Sensores Termohigrométricos: Procedimentos para montagem e calibração

Abstract

This article presents procedures for assembly and calibration of five thermohygrometric sensors, which were developed for measurement and studies in urban environments, specifically in mobile transect used in doctoral thesis research. The sensors used in this research were the DHT22 model (measure the air temperature and the relative humidity of the air). The datalogger was programmed on a Raspberry Pi 3 microcontroller. Observing the need for calibration, the sensors were registered in the same settings and environmental conditions as the standard sensor (HOBO U12-012). Statistical analyzes (multiple comparisons) were performed, which included the real need for the calibration of the five sensors. It was concluded that the thermo-hygrometer made in this work, after being calibrated, presented reliable and good quality measurements. And that the methodology proved to be efficient and reliable for the development and calibration of the sensors used, contributing to other studies related to the measurements of microclimatological variables being used and used.