Home // International Journal On Advances in Networks and Services, volume 15, numbers 1 and 2, 2022 // View article
Authors:
Takaya Yoshitake
Shunkichi Takamatsu
Shinichiro Mito
Keywords: electrical power sensing; electric field; noncontact measurement; energy harvesting; SDG.
Abstract:
Power measurement of individual machines is required in factories for production control and energy conservation. Therefore, a power consumption monitoring sensor that can be easily retrofitted and requires minimal maintenance should be devised. In this study, we developed a contactless, wireless, and battery less alternating current (AC) apparent power and power factor sensor, wherein a current-sensing transformer serves not only as a noncontact current sensor but also as a power supply for the sensor. The AC voltage waveform was measured without a metal contact by using a piezoelectric film. A low-power circuit was designed to manage the power and measure the power factor from current and voltage waveforms. The prototyped sensor was tested in the factory. The data obtained by the field test were consistent with the results obtained from a commercially available power meter. The developed sensor can enable energy savings and carbon dioxide reduction in industrial applications.
Pages: 29 to 34
Copyright: Copyright (c) to authors, 2022. Used with permission.
Publication date: June 30, 2022
Published in: journal
ISSN: 1942-2644