7 research outputs found
Intelligent monitoring & management of light sources
A new method for the monitoring of filament lamps and low pressure discharge lamps has been developed. The new technique monitors the electrical characteristics of the lamp to provide real time analysis of the lamp's condition, without the need for additional wires or expensive light sensors. The advent of low-cost microcontrollers developed for electrical metering applications means that not only is this technique technologically practical, it is also financially viable. The deployment of this technology, particularly in the case of UV water sterilizers, would improve safety and save the significant expense and environmental impact of unnecessary replacement lamps
Performance of energy saving lamps on power quality and luminous properties under voltage decreasing 240V–100V
International audienc
Improved micro-contact resistance model that considers material deformation, electron transport and thin film characteristics
This paper reports on an improved analytic model forpredicting micro-contact resistance needed for designing microelectro-mechanical systems (MEMS) switches. The originalmodel had two primary considerations: 1) contact materialdeformation (i.e. elastic, plastic, or elastic-plastic) and 2) effectivecontact area radius. The model also assumed that individual aspotswere close together and that their interactions weredependent on each other which led to using the single effective aspotcontact area model. This single effective area model wasused to determine specific electron transport regions (i.e. ballistic,quasi-ballistic, or diffusive) by comparing the effective radius andthe mean free path of an electron. Using this model required thatmicro-switch contact materials be deposited, during devicefabrication, with processes ensuring low surface roughness values(i.e. sputtered films). Sputtered thin film electric contacts,however, do not behave like bulk materials and the effects of thinfilm contacts and spreading resistance must be considered. Theimproved micro-contact resistance model accounts for the twoprimary considerations above, as well as, using thin film,sputtered, electric contact
Leakage Testing Handbook
Leakage testing handbook giving fundamentals, theory, methods, detector equipment, and test medi
Proceedings of the 2018 Canadian Society for Mechanical Engineering (CSME) International Congress
Published proceedings of the 2018 Canadian Society for Mechanical Engineering (CSME) International Congress, hosted by York University, 27-30 May 2018