marcio@visioncure.com.br
Guest
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 Posted:
Sun Nov 07, 2004 4:31 am Post subject:
Argon in ultraviolet medium pressure mercury lamps |
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Hello!
I am researching medium pressure mercury lamps for uv curing process.
I have information about voltage, current, arc lenght, bulb
dimensions, power, and amount of mercury, as well.
I know that these lamps are filled with a very small amount of argon
(or other rare gas) in order to start the arc at room temperature and
lower voltages.
But I do not know how to calculate this "small" amount of argon. I
know this amount is less than 20 milimeters of Hg (20 Torr) and about
4-10% of the total pressure of mercury filled in the bulb.
If someone can help me in order to determinate this amount of argon I
would apreciate. If someone need my help in subjects relationed to
ultraviolet technology please send me a message.
Best Regards,
Mr.Marcio Moraes
email : marcio@visioncure.com.br or kayalla@bol.com.br
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Posted at:
www.GroupSrv.com
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Robert Baer
Guest
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| Posted:
Sun Nov 07, 2004 12:50 pm Post subject:
Re: Argon in ultraviolet medium pressure mercury lamps |
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"marcio@visioncure.com.br" wrote:
| Quote: |
Hello!
I am researching medium pressure mercury lamps for uv curing process.
I have information about voltage, current, arc lenght, bulb
dimensions, power, and amount of mercury, as well.
I know that these lamps are filled with a very small amount of argon
(or other rare gas) in order to start the arc at room temperature and
lower voltages.
But I do not know how to calculate this "small" amount of argon. I
know this amount is less than 20 milimeters of Hg (20 Torr) and about
4-10% of the total pressure of mercury filled in the bulb.
If someone can help me in order to determinate this amount of argon I
would apreciate. If someone need my help in subjects relationed to
ultraviolet technology please send me a message.
Best Regards,
Mr.Marcio Moraes
email : marcio@visioncure.com.br or kayalla@bol.com.br
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
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Perhaps one could look at the intensity of the various spectral lines.
The part that helps, is that the spectral lines are unique to each
element (gas).
Perhaps, at a given (fixed) excitation (current thru the ions), the
intensity ratios of an Argon line to a Mercury line is related to the
concentration ratio?
I ad mit i am guessing, but it is a possible avenue - and if not, may
give you other ideas... |
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