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西安交通大学 [2]
长春光学精密机械与物... [1]
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会议论文 [2]
期刊论文 [1]
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Research on current sensor adapted for partial discharge detection in inter-turn insulation of wind turbine generator
会议论文
作者:
Zhang, Tianlong
;
Liu, Xuezhong
;
Tian, Shijin
;
Liu, Guanfang
;
Lei, Pingzhen
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  |  
浏览/下载:9/0
  |  
提交时间:2019/11/26
Artificial defects
Current sensors
Monitoring and diagnosis
Output voltage signals
Partial discharge detection
Partial discharge signal
Transfer characteristics
Turn insulations
Measurement of axial dynamic clearance in scroll compressor
期刊论文
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University, 2008, 卷号: 42, 期号: 7, 页码: 795-798+847
作者:
Yang, Qichao
;
Li, Liansheng
;
Zhao, Yuanyang
;
Shu, Pengcheng
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  |  
浏览/下载:2/0
  |  
提交时间:2019/12/18
Axial clearance
Data acquisition system
Eddy current displacement sensors
Eddy current sensors
Experimental procedure
Installation methods
Output voltage signals
Scroll air compressor
Design of an improved data signal timing for an amorphous silicon active-matrix organic LED display (EI CONFERENCE)
会议论文
ICO20: Display Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Liao Y.-P.
;
Zhang Z.-W.
;
Shao X.-B.
;
Liu J.-E.
;
Guo-zhu F. U.
;
Jing H.
;
Qiu F.-B.
;
Kai M. A.
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  |  
浏览/下载:12/0
  |  
提交时间:2013/03/25
The most critical issue in the design of an active matrix organic light emitting diode (AM-OLED) display pixel is the pixel to the pixel luminance uniformity. By substituting four-thin film transistor (TFT) pixel circuit for two-TFT pixel circuit
the luminous uniformity has great improved
but it requires more components than the two-TFT pixel circuit. There are some barriers needed to resolve to utilize hydrogenated amorphous silicon transistor to lit OLED
such as low field effect mobility
low output current and threshold voltage shift. In this article
a two-a-Si:H TFT pixel circuit was designed
which consisted of one named switching TFT and the other named driving TFT. The driving TFT gate line structure modified and a data signal timing improved were reported. The modified driving TFT can provide enough current about 30 microampere to lit OLED and the novel data signal timing can provide a constant current to OLED by restraining the driving TFT threshold voltage variation. In the novel data signal timing
the control signals to the driving TFT gate include a data signal and a reverse data signal. The signals alteration is performed either at a frame rate or at a line rate. By experiments
the driving TFT output current value is plotted as a function of the time in different reversed voltage value. When the magnitude of the positive data signal and the negative data signal is equal
the variety of Vth
is smallest
about 1.28V after a fixed stressing time of 1.33104min
which shows the novel data signal timing can improved the driving TFT output-input current stability.
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