The Journal of King Mongkut's University of Technology North Bangkok
วารสารวิชาการพระจอมเกล้าพระนครเหนือ

Vissavavit Rachnarong
Department of Electronics Technology, Faculty of Science, Ramkhamhaeng University, Bangkok,
Thailand

Sappasit Thongmee
Department of Electronics Technology, Faculty of Science, Ramkhamhaeng University, Bangkok,
Thailand

Sawatsakorn Chaiyasoonthorn
Department of Electronics Technology, Faculty of Science, Ramkhamhaeng University, Bangkok,
Thailand