scholarly journals Development of a High Precision Displacement Measurement System by Fusing a Low Cost RTK-GPS Sensor and a Force Feedback Accelerometer for Infrastructure Monitoring

Sensors ◽  
2017 ◽  
Vol 17 (12) ◽  
pp. 2745 ◽  
Author(s):  
Gunhee Koo ◽  
Kiyoung Kim ◽  
Jun Chung ◽  
Jaemook Choi ◽  
Nam-Yeol Kwon ◽  
...  
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Force Feedback ◽  
Low Cost ◽  
Displacement Measurement ◽  
Infrastructure Monitoring ◽  
Rtk Gps

A high-precision laser displacement measurement system

2021 ◽  
Author(s):  
Wenqing Pan ◽  
Dengwei Zhang ◽  
Cui Liang ◽  
Chao Ma ◽  
Xiaowu Shu ◽  
...  
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Displacement Measurement

Temperature Cycle Measurement System Based on Single Chip Computer

2010 ◽  
Vol 428-429 ◽  
pp. 487-492
Author(s):  
Xi Yin ◽  
Xiao Jun Wang ◽  
Yong Que Xie
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Low Cost ◽  
Temperature Cycle ◽  
Engineering Practice ◽  
Lead Wire ◽  
Single Chip ◽  
Piecewise Linearization ◽  
Single Chip Computer ◽  
Precision Temperature

This thesis introduces a low cost and high precision temperature cycle measurement system with adoption of PT100 as temperature sensor, with single chip computer as the core. The method of sub-three-wire connection is proposed for engineering practice, then, can eliminate the effects of lead wire resistance and simplify the external cable connection. We discuss and research circuit component selection, circuit design, improving system reliability, and a software method of piecewise linearization process is adopted, thus we ensure exact and reliable measure and the system characteristic of low cost and high precision.

Design of Automatic Measurement System of Lithium Battery Electrochemical Impedance Spectroscopy Based on Microcomputer

2012 ◽  
Vol 241-244 ◽  
pp. 259-264 ◽  
Author(s):  
Wang Li ◽  
Gen Wang Liu ◽  
Fu He Yang
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
High Precision ◽  
Measurement System ◽  
Lithium Battery ◽  
Electrochemical Impedance ◽  
Low Cost ◽  
Automatic Measurement ◽  
Response Curves ◽  
High Level

A system of miniaturized lithium battery electrochemical impedance spectroscopy (EIS) measurement is designed with high precision impedance converter chip AD5933 as its core. The measurement range of the system is from 0.010Hz to 100 KHz. Meanwhile, by using a high-level programming language of C#, an interface is developed which can real-time graphic display of EIS information. Through measurement and analysis of two types of impedance, the results show that detection precision of the system is less than 3.5%. Finally, amplitude-frequency response curves and Nyquist plots of HL-18650 M lithium battery at different state of charge (SOC) levels are measured. Compared with lithium battery EIS measurement system by traditional division, this system has the outstanding advantages of small size, high level of integration, low cost, simple operation and high precision. It is helpful to the mass production and application of lithium battery EIS measurement system.

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.

A Novel Optical Fiber Displacement Measurement System

2014 ◽  
Vol 599-601 ◽  
pp. 684-688 ◽  
Author(s):  
Kai Sen Guan ◽  
Yu He Li ◽  
Yan Xiang Chen ◽  
Yong Rong Qiu
Keyword(s):  
Optical Fiber ◽  
High Precision ◽  
Measurement System ◽  
Simple Structure ◽  
Large Range ◽  
Measurement Model ◽  
Displacement Measurement ◽  
Displacement System ◽  
Novel Design ◽  
Structure Light

In order to meet the displacement measurement’s need for high precision and large measuring range, a novel design of optical fiber displacement system is proposed. Optical fiber is applied to the displacement measurement field with its simple structure, light weight, cheap cost and high precision. A displacement measurement model based on transmissive optical fiber is established, and theoretical calculation and simulation are conducted to verify the accuracy of the model. Displacement measuring experiments are completed and the results show that the transmissive optical fiber displacement measurement system has high measuring accuracy with the relative error less than 0.2% over a large range.

Hardware-in-the-Loop Simulation of High Precision Displacement Measurement System

2019 ◽  
Vol 46 (2) ◽  
pp. 0204001
Author(s):  
张文涛 Zhang Wentao ◽  
杜浩 Du Hao ◽  
熊显名 Xiong Xianming ◽  
谢仁飚 Xie Renbiao ◽  
王献英 Wang Xianying
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Displacement Measurement ◽  
Hardware In The Loop
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