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Magnetostrictive Level Sensor

Erwin Y
Prodigy 30 points
Other Parts Discussed in Thread: TIDA-00317, DRV5055-Q1

I want to know the height of fuel and water in the underground tank using magnetostrictive level sensor. Does TI have reference design for magnetostrictive level sensor?  Thanks

  • 0
    TI__Genius 14825 points
    Erwin,

    Would something like TIDA-00317 (Capacitive-Based Liquid Level Sensing Sensor Reference Design) help you?
  • 0 in reply to Jason Bridgmon
    Prodigy 30 points
    Is the Capacitive sensor safe to use in fuel liquids such as gasoline, diesel/oil in underground tank of petrol station?
    Is the Capacitive sensor detect the presence of water under the fuel fluids?
    Thank You.
  • 0 in reply to Erwin Y
    TI__Genius 14825 points
    Erwin,
    Those specific answers, I don't have - I can say that TI has parts that go in commercial applications like consumer electronics to automotive applications and on up to satellites in space.

    Perhaps you were thinking you just wanted a mechanical float in a tank and would measure the deflection with a linear hall sensor of some kind, rather than submerge the circuitboard in gasoline? If so, you might consider the DRV5055-Q1. It's our latest linear hall sensor, analog output, that can sit outside a gas tank (or whatever) and measure the proximity of a magnet to the IC in one axis. Perhaps something like this would interest you?
  • 0 in reply to Jason Bridgmon
    Prodigy 30 points

    Brother,


    You are right, I am worried about using "Capacitive-Based Liquid Level Sensing Sensor" in the explosive area because the electrode of sensor is in direct contact with the fuel, and if there is a little spark it will result in an explosion. Wire, nail or other small metals that accidentally enter the tank during the charging process, will trigger a spark?

    I've tried using "Hall Effect Sensor", the constraint is the accuracy of the measurement results that are affected from the temperature. The temperature change will change the output voltage of the sensor, so it will affect the accuracy of the measurement results.

    "Magnetostrictive level sensor" I think is the best choice, sending current-pulse to magnetostrictive wire and reading the return pulse. The pulse will be back when it comes to a magnet-float. 

    Thank You.