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This paper presents a comprehensive numerical study of the performance of a capacitive humidity sensor for heating, ventilation, and air conditioning (HVAC) applications. The proposed sensor comprises a sensing layer sandwiched between an array of top and bottom electrodes. A combination of both parallel plate and interdigitated electrode arrangements is considered to achieve their distinctive adv...Show More
In a 256-channel electrode cap for electroencephalogram (EEG) acquisition, the inter-space between adjacent electrodes is around 20mm. Theoretical and experimental evidence predict that improving the density of electrode can get more information from the added electrodes. 10mm or less center distance, corresponding to 1000 electrodes on a full head EEG cap, might be a more proper density to curren...Show More
The electrode system is one of the most sensitive and crucial parts in EIT system. In this paper, a method for EIT electrode structure and parameter optimizing design, took example for compound electrode, has been presented, which is based on the coercive equipotential node model of line electrode. A simulation research software platform for electrode structure and parameter optimizing design has ...Show More
Parallel or concurrent stimulation in an epiretinal neuroprosthesis is likely necessary in order to deliver sufficient phosphenes for effective vision. Important issues with concurrent stimulation are the effect of current distribution which introduces current leakage or ‘cross talk’ between adjacent electrodes and charge recovery which determines balanced charge being delivered/recovered at each ...Show More
Comparing to other operations, the splitting of droplet always need a higher voltage. The ways of reducing voltage has investigated. In this paper, a study is presented to investigate the best electrode shape of splitting droplet. A comparison about the droplet's fissility of different electrode shapes has been investigated in the experiments. A new electrode shape is proposed which provides a pai...Show More
The traditional capacitive touch electrodes have the problems of low noise resistance and low resolution, and the traditional touch detection corresponds to a larger circuit area and higher power consumption. In this paper, we proposed a novel design of capacitive touch electrode pattern with the detection method. Based on the optimized of general rectangular or square touch electrode pattern, the...Show More
Muscle activity monitoring in dynamic conditions is a crucial need in different scenarios, ranging from sport to rehabilitation science and applied physiology. The acquisition of surface electromyographic (sEMG) signals by means of grids of electrodes (High-Density sEMG, HD-sEMG) allows obtaining relevant information on muscle function and recruitment strategies. During dynamic conditions, this po...Show More
A high-voltage (HV) integrated circuit has been demonstrated to transport fluidic droplet samples on programmable paths across the array of driving electrodes on its hydrophobically coated surface. This exciter chip is the engine for dielectrophoresis (DEP)-based micro-fluidic lab-on-a-chip systems, creating field excitations that inject and move fluidic droplets onto and about the manipulation su...Show More
The authors have proposed the tripolar electrode stimulation method (TESM) for narrowing the stimulation region and continuously moving the stimulation site for cochlear implants. The TESM stimulates the auditory nerve array using three adjacent electrodes which are selected among the electrodes of an electrode array within the lymphatic fluid. Current is emitted from each of the two lateral elect...Show More
This paper reports on the characterization and intracortical recording performance of high-density complementary-metal–oxide–semiconductor (CMOS)-based silicon microprobe arrays. They comprise multiplexing units integrated on the probe shafts being part of the signal transmission path. Their electrical characterization reveals a negligible contribution on the electrode impedances of $139 \pm 11\ ...Show More
This paper presents a novel micro electret power generator as self-powered railway sensor for both horizontal oscillation detection and rotation speed monitoring. Both the electret material and counter electrode are micro-patterned with square-shaped blocks and connected diagonally. By this way, capacitance variation can be maximized in either horizontal oscillation or axial rotation. From the exp...Show More
Micro-manipulation technology is the basis for investing the characteristics of micro-particles, which could also promote their applications in biomedical engineering, environmental monitoring, or some other fields. As a non-contact mechanism, dielectrophoresis could be used to manipulate batches of micro-particles at a high rate of speed accurately. In this paper, a multilayer composite array ele...Show More
