HMDSO Poisoning of UST1530 MOS Sensor

The dataset was created at the Lab for Measurement Technology (Saarland University). It consists of several characterization measurements of a UST1530 (UST Umweltsensortechnik GmBH) with 2 ppm acetone, 2 ppm carbon monoxide and 2 ppm hydrogen. Between these characterizations the sensor was exposed to 10 ppm of HMDSO (hexamethyldisiloxane) for different times and at different temperatures, which is known to be a sensor poison. An exact description of the measurement setup and its results can be found in the open access article: Schultealbert, C., Uzun, I., Baur, T., Sauerwald, T., and Schütze, A.: Siloxane treatment of metal oxide semiconductor gas sensors in temperature-cycled operation – sensitivity and selectivity, J. Sens. Sens. Syst., 9, 283–292, https://doi.org/10.5194/jsss-9-283-2020, 2020. The h5-file comprises 13 datasets, each containing 48 sensor cycles (ln(G)) with 2500 data points (@ 18 Hz). All measurements were performed consecutively with the same sensor. Gas profile: Cycles 16-20: 2 ppm carbon monoxide Cycles 25-29: 2 ppm acetone Cycles 34-38: 2 ppm hydrogen Sensor operation mode: 30 s 450 °C, 120 s 150 °C, 30 s 450 °C, 120 s 200 °C, 30 s 450 °C, 120 s 250 °C, 30 s 450 °C, 120 s 300 °C, 30 s 450 °C, 120 s 350 °C, Datasets: x_0h: Characterization before poisoning x300_3h: Characterization after 3 h at 300 °C at 11 ppm HMDSO x300_9h: Characterization after additional 6 h at 300 °C at 11 ppm HMDSO x300_12h: Characterization after additional 3 h at 300 °C at 11 ppm HMDSO x400_3h: Characterization after additional 3 h at 400 °C at 13 ppm HMDSO x400_6h: Characterization after additional 3 h at 400 °C at 13 ppm HMDSO x400_12h: Characterization after additional 6 h at 400 °C at 13 ppm HMDSO x400_24h: Characterization after additional 12 h at 400 °C at 13 ppm HMDSO x500_3h: Characterization after additional 3 h at 500 °C at 13 ppm HMDSO x500_6h: Characterization after additional 3 h at 500 °C at 13 ppm HMDSO x500_12h: Characterization after additional 6 h at 500 °C at 13 ppm HMDSO x500_24h: Characterization after additional 12 h at 500 °C at 13 ppm HMDSO x700: Characterization after additional 12 minutes at 700 °C at 2500 ppm HMDSO