Design and implementation of a new thin cost effective AC hum based touch sensing keyboard

Although touch pads and screens have been widely researched recently, complexity and high cost have been major issues in their implementation. In this paper, we present a new touch-sensing technique for the implementation of a simple and cost-effective touch keyboard based on the AC hum phenomenon which exists in the vicinity of any AC source. The proposed technique has the advantage of being customizable according to the demands of the user. Moreover, it can be integrated with other applications as it can be made flexible, transparent, in any size and in any color. 2013 IEEE

Granite-based touch-sensing floor for machinery safety and exergaming

Touch-sensing floor technologies are attractive due their use in several applications. Such technologies include infrared, resistive, capacitive and pressure sensing. Nonetheless, these technologies require special tiles or costly setups. For simplicity and cost effectiveness, we propose a new touch-sensing that can use granite as the touch interface. This can be achieved by utilizing the effects of extremely low frequency fields on the human body and the electrical characteristics of the granite. Using the proposed technology, granite floors can be transformed into touch-sensing floors capable of human presence detection in various applications such as machinery safety and exergaming

Flexible ITO-free touch panel based on the effects of extremely low frequency electromagnetic fields

To overcome the high cost and limited availability of indium tin oxide (ITO) used in manufacturing touch panels, in this work a novel polymer-based touch panel is proposed. The proposed touch panel interface is mainly made from a composition of acrylic resin and Polyethylene glycol which are abundant and low-cost materials. The touch-sensing technology adopted for this touch panel is based on detecting the induced voltage on the human body resulting from the surrounding 50/60Hz electromagnetic waves of power lines. In addition to its low cost and good performance, the implemented touch panel is flexible, transparent and above all, its interface is made from high-resistivity materials offering promising alternatives to ITO in touch panels manufacturing

Journal of industrial microbiology

A novel concept to implement sensitive protective device for machinery based on the effects of ELF (Extremely Low Frequency) fields on the human body is proposed, designed, and tested in this paper. Although the proposed technique is relatively simple with significantly low implementation cost compared to other available techniques, its experimental results obtained in real-time at both laboratory and workshop environments reveal its potential effectiveness in minimizing hazards associated with machinery. 2013 IEEE