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
1,591
Accredited labs
17
Countries
Showing 1,301–1,325 of 1,591 labs
Railway brake — magnetic track brakes (U
Kraft (WPM)
Länge (WPM)
a) nur Vor-Ort-Kalibrierungen
Vickers hardness test (ISO 6507)
+ 3 more
Total Clean Air
Active
ISO 14644-3
BS EN ISO 14644-2:2015:Part 2
DIN EN 12469
BS EN ISO 14644-1:2015
BS EN ISO 14644-4:2022
+ 3 more
DIN EN 55016-2-1
DIN EN 55016-2-2
DIN EN 55016-2-3: 2020
DIN EN 61000-2-2
IEC 61000-4-2: 2008
+ 3 more
Trescal
Active
- Gleichspannung
/ Messgeräte
10 V; 100 V; 1000 V
> 100 mV
> 0,22 V
+ 3 more
Tritech Oberflächentechnik
Active
ASTM B 571
DIN EN ISO 2819
DIN EN ISO 4628-4
DIN EN ISO 4628-8
DIN EN ISO 4628-10
+ 3 more
Tru-Cal Metrology
Active
including dial and digital
LENGTH (cont’d)
Plain plug gauges (taper)
ANCILLARY MEASUREMENTS
Plain ring gauges (taper)
+ 3 more
Tyneside Standards
Active
Micrometers
See Notes 3 and 5
See Note 6
Caliper
length bars) – See Note 5
+ 3 more
TESICNOR
Active
UNE-EN 60903
UNE-EN IEC 61243-1
UNE-EN 50508
UNE 204001
UNE-EN 61111
+ 2 more
TÜV NORD Mobilität
Active
positiven Überdruck
positiver Überdruck
- Gleichstromstärke
Kraft
Schließ- und
+ 3 more
TÜV NORD Nederland
Active
DIN EN ISO 17232
DIN EN 14960
NEN 3140
#EN ISO 5164:14
EN 1069
+ 3 more
TÜV NORD Umweltschutz
Active
DIN ISO 16000-3
DIN ISO 16000-6
DIN ISO 16000-13
DIN ISO 16000-18
DIN ISO 16000-20
+ 3 more
Environmental Protection
Active
DIN CEN/TS 17021 (DIN SPEC 33976)
DIN EN ISO 3745
DIN EN 12102-1
DIN EN 12102-2
DIN 45635-1
+ 3 more
DIN EN 12897
DIN EN 15332
DIN SPEC 1101
DIN EN 303-5
DIN EN 13126-19
+ 3 more
TÜV Rheinland Industrie Service GmbH Prüflaboratorium Safety & Security for Automation & Grid
Active
IEC 60068-2-1
IEC 60068-2-2
IEC 60068-2-6
IEC 60068-2-14
DIN EN 60068-2-14
+ 3 more
DIN EN 50178: 1998
DIN EN ISO 179-1
ISO 21527-1
ISO 21527-2
DIN EN ISO 527-3
+ 3 more
IEC 60068-2-1
IEC 60068-2-2
IEC 60068-2-14
DIN EN 60068-2-14
IEC 60068-2-30
+ 3 more
TÜV Rheinland LGA Products
Active
DIN EN 71-10
DIN EN 62321-2*VDE 0042-1-2
DIN EN 1264-5
DIN EN 13647
DIN EN 16889
+ 3 more
UNE-EN 14181
UNE-EN 13284-2
UNE-EN 15259
UNE-EN 16911-2
UNE-EN 14385
+ 3 more
TÜV SÜD Auto Service
Active
Railway wheelset design forces (UIC 519)
Rollenbremsprüfstände
Kraft
Prüfsystem
Prüfgeräte (SEP)
+ 3 more
TÜV SÜD Industrie Service
Active
DIN EN ISO 4136
DIN EN ISO 5178
DIN EN ISO 6892-2
DIN EN ISO 14273
DIN EN ISO 5173
+ 3 more
DIN 18032-7
DIN EN 1328
DIN EN 61378-2
DIN EN ISO 16810
DIN EN 1048
+ 3 more
TÜV SÜD Product Service
Active
DIN EN 50178: 1998
IEC 62040-1
VDE 0558-510
DIN VDE 0620-1
DIN VDE 0620-2-1
+ 3 more
TÜV SÜD Product Service
Active
IEC 60335-1: 2010
VDE 0700-1
DIN EN 60335-2-2
VDE 0700-2
IEC 60335-2-2
+ 3 more
TÜV SÜD Product Service
Active
DIN EN IEC 61851
DIN EN ISO 6185-3
DIN EN 61854
DIN EN 16083
DIN EN 16051-1
+ 3 more
No matching labs found.