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
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TERMOCAL

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ENAC LC10.063 Valladolid, ES
3,5 kPa  P  70 kPa 70 kPa < P  700 kP 3,5 kPa  P  2,0 MPa 2,0 MPa < P  7,0 3,5 kPa  P  20 kPa 20 kPa < P  70 kPa 100 kPa  P  6,1 MPa 6,1 MPa < P  100 100 kPa  P 70 MPa + 3 more
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LABORATORIO DE METROLOGÍA Y METROTECNIA DE LA E.T.S.I. INDUSTRIALES DE LA U.P.M.

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ENAC LC10.002 Madrid, ES
nach DIN EN ISO 3650:1999 EURAMET CG-6 ISO 5436-1 CEM DI-013 CEM DI-012 + 3 more
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LARUEX

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ENAC LE1260 Cáceres, ES
UNE-EN ISO 10704 UNE-EN ISO 10703 EPA 903.0 EPA 909.0 ISO 13161 + 3 more
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LABORATORIO OFICIAL DE METROLOXÍA DE GALICIA - LOMG

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ENAC LC10.052 San Cibrao das Viñas, ES
CEM DI-025 CEM DI-018 UNE-EN ISO 21920-3 CEM DI-009 CEM DI-003 + 3 more
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LABORATORIO QUÍMICO MICROBIOLÓGICO

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ENAC LE1340 San Ginés, ES
UNE-EN ISO 7887 UNE-EN ISO 17852 UNE-EN ISO 8467 ISO 7150-1 SM 2510 B + 3 more
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LABORATORIOS EYCO

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ENAC LC10.195 Paterna, ES
ISO 5-3 ISO 2813 UNE-EN ISO 9342-1 UNE-EN ISO 8598-1 ISO 3664 + 3 more
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LABORATORIOS OMEGA

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ENAC LE1116 Fuenlabrada, ES
UNE 10523 UNE 27888 UNE 7027-1 ISO 23695 UNE-EN ISO 9308-1 + 3 more
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LABS & TECHNOLOGICAL SERVICES AGQ

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ENAC LE1322 Burguillos, ES
UNE-EN 7027-1 UNE-EN ISO 10523 SM 2520 B UNE EN 27888 UNE-EN 872 + 3 more
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LAYAKK SEGURIDAD INFORMÁTICA

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ENAC LE2494 Paterna, ES
ISO/IEC 18045 ISO/IEC 15408 UNE 320001
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LEAR CORPORATION ENGINEERING SPAIN, S.L. (Unipersonal)

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ENAC LE2133 Valls, ES
ISO 11452-4: 2020 IEC 60068-2-14 ISO 7637-3: 2016 IEC/CISPR 25 ISO 10605 + 3 more
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LGAI TECHNOLOGICAL CENTER, S.A. (APPLUS+)

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ENAC LE894 Bellaterra, ES
UNE-EN 12015 UNE-EN 50065-1 UNE-EN IEC 61000-6-4 UNE-EN IEC 61000-6-3 UNE-EN 61000-6-3 + 3 more
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LINDE GAS ESPAÑA, S.A. (Unipersonal)

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ENAC LC10.040 Rubí, ES
10 · 10-6 mol/mol  C  20 · 10-6 mol/mo 10 · 10-6 mol/mol  C  5000 · 10-6 mol/ 1 · 10-6 mol/mol  C  10 · 10-6 mol/mol 1 · 10-6 mol/mol  C  5 · 10-6 mol/mol 10 · 10-6 mol/mol  C  100 · 10-6 mol/m + 3 more
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MAHLE Electronics, S.L. (Unipersonal)

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ENAC LE2488 Motilla del Palancar, ES
ISO 11452-4: 2020 IEC/CISPR 25 ISO 11452-8: 2015 ISO 11452-2: 2019 ISO 10605 + 3 more
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MCV

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ENAC LC10.124 Collbató, ES
0,005 l/min ≤ Q ≤ 50 l/min 0,5 m3/h≤ Q ≤ 2,8 m3/h 0,6 m3/h  Q  2,8 m3/h 20 m3/h  Q  30 m3/h 30 m3/h < Q  70 m3/h + 3 more
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MECHAUP

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ENAC LE2894 Martos, ES
UNE-EN IEC 60068-2-1 ISO 16750-4 UNE-EN IEC 60068-2-14 UNE-EN IEC 60068-2-2 UNE-EN IEC 60068-2-38 + 3 more
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METER UNDER TEST

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ENAC LC10.163 Badalona, ES
Rangos de caudal (m3/h): 1 m3/h ≤ Q < 25
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METROCAL CALIBRACIÓN

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ENAC LC10.236 San Ginés, ES
1 g 2 g 5 g 10 g 20 g 50 g 100 g 200 g 5 5 kg 10 kg 20 kg 100 kg 200 kg 500 kg 1000 kg 1 g 2 g 5 g 10 g 20 g 50 g 100 g 200 g 5 + 2 more
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NIPPON SANSO ESPAÑA, S.L. (Unipersonal)

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ENAC LC10.077 Madrid, ES
2 · 10–6 mol/mol  C  100 · 10–6 mol/mo 0,1 · 10–2 mol/mol < C  2,5 · 10–2 mol/ 1 · 10–6 mol/mol  C  100 · 10–6 mol/mo 5 · 10–6 mol/mol  C  20 · 10–6 mol/mol 0,15 · 10–2 mol/mol  C  20 · 10–2 mol/ + 3 more
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OCA GLOBAL

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ENAC LE2316 Pozuelo de Alarcón, ES
UNE-EN 14385 UNE-EN 15259 UNE-EN 13211 BS ISO 9096:2017 UNE 77216 + 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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QUANTUM INNOVATIVE, S.L. (CIMALab)

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ENAC LE2055 Nigrán, ES
UNE-EN 1789
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RAYMOND BIESOLD, S.L. (Unipersonal)

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ENAC LC10.264 Sant Martí Sarroca, ES
(2,2 ± 0,1) ⋅ 10-2 mol/mol (99,5 ± 0,5) (15 ± 5) ⋅ 10-6 mol/mol (100 ± 5) ⋅ 10-6 (7,5 ± 0,2) ⋅ 10-2 mol/mol (15 ± 0,5) ⋅
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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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RED ELÉCTRICA DE ESPAÑA, S.A. (Unipersonal)

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ENAC LC10.120 Tres Cantos, ES
5 mV ≤ U ≤ 10 V 10 V < U ≤ 1000 V 45 Hz ≤ f ≤ 60 Hz 10 mV ≤ U ≤ 10 V 10 V 100 µA ≤ I ≤ 400 mA 400 mA < I ≤ 10 A 10 300 mA ≤ I ≤ 15 A 45 Hz ≤ f ≤ 60 Hz 100 µA ≤ I ≤ 400 mA 40 + 2 more
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ROVIRA EQUIPOS

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ENAC LC10.178 Madrid, ES
CEM Ed
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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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