Differences

This shows you the differences between two versions of the page.

--- slice:z-n [2019/04/02 16:06] – [Instructions] Michael Radunsky
+++ slice:z-n [2019/04/02 23:19] – [Table] Michael Radunsky
@@ Line 18: / Line 18: @@
   - Set Proportional Gain (K<sub>P</sub>) to 0
   - Turn off Integral and Differential portions of the loop (T<sub>I</sub> & T<sub>D</sub>, respectively)
-  - While monitoring the error in temperature on rolling graph on the SLICE-QT display((It is also possible to [[slice:qt#front-panel_inputs_outputs|set an output port]] to deliver the ∆T signal to an external oscilloscope.)), **slowly** increase K<sub>P</sub> until the error begins to oscillate
+  - While monitoring the error in temperature on rolling graph on the SLICE-QT display or an  [[slice:qt#front-panel_inputs_outputs|external oscilloscope]], **slowly** increase K<sub>P</sub> until the error begins to oscillate
   - Use the {{slice:graph_scale_x.gif}} and {{slice:graph_scale_y.gif}} icons, to scale displayed response appropriately
   - Use the {{slice:graph_pause.gif}} icon to pause the graph
+    - You can use the two rotary knobs or touch & drag the cursors on the touch screen
   - Note K<sub>P</sub> where oscillation begins, K<sub>P, cr</sub>
   - Use the Cursors enabled by touching the {{slice:cursors.gif}} icon to measure the period of oscillation, T<sub>cr</sub>
@@ Line 26: / Line 27: @@
 <WRAP center round box 60%><tabcaption Z-N |Ziegler-Nichols loop values>
-| **Type of Control Loop**  |  K<sub>P</sub>          | T<sub>I</sub>        | T<sub>D</sub>         |
+| **Type of Control Loop**  |  K<sub>P</sub>           | T<sub>I</sub>         | T<sub>D</sub>          |
-| **PI**                    |  0.45K<sub>P, cr</sub>  |  0.83T<sub>cr</sub>  | 0                     |
+| **PI**                    |  0.45•K<sub>P, cr</sub>  |  0.83•T<sub>cr</sub>  | 0                      |
-| **PID**                   |  0.6K<sub>P, cr</sub>   |  0.5T<sub>cr</sub>   |  0.125T<sub>cr</sub>  |
+| **PID**                   |  0.6•K<sub>P, cr</sub>   |  0.5•T<sub>cr</sub>   |  0.125•T<sub>cr</sub>  |
 </tabcaption></WRAP>