Beschreibung
Modelle und Varianten
Vorteile und Besonderheiten
Hauptmerkmale
Typische Anwendungen
Systemlösungen und Sonderausführungen
Messverfahren und -ablauf
Einrichtung eines automatischen Modalhammers
Software und Bedienung
Ergebnisse, Datenformate und Schnittstellen
Technische Daten
Normen und Richtlinien
Mit dem VQC können Messungen entsprechend den folgenden Normen und Richtlinien durchgeführt werden
Die Messergebnisse werden dabei automatisch oder ganz einfach auf Knopfdruck in einem Report zusammengefasst.
FAQ
Produktgalerie
Optionen und Zubehör
Downloads
Videos und Anwendungsbeispiele
Passende Produkte und Dienstleistungen
Weiterführende Inhalte
Description
With the quality test stand, it is possible to determine the modal parameters (natural frequencies and damping) of various technical components fully automatically, detect parts that deviate from specifications, and mark or eject them.
This test is essential, especially for final inspection of aluminium components (shrinkage cavities, coarse grain formation and geometric deviations), brake pads (shape deviations and lining separation), and brake discs (coating defects and cracks). In production quality control, modal parameters are characteristics that can be determined quickly.
With the VQC, MAUL-THEET offers a complete system that performs and evaluates these measurements fully automatically and, if required, marks or ejects components that deviate from specifications.
Standards and guidelines
Advantages & Innovations
- Crack detection in components
- Detection of blowholes and coarse grain formation
- Detection of geometric deviations
- Detection of brake pad detachments
- Detection of delamination
- Cost and time savings thanks to low personnel requirements
- Cost and time savings through non-destructive testing (NDT)
- 100% testing compliant with VDA 301 & VDA 302
- Automated test system for determining natural frequencies and damping
- User-friendly software
- Very short cycle times
- High reproducibility
- Bounce-free excitation
- DAkkS calibration (DIN EN ISO/IEC 17025) possible
- Fully automatic measurement and evaluation
- Setting frequency bands for quality control (good/bad statement)
- Calculation of damping or loss factor
- Freely selectable dB values for the attenuation calculation
- Quality factor for damping value
- Excitation by automatic modal hammer
- Vibration measurement with a microphone or laser Doppler vibrometer
- Frequency range up to 100kHz
- Frequency resolution <1Hz at 20kHz
- Automatic measurement report generation
- Central database via LabLINK or SQL
- Data export in ASCII or CSV format
Application & Integration
- Quality control
- Series testing
- In-line tests
- End-of-line testing
- 100% inspection
- Testing of brake components according to VDA 301 and VDA 302
- Natural frequency measurement
- Damping determination
- Determination of resonances
- Component tests
- Material testing
- Prototype study
Components
Excitation unit
The broadband excitation is carried out with an automatic modal hammer
- Frequency ranges up to 60kHz
- Impact forces up to 2500N
- High reproducibility
Vibration sensor
The VQC can be operated with the following vibration sensors
- Laser Doppler vibrometer
- Microphone
Measurement data acquisition
4-channel measuring system with synchronous scanning
- AC, DC and IEPE coupling
- Anti-aliasing filter
- 24-bit resolution
- Measurement range up to 100kHz
- 100 to 25,600 FFT lines
Windows PC
- Standard or industrial PC, also according to customer requirements, with Windows 10/11
Software
The VQC software controls the entire testing process. It includes the automatic measurement of test items in the series, the analysis and communication with the production line control.
Specification of the test object
- Component identification via bar or QR code
- dB values for attenuation calculation (0.5 to 3dB)
- Frequency range 1 to 100kHz selectable
- Frequency resolution (number of FFT lines) selectable
- Frequency bands and permissible tolerance ranges
Measuring sequence in series
- Start of the measuring process after component positioning has been completed
- Averaging
- Determination of quality parameters (frequency, attenuation, etc.)
- Transmission of the quality decision to the manufacturing and production facility
Automatic measurement procedure
- Automatic component positioning
- Triggering the automatic modal hammer
- Measurement of impact force and vibration response
- FRF averaging
- Peak picking, attenuation calculation and quality assessment
- Control for component separation
Output of the test data
- LabLINK connection according to customer specifications
- SQL database connection according to customer specifications
- Printer, PDF, Excel, CSV, etc.
System solutions
What we can do for you
In addition to manufacturing and supplying standard measurement systems for determining natural frequency and damping, we design, plan, and develop customized solutions tailored to your requirements. We are also happy to perform the measurements for you as a service.
Contact us and we will provide a tailored quote.
Videos
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