Arduino Vacuum Gauge Sensor

Initial build used a 10k pot in place of a vacuum gauge to make it simpler.

Arduino vacuum gauge sensor.

At one point in the process it needs to determine the level of vacuum in a chamber and adjust it to within a range of values. Ignore the humidity sensor that was for something else. Thakur definition pressure is defined as force per unit area that a fluid exerts on its surroundings. With 0 kpa vacuum on th port the signal out to the arduino would be about 4 96 vdc.

It outputs a temperature compensated analog voltage that is proportional to an absolute pressure. 3 0 out of 5. Sensore pressione md ps002 vacuum sensor absolute pressure senso for arduino. At 50 kpa that signal is about 4 95 vdc so it would be 90 mv per kpa.

Force sensitive resistor thin film pressure sensor md30 60 0 30kg diameter 30mm resistance type thin film pressure sensor force sensing resistor. Link to my website for diagrams code and resources to recreate my experiments. That makes the math in the arduino sketch so easy. Sensore pressione md ps002 vacuum sensor pressure sensor for arduino.

I need a sensor that can be reasonably accurate down to roughly 28 inches mercury and would connect by a tube. May 13 2016 arduino tutorials air arduino code measurement meter mpx5010dp pressure sensor manoj r. This had to be changed to a 0 5vdc range using a potential divider so it was compatible with the arduino. It has a measuring range of 2 9 psi to 36 3 psi absolute.

The digital vacuum gauge is based on the mpxh6250a pressure sensor by freescale. The oled screen. The vacuum gauge outputs 0 10vdc.