Application of nano-sensors in the determination of soil moisture and temperature

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MAHDIZADEH M.; NAJAFI N.

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Journal: Journal of Land Management Year:2019 | Volume:6 | Issue:2 Page(s): 169-178

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Title

Application of nano-sensors in the determination of soil moisture and temperature

Author(s)

MAHDIZADEH M. | NAJAFI N. | Issue Writer Certificate

Keywords

Graphene quantum dots

Microelectromechanical systems

Nanosensors

Nanotechnology

Soil moisture

Soil temperature

Abstract

Nano-sensors are of extreme precision and reactivity, properties that make them delicate, precise, and sensitive instruments for identifying and responding to physical, chemical, and biological stimuli. Application of nano-sensors in agriculture and, especially in soil science, is a great help toward accurate measurement of Soil temperature and moisture. Being equipped with wireless communication systems, they are more economical, easier to use, and user-friendly than other similar instruments. Carbon nanotubes and graphene, wireless sensors, and Nanotechnology-based Microelectromechanical systems are some of the Nanosensors used in soil investigations. This review study explores the feasibility of using Nanotechnology-based, cheap, wireless devices consisting of microcantilever beams for the simultaneous measurement of Soil temperature and moisture. The system relies on the principle of shear stress for measuring water vapor, in which a micro-sensor chip is combined with a proprietary nanopolymer sensing element and the Weatstone bridge piezoresistor circuit to deliver two DC output voltages that are linearly proportional to relative humidity in the range of 0% to 100% and to temperature from ‒ 30 to 100 ° C. The Graphene quantum dots may be alternatively used to measure Soil moisture; these remain stable for about 4 months exhibiting negligible changes in their resistance with time. The response time of the sensor is quite fast (around 2– 3 minutes) and the Graphene quantum dots are found appropriate for quick and accurate measurement of Soil moisture.

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APA: Copy

MAHDIZADEH, M., & NAJAFI, N.. (2019). Application of nano-sensors in the determination of soil moisture and temperature. JOURNAL OF LAND MANAGEMENT, 6(2 ), 169-178. SID. https://sid.ir/paper/267747/en

Vancouver: Copy

MAHDIZADEH M., NAJAFI N.. Application of nano-sensors in the determination of soil moisture and temperature. JOURNAL OF LAND MANAGEMENT[Internet]. 2019;6(2 ):169-178. Available from: https://sid.ir/paper/267747/en

IEEE: Copy

M. MAHDIZADEH, and N. NAJAFI, “Application of nano-sensors in the determination of soil moisture and temperature,” JOURNAL OF LAND MANAGEMENT, vol. 6, no. 2 , pp. 169–178, 2019, [Online]. Available: https://sid.ir/paper/267747/en

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