A Wireless, Passive Embedded Sensor for Real-Time Monitoring of Water Content in Civil Engineering Materials

2008 ◽  
Vol 8 (12) ◽  
pp. 2053-2058 ◽  
Author(s):  
Justin B. Ong ◽  
Zhanping You ◽  
Julian Mills-Beale ◽  
Ee Lim Tan ◽  
Brandon D. Pereles ◽  
...  
Keyword(s):  
Water Content ◽  
Real Time ◽  
Civil Engineering ◽  
Real Time Monitoring ◽  
Engineering Materials

Microwave sensors for the non-invasive monitoring of industrial and medical applications

Sensor Review ◽  
2014 ◽  
Vol 34 (2) ◽  
pp. 182-191 ◽  
Author(s):  
O. Korostynska ◽  
A. Mason ◽  
A. Al-Shamma'a
Keyword(s):  
Water Content ◽  
Real Time ◽  
Microwave Cavity ◽  
Fluid Composition ◽  
Healthcare Industry ◽  
Real Time Monitoring ◽  
Content Type ◽  
Non Invasive ◽  
Multiphase Fluid

Purpose – This paper aims to discuss the general principles behind the microwave sensing and demonstrates the potential of cavity microwave resonator device in real-time monitoring for: environmental monitoring with the focus on wastewater pollution, a system for oil/gas/water content evaluation in a dynamic pipeline, a system for real-time determination of bacteria concentration and a method for non-invasive glucose determination. Design/methodology/approach – Microwave sensing is a rapidly developing technology which has been successfully used for various industrial applications including water level measurements, material moisture content, in construction industry for non-invasive evaluation of structures and even in the healthcare industry for non-invasive real-time monitoring of glucose in diabetic patients. Novel microwave cavities designed and tested for specific applications are presented. Findings – The paper provides experimental results of testing the novel microwave sensing systems in a range of industrial and healthcare applications and discusses the potential of these systems for real-time monitoring of processes and parameters. Research limitations/implications – The concept of real-time microwave sensing was successfully tested, but further experiments are required to account for possible interference mechanisms before it can be used commercially on a large-scale. Practical implications – It is suggested that a novel approach to wastewater monitoring, namely using specially designed microwave cavity sensors, could lead to a successful development of an advanced platform capable of providing for a real-time detection of water content with superior sensitivity. Also, a system for real-time multiphase fluid composition monitoring is reported, which is essential for sustainable oil industry operation. Originality/value – The paper illustrated the potential of microwave sensing as a real-time monitoring platform for a broad spectrum of commercial applications, with a focus on system developed by the authors, namely, for the monitoring of a multiphase fluid flow in a dynamic oil pipeline, for real-time monitoring of nutrients concentration in wastewater and for healthcare industry, in particular for real-time non-invasive determination of the glucose levels and bacteria concentration.

Compact GaN-Based Photonic Chip for In Situ Real-Time Monitoring of Low Water Content in Ethanol

2020 ◽  
Vol 2 (11) ◽  
pp. 3502-3507
Author(s):  
Xiaoshuai An ◽  
Liang Chen ◽  
Jing Li ◽  
Qi Wang ◽  
Kwai Hei Li
Keyword(s):  
Water Content ◽  
Real Time ◽  
Real Time Monitoring

scholarly journals Real time monitoring of soil moisture content for landslide early warning: wn experimental study

2018 ◽  
Vol 192 ◽  
pp. 02032
Author(s):  
Panupong Thumtuan ◽  
Tanan Chub-Uppakarn ◽  
Tanit Chalermyanont
Keyword(s):  
Experimental Study ◽  
Water Content ◽  
Real Time ◽  
Time Domain ◽  
Early Warning ◽  
Soil Moisture Content ◽  
Soil Slope ◽  
Real Time Monitoring ◽  
Landslide Early Warning ◽  
Vertical Spacing

Landslides occur commonly after heavy rainfall. More accurate and immediate prediction of landslides for early warning purpose can be achieved when real time water content of the soil slope is known. In this experimental study, the water content was measured using time domain reflectometers (TDR). Five TDRs were installed with equal vertical spacing in a test pit. The measured results were sent to and stored on a web server and real time monitoring was made online. All TDRs results showed a good and accurate water content response of the soil to the rainfall from top to the bottom of the test pit.

scholarly journals Real-Time Monitoring of Water Content in Sandy Soil Using Shear Mode Piezoceramic Transducers and Active Sensing—A Feasibility Study

Sensors ◽  
2017 ◽  
Vol 17 (10) ◽  
pp. 2395 ◽  
Author(s):  
Qingzhao Kong ◽  
Hongli Chen ◽  
Yi-lung Mo ◽  
Gangbing Song
Keyword(s):  
Water Content ◽  
Real Time ◽  
Feasibility Study ◽  
Sandy Soil ◽  
Shear Mode ◽  
Active Sensing ◽  
Real Time Monitoring

Performance Evaluation of 5TM Sensor for Real-Time Monitoring of Volumetric Water Content in Landfill Cover System

2019 ◽  
Vol 8 (1) ◽  
pp. 20180091
Author(s):  
Janarul Shaikh ◽  
Sudheer Kumar Yamsani ◽  
Sreedeep Sekharan ◽  
Ravi R. Rakesh
Keyword(s):  
Performance Evaluation ◽  
Water Content ◽  
Real Time ◽  
Volumetric Water Content ◽  
Real Time Monitoring ◽  
Cover System ◽  
Landfill Cover ◽  
Landfill Cover System

1618: Real-Time Monitoring of Nitric Oxide and Blood Flow During Ischemia-Reperfusion in the Rat Testis

2006 ◽  
Vol 175 (4S) ◽  
pp. 521-521
Author(s):  
Motoaki Saito ◽  
Tomoharu Kono ◽  
Yukako Kinoshita ◽  
Itaru Satoh ◽  
Keisuke Satoh
Keyword(s):  
Nitric Oxide ◽  
Blood Flow ◽  
Real Time ◽  
Ischemia Reperfusion ◽  
Real Time Monitoring ◽  
Rat Testis

GaN heteroepitaxy by remote plasma MOCVD : Real time monitoring by laser reflectance interferometry

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-1175-Pr3-1182 ◽  
Author(s):  
M. Losurdo ◽  
A. Grimaldi ◽  
M. Giangregorio ◽  
P. Capezzuto ◽  
G. Bruno
Keyword(s):  
Real Time ◽  
Real Time Monitoring ◽  
Remote Plasma ◽  
Laser Reflectance

INVESTIGATION OF HAND KINEMATICS TOWARDS FRONT CRAWL SWIMMING USING NON-INVASIVE REAL-TIME MONITORING SYSTEM

2014 ◽  
Author(s):  
Rozaimi Ghazali ◽  
◽  
Asiah Mohd Pilus ◽  
Wan Mohd Bukhari Wan Daud ◽  
Mohd Juzaila Abd Latif ◽  
...  
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Real Time Monitoring ◽  
Front Crawl ◽  
Non Invasive ◽  
Hand Kinematics
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