Intake Air Temperature

[Ord Millar]

Depends on required accuracy... I like national LM34DZ - it outputs
10mV/degree F, doesn't require a fancy power supply, or any circuitry on the
output, and they're cheap.  They are good to around 1 celcius.

Instantaneous is impossible, but with carefull design you should be able to
get 15 second response from a semiconductor, RTD or TC in a fast flowing air
stream.  Be carefull with leads - this is one big source of error and delay.
Keep the wires a fine as possible so they don't conduct hear to or away from
the sensor.


-----Original Message-----
From: Aaron Willis <darkmonahue at awwwsome.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, May 29, 1999 3:43 PM
Subject: Intake Air Temperature


>
> Anybody have any suggestions on how I can accurately and instantaneously
>measure intake air temperature?  I have had home thermometers suggested,
>but have to question their accuracy and ability to respond quickly.  Bear
>in mind I am NOT yet running EFI, and may not be for some time...so any
>suggestions y'all can provide will help most if they work as stand-alone
>systems.
> Aaron Willis
> ICQ #27386985
> AOL IM: hemiyota
> http://surf.to/garage-te51 Garage TE51 International
>