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Thread: MPE calculations made easy

  1. #1
    Join Date
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    Laser Warning MPE calculations made easy

    I have made a easy to use calculator so you can calculate the MPE of your show.

    With this tool there is no real need of a expensive sensitive powermeter, you only need the power of you laser and some measuring of the beam

    The calculator is made in Microsoft Exel, but also seems the work in openoffice.

    I can and will not be held responsible for any of the calculations or information from this calculator.

    Have fun with it and if you like it please post a thanks.





    I decided to remove the file for now because I have the feeling people are trying to make money from this idea.

    Sorry guys.
    Last edited by mccarrot; 07-19-2011 at 13:45.

  2. #2
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    Thats is excellent - thank you.

  3. #3
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    Cheers M, I've been meaning to do another one of these for ages
    http://img62.imageshack.us/img62/3985/laser.gif

    Doc's website

    The Health and Safety Act 1971

    Recklessly interfering with Darwins natural selection process, thereby extending the life cycle of dim-witted ignorami; thus perpetuating and magnifying the danger to us all, by enabling them to breed and walk amongst us, our children and loved ones.





  4. #4
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    WOW! Very impressive my friend. Nice work!

  5. #5
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    Nice work :-)

    Now, I don't want to p*ss on your bonfire, but this may be a good time to remind those of us in the UK that the <easier> 10xMPE calculations are not accepted in the UK (as yet).

    Health and safety laws in the UK are pretty stringent and whilst it's nice for us to use simplified rules there is nothing written in statute (as far as I know) that allows one to use these calculations.

    It would be nice if one of our 'Guru's' could perhaps pop in at this point and clarify matters.
    Quote: "There is a theory which states that if ever, for any reason, anyone discovers what exactly the Universe is for and why it is here it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another that states that this has already happened.... Douglas Adams 1952 - 2001

  6. #6
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    Quote Originally Posted by Jem View Post
    Now, I don't want to p*ss on your bonfire, but this may be a good time to remind those of us in the UK that the <easier> 10xMPE calculations are not accepted in the UK (as yet).
    This is not the simplified method, this is the real calculations method.
    and 10x MPE is an option, if you enable it will give you a clear warning.
    Have you tested the tool before giving this reaction?

  7. #7
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    What reaction? I am simply stating a point of fact to save anyone in the UK falling foul of HSE law.

    And no, I haven't checked it out yet. As I said... Nice work ;-)
    Quote: "There is a theory which states that if ever, for any reason, anyone discovers what exactly the Universe is for and why it is here it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another that states that this has already happened.... Douglas Adams 1952 - 2001

  8. #8
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    Excellent work Maurice, thanks for sharing!!
    Myself did too an Excel document which calculate (approximate) how much I have to decrease beam power in the beam attenuation map according to different distance to audience, but this one is much more complete.

  9. #9
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    How do you calculate pulse time and repeat rate? I'd have thought you'd have needed a fast sensor and an oscillosope or is there another way.

  10. #10
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    Quote Originally Posted by White-Light View Post
    How do you calculate pulse time and repeat rate? I'd have thought you'd have needed a fast sensor and an oscillosope or is there another way.
    If you hover with your mouse over this field it will give you a explanation...

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