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Need help about RPM Sensor in automotive

Discussion in 'Sensors and Actuators' started by Meisam, Apr 22, 2015.

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  1. Meisam

    Meisam

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    Apr 22, 2015
    Hi all,
    How to i can analysis the RPM sensor signal (effect hall) with an microcontroller and show it. Please tell me method of proccess data.
    Thanks great
     
  2. hevans1944

    hevans1944 Hop - AC8NS

    4,322
    2,029
    Jun 21, 2012
    Do you suppose three successive posts will yield triple the number of responses?

    Just signal-condition the Hall effect RPM sensor to CMOS logic levels and feed it to a digital input bit on a CMOS microcontroller. Then roll a little code to measure the time between pulses and send it back out to whatever display suits your fancy. If you don't have a fancy, more information is necessary before we can tell you a "method to process data."
     
    Arouse1973 likes this.
  3. Meisam

    Meisam

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    Apr 22, 2015
    Thaks, you're right.
    after measure the time between pulses, What should I do?
     
  4. Arouse1973

    Arouse1973 Adam

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    Dec 18, 2013
    Do you want to do this with logic gates and maybe some seven segment displays or using a microprocessor?
    Adam
     
  5. Meisam

    Meisam

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    Apr 22, 2015
    Yes. Showing RPM in 7-SEG or CharLCD.
     
  6. Arouse1973

    Arouse1973 Adam

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    Dec 18, 2013
    And the other question? Micro or Digital logic?
     
  7. Meisam

    Meisam

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    Apr 22, 2015
    with PIC or AVR microcontroller
    [​IMG]
     
  8. Arouse1973

    Arouse1973 Adam

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    Dec 18, 2013
    What work have you done so far? You need to choose a processor that you want to use. Then think about the sensing circuitry, Hop @hevans1944 gave you an idea in his post above. Once you have done this we can fill in the gaps for you if you have forgotten anything.

    You could have ago at drawing a circuit diagram unless you already have one,there are plenty of free circuit diagram packages out there. I can recommend DIP-TRACE but you may already have one. You will need to also supply details of the sensor and any pictures of the setup you have. Additional information like max RPM and any power requirements like current consumption and power supply voltages.

    Tell us more about your project, your introduction was very short.

    Thanks
    Adam
     
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