Design and Implementation of FOG Based Gyrocompass

2013 ◽  
Vol 332 ◽  
pp. 124-129 ◽  
Author(s):  
Aqeel Abbas
Keyword(s):  
High Precision ◽  
Fiber Optic ◽  
Low Cost ◽  
Test Results ◽  
Fiber Optic Gyroscope ◽  
Design And Implementation ◽  
Computer Based ◽  
Novel Design

A novel design of gyrocompass consisting of a single axis Fiber Optic Gyroscope (FOG) and a Theodolite is proposed to meet the requirements of low-cost, fast and high-precision. This algorithm uses FOG data and theodolite encoder feedback to determine Azimuth. Micro computer based software is also discussed which was developed for implementation of this scheme; finally test results and plots are briefly presented which proves effectiveness of the designed methodology. By this design an accuracy of 0.08ois achieved in approximately 5 min time.

The Design and Implementation of MSINS/GPS Navigation Computer

2014 ◽  
Vol 490-491 ◽  
pp. 1078-1081
Author(s):  
Yan Bin Gao ◽  
Hui Yu Liu ◽  
Xing Zhi Zhang ◽  
Ji Tao Han
Keyword(s):  
Low Power ◽  
High Precision ◽  
Navigation System ◽  
Low Cost ◽  
Data Communication ◽  
Gps Navigation ◽  
Design And Implementation ◽  
Navigation Computer ◽  
Computer Based

In order to meet the miniaturization, low power, low cost and increasingly high precision requires of Strapdown navigation system, the Strapdown Navigation Computer based on DSP and FPGA is researched in this paper. DSP is used to process the data. The FPGA has functions of data collected and I/O controlled etc, the dual-port RAM interface complete the data communication between DSP and FPGA. Two CPU give full play to their respective characteristics, the coordinated work, can complete the function of the navigation computer well.

Design of light source for ultra-high precision fiber optic gyroscope

2021 ◽  
Author(s):  
Xin Chen ◽  
Miao Yan ◽  
Jie Yu ◽  
Ruoxiang Tang
Keyword(s):  
Light Source ◽  
High Precision ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope

Design and implementation of a realtime co-processor for denoising Fiber Optic Gyroscope signal

2013 ◽  
Vol 23 (5) ◽  
pp. 1813-1825 ◽  
Author(s):  
Rangababu Peesapati ◽  
Samrat L. Sabat ◽  
Kiran Kumar Anumandla ◽  
Palani Karthik Kandyala ◽  
Jagannath Nayak
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Gyroscope ◽  
Design And Implementation

The Study of Luminous Flux Method for Rapid Measurement of Micro-Aperture Area

2013 ◽  
Vol 321-324 ◽  
pp. 671-675
Author(s):  
Ming Ye ◽  
Dong Jing Xu ◽  
Zhi Qiang Ni
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Low Cost ◽  
Luminous Flux ◽  
Measurement Methods ◽  
Previous Measurement ◽  
Test Results ◽  
Measuring Head ◽  
Flux Method ◽  
Rapid Measurement

This paper presents a new method for micro-aperture measurement based on luminous flux. The principle and the structure of micro-aperture measurement system are introduced in detail. Compared with previous measurement methods, the proposed method has several advantages: The measuring head with array line structure can measure several apertures’ area directly at the same time. The shape of the aperture is not limited to a circle or any other shape. It is a measuring technique with high precision and low cost. The test results show that the uncertainty is mm of a circular 0.5 mm diameter aperture, and the average linearity value is 3.47% to the aperture which diameter in the range from 150 to 500um.

scholarly journals The Design and Implementation of a High-Precision Positioner Fixture

Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1227
Author(s):  
Xuesen Zhao ◽  
Rongkai Tan ◽  
Zhe Wang ◽  
Xicong Zou ◽  
Zhenjiang Hu ◽  
...  
Keyword(s):  
Theoretical Calculation ◽  
High Precision ◽  
Tooth Profile ◽  
Alignment Error ◽  
Test Results ◽  
Positioning Accuracy ◽  
Design And Implementation ◽  
Cumulative Error ◽  
Half Angle ◽  
Calculation Results

In this paper, a novel positioner fixture with a high repeated positioning accuracy and a high stiffness is proposed and investigated. A high-precision end-toothed disc is used to achieve the high repeated positioning accuracy of the designed positioner fixture. The mathematical models of the cumulative error of the tooth pitch, the tooth alignment error and the error of the tooth profile half-angle of the end-toothed disc are analyzed. The allowable tolerance values of the cumulative error of the tooth pitch, the tooth alignment error and the error of the tooth profile half-angle of the end-toothed disc are given. According to the theoretical calculation results, a prototype positioner fixture is fabricated and its repeated positioning accuracy and stiffness are tested. The test results indicate that the stiffness of the proposed positioner fixture is 1050.5 N/μm, which is larger than the previous positioner fixtures of the same type. The repeated positioning accuracy of the proposed positioner fixture in the x, y and z directions are ± 0.48 μm, ± 0.45 μm and ± 0.49 μm, respectively, which is significantly higher than the previous positioner fixtures.

Reduction of light-source-induced scale-factor nonlinearities in low-cost fiber optic gyroscope

1996 ◽  
Author(s):  
Wolfgang Ecke ◽  
Klaus Hilpert ◽  
Andreas Holz ◽  
Rudolf Mueller ◽  
Michael Neukirch ◽  
...  
Keyword(s):  
Light Source ◽  
Fiber Optic ◽  
Low Cost ◽  
Scale Factor ◽  
Fiber Optic Gyroscope
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