To real-time monitor the cell viability an important task in cell culturing associated applications. The bioimpedance spectroscopy is one of the useful techniques for this study. In this paper, a culture dish with an electrode-array is designed for the bioimpedance based cellular characterization. The electrode-array containing 32 electrodes is firstly fabricated using the Micro-ElectroMechanical-System (MEMS) technology, and then attached on the inner side of culture dish. Two types of current patterns of so-called the opposite and adjacent current patterns are then applied for the performance assessment of the proposed electrode-array. From the experimental results, the gap between the electrodes and the width of electrodes are shown to be very homogenous. The proposed culture dish with an electrode-array is demonstrated to be feasible in bioimpedance spectroscopic measurement of cellular electrical property.

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Pedometers are known to have steps estimation issues. This is mainly attributed to their innate acceleration-based measuring sensory. This work proposes a novel implementation of microcontroller and accelerometer sensor, based for three step-size models pedometer in calorie consumption calculation. To verify the output voltage stability of accelerometer sensor, the methods of statistics analysis are introduced to extract the useful features. Three kinds of different steps are employed to obtain the analytic data. The proposed pedometer dimension of a proto-type is 68 mm (L) 9 42 mm (W) 9 15 mm (H).