Now showing items 1-2 of 2

    • 25-kHz Frequency Ultrasonic Scaler 

      พุฒิทอง, ชุมพล; สุวรรณแพทย์, ธรรมรัตน์; กรีถาวร, ไพรัตน์; ดุสิตากร, พนา (2012-07-28)
      This paper presents the design and construction of an ultrasonic scaler. The principal of Phase-Locked Loop circuit inside the IC 4046B controls the 25-kHz frequency generator with constant phase and frequency.The coil ...
    • Board Led Display Dot Matrix Controled by Microcontroler with Internet System 

      เนตรโพธิ์แก้ว, ศุภวุฒิ; วรรณการ, พูนศรี; ดุสิตากร, พนา (Rajamangala University of Technology Phra Nakhon, 2010-02-28)
      This research is Design and construction board led dot matrix was create for study about microcontroller. It apply to use in communication & information indoor type by sending messages from computer on internet network ...