scholarly journals Characteristic analysis of double excitation sensor based on F-30 multi-dimensional digital magnetic measurement system

2019 ◽  
Vol 2019 (23) ◽  
pp. 8876-8879
Author(s):  
Yanhai Zhang ◽  
Xiaoli Xu ◽  
Yunbo Zuo ◽  
Xiangqi Zhang
Keyword(s):  
Measurement System ◽  
Magnetic Measurement ◽  
Characteristic Analysis ◽  
Double Excitation

scholarly journals Magnetic measurement system for harmonic analysis of LBL SSC model dipoles and quadrupoles

1988 ◽  
Vol 24 (2) ◽  
pp. 958-961 ◽  
Author(s):  
M.I. Green ◽  
P.J. Barale ◽  
W.S. Gilbert ◽  
W.V. Hassenzahl ◽  
D.H. Nelson ◽  
...  
Keyword(s):  
Harmonic Analysis ◽  
Measurement System ◽  
Magnetic Measurement

Research on Modulation Method and Characteristic Analysis of Faraday DC Optical Measurement System

2012 ◽  
Vol 614-615 ◽  
pp. 1289-1294
Author(s):  
Lu Meng ◽  
Rui Dong ◽  
Qing Fu Xiong ◽  
Qian Wang
Keyword(s):  
Measurement System ◽  
Optical Measurement ◽  
Current Transformer ◽  
Research Field ◽  
Modulation Method ◽  
Measured Signal ◽  
Frequency Noise ◽  
Signal Source ◽  
Characteristic Analysis ◽  
Optical Measurement System

The optical current transformer is an important content in smart grid research field. When the Faraday DC optical measurement system was used in DC current measurement, the low frequency noise caused by photo detector and measured signal were overlapped, which makes the measuring accuracy decrease. To solve this problem, the noise of photo detector is analyzed. Then, the frequency modulation is proposed for spectrum shifting. Furthermore, the principle of modulation method is deduced in formula, and the characteristics of deferent frequency are also analyzed. On this base, modulation signal source is designed. With LabVIEW program, the signal from modulation source is acquainted and analyzed. The results show that this modulation method can realize spectrum shifting and the designed signal source is able to generate waveform needed.

Design and Realization of the Dynamic Magnetic Measurement System for Soft Magnetic Material

2011 ◽  
Vol 346 ◽  
pp. 719-723
Author(s):  
Liang Zheng ◽  
Zhi Hua Ying ◽  
Wei Peng Kong ◽  
Feng Sun ◽  
Wei Wei Hu ◽  
...  
Keyword(s):  
Magnetic Material ◽  
Measurement System ◽  
Virtual Instrument ◽  
High Speed ◽  
Magnetic Measurement ◽  
Excitation Power ◽  
Soft Magnetic Material ◽  
Soft Magnetic ◽  
Digital Integration ◽  
High Frequency Ac

A dynamic magnetic measurement system for soft magnetic material based on virtual instrument technology is presented. High frequency AC excitation power supply is adopted to drive soft magnetic material. High speed data transport system composed by FPGA chip ALTERA EP1C12Q240C8N and USB microcontroller Cypress CY7C68013A. The problem of phase-shift of hardware integrator which is difficult to control is solved by digital integration. LabVIEW with powerful data processing capabilities is used to simplifies the hardware structure and improve the testing accuracy and automation level of measurement. The paper also points out problems of digital integration and gives a solution.

scholarly journals Mobile magnetic measurement system for control of residual mechanical stresses in steel structures

2019 ◽  
Vol 29 (1) ◽  
pp. 047-054
Author(s):  
A. N. Stashkov ◽  
◽  
A. P. Nichipuruk ◽  
E. A. Schapova ◽  
◽  
...  
Keyword(s):  
Measurement System ◽  
Magnetic Measurement ◽  
Steel Structures ◽  
Mechanical Stresses
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