Directional Velocity
The Directional Velocity computed channel generates a signed velocity output from two input channels. One input channel is the unsigned velocity and the second input channel is a position channel to set the sign of the output value.
Screenshot
Generic parameters
- Name: The computed channel name must be unique and contain valid characters (invalid characters are single and double quotes, '\', '@', '#', '&', '<', '>').
- Collect: If checked, the channel data is written to the SIE data file during a test run.
- Description: Optional detailed description of the computed channel.
- Range min and Range max: The expected extreme values of the computed channel output.
- Velocity channel: Select the desired velocity input channel. In the edit dialog, the channel sample rate is displayed in Hz.
- Direction channel: Select the desired direction channel. In the edit dialog, the channel sample rate is displayed in Hz.
NOTE
When viewing the All computed channels tab, the Input channel is the velocity channel. To display both input channels, view the Directional velocity tab.
- Direction channel is a signed channel: Select this option if the direction input channel is a signed channel. In this case the direction channel values should be either -1 or +1. Deselect this option if the direction channel is a position channel and the signs must be determined from positional data values. In this case, if the current position channel sample is greater than the previous sample, the output is set to positive. If the current position channel sample is less than the previous sample, the output is set to negative. If they are equal, the sign remains at its current value.