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Subject: Re: Looking for way to measure vacuum in sealed chamber

Date: 07/31/03 at 9:04 AM
Posted by: Jim Armstrong
E-mail: ppa2@nauticom.net
Message Posted:

In Reply to: Looking for way to measure vacuum in sealed chamber posted by John Leon on 07/16/03 at 9:43 AM:

You know you're not the first guy with this problem. There are no cheap, easy answers. How big is the vessel? What pressure do you need to read? What's the vessel made of? Are there electrical feedthroughs and/or can we add some for a gage? How much is it worth to you? Instead of helium you could bomb the part with a radioisotope and then see if any of the isotope got inside your vessel. I haven't a clue as to actually go about this process though.


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