Study on automatic water level detection process using ultrasonic sensor

Process Monitoring Using Optical Ultrasonic Wave Detection

Certain microstructural features of materials, such as grain size in metals, porosity in ceramics, and structural phase compositions, are important for determining mechanical properties. Many of these microstructural features have been characterized by ultrasonic wave propagation measurements, such as wave velocity and attenuation. Real-time monitoring of ultrasonic wave propagation during the ...

Ultrasonic Sensor for Photoresist Process Monitoring

An ultrasonic sensor has been developed to monitor photoresist processing in situ during semiconductor manufacturing. Photoresist development, pre-exposure bake, and postexposure bake were monitored for the Shipley 1800 series I-line resists, and the pre-exposure bake of Shipley APEX-E deep-uv (DUV) resist was monitored as well. Development monitoring was achieved by measuring thickness changes...

Medical Liquid-level applications with enhanced capacitive sensor technology Accurate, automatic point level detection

Monitoring Water Level in Agriculture Using Sensor Networks

Recent advances in communications technology and wireless sensor networks made new trends to emerge in agriculture sector. One such new trend is Precision Agriculture. In this paper we are giving brief outline of using Wireless Sensor Networks (WSN) in Monitoring water level in the farm area for Precision Agriculture. This algorithm offers a maximum opportunity of delivery of water level inform...

Monitoring and sensor fault detection in a waste-water treatment process based on a fuzzy model

In this paper, monitoring and sensor fault detection in a waste-water treatment process are discussed. Monitoring is based on the Takagi-Sugeno fuzzy model of a plant process obtained by using Gustafson-Kessel fuzzy clustering algorithm.The paper also explains the principle of the Takagi-Sugeno fuzzy model. The main idea is to cope with the non-linearity of a monitored process. The output of th...