L. Iuppariello, P. Bifulco , M. Cesarelli, S. Esposito, M. Nespoli, L. Foggia, F. Clemente
Virtual Reality, otherwise referred to as VR, is a new approach in stroke rehabilitation that is gaining popularity. VR allows us to combine Virtual Reality and the latest in computer technology to assist patients in improving their motor functioning in ways that are not possible through physical therapy alone. These aspects are at the base of the GRAIL, the new solution for gait analysis and gait training. GRAIL uses an instrumented dual-belt treadmill, a motioncapture system and synchronized Virtual Reality (VR) environments next several video cameras and EMG, to analyse and improving gait...
TC4 Symposium 2017
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Rok Tavčar, Dušan Agrež, Samo Beguš
This paper presents implementation and testing of the acoustical thermometer with a single waveguide. Proposed design has a few specific advantages against other types of acoustic designs with waveguides, such as smaller size, better sensitivity and the same common sound path. The paper describes each advantage and tests used to determine their usefulness. Finally it shows how to deal with disadvantages of this design, such as weak return signals and possible coincidences of the return signals. The instrument was calibrated at ice point and then tested in oil bath from -30 °C to 120 °C. In...
TC4 Symposium 2017
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Eduard Lunca, Silviu Ursache, Alexandru Salceanu
In the paper, the electric and magnetic fields from a relatively new design of 400 kV overhead transmission line used in the Romanian power system are computed and compared to the exposure limits established by the International Commission on NonIonizing Radiation Protection (ICNIRP) for the general public. The computations are carried out with two dedicated software tools, called PowerMag and PowerELT, which have been written in LabVIEW, based on a 2D quasi-static analytical approach. This approach, as well as the electric and magnetic field distributions obtained for the considered 400 kV...
TC4 Symposium 2017
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Alexandru-Constantin Podaru, Valeriu David, Oana Neacsu
A low-cost wearable system has been developed, that was used to record simultaneously the electrocardiographic signal (ECG) and photoplethysmographic signal (PPG).The prototype permits an offline working mode, being capable of recording both signals, ECG and PPG, on a memory card, using Arduinonano board. The recorded signals consist from the first derivation of ECG and the PPG signal collected from the left-hand index finger. First, we collected signals from several subject, in the same manner for all, before detecting the interested peaks from those signals, we removed the noise, from ECG...
TC4 Symposium 2017
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Linus Michaeli, Ján Šaliga, Imrich Andráš, Pavol Dolinský, Mária Gamcová
The laboratory stands controlled remotely allow students to perform laboratory exercises in the courses with need of experimental work. Accessibility of the virtual laboratory standsin situ and across the Internet was the basic condition. The control program was developed in the LabVIEW. Remote user can change measured subject remotely using web browser Internet Explorer or in situ by user interface on the control server near the laboratory equipment. User interface of all stands simulate real laboratory instruments. Virtual laboratory stands were designed for the courses of “Electronics”...
TC4 Symposium 2017
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Ovidiu Bejenaru, Eduard Lunca, Valeriu David
With a view to characterize the electromagnetic interferences (EMI) due to a model of Light Emitting Diode (LED) lamp used in street lighting, measurements of radiated emissions were conducted both in situ and in an Electromagnetic Compatibility (EMC) laboratory. The in situ measurements were carried out using an Anritsu MS2724B spectrum analyzer in conjunction with a directional antenna, in the frequency range from 20 MHz to 200 MHz, at 10 m distance from a number of LED lamps. The EMC laboratory measurements were conducted in compliance with the European Standard EN 55015, “Limits and...
TC4 Symposium 2017
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Zhaomin Shi, Jiangtao Zhang, Xianlin Pan, Qing He, Jun Lin
This paper describes the establishment of wideband power standard for traceable measurements of electrical power of sinusoidal signals. The voltage ranges from 10 V to 600 V and the current ranges from 1 A to 100 A at frequencies up to 100 kHz. The design of the power system and the components, including resistive voltage dividers (RVDs), current shunts and dual-channel digitizer have been presented. The amplitude errors of RVDs and shunts are calibrated and traceable to the dc standard based on the ac-dc transfer technique. The self-calibration of RVDs and current shunts in phase angle...
TC4 Symposium 2017
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Ionel Dumbravă, Georgiana Roşu, Ion Pătru, Aurelia Scornea, Octavian Baltag, Andrei Marinescu
Helmholtz coils (HC) are used to develop uniform magnetic fields for a variety of research applications. Helmholtz coils can be easily constructed and the fields easily calculated. This makes them especially useful in calibrating sensors and numerous other low-frequency magnetic-field testing applications. Such a calibration system with Helmholtz coils can be found in ICMET, operating at a frequency of 50 Hz. Recently, the issue was raised for calibration of certain measuring devices up to 10 kHz frequencies needed for measurement in industrial applications such as induction hardening of...
TC4 Symposium 2017
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Alina Taina
Due to the development of technical methods that are used in laboratories, but also due to the increased importance given to the laboratory tests, the quality assurance concept becomes more prominent. There are several ways in which quality assurance can be handled: reproducibility tests, use of reference materials, calibrations, multiple determinations using a different technical method. In the recent years, the proficiency testing has been used more and more as a method for proving results’ quality assurance. That is because mainly because the communication infrastructure, data processing...
TC4 Symposium 2017
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Iuliana-Delicia Dîrlau, Oana Beniugă, Burlică Radu
This paper deals with analysis of cold plasma surface discharges used as depollution techniques in order to induce oxidation/ reduction reactions in polluted water, without catalysts involvement. The paper is a statistical assessment of dependency between the electromagnetic stress induced by electrical surface discharges on water films and the distance from the discharge point. The electromagnetic field waves are generated by cold plasma electrochemical reactors surface discharge type.
TC4 Symposium 2017
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