Design of an analog channel for broadband high-dynamic acquisition system

2019 ◽  
Author(s):  
Zeng Hao ◽  
Tian Yu ◽  
Guo Lianping ◽  
Gao Xihong ◽  
Ye Peng
Keyword(s):  
Acquisition System ◽  
Analog Channel ◽  
High Dynamic ◽  
Dynamic Acquisition

Design and Implementation of Data Acquisition System Based on FPGA and High-Speed AD

2014 ◽  
Vol 556-562 ◽  
pp. 1515-1519 ◽  
Author(s):  
Zhi Li ◽  
Da Hua Chen
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Analog Channel ◽  
Data Output ◽  
High Speed Data Acquisition ◽  
System Data ◽  
High Speed Data ◽  
To Receive

High speed analog signals output by test object in the field of testing and controlling is typical. This paper designed a high-speed AD data acquisition system responding to this situation. In the design of the system, data is first conditioned by the analog channel. FPGA is then employed to receive, decelerate, reorganize and store the high-speed LVDS data output by AD. Data is displayed in computer after being collected by ARM from FGPA. Real circuit designing demonstrated that the high-speed data acquisition system of AD based on 100M bandwidth of analog channel is workable.

The Rail Profile Shape Dynamic Acquisition System Based on LabVIEW

2014 ◽  
Vol 587-589 ◽  
pp. 956-960
Author(s):  
Jian Wang ◽  
Wei Ping Wang ◽  
Meng Nan Zhang ◽  
Ping Wang
Keyword(s):  
Data Storage ◽  
Software Design ◽  
High Efficiency ◽  
Detection Method ◽  
Design Method ◽  
Acquisition System ◽  
Railway System ◽  
Low Efficiency ◽  
Track Surface ◽  
Dynamic Acquisition

In order to solve the problem of the artificial detection method of rail abrasion ,which is low efficiency, low precision, not easy to store and so on, design and development of rail profile dynamic acquisition system based on LabVIEW, introduced the hardware and software design method. The system take the laser line on the rail surface as the detection object, which is not easily affected by external factors and high measuring accuracy; testing personnel can continuous push the inspection car to check on the track surface, which is high efficiency. The system can realize side abrasion and vertical abrasion of the rail, and calculate the total abrasion. It also can achieve the function of abrasion limit alarm and complete the data storage. It has the vital significance to improve the present situation of the work department, and guarantee the safety of railway system.

scholarly journals High dynamic range diamond detector acquisition system for beam wire scanner applications

2016 ◽  
Vol 11 (03) ◽  
pp. C03008-C03008
Author(s):  
J.L. Sirvent ◽  
B. Dehning ◽  
E. Piselli ◽  
J. Emery ◽  
A. Dieguez
Keyword(s):  
Dynamic Range ◽  
High Dynamic Range ◽  
Acquisition System ◽  
Diamond Detector ◽  
High Dynamic

scholarly journals Combining Thermal Loading System with Acoustic Emission Technology to Acquire the Complete Stress-Deformation Response of Plain Concrete in Direct Tension

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 602
Author(s):  
Rui Zhang ◽  
Li Guo ◽  
Wanjin Li
Keyword(s):  
Acoustic Emission ◽  
Tensile Stress ◽  
Testing Machine ◽  
Plain Concrete ◽  
Acquisition System ◽  
Direct Tension ◽  
Stress Strain ◽  
Deformation Response ◽  
Damage Process ◽  
Dynamic Acquisition

The tensile properties of plain concrete are very important for the concrete structural design, and the complete tensile stress-strain curve is essential for creating accurate and reliable designs, especially when considering special load cases such as earthquakes and impacts. To study the complete tensile stress-deformation response of plain concrete, the direct tension tests were conducted on a novel thermal tensile testing machine (TTTM), which was reformed from a hydraulic universal testing machine (UTM). Acoustic emission (AE) technology was applied to monitor the damage process of plain concrete in tests. The TTTM was powered by the thermal expansion of loading columns, and had a stiffness similar to the specimen, thus eliminating the potential AE noises in the UTM, and simulating the rapid fracture process in real concrete structures. A static-dynamic acquisition system was established to obtain the complete tensile stress-strain curves, of which the data before and at the fracture moment were respectively acquired by the static acquisition system and the dynamic acquisition system. The AE technology is a useful approach to analyze the damage process of concrete, and makes it feasible to determine the damage state and the fracture location of the specimen in real time.

Design of Multi-Channel Data Acquisition System Based on PXI 6281

2010 ◽  
Vol 34-35 ◽  
pp. 1739-1741
Author(s):  
Feng Huang ◽  
Jian Kai Zhao
Keyword(s):  
Data Acquisition ◽  
Real Time ◽  
Reference Value ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Motor Speed ◽  
Time Data ◽  
Maintenance Costs ◽  
Speed Measurement ◽  
Analog Channel

The paper designed a multi-channel data acquisition system based on PXI 6281. It used DAQmx technology in LabVIEW for synchronous analog channel data acquisition. It realized multi-channel real-time data acquisition, processing, display and data auto-saving. Data acquisition system consists of three major modules: the pressure measurement module, the motor speed measurement modules and real-time temperature measurement module. It has advantage of short cycle of technological upgrading, development and low maintenance costs. It has some reference value for other data acquisitions.

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