scholarly journals Monitoring Moisture Content for Various Kind of Tea Leaves in Drying Processes Using RF Reflectometer-Sensor System

Instruments ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 18 ◽  
Author(s):  
Kok You ◽  
Chia Lee ◽  
Kok Chan ◽  
Kim Lee ◽  
Ee Cheng ◽  
...  

This paper presents tea leaves moisture monitoring system based on RF reflectometry techniques. The system was divided into two parts which are the sensor and reflectometer parts. The large coaxial probe was used as a sensor for the system. The reflectometer part plays a role as signal generator and also data acquisition. The reflectometer-sensor system was operated with a graphical user interface at 1.529 GHz at room temperature. The system was able to measure the moisture content of tea leaves ranging 0% m.c to 50% m.c on a wet basis. In this study, up to five kinds of tea leaves bulk were tested. The mean of absolute errors in the moisture measurement for tea leaves was ±2.

Author(s):  
Kok Yeow You ◽  
Chia Yew Lee ◽  
Kok San Chan ◽  
Kim Yee Lee ◽  
Ee Meng Cheng ◽  
...  

This paper presents tea leaves moisture monitoring system based on RF reflectometry techniques. The system was divided into two parts which are the sensor and reflectometer parts. The large coaxial probe was used as a sensor of the system. The reflectometer part plays a role as signal generator and also data acquisition. The reflectometer-sensor system was operated with a graphical user interface at 1.529 GHz at room temperature. The system was able to measure the moisture content of tea leaves ranging 0% m.c to 50% m.c on a wet basis. In this study, up to five kinds of tea leaves bulk were tested. The mean of absolute errors in the moisture measurement for tea leaves was ±2.


Author(s):  
Martin Lollesgaard ◽  
Rasmus Brøndum

<p>The monitoring system on the Great Belt Bridge has been under a renewal process for the last 4 years. <p>Worn down sensors for alarm and maintenance purposes have been replaced by new more appropriate sensors. <p>A new structural health monitoring system for maintenance with a database and a graphical user interface (GUI) has been developed. The software collects and stores measurement data from a large number of sensors on both the cable‐suspended East Bridge and the low‐level West Bridge. From summer 2018 more than 400 sensors can be monitored from one GUI. More sensors are following in 2019. <p>The project has been carried out by Rambøll as client consultant and Krabbenhøft & Ingolfsson as main contractor.


2020 ◽  
Vol 92 (9) ◽  
pp. 1251-1251
Author(s):  
S. Malzacher ◽  
J. Range ◽  
C. Halupczok ◽  
J. Pleiss ◽  
D. Rother

2008 ◽  
Vol 163 (3) ◽  
pp. 435-443 ◽  
Author(s):  
Yuan-Hsiang Chang ◽  
Mu-Ping Xu ◽  
Jyh-Tong Teng ◽  
Te-Chuan Wang ◽  
Ray-Feng Chiang ◽  
...  

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