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Changes for page Sensor Module

Last modified by Heimir Thordarson on 2026/07/05 12:56
From version 64.7
edited by Heimir Thordarson
on 2026/03/23 19:34
Change comment: There is no comment for this version
To version 66.4
edited by Heimir Thordarson
on 2026/03/24 14:44
Change comment: There is no comment for this version

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... ... @@ -252,9 +252,34 @@
252 252  
253 253  == Cooling System Sensor ==
254 254  
255 -There will be four cooling system sensor on the AR26 vehicle, and all of the sensors include two measurements each. These two signals are water temperature and pressure. With this the temperature delta over the entire cooling system can be measured, but also the overall water flow. If the equiv
255 +There will be four cooling system sensor on the AR26 vehicle, and all of the sensors include two measurements each. These two signals are water temperature and pressure. With this the temperature delta over the entire cooling system can be measured, but also the overall water flow. If the equivalent orifice of the motors, inverters and other components are known, the flow can be calculated using the orifice equation.
256 256  
257 257  
258 +(% style="font-size: 1.5em;" %)
259 +(((
260 +{{mathjax}}
261 +$$
262 +Q = C_D \cdot A_D \sqrt{\frac{2 \cdot \Delta P}{\rho}}
263 +$$
264 +{{/mathjax}}
265 +)))
266 +
267 +
268 +where:
269 +
270 +* {{mathjax}}\(Q\){{/mathjax}} = Waterflow through the equivalent orifice
271 +* {{mathjax}}\(C_D \cdot A_D\){{/mathjax}} = practical cross section of the orifice
272 +* {{mathjax}}\(\Delta P\){{/mathjax}} = Pressure difference between the two pressure sensors
273 +* {{mathjax}}\(\rho\){{/mathjax}} = Density of the cooling liquid
274 +
275 +The sensor used on the AR26 car is the [[Bosch Motorsport PST-F 1>>https://www.bosch-motorsport.de/content/downloads/Raceparts/Resources/pdf/Data%20Sheet_70496907_Pressure_Sensor_Combined_PST-F_1.pdf]] and has the following transfer function for the output voltages based on pressure and temperature.
276 +
277 +=== Pressure sensor ===
278 +
279 +The pressure sensor build into the PST-F 1 has an supply voltage of 5 volts and has a output voltage range of 0.5 to 4.5 volts. The following formula shows the pressure based on the output voltage.
280 +
281 +
282 +
258 258  = Bill of Materials =
259 259  
260 260  == Circuit Board ==