Fast Detection of TCA in Cork Stoppers by Means of Electronic Noses

This article discusses the use of a miniaturized wireless sensor module to obtain information on the presence of some undesirable gases in cork stoppers, such as chloroanisoles, principally 2,4,6-trichloroanisole (TCA). The proposed prototype has been developed as an instrumentation system with different digital commercial gas sensors (BME680 from Bosch Sensortech, CCS811 from Cambridge CMOS (ams), iAQ-Core from AppliedSensors (ams) and SGP30 from Sensirion). The architecture of the system is based mainly on the use of a microcontroller, a bluetooth module and UART serial port for communications, a power supply and a battery charger. The use of this system tries to improve the current TCA detection process in the cork industry, which is done by gas chromatography.