Corona Current Data Acquisition Card Based on USB Bus in Extra High Voltage Environment

2016 ◽  
Author(s):  
Li Qi ◽  
Liu Yingyi ◽  
Lv Jianxun ◽  
Liu Yuanqing
Keyword(s):  
Data Acquisition ◽  
High Voltage ◽  
Current Data ◽  
Corona Current ◽  
Usb Bus ◽  
Data Acquisition Card ◽  
Extra High Voltage

A Preliminary Study on CSAMT Anti-Jamming Transmitter System

2014 ◽  
Vol 962-965 ◽  
pp. 317-321
Author(s):  
Dang Li ◽  
Jun Lu Wang ◽  
Yong Li ◽  
Jian Hua Li ◽  
Pin Rong Lin
Keyword(s):  
Data Acquisition ◽  
High Voltage ◽  
High Speed ◽  
Low Voltage ◽  
Host Computer ◽  
Good Prospect ◽  
Interference Signal ◽  
Computer Data ◽  
Random Code ◽  
Data Acquisition Card

On the basis of the relevant identification theory of pseudo-random code signal, the signals of CSAMT are divided into three parts according to the frequency of the signal. The signals which are susceptible to 50Hz interference signal and its harmonic components should be set by pseudo-random code way. Others are set by single square waveform way. The Control and signal generation software of the transmitter system is built on the advanced virtual instrument platform, LabVIEW. The hardware of the transmitter system is mainly composed of host computer, data acquisition card, high-speed optocoupler, IGBT driver module and four IGBT switches. The data acquisition card generate PWM signals, the high-speed optocoupler isolates low-voltage part and high-voltage part. IGBT drive module and four IGBT switches constitute high-voltage part. Entire transmitter system is suitable for different environments and research tasks, the transmit frequency are adjustable, and the pseudo-random code signal has strong capability to suppress the interference signals. The control software on host computer is simple and clear. There is good prospect for the use.

The Design of the Dynamic Detection System for the Screw’s Lead Precision Testing

2013 ◽  
Vol 706-708 ◽  
pp. 1055-1058
Author(s):  
Xian Guang Fan ◽  
Xin Wang ◽  
Yang Lu ◽  
Fan Li ◽  
Yong Zuo
Keyword(s):  
Data Acquisition ◽  
Motion Control ◽  
Dynamic Testing ◽  
Detection System ◽  
Control Card ◽  
Motion Control Card ◽  
Usb Bus ◽  
Data Acquisition Card ◽  
Dynamic Detection ◽  
Circular Grating

For the screw’s lead precision dynamic testing needs, the hardware of the design includes two parts: the motion control card and the data acquisition card. We use the motion control card (GT200-SV) as the circular grating and long grating motor controller, and the data acquisition card is consist of FPGA and DSP. FPGA is the core device to realize the synchronous dynamic grating signal and inductive signal data acquisition and DSP is used to realize the function of decoding and communicating to PC by the USB bus protocol. Finally data are evaluated by the software on the computer. The acquisition speed of Screw’s lead precision dynamic detection system can reach 20 KHZ, and it has been successfully applied to a certain type of screw’s lead precision dynamic detection device in a company.

NEW APPROACHES TO IMPROVE EDUCATIONAL AND RESEARCH CAD OF HIGH AND EXTRA-HIGH VOLTAGE OVERHEAD TRANSMISSIONS LINES

2018 ◽  
Author(s):  
Валентин Горин ◽  
Valentin Gorin ◽  
Николай Давидсон ◽  
Nikolay Davidson ◽  
Р. Пуриши ◽  
...  
Keyword(s):  
High Voltage ◽  
New Approaches ◽  
Extra High Voltage

Najczęściej występujące uszkodzenia fundamentów słupów linii elektroenergetycznych najwyższych napięć i sposoby ich napraw

2020 ◽  
Vol 29 (4) ◽  
pp. 461-473
Author(s):  
Joanna Witkowska-Dobrev ◽  
Anna Brzezińska ◽  
Olga Szlachetka
Keyword(s):  
High Voltage ◽  
Surface Defects ◽  
Power Line ◽  
Small Surface ◽  
On Site Inspection ◽  
Degree Of Damage ◽  
Extra High Voltage

The paper consists of the discussion of issues related to the durability of foundations of extra high voltage (EHV) power line poles and possibilities of their renovation. The research part is the diagnostics of selected foundations of the EHV line poles (400 kV) Wielopole–Noszowice. During the on-site inspection, it was found that there are chipping and small surface defects, and in some cases losses of the reinforcement cover without visible pits. Based on the degree of damage, the scope of non-structural repairs and anti-corrosive protection was determined, presenting the next stages of their implementation.

System for Data Acquisition from High Voltage Terminals

1972 ◽  
Vol 43 (2) ◽  
pp. 230-232 ◽  
Author(s):  
George W. York ◽  
John T. Park ◽  
James J. Miskinis ◽  
David H. Crandall ◽  
Victor Pol
Keyword(s):  
Data Acquisition ◽  
High Voltage
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