High accuracy displacement measuring system using strain gauge based displacement sensor and direct sequence spread spectrum techniques in data acquisition system

2017 ◽  
Vol 60 (1) ◽  
pp. 154-157 ◽  
Author(s):  
Karunamoy Chatterjee ◽  
Sankar Narayan Mahato ◽  
Subrata Chattopadhyay ◽  
Dhananjoy De
Keyword(s):  
Data Acquisition ◽  
Strain Gauge ◽  
Spread Spectrum ◽  
Data Acquisition System ◽  
High Accuracy ◽  
Direct Sequence Spread Spectrum ◽  
Acquisition System ◽  
Measuring System ◽  
Displacement Sensor ◽  
Direct Sequence

scholarly journals Design and Development of a 5-Channel Arduino-Based Data Acquisition System (ABDAS) for Experimental Aerodynamics Research

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2382 ◽  
Author(s):  
Antonio Vidal-Pardo ◽  
Santiago Pindado
Keyword(s):  
Data Acquisition ◽  
Low Cost ◽  
Data Acquisition System ◽  
High Accuracy ◽  
Acquisition System ◽  
Calibration System ◽  
Experimental Aerodynamics ◽  
Accuracy Level ◽  
The Fourier Transform ◽  
Cup Anemometer

In this work, a new and low-cost Arduino-Based Data Acquisition System (ABDAS) for use in an aerodynamics lab is developed. Its design is simple and reliable. The accuracy of the system has been checked by being directly compared with a commercial and high accuracy level hardware from National Instruments. Furthermore, ABDAS has been compared to the accredited calibration system in the IDR/UPM Institute, its measurements during this testing campaign being used to analyzed two different cup anemometer frequency determination procedures: counting pulses and the Fourier transform. The results indicate a more accurate transfer function of the cup anemometers when counting pulses procedure is used.

Nonlinear Compensation for Resistive Displacement Sensor

2013 ◽  
Vol 380-384 ◽  
pp. 3222-3225
Author(s):  
Yu Tian Zhu ◽  
Yan Long Zhao ◽  
Ju Fu Hua ◽  
Zhao Liu
Keyword(s):  
Data Acquisition ◽  
Functional Relationship ◽  
Detection System ◽  
Data Acquisition System ◽  
Compensation System ◽  
Acquisition System ◽  
Displacement Sensor ◽  
Sensor Error ◽  
Input And Output ◽  
Nonlinear Compensation

For the nonlinearity of sensors always reduces the accuracy of control and detection system in engineering, a new compensation method based on MCU is put forward in this paper. To verify the feasibility of this method, a data acquisition system and compensation system are designed. The polynomial fitting is applied to obtain the functional relationship between input and output. Then the compensation system is tested on the resistive displacement sensor. The results show that after the compensation, the sensor error can be reduced to less than 1% and this method is identified to be practical.

An AD7746-Based Data Acquisition System for Capacitive Pressure Sensor in Weather Detection Application

2011 ◽  
Vol 483 ◽  
pp. 461-464 ◽  
Author(s):  
Zhen Huang ◽  
Jian Zhu ◽  
Le Lu
Keyword(s):  
Data Acquisition ◽  
Pressure Sensor ◽  
Pressure Range ◽  
Data Acquisition System ◽  
High Accuracy ◽  
Acquisition System ◽  
Capacitive Pressure Sensor ◽  
Lcd Display ◽  
Wireless Module ◽  
Weather Observation

Data acquisition system for barometric capacitive pressure sensor with high accuracy is present. The precision of the data acquisition system is less than 1fF, which improves the pressure sensor with high accuracy of 0.1hPa in the pressure range from 5hPa to 1080hPa. The data acquisition system consists of an AD7746 chip, an ATmega16 microprocessor, a 1602 LCD display and a pair of wireless modules. The capacitance data acquired by the AD7746 are transferred to a host computer using RS232 port via wireless module and display on the LCD in real-time. Preliminary results obtained from experiments show that this system fulfills the requirements of the weather observation and can be used in upper-air weather detection applications.

scholarly journals Determination of characteristics of feromagnetic material using modern data acquisition system

2009 ◽  
Vol 6 (3) ◽  
pp. 451-459 ◽  
Author(s):  
Branko Koprivica ◽  
Alenka Milovanovic ◽  
Milic Djekic
Keyword(s):  
Mathematical Model ◽  
Data Acquisition ◽  
Hysteresis Loop ◽  
Electrical Steel ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Measuring System ◽  
Data Acquisition Software ◽  
Data Acquisition Card

This paper describes the use of modern measuring and data acquisition system for determining characteristics of feromagnetic material. For this purpose data acquisition card NI USB-6009, PC with data acquisition software and fluxmeter Electrical Steel Measuring System MPG 100 D were used. Based on the results obtained by measurements the modeling of hysteresis loop is performed by using appropriate mathematical model.

scholarly journals DESIGN OF FORCE MEASURING SYSTEM ON MAIN LANDING GEAR WEIGHT DROP TESTING MACHINE FOR THE APPLICATION OF LSU SERIES

2020 ◽  
Vol 18 (2) ◽  
pp. 159
Author(s):  
Yusuf Giri Wijaya ◽  
Abian Nurrohmad
Keyword(s):  
Data Acquisition ◽  
Reaction Force ◽  
Testing Machine ◽  
Data Acquisition System ◽  
Landing Gear ◽  
Load Cell ◽  
Acquisition System ◽  
Measuring System ◽  
Weight Drop ◽  
The Impact

In this research, the design of the force measuring system on main landing gear weight drop test for the LSU series that developed by LAPAN was carried out. The principle of this machine is to apply the load according to the weight of the aircraft on the main landing gear and drop it at a certain height assisted by the guiding rail. At the bottom of this machine there is a impact platform where each angle is mounted with a load cell that functions to measure the reaction force due to the impact of the main landing gear. In addition, there is a data acquisition system whose function is to process the output signal from load cell and display measurement data. The data acquisition system used consists of DAQ measurement hardware made by national instruments and LabVIEW software installed on a PC. The design of this testing tools aims to carry out a dynamic impact test on the main landing gear structure of the UAV. In this study, static calibration has also been successfully performed on the impact platform and shows consistent results for various test masses.

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