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Micro Electro-Mechanical Systems (MEMS) accelerometers are widely used in the automotive and aeronautics fields and are becoming extremely popular in a wide range of consumer electronics products. The cost of testing is a major one within the manufacturing process, because MEMS accelerometer characterization requires a series of tests that include physical stimuli. The calibration and the functional...
The aim of this work is the development of a computationally low-cost scheme for feature extraction and the implementation of an One-class Support Vector Machine classifier for people fall detection, by using a tri-axial MEMS wearable wireless accelerometer, managed by a stand-alone PC through ZigBee connection. The proposed approach allows the generalization of the detection of fall events in several...
Gas detector of single photons are required in Cherenkov imaging counters, in particular when large surface must be instrumented. The present detectors suffer of severe limitations usually related to the ion and photon back flow to the photocatode. The principle and the status of novel photon counters based on Micro Pattern Gaseous Detector is discussed.
In this paper, we present a calibration technique for controlling the magnetic field emitted by an antenna without measuring that magnetic field or the current through the antenna. Using a predictive algorithm and without adding hardware to perform test measurements, the system is able to determine the duty cycle of a class-D power amplifier with a deviance lower than 0.5 %. between the simulated...
During recent years, Wireless Sensor Networks captured the imagination of many researchers with number of applications growing rapidly. Power consumption is (most often) the dominant constraint in designing such systems. This constraint has multi-dimensional implications such as battery type and size, energy harvester design, lifetime of the deployment, etc. Energy neutral system implementation is...
The integration of knowledge representation and reasoning techniques (originally devised for the Semantic Web) in most common Wireless Sensor Networks (WSNs) protocols can allow to reach higher levels of autonomicity w.r.t. classic network architectures that basically provide only simplistic discovery capabilities. This paper presents a complete Semantic Sensor Network (SSN) framework, supporting...
In this paper a dedicated integrated front-end for the Triple-GEM (Gas Electron Multiplier) detector is presented. The design has been realized in 0.13 μm CMOS technology. This system aims to improve performance with respect to the state-of-the-art on these types of detectors, regarding adaptability, portability, power consumption and on-chip data processing. The front-end is composed by 8-input-channels...
This paper describes the Micro-for-Nano (M4N) approach as effective solution to overcome challenges related to the nanomaterial assembly with electrodes, the low-noise measurement of nanomaterial electrical properties and the CMOS design of the nanosensor electronic interface. This paper presents both the fabrication process of a nanodevice onto the IC surface using Dielectrophoresis (DEP) and the...
The performance and accuracy of micro- and nano-positioning systems are directly linked to the measurement device used to close the associated control loop. In this work we propose, design, and test an electronic interface for a new position and displacement transducer based on resonant cavities. This type of transducer has been proven to achieve resolutions in the nanometer range when the detection...
Fully mobile and wireless motion capturing is a mandatory requirement for undisturbed and non-reactive analysis of human movements. Therefore, inertial sensor platforms are used in applications like analysis of training sessions in sports or rehabilitation, and allow non-restricted motion capturing. The computation of the required reliable orientation estimation based on the inertial sensor RAW data...
In the last decade, many studies on sensors development have been published, but there are few papers on printed temperature sensors on plastic susbtrates. This paper deals with the development of passive devices on large area applications such as temperature sensors. The process flow is a fully screen printed technology that uses exclusively solution-processed materials on flexible substrates. Temperature...
We report the experimental study of noise in electrochemical biosensors as related to voltage and concentration. A comparison with experiments is performed for H2O2 and Ferrocyanide with bare sensors, and with sensors functionalized with Multi-Walled Carbon Nanotubes (MWCNT) modified electrodes. Chronoamperometry measurements at different voltages were carried out, followed by fast Fourier transform...
This paper presents a remotely powered implantable heart monitoring system for freely moving animals. The system measures the blood pressure in the left ventricle of the heart and transmits the data to a database unit. The implanted unit is remotely powered over 25 mm at 8 MHz and has autonomous power control system for changing received power levels due to the moving animal. The blood pressure is...
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