Real-time monitoring of total polyphenols content in tea using a developed optical sensors system

2014 ◽  
Vol 97 ◽  
pp. 116-122 ◽  
Author(s):  
Shuai Qi ◽  
Qin Ouyang ◽  
Quansheng Chen ◽  
Jiewen Zhao
Keyword(s):  
Real Time ◽  
Optical Sensors ◽  
Real Time Monitoring ◽  
Total Polyphenols

Real-Time Monitoring of the Weld Penetration State in Laser Welding of High-Strength Steels by Airborne Acoustic Signal

2009 ◽  
Author(s):  
Wei Huang ◽  
Shanglu Yang ◽  
Dechao Lin ◽  
Radovan Kovacevic
Keyword(s):  
Laser Welding ◽  
Real Time ◽  
Optical Sensors ◽  
Weight Ratio ◽  
Welding Process ◽  
High Strength Steels ◽  
High Strength ◽  
Acoustic Signals ◽  
Real Time Monitoring ◽  
Laser Welding Process

Nowadays high-strength steels have great applications in different industries due to their good combination of formability, weldability, and high strength-to-weight ratio. To guarantee a high quality without the presence of defects such as partial penetration (PP) in the laser welding of high-strength steels, it is very important to on-line monitor the whole welding process. While optical sensors are widely applied to monitor the laser welding process, we are proposing to use a microphone to acquire the airborne acoustic signals produced during laser welding of high-strength steel DP980. In order to extract valuable information from a very noisy signal acquired in a harsh environment such as industrial welding, spectral subtraction (SS), a noise reduction method is used to process the acquired airborne sound signals. Furthermore, by applying the power spectrum density (PSD) estimation method, the frequency characteristics of the acoustic signals are analyzed as well. The results indicate that the welds in full penetration (FP) and PP produce different signatures of acoustic signals that are characterized with different sound pressure levels and frequency distributions ranging from 500 Hz to 1500 Hz. Based on these differences, two algorithms are developed to distinguish the FP from PP during the laser welding process. A real-time monitoring system is implemented by a LabVIEW-based graphic program developed in this research. A feedback control system that could guarantee the FP will be developed in the near future.

scholarly journals The aquatic real-time monitoring network; in-situ optical sensors for monitoring the nation's water quality

Fact Sheet ◽  
2011 ◽  
pp. 1-2 ◽  
Author(s):  
Brian A. Pellerin ◽  
Brian A. Bergamaschi ◽  
Peter S. Murdoch ◽  
Bryan D. Downing ◽  
John Franco Saraceno ◽  
...  
Keyword(s):  
Water Quality ◽  
Real Time ◽  
Optical Sensors ◽  
Monitoring Network ◽  
Real Time Monitoring

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

101-LB: Real-Time Monitoring of Cholesterol Levels Using a Microfluidic Device

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 101-LB
Author(s):  
ABHINAV BHUSHAN ◽  
SONALI J. KARNIK
Keyword(s):  
Real Time ◽  
Microfluidic Device ◽  
Real Time Monitoring ◽  
Cholesterol Levels

REALIZING IoT BASED REAL TIME MONITORING AND CONTROLLING SYSTEM

2017 ◽  
Vol 4 (4) ◽  
pp. 20
Author(s):  
KAVITHA T. ◽  
PREETHI D. LAVANYA ◽  
SARANYA S. ◽  
ANCY EVERT P.M. JONAH ◽  
◽  
...  
Keyword(s):  
Real Time ◽  
Real Time Monitoring ◽  
Controlling System
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