This paper proposes a novel approach for measuring Electrical Impedance Tomography (EIT) of a living tissue in a human body. EIT is a non-invasive technique to measure two or three-dimensional impedance for medical diagnosis involving several diseases. To measure the impedance value electrodes are connected to the skin of the patient and an image of the conductivity or permittivity of living ti...

BACKGROUND Unintended forgetfulness is the most common cause of medication nonadherence. MemoPatch(®) is an electronic skin patch intended to deliver discreet tactile medication reminder stimuli. This study aimed 1) to evaluate, within an experimental setup, the detectability and acceptability of fifteen continuous bipolar pulse signals; 2) to identify variables, if any, associated with differe...

On-chip conductors such as clock and power distribution networks require accurately modeling skin effect. Furthermore, to incorporate skin effect in the existing generic simulation tools such as SPICE, simple frequency independent lumped-element circuit models are needed. A rule-based R-L circuit model is proposed in this paper that predicts the skin effect in the entire frequency range accurat...

Skin effect of lead-free solder joints is investigated over a wide frequency band. Contrary to common believe that ‘effective impedance of solder alloys increases with frequency’, resistance tends to saturate when frequency reaches a critical value, 10 MHz for SAC solder alloys. Negative surface impedance growth rate is observed when employs square waveform AC current loading at high current de...

This paper presents a novel electrical needle integrated with microelectrodes, which can measure the electrical impedance of biotissues in real-time. The microelectrodes on the surface of a fine-needle (400 μm in diameter) were fabricated by using a flexible film photomask. This photomask allows a conformal contact with the curved surface, so the designed patterns on the photomask can be transf...

Whole-body-contact sensing will be crucial in the quest to make robots capable of safe interaction with humans. This paper describes a novel design and a fabrication method of artificial tactile sensing skin for robots. The manufacturing method described in this paper allows easy filling of a complex microchannel network with a liquid conductor (e.g., room temperature ionic liquid (RTIL)). The ...