Automatic Modal Hammer | vImpact

vlmpact-Serie

Description

A manual excitation with a small Modal hammer without a „Double Hit“ is nearly impossible – a well-known and very inconvenient issue. As a solution for this issue MAUL-THEET developed the product family of the automatic Modal hammer „vImpact“. This enables you to precisely and reproducibly excite structures and measure the excitation forces. The series of automatic Modal hammer from MAUL–THEET includes the vImpact–20 and the vImpact–60. The difference lies mainly in the performance of the measuring range – the vImpact–60 to max. 60kHz, the vImpact–20 measures up to 20kHz.

Innovation

Unlike their predecessors vImpact-60, vImpact-20 and vImpact-2000, the new models have increased the maximum power of impact, especially during overhead excitation. At the same time, we have made them more user-friendly by reducing the number of controls and improving the ability to adjust the impact force. Furthermore, the signal cable can be grounded via a switch to improve the signal-to-noise ratio.

The vImpact system is divided into two components:

Hammer Head

Controller

The hammer head includes the small Modal hammer who has an integrated force cell and the electro dynamic actor that moves the hammer. The control unit sends the impulse that moves the Modal hammer to the actor inside the hammer head. The measured force signal is at the output of the control unit available. The hammer can be triggered by several methods:

Manually with a button on the control unit

By closing the external input e.g. by a push button extension or by a third-party device.

Via a TTL pulse at the external input.

With the built-in timer in the range of 4 beats per second up to 1 beat per 1000s (16 minutes)

Technical Data

TypevImpact-61vImpact-21vImpact-2001vImpact-61.ivImpact-21.i
Hammer forceadjustableadjustableadjustablefixfix
Max. Impact force
(Steel on Steel)
> 150 N peak
> 150 N peak
> 2000 N peak
> 150 N peak> 150 N peak
Frequency range
(Steel on Steel)
> 40 kHz
> 20 kHz
> 6 kHz
> 40 kHz> 20 kHz
Coupling2-4 mA, IEPE
2-4 mA, IEPE
2-4 mA, IEPE
2-4 mA, IEPE
2-4 mA, IEPE
TriggerTimer // Button// External Contact (Closer)// TTL (40 .. 200 ms)
Timer // Button// External Contact (Closer)// TTL (40 .. 200 ms)Timer // Button// External Contact (Closer)// TTL (40 .. 200 ms)Timer // Button// External Contact (Closer)// TTL (40 .. 200 ms)Timer // Button// External Contact (Closer)// TTL (40 .. 200 ms)
Power Supply24 V24 V36 V24 V24 V
MassHead: 0,41 kg, Controller: 0,6 kgHead: 0,42 kg, Controller: 0,6 kgHead: 4.9 kg, Controller: 0.6 kgHead: 0,41 kg, Controller: 0,6 kgHead: 0,42 kg, Controller: 0,6 kg

Videos

vImpact-2001

vImpact-61