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
🇮🇹
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 201–225 of 1,591 labs
Brehmer
Active
DIN EN 60068-2-14
DIN EN 60068-2-30
DIN EN IEC 60068-2-38
DIN EN 60068-2-64
DIN EN 60068-2-78
+ 3 more
Bridgend Asbestos Services
Active
(HSG 248) – 2021
P10.2 based on HSG 248
(PCM) based on HSG 248
British Board of Agrement
Active
DIN EN 12664
DIN EN 12939
DIN EN 12667
ISO 8301
BS 2782:Part 6:Method 632A:1993
+ 3 more
Based on ISO 10312:2019 and ISO
SOP 16 by XRD (ISO BS EN
IEC 60945
IEC 61162-1
IEC 61162-2
IEC 61162-450
IEC 61162-460
+ 3 more
Radioaktivität 50 Bq/m³
Radon-222-
100 Bq/m³
tration in Luft
200 Bq/m³
+ 3 more
DIN EN ISO 2808
DIN EN ISO 3219-2
DIN EN ISO 3838
DIN EN 933-1
DIN EN 933-4
+ 3 more
Conformity assessment — requirements for
Railway composite brake blocks — require
0,2 kN
0,4 kN
100 kN
+ 3 more
DIN EN ISO 945-1
ASTM E562
ASTM E1875
DIN EN 60068-2-64
DIN EN 60068-2-78
+ 3 more
Bundesanstalt für Straßen- und Verkehrswesen Referat F2, Passive Fahrzeugsicherheit, Biomechanik
Active
Beschleunigung
stoßförmig (sin 2 Impuls)
> 1500 m/s
Schwingungsaufnehmer
Bundesministerium der Verteidigung Bundeswehrkrankenhaus Berlin Abteilung XVI Laboratoriumsmedizin
Active
NRBC-Normoblasten
Anteil unreifer Retikulozyten
Erythrozyten
DELTA-He
Leukozyten
+ 3 more
Blutungszeit PFA ADP
Blutungszeit PFA EPI
PFA-P2Y
Erythrozyten
Hämatokrit
+ 3 more
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-3: 2006
VDE 0847-4-3
IEC 61000-4-4: 2012
+ 3 more
EN IEC 61000-4
DIN EN IEC 61000
VDE 0847-4
DIN EN 55016-2
DIN EN IEC 61000-6
+ 3 more
DIN EN ISO 898-1
DIN EN ISO 898-2
ISO 898-1
ISO 898-2
DIN EN ISO 6892-2
+ 3 more
C G C Laboratory
Active
(HSG 248) – 2021
(PCM) based on HSG 248
SOP 5, based on HSG 248
SOP 4, based on HSG 248
/ Messgeräte
Radiometrie 100 µW/cm²
stärkemessgeräte
UV-A 365nm
Linearität der
+ 3 more
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
Radiated emissions (CISPR 32)
verwendete Abkürzungen:
ETSI EN 301 489-1: V2.2.3
EN 61000-3-2 and EN 61000-3-3
IEC 61000-6-1
IEC 61000-4-4: 2012
1.4 Electrostatic Discharge EN 61000-4
+ 3 more
C.W.E. Services
Active
(HSG 264, 2012)
HSG 227 (2004))
Safety Executive guides HSG 264
(2012) and App 3 of HSG 227
(HSG 248) – 2021
+ 3 more
CALTECNICA INGENIEROS
Active
(3 ± 0,5) 10-2 mol/mol (5 ± 0,5) 10-
(5 ± 0,5) 10-2 mol/mol
- 80 ˚C a 200 ˚C
- 20 ˚C a < 23 ˚C 23 ˚C a 40 ˚C > 40 ˚C
- 20 ˚C a 60 ˚C
+ 2 more
No matching labs found.