- Easy test entry
Frequency/amplitude breakpoints of the background random acceleration spectrum are entered in an easy to read tabular form using either frequency and amplitude breakpoints, or by entering one endpoint and the desired dB/octave slope. Over 1000 separate frequency/amplitude breakpoints can be entered, allowing entry of virtually any test.
- Sine 'Tones'
1 to 10 true floating-point precision sine tones can be superimposed on the background random spectrum, and swept back-and-forth between frequencies at a user-programmable rate. The amplitude and frequency sweep parameters are all user programmable. Up to 200 separate frequency/amplitude breakpoints can be entered, allowing entry of virtually any test spec.
- Lines
The controller comes standard with 50 to 1600 lines of control to provide you with the frequency resolution required for your test.
- Control channels
The control signal can be a single input channel, or configured from 2 to 32 input channels with either multi-channel averaging or optional multi-channel notching for the random signal.
- Test & Level scheduling
Tests can be scheduled to run a user-defined length of time, the spectrum level can be scaled by a specified dB-level, percentage, or scaled for a specified RMS acceleration. Level schedules can be entered to run various durations at different acceleration levels.
- Configurable safety limits
To protect your test article and shaker system, configurable acceleration limits, line limits and drive limits can be set by the user. The control input is also verified against shaker acceleration limits.
- Data Storage
All of the test data can be stored to the disk for later retrieval. Data storage can be done manually, or programmed to automatically save at user-defined intervals.
- Reference Output (Optional) VR611
The second output channel supplies a synchronization signal of the first sine tone.
- Data plots
Many graphical display options are available, including acceleration spectral density, output voltage spectral density and channel-to-channel transmissibility. Graphs can be easily auto-scaled or zoomed, and cursors displayed. Data and text annotations can be easily placed on the graphs, with data values updated live as the data changes.
- Random Import (Optional) VR650
Import analog or digital time data to automatically generate a profile. Imports PSD data, too.
