A small jelly/jam jar and a plastic syringe can build a small unit that is capable of pullinga partial pressure equivalent to a few thousand of feet of altitude. The syringe markings can providerelative indication of the partial vacuum. Also automotive stores are stocking hand vacuum pumps with gauge a reasonable price. Both approaches have been useful additions to the test benchGeorge Shaiffer
> From: sebastien_...@hotmail.com > To: kei...@keithp.com; altusmetrum@lists.gag.com > Date: Tue, 24 May 2016 18:24:40 -0400 > Subject: Re: [altusmetrum] TeleSubmarine! > > Thank for the answer, > > The barometric chamber is a great idea but as i don't have access to one. > It look like that buying another 10$ sensor and swap-it with hot air > preventively will be easier/cheaper. > > Just wondering, do you know if the firmware have a "self-test" mode > available? My initial idea was to carry the repaired telemega inside another > rocket payload bay to test it but maybe you have a better procedure? > > > -----Message d'origine----- > From: Keith Packard > Sent: Tuesday, May 24, 2016 5:44 PM > To: sebastien_lec ; altusmetrum@lists.gag.com > Subject: Re: [altusmetrum] TeleSubmarine! > > _______________________________________________ > altusmetrum mailing list > altusmetrum@lists.gag.com > http://lists.gag.com/mailman/listinfo/altusmetrum
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