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Ultrasonic transmitter

Discussion in 'Datasheets, Manuals and Component Identification' started by Nabla1, Feb 20, 2012.

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  1. Nabla1

    Nabla1

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    Feb 20, 2012
    Hi, I want to use this transmitter as part of a project:

    http://www.ehag.ch/PDF-Files/MSI/40khz_transmitter.pdf

    In the specifications I don't understand what is Vp for the voltage. I assume it is mV, but it doen't say.

    I want to know how much output I will get for a given input voltage.

    Once I know how much power a certain voltage gives, I can calculate range using calculations for attenuation etc.

    Could someone help me out?

    All specs are on the 1st page

    Thanks.
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    I would assume volts
     
  3. duke37

    duke37

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    Jan 9, 2011
    Looking at the data sheet and the drive circuit, I think that Vp is the peak voltage (in volts) to be applied to the transducer. The specification gives output for a given input.
     
  4. Nabla1

    Nabla1

    9
    0
    Feb 20, 2012
    Oh ok, so it is Volts not Millivolts?

    So 300V max for burst drive, and 150V max for continuous, I would put across the input to the transducer?
     
  5. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Yep, sounds right.

    Not sure if it's RMS, peak, peak to peak, or something different.
     
  6. Nabla1

    Nabla1

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    0
    Feb 20, 2012
    Thanks, peak voltage then I guess, otherwise the subscript would be pp or rms.
     
  7. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    I'd agree with that.
     
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