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High Sensitive Soil Moisture Sensors And Automatic Watering System For Irrigation

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High Sensitive Soil-Moisture Sensors and Automatic Watering System for Irrigation
Navin Kumar H A1, Nagendra G L1, bhaskar k2, Prakash Kodali1
1Instrumentation and applied physics
Indian Institute of Science
Bangalore-560012 -India kprakash@iap.iisc.ernet.in 2DLRL LABS
DRDO
Hyderabad-India gmail@gmail.com Abstract—Soil-Moisture sensing and automated system is an automatically water releasing system in agriculture and green house area. Here in this paper, it proposes the new structures of sensors for high sensitivity and three types of moisture level indication systems which can be easily used in fields to save the power and crop. The performance comparison made for homemade sensors and readily available sensors, sensitivity improved to the homemade sensors. The high sensitivity and consistency achieved by tin coating to the sensor electrodes. The system monitors the land moisture every time and maintains the fixed water levels by turning on and off the water motor. According to the security aspects and repeatability it is good. Its implementation is easy and low cost for affording the system
Index Terms—Sensors, signal conditioning system, sensitivity power management etc,
I. INTRODUCTION
A sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an (today mostly electronic) instrument. We have so many types of sensors in that soil moisture sensor are the one which measures water content present in

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