scholarly journals Polymer Optical Fiber Intensity-Based Sensor for Liquid-Level Measurements in Volumetric Flasks for Industrial Application

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
D. S. Montero ◽  
C. Vázquez
Keyword(s):  
Optical Fiber ◽  
Optical Sensors ◽  
Low Cost ◽  
Industrial Process ◽  
Experimental Results ◽  
Liquid Level ◽  
Polymer Optical Fiber ◽  
Wireless Mesh ◽  
Level Measurement ◽  
Liquid Level Measurement

A low-cost intensity-based polymer optical fiber (POF) sensor for liquid detection applied to volumetric flasks is presented. Experimental results demonstrate the viability of the POF-based sensor system in a high-accuracy liquid level measurement scenario. Moreover, a wireless mesh sensor network based on ZigBee specification protocol to address multiplexed POF-based sensor is also developed. Experimental results demonstrate the feasibility to address a high number of optical sensors in an industrial process framework by means of this low-cost wireless solution.

Low-Cost Comb-Electrode Capacitive Sensing Device for Liquid-Level Measurement

2016 ◽  
Vol 16 (9) ◽  
pp. 2896-2897 ◽  
Author(s):  
Cihun-Siyong Alex Gong ◽  
Huan Ke Chiu ◽  
Li Ren Huang ◽  
Cheng Hsun Lin ◽  
Zen Dar Hsu ◽  
...  
Keyword(s):  
Low Cost ◽  
Liquid Level ◽  
Capacitive Sensing ◽  
Level Measurement ◽  
Liquid Level Measurement

scholarly journals Development of Non-Contact Liquid Level Measurement and Data Storage System

2018 ◽  
Vol 3 (3) ◽  
pp. 134-142
Author(s):  
Muhammad Mahbubur Rashid ◽  
Abdullah Al Mamun ◽  
Abdul Hassan Jaafar ◽  
Md. Sajib Mollik
Keyword(s):  
Data Storage ◽  
Flash Flood ◽  
Low Cost ◽  
Storage System ◽  
Liquid Level ◽  
Ultra Sound ◽  
Sound Waves ◽  
Normal Contact ◽  
Level Measurement ◽  
Liquid Level Measurement

The normal contact type liquid measurement devices have some drawbacks since they have potential damage due to the sensor fouling or corrosion since those are continuously exposed to the liquid. Especially flash flood may cause the damage of liquid level sensor. So that, it is important to design a non-contact device for liquid level measurement in order to avoid this constrain. Distance can be measured without contact such as laser, ultrasonic and radar. In this research, ultrasonic sensor is used to provide non-contact feature of the device since it is low cost and uses ultra-sound waves rather than light. This vital sensing device is able to sense uneven surfaces, liquids, clear objects, and objects in dirty environments. This paper discussed the measurement of liquid level in a tank as well as storing historical data.

scholarly journals Quasi-distributed liquid level measurement with adaptable optical fiber transducers

2007 ◽  
Author(s):  
M. Lomer ◽  
A. Quintela ◽  
M. A. Quintela ◽  
A. Cobo ◽  
J. M. López-Higuera
Keyword(s):  
Optical Fiber ◽  
Liquid Level ◽  
Level Measurement ◽  
Liquid Level Measurement

scholarly journals Liquid level sensor based on CMFTIR effect in polymer optical fiber

2016 ◽  
Vol 6 (4) ◽  
pp. 312-317 ◽  
Author(s):  
Yulong Hou ◽  
Wenyi Liu ◽  
Huixin Zhang ◽  
Shan Su ◽  
Jia Liu ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Liquid Level ◽  
Polymer Optical Fiber ◽  
Level Sensor ◽  
Liquid Level Sensor

scholarly journals Reconfigurable optical multiplexer based on liquid crystals for polymer optical fiber networks

2006 ◽  
Vol 14 (4) ◽  
Author(s):  
P. Lallana ◽  
C. Vázquez ◽  
J. Pena ◽  
R. Vergaz
Keyword(s):  
Optical Fiber ◽  
Wavelength Division Multiplexing ◽  
Optical Sensors ◽  
Integrated Circuit ◽  
Electronic System ◽  
Polymer Optical Fiber ◽  
Fiber Network ◽  
Fiber Networks ◽  
Graded Index ◽  
Optical Fiber Networks

AbstractIn this work, different novel 3×1 multiplexer structures for being used in polymer optical fiber networks are proposed. Designs are compact, scalable, and of low consumption, capable of operating in a large wavelength range simultaneously 660, 850, and 1300 nm, due to the use of nematic liquid crystal cells. Light that comes from each input port is handled independently and eight operation modes are possible.Control electronics has been made using a programmable integrated circuit. Electronic system makes available the managing of the optical stage using a computer. An additional four optical sensors have been included for allowing the optical status checking.Finally, a polarization independent multiplexer has been implemented and tested. Insertion losses less than 4 dB and isolation better than 23 dB have been measured. In addition, 30-ms and 15-ms setup and rise times have been obtained. The proposed multiplexer can be used in any polymer optical fiber network, even in perfluorinated graded index one, and it can be specially useful in optical sensor networks, or in coarse wavelength division multiplexing networks.

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