Electrical parameters measurement by simulated ideal behavior of current in conductive environment

Author(s):  
M. Caciotta
2017 ◽  
Vol 68 (7) ◽  
pp. 74-77 ◽  
Author(s):  
Gabriel Cibira

Abstract When measuring optical parameters of a photovoltaic silicon cell, precise results bring good electrical parameters estimation, applying well-known physical-mathematical models. Nevertheless, considerable re-combination phenomena might occur in both surface and intrinsic thin layers within novel materials. Moreover, rear contact surface parameters may influence close-area re-combination phenomena, too. Therefore, the only precise electrical measurement approach is to prove assumed cell electrical parameters. Based on theoretical approach with respect to experiments, this paper analyses problems within measurement procedures and equipment used for electrical parameters acquisition within a photovoltaic silicon cell, as a case study. Statistical appraisal quality is contributed.


2013 ◽  
Vol 273 ◽  
pp. 424-427 ◽  
Author(s):  
Tao Hou ◽  
Yan Hong Guo

This design is a full-featured, high precision power meter on-site calibration device and integrated electrical parameter measuring device. The internal use of SCM control, you can not open the instrument case, through the keys with precision adjustment, thus increasing the reliability and stability. This study projects able to keep the case of electricity meters for a variety of electrical power meter, indicating a variety of instrumentation and electrical power transmitters to provide on-site instruments detection, but also to voltage, current, power, power factor, phase, frequency and other electrical parameters measurement.


2013 ◽  
Vol 06 (06) ◽  
pp. 661-668 ◽  
Author(s):  
Shengjie Yan ◽  
Yu Zhou ◽  
Bowen Yan ◽  
Dianli Li ◽  
Chengli Song ◽  
...  

2020 ◽  
pp. 89-96
Author(s):  
Sergei S. Kapitonov ◽  
Alexei S. Vinokurov ◽  
Sergei V. Prytkov ◽  
Sergei Yu. Grigorovich ◽  
Anastasia V. Kapitonova ◽  
...  

The article describes the results of comprehensive study aiming at increase of quality of LED luminaires and definition of the nature of changes in their correlated colour temperature (CCT) in the course of operation. Dependences of CCT of LED luminaires with remote and close location of phosphor for 10 thousand hours of operation in different electric modes were obtained; the results of comparison between the initial and final radiation spectra of the luminaires are presented; using mathematical statistics methods, variation of luminaire CCT over the service period claimed by the manufacturer is forecast; the least favourable electric operation modes with the highest CCT variation observed are defined. The obtained results have confirmed availability of the problem of variation of CCT of LED luminaires during their operation. Possible way of its resolution is application of more qualitative and therefore expensive LEDs with close proximity of phosphor or LEDs with remote phosphor. The article may be interesting both for manufacturers and consumers of LED light sources and lighting devices using them.


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