Design and Implementation of High Accuracy Current Measurement Circuit Based on Resistance Sampling Method

2018 ◽  
Author(s):  
Li Yanlin ◽  
Zhao Hui ◽  
Zhang Guojiang ◽  
Zhang Hong
Keyword(s):  
Sampling Method ◽  
High Accuracy ◽  
Current Measurement ◽  
Measurement Circuit ◽  
Design And Implementation

The Design and Implementation of Ship Electric Field Measurement System Based on MSP430

2012 ◽  
Vol 622-623 ◽  
pp. 1378-1383
Author(s):  
Peng Han ◽  
Yang Li
Keyword(s):  
Electric Field ◽  
Measurement System ◽  
Field Measurement ◽  
High Accuracy ◽  
Low Power Consumption ◽  
Electric Field Measurement ◽  
Low Snr ◽  
Design And Implementation ◽  
Key Technologies ◽  
Software And Hardware

The ship electric field has become a new physical field which is widely concerned at home and abroad in recent years. For the research of ship electric field, one of the most effective methods is to measure it underwater. According to the analysis of ship electric field signal’s characteristics, the ship electric field measurement system based on MSP430F149 was designed and the key technologies of software and hardware were also presented in this paper. The results of experiment demonstrated that the system could effectively measure the ship electric field signal in a low SNR. Meanwhile, it has the advantages of low power consumption, high accuracy and credible.

Laboratory-Scale Single Axis Solar Tracking System: Design and Implementation

2016 ◽  
Vol 7 (1) ◽  
pp. 254 ◽  
Author(s):  
Allan Soon Chan Roong ◽  
Shin-Horng Chong
Keyword(s):  
System Design ◽  
High Performance ◽  
Tracking System ◽  
High Accuracy ◽  
Laboratory Scale ◽  
Performance Ratio ◽  
Design And Development ◽  
Design And Implementation ◽  
Solar Tracking ◽  
Angle Of Rotation

This paper presents the design and development of a laboratory-scale single axis solar tracking system. The chronological method was implemented into the system because it has high accuracy and can save more energy as compared to other types of solar tracking system. The laboratory-scale single axis solar tracking system can be used to identify the suitable and safe workspace for the installation of the actual solar tracking system plant. Besides, the validity of the laboratory-scale single axis solar tracking system was examined experimentally. The angle of rotation, per hour is preferable to be implemented into the designed laboratory-scale single axis sun tracking system due to the high performance ratio which is 0.83 and can save the energy up  to 25% during sunny days.

Design and Implementation of a High Accuracy Interpolation Encoder IC for Magnetic Sensor

2019 ◽  
Author(s):  
Wen-Yu Chen ◽  
Yi-Feng Zhang ◽  
Paul C.-P. Chao ◽  
Eka Fitrah Pribadi
Keyword(s):  
Measurement System ◽  
Noise Immunity ◽  
Supply Voltage ◽  
High Accuracy ◽  
Cmos Process ◽  
Specific Method ◽  
Clock Frequency ◽  
Design And Implementation ◽  
Equal Distance ◽  
Interpolation Technique

Abstract The magnetic encoder (ME) always employs sensor passing through periodic and equal distance grating and then generates periodic quadrature scaling signals for displacement measurement. The phase is relative to the movement. To improve encoder accuracy or resolution, electronic interpolation technique had been developed to subdivide the phase of quadrature scaling signals. According to the trends, this paper proposed a specific method with excellent noise immunity characteristic and a complete calibration process to improve the accuracy of the system. The designed circuit is taped-out using TSMC 0.18-μm CMOS process, where the active area is 1643 μm × 1676 μm. The chip has the specification of 3.3 V supply voltage, 20 MHz clock frequency, and 0.0859 mW power consumption. The accuracy of the measurement system is 1.065um.

Multiplexed Voltage Measurement for Serial Connected Power Li-Ion Battery String

2015 ◽  
Vol 742 ◽  
pp. 229-233
Author(s):  
Lin Yang Liu ◽  
Han Xin Shen ◽  
Wen Zhang Zhu
Keyword(s):  
Lithium Battery ◽  
High Accuracy ◽  
Measurement Precision ◽  
Li Ion Battery ◽  
Simple Circuit ◽  
Measurement Circuit ◽  
Voltage Measurement ◽  
Temperature Drift ◽  
Factors Affecting ◽  
Li Ion

This paper proposes a new method of multiplexed voltage measurement for serial connected power lithium battery string. The method has some advantages such as simple circuit, the simultaneous measurement and high accuracy. The principle of the voltage measurement circuit is analyzed in this paper, and proposes the solution to the factors affecting the measurement precision of the circuit. Experiments show that this circuit leakage current and temperature drift is small, and also have high precision.

Design and Implementation of Sensing and Estimation Software in AggieNav, a Small UAV Navigation Platform

2009 ◽  
Author(s):  
Calvin Coopmans ◽  
Haiyang Chao ◽  
YangQuan Chen
Keyword(s):  
Kalman Filter ◽  
Extended Kalman Filter ◽  
Low Cost ◽  
High Accuracy ◽  
Level System ◽  
Design And Implementation ◽  
Small Uav ◽  
High Level ◽  
Navigational Systems ◽  
Uav Navigation

Small UAV performance is limited by the sensors and software filters used in the navigational systems. Several solutions of various complexity and cost exist, however no ready-made solutions exist for a high-accuracy, low-cost UAV system. Presented is the design (low-level system as well as high-level extended Kalman filter) for a specifically designed small-UAV navigation platform, AggieNav.

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