48
tinb21e1 (2016-06)
using the non-linear or the log-linear analog output. An analog
output of less than 0.01 volts to near 0 volt indicates a damaged
or faulty sensor.
7.1 Non-Linear
Analog
Output
0.375 to 5.659 V, Torr / mTorr
You may calculate the N
2
/air pressure represented by the
0.375
to 5.659 V
non-linear analog output voltage for the "S-curve"
using a multi-segment, n
th
order polynomial function calculation.
The coefficients for the n
th
order polynomial equation defined for
various pressure measurement ranges are given in the following
table:
For Non-Linear Analog Output voltage range of
0.375 to
2.842 volts
, use this table.
Coefficients for
y(x) = a + bx + cx
2
+ dx
3
+ ex
4
+fx
5
a -0.02585
b 0.03767
c 0.04563
d 0.1151
e -0.04158
f 0.008738
For Non-Linear Analog Output voltage range of
2.842 to
4.945 volts
, use this table.
Coefficients for
=
a 0.1031
b -0.3986
c -0.02322
d 0.07438
e 0.07229
f -0.006866
Содержание PGE500
Страница 83: ...tinb21e1 2016 06 83 Notes...
