Geologia


Blog per la geologia

Richieste, commenti e idee sono benvenute.

  1. Marcin says:

    Thank You for Your respond.
    Yes, I would to use Your solution.
    1. Proper power supply – dual polarity symmetrical power supply + /-12v correct?
    2. please help me calculate the three resistors of the divider to limit voltage of the output signal to 3,3V
    3. How to calculate proper resistor which need to be connected between the 12 volts?.
    4.OK

    Best Regards,

    • Livio says:

      Rispondo in italiano perché mi viene più facile. Hai trovato difficoltà a tradurre il mio messaggio?

      Riguardo al partitore, eccolo qui:
      https://www.theremino.com/images/Adapter_12-bipolar_to_3.3-single.jpg

      Se userai gli ADC del Master fai attenzione che, superando 0.3 volt negativi, o 3.6 volt positivi, la comunicazione con l’USB potrebbe interrompersi. Non si rompe niente ma potrebbe essere un fastidioso problema. Invece l’Adc24 e il NetModule sono più tolleranti.

  2. Marcin says:

    Thank You for quick answer.
    Message is clear for me – google translator works well:)
    I would to use ADC24 module to get maximum resolution.

    summarizing:
    > connect power supply +12(D) -12(E); GND -Power COM.(C) to my geophone
    > connect geophone to voltage divider
    velocity signal output(A) 12v -to V1,V2
    signal COM. (B) – to V1,V2
    >connect voltage divider output ADC to Pin signal 1 of ADC24 module ;
    geophone signal COM. (B) – to Pin Ref. 1 of ADC24 module ;
    >connect ADC24 module to Master module acc. to ADC24 manual
    >All cables shielded.

    Please corect me if something is missing or misanderstooded.
    Thank You for help.
    Best Regards,

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