extra notes

docs/Assignments/extra_research/FR-1-traces.md

@@ -1,7 +1,7 @@
 # FR-1 Trace lengths
 
 ## The experiment
-For the experiment, I used FR-1 that has a thickness of 35µm. On there I will mill 4 trace sizes (0.4 mm, 0,6 mm, 0,8 mm and 1 mm) and they all have the same length of 7.5 cm’s. The traces are seperated by 1 Cm.
+For the experiment, I used FR-1 that has a thickness of 35µm. On there I will mill 4 trace sizes (0.4 mm, 0,6 mm, 0,8 mm and 1 mm) and they all have the same length of 7.5 cm’s. The traces are separated by 1 Cm.
 
 ![alt text](FR-1-Traces.jpg)
 
@@ -26,26 +26,29 @@ The capacitance of a PCB trace is the amount of energy it can hold. It works lik
 The capacitance is determined by the amount of copper is in the trace. So length, width and the thickness. When working with low frequency signals the capacitance is not super important.
 But when working with higher speed frequencies the capacitance can actually mess up the signal integrity.
 
+## Heat generation
+Heat within traces is generated by the current flowing through it. Not the wattage. A good example of the is train lines. These run on 230.000 volts on thin wires while being able to supply multiple trains. The higher the voltage the easier it is the transport a higher amount of wattage.
+
 ## Results
 
-the power. So I grabbed an old robot with 4 stepper motors attached but I could not get them to draw more than 30 watts. So that is why the maximum in this test is 30 watts. I also had a hard time finding a way to measure the temperature of the traces because we only had a heat gun here and the laser was not the place it was actually measuring. So 0,4 mm is not measured properly.
+the power. So I grabbed an old robot with 4 stepper motors attached but I could not get them to draw more than 1.6 Amperage. So that is why the maximum in this test is 1.6 Amperage. I also had a hard time finding a way to measure the temperature of the traces because we only had a heat gun here and the laser was not the place it was actually measuring. So 0,4 mm is not measured properly.
 
-| Trace Width Trace | Resistance | Maximum safe wattage | Burn out wattage |
-| :---------------- | ---------- | -------------------- | ---------------- |
-| 0,4mm             | 3,1Ω       | 15                   | 20               |
-| 0,6mm 2           | 2Ω         | 22                   | 26               |
-| 0,8mm             | 2Ω         | 27                   | ??               |
-| 1mm               | 1,85Ω      | ??                   | ??               |
-|                   |            |                      |                  |
+| Trace Width Trace | Resistance | Maximum safe Current in Ampere | Burn out Ampere |
+| :---------------- | ---------- | ------------------------------ | --------------- |
+| 0,4mm             | 3.1Ω       | 0.7                            | 0.85            |
+| 0,6mm             | 2.7Ω       | 0.9                            | 1.05            |
+| 0,8mm             | 2Ω         | 1.6                            | ??              |
+| 1mm               | 1.85Ω      | ??                             | ??              |
+|                   |            |                                |                 |
 
 
- * The 0,4 mm trace was the first one I tested. I started with 15 watts for a few seconds. After that I increased the wattage to 20 watts and the trace instantly exploded and burned so I could not get temperature readings there. 
+ * The 0,4 mm trace was the first one I tested. I started with 0.7 amps for a few seconds. After that I increased the wattage to 0.85 amps and the trace instantly exploded and burned so I could not get temperature readings there. 
 
- * The 0,6 mm trace it held up well up to 27 watts where it started getting burn marks within a 5-10 seconds. The temperature rose to 50 degrees celsius. At 29 watts the pcb burned out at 68 degrees celsius.
+ * The 0,6 mm trace it held up well up to 0.9 amps where it started getting burn marks within a 5-10 seconds. The temperature rose to 50 degrees celsius. At 1.05 amps the pcb burned out at 68 degrees celsius.
 
- *  When testing the 0,8 mm trace I hit a roof with how much power I could consume with the robot. I could only get up to 30 watts and I did not manage to break the trace after powering it for a few minutes. The maximum I found before it started discoloring was 24 watts at 54 degrees celsius. This was measured after it was left on for 2 minutes.  
+ *  When testing the 0,8 mm trace I hit a roof with how much power I could consume with the robot. I could only get up to 1.6 amps and I did not manage to break the trace after powering it for a few minutes. The maximum I found before it started discoloring was 24 watts at 54 degrees celsius. This was measured after it was left on for 2 minutes.  
 
- * I could not get to the 1mm trace because the robot could not draw more than 30 watts. So thats why these are not filled in the table.
+ * I could not get to the 1mm trace because the robot could not draw more than 1.6 Amperage. So thats why these are not filled in the table.
 
 
 ## Extra notes on temperature

docs/final_project/final_project.md

@@ -174,7 +174,7 @@ Now that I am in week 15 this has changed. The change is on the drone are going
 
 ![alt text](image-30.jpg)
 
-I've already gotten the motors to spin in [week 10](../Assignments/week_10_output_devices/output_devices.md) using the script in there. Now I also need to modify the original VTOL driver so my ESC's can properly understand it's instructions.
+I have already gotten the motors to spin in [week 10](../Assignments/week_10_output_devices/output_devices.md) using the script in there. Now I also need to modify the original VTOL driver so my ESC's can properly understand it's instructions.
 
 There's one specific function I need to change.
 ??? Old code