Experimental contrivance of remotely accessible permanent magnet DC motor controlling

One of the big obstacles against the development of distance learning is the difficulty of realizing laboratory experiments via internet. Composing experimental contrivance that can be used remotely via internet is the most important stage to provide developing distance learning for applied sciences.In this thesis; we designed an experimental contrivance for permanent magnet brushed dc motor. We used the designed experimental contrivance and made experiments via internet and observed the real time results. We used a Java technology that is named as nonblocking input/output to develop client and server software. The used Java technology provided a remarkably increase of performance of getting, processing and displaying capabilities of client and server. The server communicates with the experimental contrivance by RS-232 standard. The server and client communicate with each other by TCP/IP protocol over the internet. We used pulse width modulation (PWM) to control speed of the motor. The designed experimental contrivance may need a lot of enhancements but it constitutes a basis for making laboratory experiments in distance learning. This thesis gives a contribution to real-time internet based laboratory studies.