kPa under boosT

[Walter Sherwin]

The electrical transfer functions for a standard 1-bar MAP sensor, and a
standard 2-bar MAP sensor are as below.   You can determine the range and
response by "plugging and chugging" some numbers.  Assume Vref is nominally
5.0 volts.   You might want to also measure "your" Vref at the end of the
Vref wire nearest the sensor to account for slight wiring losses, to adjust
these equations.

If someone out there has figured out the transfer function for a 3-bar MAP
sensor (16040749), can you please send it this way.......


MAP1volts out = Vref(.01059*[Kpa] - .10941)

MAP2volts out = Vref (.00500*[Kpa] - .04000)



Walt.




>Oh, while I'm babbling - I andwered someone something based on testing and
I
>dont think I was believed..and that made me thing I may have been wrong. ..
>a 2 bar map sensor reads 0-5v based on -100 to +100 Kpa, right? (-28"Hg to
>+28" Hg?), (-14.7PSI to +14.7 PSI?).. the term is not "0 to 200 Kpa" right?
>
>okay sorry, the mind wobbles sometimes and all this stuff comes pouring
out.