|
|
Line 55: |
Line 55: |
|
| |
|
| ===Twist=== | | ===Twist=== |
| The twist measurement consists of computing the angle between the 2 side of transmission shaft (or belt/chain). The measured angle is directly proportional to the stress and the applied torque.
| | [[NVGate_Torsional#Twist_measurements_.28static_and_dynamic.29|Read torsional page]] |
|
| |
|
| The twist can be:
| |
|
| |
| * '''Static twist''': measure the transmitted torque and power. This is a parameter, not for analysis purpose
| |
| * '''Dynamic twist''': measure the oscillating stress and resonances. This is a dynamic signal to be analyzed.
| |
| Both signals (torsional) are computed simultaneously by the virtual input module.
| |
|
| |
| For computing the phase between the 2 sides of the twist it is necessary having a tachometer.
| |
|
| |
| This tachometer can come from any of the inputs or directly from one of the torsional signals using the ''Torsional <nowiki>+</nowiki> tach.'' mode.
| |
|
| |
| The Twist sub-modules allow selecting each torsional signal from the ''source 1'' and ''source 2'' lists.
| |
|
| |
| [[Image:Virtual_Inputs_07.png|framed|none]]
| |
|
| |
| The twist will be displayed in angle or torque. The coefficient is used to convert the read angle in torque.
| |
|
| |
| The result are available from the add/Remove windows under the virtual input tab.
| |
|
| |
| ====Uncorrelated pulse number====
| |
| Note that any number of pulses/rev can be used for twist computation and these numbers of pulses/rev can either be different on each side.
| |
| ===Tutorial=== | | ===Tutorial=== |
|
| |
|