Teledyne 3000PB - Bulkhead mount percent oxygen analyzer - Manual (Page 24)

2-8
2 Operational Theory Model 3000PB
Teledyne Analytical Instruments
Figure 2-5: Block Diagram of the Model 3000PB Electronics
In the presence of oxygen the cell generates a current. A current to
voltage amplifier converts this current to a voltage, and then the voltage is
amplified in the second stage amplifier.
The second stage amplifier also supplies temperature compensation for
the oxygen sensor output. This amplifier circuit incorporates a thermistor,
which is physically located in the cell block. The thermistor is a temperature