scholarly journals Fiber-optic rotation angle sensor based on fused fiber coupler

2010 ◽  
Vol 19 (1) ◽  
pp. 62-66
Author(s):  
Kwang-Taek Kim ◽  
Kyu-Jung Cho
Keyword(s):  
Fiber Optic ◽  
Rotation Angle ◽  
Angle Sensor ◽  
Fiber Coupler

The Study of Four-Position North Seeking System under Vibration Environment

2014 ◽  
Vol 668-669 ◽  
pp. 990-993
Author(s):  
Ming Hui Zong ◽  
Deng Hua Li
Keyword(s):  
Fiber Optic ◽  
Reference Signal ◽  
Vibration Signal ◽  
Pi Controller ◽  
Angle Sensor ◽  
The North ◽  
External Reference ◽  
Tilt Sensor ◽  
The Relationship ◽  
Better Than

In order to develop north seeking system with strong anti-interference ability, the influence caused by the swaying base on the performance of north seeker was investigated. The influence of sinusoidal signal of gyros and tilt sensor's output was analyzed based on four-position north seeking system which was consisted of a single axis gyro and a tilt sensor. Fiber optic gyros and tilt sensor are interference by the same vibration signal, according to the relationship between the output signal of gyro and the angle sensor, a PI controller was designed to compensate the gyro's output error. This real time compensation can effectively improve the north seeking accuracy and speed without complicated calculation or external reference signal. The north seeking accuracy is better than 0.03o. Simulation and actual north seeking result proved that this method significantly improves the north seeking performance in vibrant environment.

Fiber optic displacement sensor using fiber coupler probe and real objects

Sensor Review ◽  
2012 ◽  
Vol 32 (3) ◽  
pp. 212-216 ◽  
Author(s):  
M. Yasin ◽  
H.A. Rahman ◽  
N. Bidin ◽  
S.W. Harun ◽  
H. Ahmad
Keyword(s):  
Fiber Optic ◽  
Displacement Sensor ◽  
Fiber Coupler ◽  
Real Objects

Development of Oxygen Sensor Using Fiber-optics Coupler

1998 ◽  
Vol 10 (3) ◽  
pp. 278-282
Author(s):  
Eiji Toba ◽  
◽  
Masahiro Ichikawa ◽  
Junji Kazama ◽  
Toyonori Nishimatsu ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Fiber Optics ◽  
Emission Intensity ◽  
Oxygen Sensor ◽  
Fiber Optic ◽  
Plastic Optical Fiber ◽  
Optical Fiber Coupler ◽  
Fiber Coupler

This paper describes a fiber-optic oxygen sensor using fluorescence and its application to clinical examinations. The quenching ratio of fluorescence is proportional to oxygen partial pressure by Stern-Volmer's formula in which oxygen concentration is estimated from measured emission intensity. We fabricated a microscopic luminous probe using a Solvent Green 5 doped plastic optical fiber coupler. The probe was studied as an oxygen sensor in visible light. We also clarified sensor characteristics.

Characteristics and Improved Design of Piezoresistive Rotation Angle Sensor Integrated in Micromirror Device

2009 ◽  
Vol 48 (4) ◽  
pp. 04C191 ◽  
Author(s):  
Takuro Aonuma ◽  
Shinya Kumagai ◽  
Minoru Sasaki ◽  
Motoki Tabata ◽  
Kazuhiro Hane
Keyword(s):  
Rotation Angle ◽  
Angle Sensor ◽  
Improved Design
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