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Lets Build A Proton Magnetometer! I Need Everyones Input!

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  • Lets Build A Proton Magnetometer! I Need Everyones Input!

    Tod and anyone else,


    What frequency are you guys interested in?


    Patrick

  • #2
    Re: Materials for transducers

    Patrick,


    I like closer range, finer detail. I work in 30 to 80 feet of water. I like 500 Khz. Bob I think likes 250.

    Comment


    • #3
      Re: Materials for transducers

      Tod,


      I don't think the depth matters all that much (just need longer cable). Sture found the sub with a "500 Khz" and I thought that was around 150'.


      Depths I am interested in range from 30' to 300'.


      Personally, I think that the 250 Khz might be a real nice tradeoff between the detail of a 500 and the range of a 100. I just wonder why I have not seen any commercial units with a "250" or similar?


      Sture ... do you think that you will get that much better detail in a "500" vs. a "250"?


      Patrick

      Comment


      • #4
        Re: Materials for transducers

        I went back to look at Sture's prior e-mail on this subject ...


        "200K I got a range of 200 meters, good signal level and ok resolution."


        "500K good resolution and 100 m range."


        To me, it looks like Sture did not notice that much better resolution on the 500. The extra range is much nicer to have and will cut your "passes" in half. Also, Sture seems to have tested the whole range and felt that the 200 or 250 would be ideal.


        Tod, why do you feel the 500 Khz is more appropriate?


        Patrick

        Comment


        • #5
          Re: Answer for Rick

          Follow Ups:[/url]

          Comment


          • #6
            Re: Answer for Rick

            Follow Ups:[/url]

            Comment


            • #7
              Re: Answer for Rick

              Follow Ups:[/url]

              Comment


              • #8
                Re: Ideomotor response

                Follow Ups:[/url]

                Comment


                • #9
                  Re: Ideomotor response

                  Follow Ups:[/url]

                  Comment


                  • #10
                    Re: Ideomotor response

                    Follow Ups:[/url]

                    Comment


                    • #11
                      Re: Does anyone have a good sub for the LM389?

                      Follow Ups:[/url]

                      Comment


                      • #12
                        Re: Does anyone have a good sub for the LM389?

                        Follow Ups:[/url]

                        Comment


                        • #13
                          Re: Does anyone have a good sub for the LM389?

                          Follow Ups:[/url]

                          Comment


                          • #14
                            Re: Does anyone have a good sub for the LM389?

                            Follow Ups:[/url]

                            Comment


                            • #15
                              Re: Does anyone have a good sub for the LM389?

                              Follow Ups:[/url]

                              Comment

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