Daniel Belega, Robert Pazsitka, Dan Stoiciu
This paper investigates the influence of the accuracy of the op-amp used by the square root circuit on the accuracy of the root mean square (rms) measurement achieved by means of an analog multiplier-based rms-to-dc converter implemented using the direct method. The rms measurement accuracy achieved using the internal op-amp of the multiplier is compared through experimental results with that achieved using more accurate op-amps, namely TL082 and OPA277. The analyzed rms-to-dc converter is implemented using the Texas Instruments Analog System Lab Kit (ASLK) PRO board equipped with MPY64...
TC4 Symposium 2017
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· 2017
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Lucian Nita, Ferran Torrent-Fontbona
The paper presents a system which collects medical data from people with type 1 diabetes mellitus, stores the data into a cloud database and implements web pages for data analysis. This system architecture gives possibility to clinicians and patients to share information about patient evolution without the need for the patient to physically visit the hospital. The system includes a clinical decision support system which helps the patient on insulin doses calibration.
TC4 Symposium 2017
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Jia Zhengsen, Liu Zhiyao, Wang Lei, Huang Hongtao, Liu Lijuan
Firstly, a differential sampling measurement principle is introduced, then based on this principle, we have developed a precision differential sampling system to measure sine-wave sources with the use of a quantumaccurate ac programmable Josephson voltage standard. And switching measurement technology is adopted in the differential sampling system design. By analyzing the error source of the differential sampling system, a mathematical model is established and the error transfer function is derived.We have performed a variety of measurements to evaluate this differential sampling system....
TC4 Symposium 2017
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D. De Zanet, M. Battiston, E. Lombardi, A. Da Ponte, R. Specogna, F. Trevisan, A. Affanni, M. Mazzucato
In clinical laboratories the requirements for quality control material have greatly increased in order to evaluate and monitor the reliability of performances. Pre-analytical conditions of blood samples are key factors in maintaining the high quality of the specimens and they are necessary for the reproducibility and the accuracy of measurements and procedures in clinic. Using quality control samples, day-today and batch variations can be limited. The quality of the serum has to be very high in order to avoid interferences due to hemolysis; for this reason, every sample should be rapidly...
TC4 Symposium 2017
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Tiffany Haas, Michael S. J. Walter, Stefan Weiherer, Alexandru Salceanu
The on-going electrification of the mobility sector requires intensive research studies on several topics, such as energy storage systems and electric charging infrastructure as well as sustainable air conditioning. In winter performance losses reduce capacity and range of battery electric vehicles (BEVs) extremely. Furthermore, heating the passenger compartment exacerbates this. Hence,a lot of research is going on, regarding the support of the heating system in BEVs. The subject of this review is the state of the art of air conditioning systems. Alternative energy supplying concepts, which...
TC4 Symposium 2017
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Paolo Castello, Carlo Muscas, Paolo Attilio Pegoraro, Sara Sulis
The classical Wide-Area Monitoring System (WAMS) ischaracterized by a hierarchical architecture composed of Phasor Measurement Units (PMUs) and different levels of Phasor Data Concentrators (PDCs). The WAMS based on synchrophasor technology was originally designed for transmission systems; nevertheless, with the development of the smart grid paradigm, the benefits of this technology are being extended to the distribution network. Normally, PMUs send measurement data ata high and constant reporting rate to guarantee the monitoring of dynamic events in the electric transmission...
TC4 Symposium 2017
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Charalampos Marantos, Kostas Siozios, Stylianos Siskos, Norocel Codreanu
A Cyber-Physical System (CPS) is considered as one of the hottest computer applications today, while a proper design of such a system preassumes that a number of challenges have to be sufficiently addressed. A CPS is composed by a tight integration of cyber and physical objects, where the term cyber objects refers to any computing hardware/software resources that can achieve computation, communication, and control functions in a discrete, logical, and switched environment. Similarly, the physical entities refer to any natural or human-made systems that are governed by the laws of physics and...
TC4 Symposium 2017
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Cosmin Pintilie, Adrian Plesca, Andrei Hojbota
The paper want to present how to realize a temperature measurements system for industrial applications who could be transferred to a domestic application regard of how to automatically heating the water, from a input value (around 5 Celsius degree) until an high output value (around 60-65 Celsius degree). Heated water could be used in different industrial technological processes (heating, supply, cleaning, washing etc.), also at domestic houses or office buildings to prepare hot water. In this paper it’s described a temperature monitoring system for water which circulates through an...
TC4 Symposium 2017
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S. Ursache, E. Lunca, A. Salceanu, I. Pavel
The exponential development of technology involves the usage of a larger and larger number of modern equipment, including household appliances. This fact is directly linked with the increase of the background level of low frequency magnetic fields. The main objective of this paper is to study the relationship between the low frequency magnetic field generated by the household appliances and the current consumption. The measurement system consists of the hand-held triple axis 480826 EMF Tester from Extech Instruments and 80i-400 clamp meter from Fluke. We have taken into account a number of...
TC4 Symposium 2017
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Ionel Pavel, Valeriu David, Silviu Ursache
In this paper we present the human exposure of low frequency magnetic field in a commercial area. To realize the study, we used two measurement instruments to obtain both spot measurements and the long term survey of the magnetic field. Referring to the spatial variability, we realised a map and graphical representations of the magnetic field at different heights, inside the commercial area. The magnetic field variability with height from the floor it was determined in two cases: when the equipments were connected or disconnected from the power supply network. The highest value of the...
TC4 Symposium 2017
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