Rhopoint Metrology

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UKAS 0720 Birmingham, GB
(Steel and tungsten carbide) LENGTH (cont’d) pneumatic tyres (See Note 1) LENGTH (cont.) Plain plug gauges (taper) + 3 more
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Rhymney Test Equipment

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UKAS 22985 Heol Klockner, GB
DIN EN 60068-2-30 ASTM B117-19 DIN EN 60068-2-78 DIN EN IEC 60068-2-52 DIN EN IEC 60068-2-11 + 3 more
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Richard L Thomas Associates

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UKAS 0245 Denton, GB
(HSG 264, 2012) HSG 264 (2012) and Appx. 3 of HSG 227 (2004)) Appendix 5 of HSG 227 (2004))
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Rivencore Global Solutions

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UKAS 28772 Poole, GB
DIN EN 60068-2-30 DIN EN 60529 IEC 60945 EN IEC 62368-1 DIN EN 60068-2-14 + 2 more
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Riverside Environmental Services

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UKAS 4087 Hextable, GB
(HSG 248) – 2021 OP11 based on HSG 248 (PCM) based on HSG 248 OP04 based on HSG 248
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Riverside Environmental Services

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UKAS 0296 Hextable, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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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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