Sine on Random Testing

Sine-on-Random is available as an optional test capability under RandomVIEW test module, and also includes Sine-on-Sine.

    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 32 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.
    Read why you should use higher lines of resolution

    Control channels
    The control signal can be a single input channel, or configured from 2 to 128 input channels with either multi-channel averaging or 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.

    Sine-on-Sine
    Provides engineers the ability to sweep multiple sine tones at different levels across a desired frequency range with no random background. Includes up to 32 true floating point precision sine tones, programmable amplitude and frequency sweep rates, and up to 50 separate frequency/amplitude breakpoints. Also known as Multi-Sine.

Sine

Reference Output (Optional) VR9104

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) VR9204

Import analog or digital time data to automatically generate a profile. Imports PSD data, too.

Additional Screenshots of Sine-on-Random Testing in VibrationVIEW

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