Humidity control of an incubator using the microcontroller-based active humidifier system employing an ultrasonic nebulizer.

Department of Electronics and Computer Education, Faculty of Technical Education, Gazi University, Ankara, Turkey.
Journal of Medical Engineering & Technology 01/2002; 26(2):82-8. DOI: 10.1080/03091900110115478
Source: PubMed

ABSTRACT Relative humidity levels of an incubator were measured and controlled. An ultrasonic nebulizer system as an active humidifier was used to humidify the incubator environment. An integrated circuit-type humidity sensor was used to measure the humidity level of the incubator environment. Measurement and control processes were achieved by a PIC microcontroller. The high-performance and high-speed PIC provided the flexibility of the system. The developed system can be used effectively for the intensive care of newborns and/or premature babies. Since the humidifier generates an aerosol in ambient conditions, it is possible to provide the high relative humidity level for therapeutic and diagnostic purposes in medicine.

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