Automatic EEG-processing systems such as seizure detection systems are more and more in use to cope with the large amount of data that arises from long-term EEG-monitorings. Since artifacts occur very often during the recordings and disturb the EEG-processing, it is crucial for these systems to have a good automatic artifact detection. We present a novel, computationally inexpensive automatic arti...Show More
Electrical Impedance Tomography (EIT) reconstructs images of electrical tissue properties within a body from electrical transfer impedance measurements at surface electrodes. Reconstruction of EIT images requires the solution of an inverse problem in soft field tomography, where a sensitivity matrix, J, of the relationship between internal changes and measurements is calculated, and then a pseudo-...Show More
Digital Microfluidic Biochip (DMFB) is a ground-breaking invention in many areas of Microelectronics, Biochemistry, and Biomedical sciences. It is also known as `Lab-on-a-Chip' for its performance as an alternative for laboratory experiments. Various types of diagnosis procedures are performed on it through a sequence of modular operations like sample preparation, mixing, and detection. Mixing is ...Show More
This paper discusses the normal working mechanism of trigatron gap which leads to the erosion of trigger electrode. The theory of microexplosion is based on the gas discharge theory, explosive electron emission theory and thermodynamical theory, and the erosion model of trigger electrode can be obtained by microexplosion theory. The specific action is an important physical quantity in the theory o...Show More
The electrical capacitance tomography (ECT) system is applied to identify the flow regime of gas-solid flows in horizontal pipeline with 10 mm inner-diameter in a pulverized coal dense-phase pneumatic conveying experimental setup at the pressure up to 4.0 MPa and the solid-gas ratio up to 11.73 kg/kg. 8-electrode thick-pipeline and small-diameter ECT sensor applied in high pressure is fabricated, ...Show More
Emotion recognition has become a research focus in the field of human-computer interaction (HCI). As an excellent physiological signal, electroencephalographic (EEG) is considered to be a favorable tool for emotion recognition. Most traditional methods focus on extracting features in time domain and frequency domain but the adjacent information and asymmetric information from adjacent and asymmetr...Show More
Hepatic resection is the current standard treatment for hepatic malignancies. During hepatic resection part of the liver containing the tumor is surgically removed. This type of surgery is associated with high blood loss of /spl sim/1 L. Blood loss is associated with increased complication rates, prolonged hospital stay and reduced patient survival, especially when transfusion is required. We pres...Show More
This paper presents experimental investigation on plasma anti-icing in icing wind tunnel based on two different electrode layouts. Under the same excitation parameters, the voltage and current waveform, surface temperature distribution and dynamic anti-icing process of the plasma actuator are collected and analyzed, from which the influence of electrode layout on anti-icing effect is studied. With...Show More
Electrode is a vital component in the digital microfludic based on electrowetting on dielectric(EWOD), in order to improve the driving performance, this paper proposed a novel improved crescent electrode shape, establish the EWOD device model through the finite element method(FEM) to compute the driving force of the droplet. The result shows that droplet's electrostatic force on the proposed elect...Show More
Recent clinical trials using modified cochlear implants employ a small number of electrodes to stimulate surviving retinal neurons in blind patients and indicate that spatially-mapped phosphenes may indeed be elicited through these means. The next obvious step forward in the path toward achieving a useful visual prosthesis for the blind will be to increase the quantity of stimulation sites such th...Show More
Electrical impedance tomography (EIT) is a powerful tool for mapping the electrical property of the estimated objects. The quality of impedance image is limited by the number of electrodes. In this paper we proposed a pseudo electrode driven patterns for electrical impedance tomography. By changing the measuring sites of the physical electrodes we can obtain the expanded pseudo electrodes. The mod...Show More
Electrode shift is considered a pivotal and unavoidable factor affecting the robustness of myoelectric pattern recognition (MPR). Nevertheless, most existing solutions face challenges in simultaneously ensuring plug-and-play compatibility and achieving high classification accuracy. To address this challenge, this study presents a novel method for adaptively calibrating testing data samples using a...Show More