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 651–675 of 1,817 labs
Gütegemeinschaft Schlösser und Beschläge e.V. PIV Prüfinstitut Schlösser und Beschläge Velbert
Active
DIN EN 1026
DIN EN 1027
IEC 60512-15-3
IEC 60512-15-5
DIN EN 12179
+ 3 more
ISO 3105
ASTM D 7042
ISO 2909
ASTM D 5293
ISO 3104
+ 3 more
HAZET-WERK Hermann Zerver
Active
Tensile testing of metallic materials (I
Vickers hardness test (ISO 6507)
Drehmoment 2 N·m
Handbetätigte
20 N·m
+ 3 more
Verschlusszeit (ADP, Epinephrin, P2Y12)
HCG, ß-HCG
PF4/Heparin-Komplexe
induzierte Thrombozytopenie, Test)
Differenzialblutbild (maschinell)
+ 3 more
HCG, ß-HCG
Ampicillin
Cefipim
Hämoglobin A1c (HbA1c)
Linecolid
+ 3 more
ADP-Antagonisten
TRAP-6-Aktivierung
ASS-Inhibition
Thrombozyten-Funktionsanalyse
β-HCG
+ 3 more
HELLA GmbH & Co. KGaA
Active
Elektrische Messgrößen 0,1 mV
- Gleichspannung
200 V
Gleichspannung 0,1 mV
/ Messgeräte
+ 3 more
IEC 61000-4-2: 2008
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
IEC 61000-4-6: 2013
IEC 61000-4-8: 2009
+ 3 more
HENSOLDT Sensors
Active
- Gleichspannung
Spannungsmessgeräte
> 20 V
> 200 V
Spannungsquellen
+ 3 more
Natriumchlorid
Glucose
Kalium
Natrium
Albumin
+ 3 more
HFB Engineering
Active
DIN EN ISO 10666
DIN 53438-3
rs738409
DIN EN 1382
DIN EN 1383
+ 3 more
Gleichspannung a)
/ Messgeräte
> 600 kV
Messsysteme, Teiler
> 5 kV
+ 3 more
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-4: 2012
VDE 0847-4-4
IEC 61000-4-5: 2005
+ 3 more
HLK Stuttgart
Active
DIN EN 442-2
DIN EN 16430-1
DIN EN 16430-2
DIN EN 16430-3
DIN 4703-3
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HOP'LAB
Active
NF X43-050 (parties utiles de
NF X 43-050
NF X43-050 (parties utiles de la
HORIBA MIRA
Active
IEC/CISPR 25
DIN EN 55025: 2018
ISO 7637-2
ISO 11451-1
IEC/CISPR 12
+ 3 more
accordance with BS EN ISO 5349-1
ISO 5667-5
UNI 10500
DIN EN ISO 10523
DIN EN 12341
+ 3 more
HSL Compliance
Active
(HSG 248) – 2021
M003 based on HSG 248
(PCM) based on HSG 248
M002based on HSG 248
HSG 227 (2004))
+ 2 more
HYDAC Systems & Services
Active
Gleichspannung 0 µV
Messgeräte > 20 mV
Messgeräte > 200 mV
> 2 V
> 20 V
+ 3 more
HaBu Hauck Prüftechnik
Active
Härte *) 20 HRA
Härtevergleichsplatten 20 HRB
nach Rockwell Verfahren 20 HRC
40 HRD
60 HRF
+ 3 more
Hampshire Scientific Service
Active
(HSG 248) - 2021
ASB/SOP/OM8 based on HSG 248
ASB/SOP/OM6 based on HSG 248
DIN EN 12697-11
on BS 4401:Part 3:1970(1986)
+ 3 more
Hartford Steam Boiler UK
Active
BS 2790 - Specification for the design a
BS 1113 - Specification for the design a
BS EN 13480 Parts 1 to 8 - Metallic
EN 13445 – Parts 1 to 10 Unfired pressur
BS EN ISO 15614 and ASME IX
+ 3 more
automatische Zelldifferenzierung
Erythrozyten
Leukozyten
Retikulozyten
Thrombozyten
+ 3 more
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