Angle Measurement Using Ring Laser

1979 ◽  
Vol 45 (529) ◽  
pp. 95-99
Author(s):  
Kouji TOYODA ◽  
Yoshimasa SAKURAI
Keyword(s):  
Ring Laser ◽  
Angle Measurement

Rotation angle measurement using a solid state ring laser

1995 ◽  
Author(s):  
S. H. Son ◽  
J. M. Hong ◽  
H. J. Song ◽  
T. K. Sung ◽  
Sang K. Gil ◽  
...  
Keyword(s):  
Solid State ◽  
Ring Laser ◽  
Rotation Angle ◽  
Angle Measurement

Angle Measurements with Laser

2012 ◽  
Vol 239-240 ◽  
pp. 206-213
Author(s):  
Yang Wang ◽  
Chang Xiang Yan ◽  
Zhi Liang Gao
Keyword(s):  
Ring Laser ◽  
Angle Measurement ◽  
Internal Reflection ◽  
Laser Interference ◽  
Reflection Effect ◽  
Angle Measurements

Laser is widely used in angle measurements. This paper presents several frequently used methods of angle measurement that utilize laser, including：autocollimation angle measurement, angle measurement based on internal-reflection effect, laser interference angle measurement, angle measurement with ring laser and angle measurement with CCD. The principle, actualities, application situation, superiority and defects of each method are discussed.

Precision angle measurement in a diffractional spectrometer by means of a ring laser

1998 ◽  
Vol 9 (7) ◽  
pp. 1067-1071 ◽  
Author(s):  
M N Bournachev ◽  
Yu V Filatov ◽  
K E Kirianov ◽  
D P Loukianov ◽  
A F Mezentsev ◽  
...  
Keyword(s):  
Ring Laser ◽  
Angle Measurement

Ring Laser for Angle Measurement Devices

2021 ◽  
pp. 775-784
Author(s):  
Irina Cherepanska ◽  
Olena Bezvesilna ◽  
Artem Sazonov ◽  
Petro Melnychuk ◽  
Valerii Kyrylovych
Keyword(s):  
Ring Laser ◽  
Angle Measurement ◽  
Measurement Devices

scholarly journals Precision Angle Measurement Systems on the Basis of Ring Laser Gyro

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6930
Author(s):  
Yuri V. Filatov ◽  
Petr A. Pavlov ◽  
Alexander A. Velikoseltsev ◽  
K. Ulrich Schreiber
Keyword(s):  
Ring Laser ◽  
Operating Mode ◽  
Calibration Method ◽  
Angle Measurement ◽  
Navigation Systems ◽  
Laser Gyro ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope ◽  
Laser Dynamic Goniometer ◽  
Cross Calibration

The main application of a ring laser gyroscope is navigation. It is currently the most widely used device for strapdown inertial navigation systems. However, it is also applicable for high-precision angle metrology systems. This paper discusses the properties of a laser dynamic goniometer (LDG) based on the ring laser gyroscope and designed for the calibration of optical polygons and digital angle converters, and for the measurement of angles between external mirrors (theodolite operating mode). We consider the main sources of uncertainty, such as the ring laser gyro bias due to an external magnetic field and the instability caused by the velocity of rotation along with applicable methods of their compensation. The reversal method providing separation of uncertainties of the LDG and the calibrated angle converter is analyzed in detail. The simplified cross-calibration method is also considered. The results of calibration of optical encoders of various designs—with and without their own rotors (on-axis and off-axis in Euramet terminology)—are presented. Some results of the dynamic goniometer for the measurement of angles between external mirrors are presented. It is shown that the LDG in this mode of operation demonstrates better accuracy than modern theodolites and total stations.

Dynamic angle measurement by means of a ring laser

Metrologia ◽  
1997 ◽  
Vol 34 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Yu V Filatov ◽  
D P Loukianov ◽  
R Probst
Keyword(s):  
Ring Laser ◽  
Angle Measurement ◽  
Dynamic Angle

The Analysis of Turntable Error and Arithmetic Design for North-Finder Based on Rate Biased RLG

2011 ◽  
Vol 383-390 ◽  
pp. 6313-6318 ◽  
Author(s):  
Yan Zhang ◽  
Ju Liang Cao ◽  
Wen Qi Wu ◽  
Guo Chang Hu
Keyword(s):  
Measurement Error ◽  
Measurement Errors ◽  
Ring Laser ◽  
Angle Measurement ◽  
Laser Gyro ◽  
The North ◽  
The Stability

Currently, the continuous rotary north-finder is widely discussed for its outstanding performance. However, few researches on the influence of turntable error to the continuous rotary north-finding algorithm can be found. Turntable errors, such as the stability of rotate speed, the periodic angle measurement error and the discrete angle measurement error, are studied for the north-finder based on rate biased RLG (ring laser gyro). Two north-finding algorithms are designed, which can restrain the influence of angle measurement errors and the stability of rotate speed separately. Finally, simulation and experiments are performed to verify the algorithms.

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