Measurement software

vibration visualizationvibration testcontrol

The Total Harmonic Distortion (THD) of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency. In an EDM sweep sine vibration test, the sweep THD can be enabled by checking the option under Advanced Settings in the Test Parameter tab. Notching and Limiting Limiting can be applied to monitor or control channels in either the frequency or time domain. Limit types are either for notching (dropping the control around certain frequencies to avoid resonances) or Alarm/Abort purposes. Advanced limiting for summed channel notching and vector notching is also supported for Sine. Supports up to 128 notching/limiting channels out of 512 input channels. Unique Features in Total Harmonics Distortion (THD) Vibration Visualization: The EDM Vibration Visualization feature is available in EDM VCS software all test types, including MIMO VCS. This option provides fast and efficient structural model generation and full 3D visualization of the online vibration pattern on the structure under test. Multiple instances of EDM VCS can run simultaneously on the same computer. Each instance connects a Spider system to run the vibration controller software. All instances must run different tests. This feature provides a central place to control multiple Spider systems and perform vibration tests separately. Black Box Mode: Operating Without a PC A supported front-end can operate in Black Box mode which allows it to perform a test without a connected PC.