The article deals with an alternative solution of communication for the educational model of magnetic levitation produced by Humusoft company. The new proposal is based on the use of arduino due microprocessor. The re...
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The article deals with an alternative solution of communication for the educational model of magnetic levitation produced by Humusoft company. The new proposal is based on the use of arduino due microprocessor. The resulting solution is tested by means of a simple controller based on the inverse dynamics method.
The characterization of soil is essential for the evaluation of seismic hazard, because soil properties strongly influence the damage caused by earthquakes. Methods based on seismic noise are the most commonly used in...
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The characterization of soil is essential for the evaluation of seismic hazard, because soil properties strongly influence the damage caused by earthquakes. Methods based on seismic noise are the most commonly used in soil characterization. Concretely, methods based on seismic noise array measurements allow for the estimation of Rayleigh wave dispersion curves and, subsequently, shear-wave velocity profiles. The equipment required for the application of this technique is usually very expensive, which could be a significant economic challenge for small research groups. In this work, we have developed a wireless multichannel seismic noise recorder system (Geophonino-W), which is suitable for array measurements. Each station includes a microcontroller board (arduino), a conditioning circuit, an Xbee module, an SD card, and a GPS module. Several laboratory tests were carried out in order to study the performance of the Geophonino-W: A frequency response test (impulse response and noise);synchronization test;and battery duration test. Comparisons of Geophonino-W with the commercial systems and field measurements were also carried out. The estimated dispersion curves obtained using the proposed system were compared with the ones obtained using other commercial equipment, demonstrating the effectiveness of Geophonino-W for seismic noise array measurements. Geophonino-W is an economic open-source and hardware system that is available to any small research group or university.
Ambulatory recording of bio-signals has been emerging as a quintessential strategy for manifestation of certain severe paroxysmal diseases in order to prevent it beforehand In this study, a non-invasive wireless EEG m...
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ISBN:
(纸本)9781538618882
Ambulatory recording of bio-signals has been emerging as a quintessential strategy for manifestation of certain severe paroxysmal diseases in order to prevent it beforehand In this study, a non-invasive wireless EEG monitor for remote sensing and wireless transmission of EEG to a host PC along with recording the data for further classification has been proposed It is a single channel system in which signal collected by three scalp electrodes is amplified using AD620 instrumentation amplifier, followed by analog filtering to eliminate artifacts and select the frequency of interest To fulfill the requirement of A/D conversion and wireless transmission of EEG, two arduino due microcontrollers based on Atmel SAM3X8E ARM CORTEX-M3 CPU and a pair of RF module RKI-1197 have been incorporated.
This paper describes a system design for testing implantable devices, namely pacemakers, that measures selected pacemaker parameters to indicate their proper functionality or potential malfunction. The resulting signa...
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ISBN:
(数字)9781728175423
ISBN:
(纸本)9781728175430
This paper describes a system design for testing implantable devices, namely pacemakers, that measures selected pacemaker parameters to indicate their proper functionality or potential malfunction. The resulting signals are interpreted and plotted using the programming interface of MATLAB. The efficiency of the resulting wiring is tested on real pacemakers and compared to the values of commercial programmers. The system is designed for easy and universal measurement of pacemaker parameters for learning purposes in the teaching process.
The analysis of the main trends in the development of automation in the field of beekeeping, in particular the use of modern network technologies, sound recognition technologies for monitoring the state of bee-familie...
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The analysis of the main trends in the development of automation in the field of beekeeping, in particular the use of modern network technologies, sound recognition technologies for monitoring the state of bee-families. Considered the main existing recognition technologies, requirements for the hardware of monitoring systems. The possibility of implementing a prototype based on the arduino platform with Wi-Fi modules ESP8266, advantages and disadvantages of this solution was considered. As a result, the conclusion of the feasibility of using the 32-bit STM32 microcontroller with a core ARM Cortex-M4, and for developing a prototype device - the STM32F4DISCOVERY evaluation board. The features of development of projects on STM32, a choice of software for development are also considered.
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