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Automatic modal hammer | vImpact-64

With the new vImpact-64, we have managed to design an automatic hammer that can be easily set up in all positions on a production line.
Datasheet (EN)

Description

The vImpact-64 is a compact and powerful automatic modal hammer that represents an advancement in quality control.

Thanks to the optimized hammer geometry of the vImpact-64, even flat structures can be stimulated centrally. The vImpact-64 offers flexible adjustment of the pulse strength and also has a timer mode in which shocks are automatically triggered for an adjustable time interval. It also has zero point positioning (EndPos), which allows the hammer to be easily set up for different testing requirements.
The automatic modal hammer vImpact-64 combines functionality and compactness, making it ideal for high-frequency measurements on smaller components or assemblies.

Advantages & Innovations

  • Bounce-free excitement, no “double hits”
  • Shock force adjustable from 0 to 100 %
  • High reproducibility
  • Frequency ranges up to 60 kHz
  • Adjustable impact forces up to >150N
  • Interchangeable load cells
  • Variable distance to the test object
  • Easy setup with zero point positioning
  • Optimized for end-of-line testing
  • Easy positioning
  • Hit counter
  • Plug and play
  • Intuitive operation via the controller’s touchscreen
  • Can be controlled via USB using ASCII commands
  • vImpact remote software included
  • Model variants for climate chambers from -65 °C to 150 °C available
  • Suitable for measurements in clean rooms
  • Countdown till hit in timer mode

Application & Integration

  • Experimental modal analysis
  • Quality control
  • End-of-Line Tests
  • Test stands
  • Damping determination
  • Frequency analysis
  • Sound analysis
  • Laser scanner
  • Automated modal analysis without supervision

Setup Automatic modal hammer

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.

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.

The new vImpact-63/64 and vImpact-2003/2004 have a setup mode in which the hammers move to the intended stop position. In this position, it is very easy to align the automatic modal hammers correctly.