Difference between revisions of "Campbell Diagram Tool"

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When using a '''pre-computed waterfall''' (.res), the STFT windows are fixed in time. At sweep rates above ~50 RPM/s and for orders higher than 5×, some amplitude underestimation and peak broadening may occur. For resonance location (critical speed identification), this is generally acceptable. For amplitude-critical measurements (API acceptance tests, ISO compliance), prefer raw signals with a tacho.
When using a '''pre-computed waterfall''' (.res), the STFT windows are fixed in time. At sweep rates above ~50 RPM/s and for orders higher than 5×, some amplitude underestimation and peak broadening may occur. For resonance location (critical speed identification), this is generally acceptable. For amplitude-critical measurements (API acceptance tests, ISO compliance), prefer raw signals with a tacho.
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== Technical Reference ==
=== Supported NVGate file types ===
{|class="wikitable"
|-
!File!!Description
|-
|<code>.orm</code>||JSON metadata for one recorded channel (sampling rate, unit, name…)
|-
|<code>.ors</code>||Raw float32 little-endian samples in SI units
|-
|<code>Result.res</code>||Pre-computed NVGate results (waterfall, spectra…) — read via the OROS orostk library
|}
=== Keyboard shortcuts ===
{|class="wikitable"
|-
!Key!!Action
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|Mouse move||Update cursor (RPM, freq, amplitude)
|-
|Right-click on plot||Add resonance marker at cursor frequency
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|Scrollbar (right panel)||Access all display settings when in full-screen mode
|}
=== System requirements ===
{|class="wikitable"
|-
!||Minimum!!Recommended
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|OS||Windows 10||Windows 10/11 64-bit
|-
|RAM||2 GB||4 GB
|-
|Disk||600 MB free||1 GB free
|-
|Display||1280 × 720||1920 × 1080 or dual monitor
|}


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