Optical fiber scrambling and light pipes for high accuracy radial velocities measurements

2008 ◽  
Author(s):  
G. Avila ◽  
P. Singh
Keyword(s):  
Optical Fiber ◽  
High Accuracy ◽  
Radial Velocities

A high-accuracy event discrimination method in optical fiber perimeter security system

2018 ◽  
Vol 47 (9) ◽  
pp. 922002
Author(s):  
李志辰 Li Zhichen ◽  
刘 琨 Liu Kun ◽  
江俊峰 Jiang Junfeng ◽  
马鹏飞 Ma Pengfei ◽  
李鹏程 Li Pengcheng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
High Accuracy ◽  
Security System ◽  
Discrimination Method

Applications of a high accuracy optical fiber displacement sensor to vibrometry and profilometry

2004 ◽  
Vol 116 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Y. Alayli ◽  
S. Topçu ◽  
D. Wang ◽  
R. Dib ◽  
L. Chassagne
Keyword(s):  
Optical Fiber ◽  
High Accuracy ◽  
Displacement Sensor

scholarly journals High-accuracy distributed temperature measurement using difference sensitive-temperature compensation for Raman-based optical fiber sensing

2019 ◽  
Vol 27 (25) ◽  
pp. 36183 ◽  
Author(s):  
Jian Li ◽  
Qian Zhang ◽  
Yang Xu ◽  
Mingjiang Zhang ◽  
Jianzhong Zhang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Temperature Measurement ◽  
Temperature Compensation ◽  
High Accuracy ◽  
Fiber Sensing ◽  
Optical Fiber Sensing

scholarly journals Precise Radial-velocity Measurements with a Cassegrain Spectrograph, II: Radial-velocity Determination and Applications

1999 ◽  
Vol 170 ◽  
pp. 68-72 ◽  
Author(s):  
I. V. Ilyin ◽  
R. Duemmler
Keyword(s):  
Radial Velocity ◽  
Data Reduction ◽  
High Accuracy ◽  
Radial Velocities ◽  
Velocity Measurements ◽  
Echelle Spectrograph ◽  
The Stability ◽  
Stability Issues

AbstractWe present our measurements of radial velocities of two stars suspected to have a substellar companion by using observations made with a cassegrain échelle spectrograph. The stability issues and details of the data reduction are discussed in Ilyin & Duemmler (paper I, these proceedings). The results obtained here show that relatively high accuracy of radial velocity determinations is also attainable for cassegrain spectrographs.

Study on Non-Contact Optical Vibration Senor

2013 ◽  
Vol 433-435 ◽  
pp. 233-236
Author(s):  
Ke Xue Sun ◽  
Xian Jun Li ◽  
Man Li ◽  
Qing Yun Yan ◽  
Xie Feng Cheng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Sensor ◽  
Fiber Optic ◽  
Low Cost ◽  
Measurement Range ◽  
High Accuracy ◽  
Vibration Sensor ◽  
Vibration Measurement ◽  
Good Reliability ◽  
Optical Vibration

The vibration measurement is one of the new application in the optical sensor. This paper studies a new non-contact optical vibration sensor, and implements the Optical fiber vibration sensor based on FPGA. The totally available measurement range arrived over 300um, and the accuracy of 0.1 um can be obtained . This fiber optic vibration sensor has a low cost, good reliability, and high accuracy measurements.

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