TWGM 206 — Waveform Generator
Controlled excitation signals for shaker-based structural testing.
- ●Pink noise, white noise, and random noise generation
- ●Noise burst for low-coherence averaging
- ●Frequency sine sweep (linear and logarithmic)
- ●Frequency sine sweep burst for structural FRF measurements
- ●Bandpass filter on noise output — limits energy to measurement bandwidth
- ●Compatible with TIERA T-Xcite series electrodynamic shakers and amplifiers
- ●Integrates with TVIB software suite for end-to-end modal acquisition
Shaker-based structural testing requires a repeatable, spectrally controlled excitation signal. A random noise burst, for example, drives the structure at all frequencies simultaneously while preserving the cyclostationary conditions needed for coherent FRF averaging. A log sine sweep concentrates energy progressively across frequency and is preferred when the structure has lightly-damped modes that need sufficient dwell time to respond fully.
TWGM 206 provides these signal types from within the TVIB software environment. The output drives the T-Xcite shaker amplifier directly via DAC output on PhonoVibe DAQ hardware, closing the loop between excitation generation and response acquisition in a single software instance. This eliminates timing offset between generator and analyser that can degrade coherence in multi-channel FRF measurements. The bandpass filter option on noise outputs prevents out-of-band energy from exciting modes above the measurement range of interest, protecting both the structure under test and the shaker.
Want to buy or trial it?
Email Varghese (sales) or book a 20-minute demo call.