COMPENSATED 
CURVE 
Ta 
rl) 
Figure A2. New compensation method 
The procedure recommended here is as follows. Plot the 
calibration curve 7 (7) for a group of thermistor beads. Most of 
them will be nearly parallel; reject those which are not. Put 
only a resistor, },, in series with the thermistor bead for which 
the calibration curve (curve 1) is the steepest, and put only a re- 
sistor, d,, in parallel with the thermistor bead whose calibration 
curve (curve 7) lies farthest to the right. Choose 0, and a, 
such that the net resistance of the two circuits are equal at 7, and 
I tho Ga'y 
- 
Deo ee (A4) 
¥ 
esses (A5) 
35 
