Applications of Machine Olfaction - The Electronic Nose Artificial Olfaction Technology - page 234

Pin no.1 & 3 V C - 24V (Max.)

Pin No.2 V H (Heater Voltage) - 5.0±0.2V

Pin No. 5 Gnd (Circuit Voltage)

Pin No. 4 & 6 V RL (Load resistance)

variable 0.45K (Min.)

Fig. 8.15 Alcohol breath sensor [ 47 ]

Preheating period before testing: More than 7 days
Sensor Resistance (Rs) is calculated by the following formula:

R s ¼ V c = V RL 1

ð Þ R L

Power dissipation across sensor electrodes (P s ) is calculated by the following
formula:

P s ¼ V C 2 R S
ð R S þ R L Þ 2