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Difference between revisions of "NVGate Tachometer"
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→DC Tach
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===DC Tach=== | ===DC Tach=== | ||
DC | Up to 4 tachometers using signal from DC inputs can be activated. It<nowiki>’</nowiki>s particularly interesting if a tachometric transducer which delivers voltage proportional to rotational speed is used for the measurement (the sensitivity is in Volt/RPM). The actual speed is continuously known during the rotation. Be aware than phase measurement is not accurate with the method. | ||
====Acquisition==== | ====Acquisition==== | ||
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The rotation side is managed independently for each tachometer (Ext. sync, input, D, combined and fractional). Default setup is ''Counterclockwise''; | The rotation side is managed independently for each tachometer (Ext. sync, input, D, combined and fractional). Default setup is ''Counterclockwise''; | ||
* '''Average size: '''defines the average number used to compute the average speed. | * '''Average size: '''defines the average number used to compute the average speed. | ||
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The connection of a DC Input is possible using the wizard toolbar and especially the tachometer connection window. If a DC Input is defined as a tach by this way, the set up <nowiki>’</nowiki>tach<nowiki>’</nowiki> is automatically activated and the physical quantity is forced to angular velocity. | The connection of a DC Input is possible using the wizard toolbar and especially the tachometer connection window. If a DC Input is defined as a tach by this way, the set up <nowiki>’</nowiki>tach<nowiki>’</nowiki> is automatically activated and the physical quantity is forced to angular velocity. | ||
- The '''sensitivity''' and the '''offset''' can be automatically updated by calibrating the DC Input | - The '''sensitivity''' and the '''offset''' can be automatically updated by calibrating the DC Input | ||
====Post analyse==== | |||
[[image:DCPA.png|framed|DC Tach in PA ]] | |||
In Post-Analyze, the DC tachs are available. | In Post-Analyze, the DC tachs are available. | ||
They can be activated and connected to a DC Input available in the signal loaded in the player. The set up magnitude, sensitivity and offset allow to calibrate the DC Input in post analyze to obtain the correct values of the angular velocity. | They can be activated and connected to a DC Input available in the signal loaded in the player. The set up magnitude, sensitivity and offset allow to calibrate the DC Input in post analyze to obtain the correct values of the angular velocity. | ||
Settings are the same than in acquisition mode | |||
=====Extract DC from dynamical input in post analyse===== | |||
If you have record a tachometer on a dynamical input, you can extract the DC of this channels using the monitor. The define a DC tachomter with the valuemonitor DC. The process is as follow : | |||
* Open the ribbon Analyses / Monitor / Inputs button. | |||
* Select the DC tach Track in one Monitor channel. | |||
* From the ASB, add a DC tach and select the ''Mon'' of selected input as a source. | |||
[[Image:release_note_NVGate_V12_10_60.png|framed|none]] | |||
[[Image:release_note_NVGate_V12_10_05.png|framed|none]] | |||
The DC tach is then available for any tachometer usage. | |||
===Fractional Tachs=== | ===Fractional Tachs=== | ||