Abstract:Recebido em 4/4/13; aceito em 1/7/13; publicado na web em 9/8/13 PORTABLE GAS DATA LOGGER BASED ON TEMPERATURE MODULATION OF A SINGLE MOS COMMERCIAL SENSOR. A simple, portable and low-cost system for odor detection was developed using a single MOS commercial sensor and a microcontroller. The temperature modulation technique was implemented applying a DC signal pulse to the sensor heater by a bipolar transistor. Two odorant profiles, ethanol and acetic acid vapors, were obtained and distinguished based on their… Show more
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