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Oil level monitoring project using capacitance level sensor

Discussion in 'Sensors and Actuators' started by Russfireball, Mar 26, 2013.

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  1. Russfireball

    Russfireball

    2
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    Mar 25, 2013
    good afternoon all

    As you Can see i am new to this forum so go easy on me!

    I am currently in the process of designing a project for an oil tank level monitoring system using a capacitance level sensor. The level sensor provides a continuous variable voltage output between 0-5v. (5v tank full 0v tank empty). i need to use a circuit to sound an alarm when the oil level in the tank stops dropping, so in other words when the voltage level remains constant for a certain amount of time. can anyone shed any light on an IC capable of this?

    Russ
     
  2. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    652
    May 8, 2012
    Welcome to EP Russ,

    I'm assuming this is a large tank. So, I'm also assuming that this voltage drops very slowly. How long does the alarm delay have to be? A 555 timer works well for short delays measured in seconds. Longer delays and freedom of how to sense this is best performed by a programmable microcontroller chip.

    If this is an industrial project or beyond your abilities we have a member CocaCola.... yes that's his real name! :p Anyway if you and he have a meeting of the mind$ he will design, program and and build it for you. ;)

    Chris
     
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