Description
To monitor production quality, brake pistons are currently cut up at random and visually inspected by employees. Some pistons are also cut up during system setup, resulting in high scrap rates and high labor costs.
With the system solution VQC for brake pistons, dynamic parameters (natural frequencies and damping) are determined and evaluated using frequency bands (good/bad). Our high frequency ranges (40kHz) with high frequency resolution allow even the smallest defects to be identified. Cracks in walls and floors, geometric and shape defects as well as defects after hardening can thus be detected non-destructively.
MAUL-THEET helps manufacturers work more cost-efficiently (less scrap, fewer false positives, time savings through non-destructive testing). By using VQC for brake pistons, we ensure that only brake pistons of the highest quality are delivered.
Advantages & Innovations
- Crack detection in the complete component (wall/floor), also in phenolic pistons
- Detection of geometric and form defects, even in phenolic pistons
- Detection of defects after curing/through-curing, even in phenolic pistons
- Cost and time savings through non-destructive testing
- Automated testing system for quality control
- Software guided measurement
- DAkkS calibration (DIN EN ISO/IEC 17025) possible
- Automatic measurement with just one click
- 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
- Vibration measurement with a laser Doppler vibrometer
- Frequency range up to 40kHz
- Frequency resolution < 1Hz to 20kHz
- Automatic measurement report generation
- Data export in ASCII or CSV format
Application & Integration
- Quality control
- Series testing
- End-of-line testing
- 100% inspection
- In-line testing
- Determination of resonances
- Natural frequency measurements
- Determination of eigenvalues
- Material testing
Components
Vibration exciter
The broadband excitation is carried out with an automatic modal hammer
- Frequency ranges up to 40kHz
- Impact forces up to 2500N
- High reproducibility
Vibration sensor
The VQC for brake pistons can be operated with the following vibration sensors
- Laser Doppler vibrometer
Measurement data acquisition
4-channel measuring system with synchronous scanning
- AC, DC and IEPE coupling
- Anti-aliasing filter
- 24-bit resolution
- Frequency ranges 1 to 100kHz
- Frequency resolution 100 to 26500 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 automatic brake piston measurement (one-click), data analysis, and documentation and report generation.
Specification of the test object
- Name and meta data
- 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
Measurements for a test object
- Measurements on a component
- Presentation of results and measurement report for a component
What we can do for you
Automatic measurement procedure
- Triggering the automatic modal hammer
- Measurement of the excitation force and the vibration response
- FRF averaging
- Peak picking, attenuation calculation and quality assessment
Report creation and output of results for each examinee
- Custom report template
- Printer, PDF, Excel, CSV, etc.
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.
Please contact us, we will be happy to make you an offer.