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'''Pressure-sensor tests''' I have some oil-pressure sensors, and plan to use them as oil/fuel/water/ebp... sensors. http://www.bmwpower.hu/gallery/albums/userpics/10444/pict0720.jpg (still seek for such connectors) These are VDO 360.081/061/006 units, 0-10bar range. ---- There's not much data on the web but this table: mBar Resistenza (Ohms) 0 10 2000 51 4000 86 5000 104 6000 122 8000 152 10000 180 I'm affraid these are NOT datasheet-numbers, but some home-measurement instead. ---- I've put together some nice excel-sheet to calculate it's characteristics: http://quasar.dynaweb.hu/~lezsi/vems/vdo-calc.gif [http://quasar.dynaweb.hu/~lezsi/vems/vdo-characteristics.xls XLS] Tried to keep it simple using linear approximation, this way i was able to code it to megatune ini also. Took some measures with my "professional" benchpad: http://quasar.dynaweb.hu/~lezsi/vems/pressure_sensor_test.jpg I've got slightly lower pressures than reality (-0.1, -0.2bar at free air). Gauge is flickering, jumps to even -0.4 bars. -Played around with series resistor values but couldn't make it better. At 1.5+ bars it seems to get stable, and maybe closer to real-life, but couldn't get real numbers without calibrated reference. I'm not sure what accuracy can be expected from such sensors.
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