Applications of Machine Olfaction - The Electronic Nose Artificial Olfaction Technology - page 236

Fig. 8.17 Front panel of Lab VIEW for result display

8.2.4 Conclusion

The E-nose design has a wide area of application. But as the sensors used take a
good amount of time and preheating (i.e., TGS Sensor required preheating period
before testing for more than 7 days) to give stable output. Also, it was quite
difficult to calibrate the sensor (i.e., MQ3 sensor sensitivity is different to various
kinds and various concentrations of gases, so sensitivity adjustment is necessary).
Finally, after repeated testing of the sensor, with fine calibration of the system,
reliable and accurate results can be obtained.

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