Results 1 to 10 of about 11,381,817 (242)

Low-Cost Sensors and Biological Signals [PDF]

Sensors, 2021
Low-cost sensors, i [...]
Frédéric Dierick, Fabien Buisseret, Stéphanie Eggermont   +2 more
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Automated Low-Cost Soil Moisture Sensors: Trade-Off between Cost and Accuracy

Sensors, 2023
Automated soil moisture systems are commonly used in precision agriculture. Using low-cost sensors, the spatial extension can be maximized, but the accuracy might be reduced. In this paper, we address the trade-off between cost and accuracy comparing low-
Dimaghi Schwamback, Magnus Persson, Ronny Berndtsson, Luis Eduardo Bertotto, Alex Naoki Asato Kobayashi, Edson Cezar Wendland   +5 more
doaj   +4 more sources

Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality

Sensors, 2021
Air pollution in urban areas is a huge concern that demands an efficient air quality control to ensure health quality standards. The hotspots can be located by increasing spatial distribution of ambient air quality monitoring for which the low-cost ...
Abdul Samad, Freddy Ernesto Melchor Mimiaga, Bernd Laquai, Ulrich Vogt   +3 more
doaj   +4 more sources

Effect of Relative Humidity and Air Temperature on the Results Obtained from Low-Cost Gas Sensors for Ambient Air Quality Measurements

Sensors, 2020
Using low-cost gas sensors for air quality monitoring promises cost effective and convenient measurement systems. Nevertheless, the results obtained have a questionable quality due to different factors that can affect sensor performance.
Abdul Samad, Daniel Ricardo Obando Nuñez, Grecia Carolina Solis Castillo, Bernd Laquai, Ulrich Vogt   +4 more
doaj   +4 more sources

Laboratory Calibration and Performance Evaluation of Low-Cost Capacitive and Very Low-Cost Resistive Soil Moisture Sensors

Sensors, 2020
Soil volumetric water content ( V W C ) is a vital parameter to understand several ecohydrological and environmental processes. Its cost-effective measurement can potentially drive various technological tools to promote data-driven sustainable ...
Soham Adla, Neeraj Kumar Rai, Sri Harsha Karumanchi, Shivam Tripathi, Markus Disse, Saket Pande   +5 more
doaj   +5 more sources

Developing a Cloud-Based Air Quality Monitoring Platform Using Low-Cost Sensors [PDF]

Sensors
Conventional air quality monitoring has been traditionally carried out in a few fixed places with expensive measuring equipment. This results in sparse spatial air quality data, which do not represent the real air quality of an entire area, e.g., when ...
Abdul Samad, Joschka Kieser, Ioannis Chourdakis, Ulrich Vogt   +3 more
doaj   +2 more sources

Low-Cost Water Quality Sensors for IoT: A Systematic Review

Sensors, 2023
In many countries, water quality monitoring is limited due to the high cost of logistics and professional equipment such as multiparametric probes.
Edson Tavares de Camargo, Fabio Alexandre Spanhol, Juliano Scholz Slongo, Marcos Vinicius Rocha da Silva, Jaqueline Pazinato, Adriana Vechai de Lima Lobo, Fábio Rizental Coutinho, Felipe Walter Dafico Pfrimer, Cleber Antonio Lindino, Marcio Seiji Oyamada, Leila Droprinchinski Martins   +10 more
doaj   +3 more sources

Challenges and Opportunities in Calibrating Low-Cost Environmental Sensors

Sensors
The use of low-cost environmental sensors has gained significant attention due to their affordability and potential to intensify environmental monitoring networks.
Naga Venkata Sudha Rani Nalakurthi, Ismaila Abimbola, Tasneem Ahmed, Iulia Anton, Khurram Riaz, Qusai Ibrahim, Arghadyuti Banerjee, Ananya Tiwari, Salem Gharbia   +8 more
doaj   +3 more sources

Assessment of Low-Cost and Higher-End Soil Moisture Sensors across Various Moisture Ranges and Soil Textures

Sensors
The accuracy and unit cost of sensors are important factors for a continuous soil moisture monitoring system. This study compares the accuracy of four soil moisture sensors differing in unit costs in coarse-, fine-, and medium-textured soils.
Rajesh Nandi, Dev Shrestha
doaj   +3 more sources

Calibrating networks of low-cost air quality sensors [PDF]

Atmospheric Measurement Techniques, 2022
Ambient fine particulate matter (PM2.5) pollution is a major health risk. Networks of low-cost sensors (LCS) are increasingly being used to understand local-scale air pollution variation.
P. deSouza, P. deSouza, R. Kahn, T. Stockman, T. Stockman, W. Obermann, B. Crawford, A. Wang, J. Crooks, J. Crooks, J. Li, P. Kinney   +11 more
doaj   +1 more source