Description
The vImpact-21 is an automatic modal hammer for the precise, bounce-free, and reproducible excitation of test specimens for experimental modal analysis. Its compact design and variable impulse control enable precise vibration excitation of smaller components, parts, and structures.
The impact force can be continuously adjusted, allowing the automatic modal hammer to be flexibly adapted to different materials and measurement requirements.
The vImpact-21 automatic modal hammer combines functionality and compactness, making it ideal for high-frequency measurements up to 20kHz on smaller components or assemblies.
Advantages & Innovations
- High reproducibility
- Bounce-free excitation
- Adjustable impact forces up to 220N
- Impact force adjustable from 1 to 100%
- Frequency ranges up to 20kHz
- Easy positioning
- Variable distance to the test object
- Easy setup with zero-point positioning
- Interchangeable force cells
- Plug and play
- Suitable for measurements in clean rooms
- DAkkS calibration (DIN EN ISO/IEC 17025) possible
Application & Integration
- Quality control
- End-of-line testing
- Automated modal analysis without supervision
- Material testing
- Condition analysis
- Process monitoring
- Experimental modal analysis
- Test stands
- Damping determination
- Frequency analysis
- Sound analysis
Setup Automatic modal hammer
Good excitation
When operating an automatic modal hammer, the precise setup of the hammer is important in order to obtain good transmission functions.
To do this, the tip of the hammer must hit the measurement object at a right angle. In this case, the load cell is subjected to axial stress and guarantees that the force is transmitted correctly.
Bad excitation
If not set up correctly, the load cell will also be loaded in the transverse direction. The load cells are designed for measurement in the axial direction. Transverse forces that occur are not measured.
In the case of a non-vertical impact, the test object is excited at an angle and the vertical impact force is unknown.