Scope
ISO 7626-5
Experimental Modal Analysis Using Impact Excitation
This test method characterises the dynamic properties of structures through experimental modal analysis using impact hammer excitation. The method measures natural frequencies, damping ratios, and mode shapes by striking the structure and recording the resulting vibration response. It is widely used in aerospace, automotive, civil engineering, and mechanical equipment development to validate structural designs and identify potential vibration issues. Accreditation ensures proper instrumentation calibration, correct measurement methodology, and reliable data interpretation for safety-critical applications.
What it measures
- Natural frequencies (modal frequencies)
- Damping ratios (modal damping)
- Mode shapes (displacement patterns)
- Frequency response functions (FRF)
- Coherence and data quality metrics
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DIN EN ISO 7626-1
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BS EN ISO 7626-1
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NF EN ISO 7626-1
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UNI EN ISO 7626-1
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UNE EN ISO 7626-1
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NEN EN ISO 7626-1
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DIN EN ISO 7626-2
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BS EN ISO 7626-2
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NF EN ISO 7626-2
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UNI EN ISO 7626-2
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UNE EN ISO 7626-2
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NEN EN ISO 7626-2
1,817
Accredited labs
19
Countries
Showing 1,226–1,250 of 1,817 labs
DIN EN 1932
DIN EN 12179
DIN EN 12211
DIN EN 12444
ASTM E547-00
+ 3 more
Temperaturmessgrößen
Widerstandsnormal
thermometer (IPRT)
Zeiss Industrielle
Temperaturmessgrößen −35 °C
+ 3 more
IEC 61984
IEC 60998-1
IEC 60998-2-1
IEC 60998-2-2
IEC 60998-2-3
+ 3 more
Pilz GmbH & Co. KG Prüflabor
Active
IEC 61000-4-11: 2004
IEC 61000-4-29: 2000
IEC 61000-6-2: 2005
IEC 61000-6-4: 2006
IEC 61496-1: 2012
+ 3 more
Polytest Ingenieure
Active
DIN EN ISO 9934-1
DIN ISO 815-1
DIN ISO 815-2
DIN ISO 4593
DIN EN 50178: 1998
+ 3 more
Poulten Selfe and Lee
Active
TEMPERATURE
Viscosity constant ‘C’
Reference viscometers:
ASTM D4052 (Digital density
Power Diagnostix Systems
Active
Impulsladung
Anstiegszeit
Impulsdauer
Wechselspannung 1 V
> 1,1 kV
+ 3 more
Differentialblutbild
Erythrozyten
Hämatokrit
Leukozyten
Retikulozyten
+ 3 more
External (Tip) Diameter
Helix (lead) total deviation (F
GEARS SPUR/HELICAL EXTERNAL (cont’d)
As for Involute Spline Gauges
Preh
Active
DIN EN 55025: 2018
IEC 61000-4-4: 2012
VDE 0847-4-4
IEC 61000-4-5: 2005
VDE 0847-4-5
+ 3 more
HbA1c
Automatisches Blutbild
Leukozyten
Normoblasten
Retikulozyten
+ 3 more
Calcium
Bilirubin gesamt
Creatinkinase-Muscle-Brain
TPZ nach Quick
Immunglobulin A
+ 3 more
IEC 61000-4-5: 2005
ISO 7637-3: 2016
IEC 61000-4-3: 2006
IEC 61000-4-6: 2013
IEC 60068-2-2
+ 3 more
IEC 68-2-2:1974
MIL-STD-810H Method 501.7
MIL-STD 810G:2008 Method 501.5
MIL-STD-810G, Method 501.5
MIL-STD-810F, Method 501.4
+ 3 more
ProfEC Ventus
Active
IEC 61400-12 Ed.1 *
IEC 61400-12-1 Ed.3 *
IEC 61400-12-3 Ed.1 *
IEC 61400-12-4 Ed.1 *
IEC 61400-12-5 Ed.1 *
+ 3 more
ISO 15835-2
UNE-EN 10002-1
BS EN ISO 15630-1:2019
UNE-EN 10080
BS EN ISO 15630-3:2019
+ 3 more
ISO 6579-1
ISO 15213-2
ISO 11290-1
ISO 7932
F100 based on BS EN ISO
+ 3 more
Pullman Instruments (UK)
Active
DC CURRENT
Measurement
DC VOLTAGE
AC Current Generation
DC RESISTANCE (cont’d)
+ 3 more
QS-Grimm
Active
Parallelendmaße * 0,5 mm
DIN EN ISO 3650:1999
Zylindrische Normale 1 mm
Innenzylinder *
> 100 mm
+ 3 more
QUALILAB
Active
EN 12966: 2014 Section 4.5.4
DIN EN 55025: 2018
DIN EN 60068-2-30
(CISPR 25:2002) Section 6
ISO 11452-4: 2020
+ 3 more
ISO 2591-1
IEC 60512-17-1
DIN EN 15587
DIN EN ISO 16634-2
DIN EN 15948
+ 3 more
ISO 13320
VDE 414-9-11
NF V08-250
ISO 19343
DIN EN ISO 7899-1
+ 3 more
No matching labs found.