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Difference between revisions of "NVGate Tachometer"
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→Acquisition real time
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====Acquisition real time==== | ====Acquisition real time==== | ||
Externals syncs are high speed levels comparator that provides accurate events date for the tachs and trigger. External sync is sampled at 64 | Externals syncs are high speed levels comparator that provides accurate events date for the tachs and trigger. External sync is sampled at 64 time the Front-end sampling frequency in order to achieve higher precision in delay or phase measurements. | ||
For external sync or tach signals whose frequencies overload the inputs sampling rate, an internal hardware divider is available in order to lower signal frequency. The upper frequency of the external sync must be lower than 64 times the Front-end frequency range. At input frequencies greater than 300 kHz, sensitivity can be decreased due to the electronic circuitry. | For external sync or tach signals whose frequencies overload the inputs sampling rate, an internal hardware divider is available in order to lower signal frequency. The upper frequency of the external sync must be lower than 64 times the Front-end frequency range. At input frequencies greater than 300 kHz, sensitivity can be decreased due to the electronic circuitry. | ||
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* '''Input filter:''' Select the filter to apply on the instantaneous angular velocity signal computed by the torsional converter. The applied bandwidth is the front-end one. | * '''Input filter:''' Select the filter to apply on the instantaneous angular velocity signal computed by the torsional converter. The applied bandwidth is the front-end one. | ||
''Hidden/fixed: ''Hidden if Mode is Trigger or Tach | ''Hidden/fixed: ''Hidden if Mode is Trigger or Tach | ||
====In post Analyse==== | ====In post Analyse==== | ||