Capteurs de température et d'humidité du sol

Les capteurs de température et d'humidité du sol sont des appareils utilisés pour mesurer la température interne et le taux d'humidité du sol. Souvent enfouis dans le sol, ces capteurs aident les agriculteurs, les horticulteurs et les chercheurs à mieux gérer les sols et les cultures en surveillant les variations de température et d'humidité du sol en temps réel.

Les capteurs de température du sol permettent de déterminer la répartition de la température du sol, un élément essentiel à la croissance des cultures, à l'application d'engrais et à la gestion de l'irrigation. Les capteurs d'humidité, quant à eux, permettent de surveiller l'évolution de la teneur en eau du sol et de guider le calendrier et la quantité d'irrigation afin de garantir un apport d'eau adéquat aux cultures.

Les données de ces capteurs peuvent être utilisées pour automatiser la surveillance et la gestion des sols en les connectant à un système d'acquisition de données ou à un système de contrôle automatisé, augmentant ainsi la productivité et réduisant le gaspillage des ressources. Les capteurs de température et d'humidité du sol ont de nombreuses applications en agriculture, en horticulture et en pédologie.

Pourquoi avez-vous besoin de capteurs de température et d’humidité du sol ?

Soil moisture is also vital for plant growth. It is the main source of water for plants, and sufficient moisture is necessary for root development and nutrient uptake. Different plants have different optimum soil temperatures for germination, growth and flowering. By monitoring soil temperatures, farmers and gardeners can determine the best time to sow or transplant plants.

Monitoring soil moisture levels can help farmers and gardeners decide when to irrigate and how much water to apply. This prevents over- and under-watering, which can lead to poor plant growth and reduced yields.

TDR (Time Domain Reflectometry) Soil Temperature and Moisture Sensor is a technology used to measure soil properties.TDR works by sending electrical pulses through a cable buried in the soil. The pulse travels through the soil at a known speed and the time it takes for the pulse to reflect back to the sensor is measured. By analysing the time taken for the pulse to travel through the soil, and the strength of the reflected signal, the TDR sensor can determine the soil's dielectric constant, which is a function of temperature and moisture content.

The dielectric constant of the soil is highly dependent on the moisture content and temperature of the soil. The dielectric constant is higher when the soil is wet and changes as the temperature changes. By calibrating the TDR sensor under known soil conditions, the moisture content and temperature of the soil can be accurately determined.

TDR soil temperature and moisture sensors are known for their ability to provide accurate and reliable measurements in a wide range of soil conditions, including varying moisture levels and temperatures. They are also durable and can remain in the ground for long periods of time, making them suitable for long-term monitoring studies.

One of the benefits of TDR soil temperature and moisture sensors is that they can be used in a variety of applications, including agriculture, forestry, environmental monitoring and geotechnical engineering. In agriculture, TDR soil temperature and moisture sensors can help farmers optimise irrigation schedules and manage water resources more efficiently. In environmental monitoring, they can be used to study the effects of the hydrological cycle and climate change on soil moisture. In geotechnical engineering, TDRs can be used to monitor the moisture content of soil in construction projects to ensure stability and prevent problems such as settlement or liquefaction.

Overall, TDR soil temperature and moisture sensors provide valuable information for managing and understanding soil conditions, soil temperature and moisture sensors are valuable tools for anyone involved in growing plants or managing land. They provide important information for maintaining optimal soil conditions and promoting healthy plant growth.

Fiche technique du capteur de température et d'humidité du sol

NBL-S-THR-Capteurs-de-température-et-d'humidité-du-sol-Manuel-d'instructions-V4.0.pdf