(ROFLMAO) Yes, that would be a pretty safe statement. Your deadpan humor is appreciated. -- Lawrence Lile, P.E. > -----Original Message----- > From: Bill & Pookie [mailto:reddx@comcast.net] > Sent: Sunday, October 31, 2004 8:54 AM > To: Microcontroller discussion list - Public. > Subject: Re: [OT:] PIC-based thermal airspeed meter > > Is it then safe to say that a thermal airspeed meter will not be accurate > in > a vacuum unless pressure is taken into account? > > Bill > > ----- Original Message ----- > From: "Olin Lathrop" > To: "Microcontroller discussion list - Public." > Sent: Friday, October 29, 2004 7:39 AM > Subject: Re: [PIC:] PIC-based thermal airspeed meter > > > > Ward, David wrote: > > > The temperature gradient isn't a big problem as the proposed method > > > compares the temperature of two sensors, one of which is in the > > > airstream. > > > It's the cooling effect of the airstream that is being measured > > > > Yes, but this does vary with pressure. Think of the limiting case where > you > > have a vacuum, which doesn't cool at all. > > > > > > ***************************************************************** > > Embed Inc, embedded system specialists in Littleton Massachusetts > > (978) 742-9014, http://www.embedinc.com > > > > _______________________________________________ > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.762 / Virus Database: 510 - Release Date: 9/13/2004 > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.762 / Virus Database: 510 - Release Date: 9/13/2004 _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist