Experimental Data from an Electronic Psychrometric System for Continuous Measurement and Control of Relative Humidity in High-Humidity Environments

Description

This dataset contains the raw experimental data supporting the results reported in the associated manuscript, “Robust High-Humidity Sensing for Agricultural Automation Using a Low-Cost Electronic Psychrometer”. The dataset comprises experimental measurements obtained during HTU21D sensor calibration, psychrometer airflow characterization, comparison between the electronic psychrometer and the HTU21D sensor, mushroom cultivation experiments, and automated relative humidity control. The data include calibration measurements, air velocity measurements, paired relative humidity measurements, substrate and mushroom harvest data, and relative humidity measurements obtained during automated cultivation of Lentinula edodes. The dataset is provided in raw form, without statistical analyses, uncertainty calculations, or derived variables. Data processing and analysis procedures are described in the associated manuscript.

Steps to reproduce

The dataset was generated through laboratory and field experiments designed to characterize and validate a low-cost electronic psychrometer for relative humidity measurement under high-humidity conditions. In the laboratory stage, matched temperature sensors were used in the electronic psychrometer, together with electronically controlled forced ventilation. Airflow measurements were performed to experimentally characterize and verify the ventilation system. Sensor calibration experiments were then conducted under high-relative-humidity conditions, generating the measurements used for the metrological characterization of the system. The psychrometer measurements were subsequently compared with measurements from a reference relative-humidity sensor through paired experiments under high-humidity conditions. The resulting data were used for bias evaluation, uncertainty estimation, uncertainty propagation, and validation according to the principles of the Guide to the Expression of Uncertainty in Measurement (GUM). For field validation, the electronic psychrometer was integrated into an automated relative-humidity control system installed in a commercial mushroom cultivation chamber. Relative-humidity measurements and cultivation data were collected during the experiments with Lentinula edodes. The field data were used to evaluate the performance of the automated control strategy and its effect on mushroom productivity compared with the conventional control strategy. The deposited dataset contains the experimental measurements generated during the laboratory characterization and field validation stages. The data are provided in their raw form, together with the variables required to reproduce the analyses reported in the associated manuscript. Statistical analyses, uncertainty calculations, and derived results reported in the manuscript should be reproduced using the procedures described therein.

Categories

Funders

• Fundação de Amparo à Pesquisa do Estado de Minas Gerais

  Federal Government of Brazil

  Minas Gerais, Belo Horizonte

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