19,820 research outputs found

    Heartbeat and Temperature Monitoring System for Remote Patients using Arduino

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    This paper describes the working of a wireless heartbeat and temperature monitoring system based on a microcontroller ATmega328 (arduino uno). Most monitoring systems that are in use in today\u27s world works in offline mode but our system is designed such that a patient can be monitored remotely in real time. The proposed approach consists of sensors which measures heartbeat and body temperature of a patient which is controlled by the microcontroller. Both the readings are displayed in LCD monitor. Wireless system is used to transmit the measured data from the remote location. The heartbeat sensor counts the heartbeat for specific interval of time and estimates Beats per Minute while the temperature sensor measures the temperature and both the data are sent to the microcontroller for transmission to receiving end. Finally, the data are displayed at the receiving end. This system could be made available at a reasonable cost with great effect

    Automated Soil and Air Temperature Monitoring Protocol

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    The purpose of this resource is to continuously measure soil and air temperature at one site. Students install four temperature probes; three are placed in the soil at three different depths and one is placed in an instrument shelter. Students use a data logger to record readings from the probes every 15 minutes. Students transfer the data to their school computers for analysis and submission to the GLOBE database. Educational levels: Primary elementary, Intermediate elementary, Middle school, High school

    Optical nanofiber temperature monitoring via double heterodyne detection

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    Tapered optical fibers (nanofibers) whose diameters are smaller than the optical wavelength are very fragile and can be easily destroyed if excessively heated by energy dissipated from the transmitted light. We present a technique for monitoring the nanofiber temperature using two-stage heterodyne detection. The phase of the heterodyne output signal is determined by that of the transmitted optical field, which, in turn, depends on the temperature through the refractive index. From the phase data, by numerically solving the heat exchange equations, the temperature distribution along the nanofiber is determined. The technique is applied to the controlled heating of the nanofiber by a laser in order to remove rubidium atoms adsorbed on its surface that substantially degrade its transmission. Almost 90% of the nanofiber's original transmission is recovered

    A microprocessor based, multi-channel low-temperature monitoring system

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    A multi-channel low-temperature monitoring system and its design considerations are presented. The system is microprocessor based and specially designed to interface thermoresistive sensors in cryogenic experiments. The system can be easily expanded to accept any type of physical transducer and to perform other output functions, ie control functions

    Temperature Monitoring in Switchgears

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    This thesis focuses on the problem of temperature monitoring inside electrical switchgears. The outcome of this work is a developed sensor prototype. This solution can monitor multiple bus bar and cable joints in switchgears using a single thermopile IR sensor. The measured temperatures are saved in a multipixel array, and they can be shown to the system operator using the application’s HMI. The main function of the application is to alarm the system when temperature hot-spots start to develop.    The specifications for the developed temperature monitoring application are laid out. Theory about IR temperature measurement is presented, and the function principle of thermopile sensors is described. Different solutions to the known reflectivity problem of bus bars are discussed. The presented solution to this problem is to apply high-emissivity paints or tapes close to potential hot-spots.    The developed application’s functions are shown in simple terms. A proof-of-concept test is made for the developed prototype application and different tapes and paints are also tested. The results of the test indicate promise for the developed prototype and the full application. Finally, a discussion is held about the test results and further product possibilities.    This thesis was made for Arcteq Ltd in Vaasa.Detta examensarbete behandlar problemet med temperaturövervakning i ställverk. Resultatet av detta examensarbete blev en utvecklad prototyp för en temperaturgivare. Den slutgiltiga lösningen kan övervaka flera kritiska anslutnings- och förgreningspunkter genom att använda endast en IR-givare. De mätta temperaturerna kan sedan visas för systemets operatör via systemets HMI. Systemets huvudsakliga funktion är att alarmera när temperaturen i en punkt överskrider en alarmnivå. Specifikationerna för den utvecklade temperaturövervakningsapplikationen framställs. Teorin som användes för temperaturmätningen med IR-givaren presenteras. Dessutom presenteras teorin som möjliggjorde mätningen med termoelement, vilket är centralt till den valda givartypen. Olika lösningar till det kända reflektivitetsproblemet diskuteras. Den valda lösningen var att applicera tejp eller målfärg nära samlingsskenornas potentiella hetpunkter. Den utvecklade lösningen beskrivs i enkla termer. Ett test utfördes för att bekräfta den utvecklade prototypen och olika tejper och målfärger testas också. Resultaten är lovande för den utvecklade givarprototypen och lösningen som helhet. Slutligen hålls en diskussion angående testresultaten och produktens framtidsutsikter. Arbetet gjordes åt Arcteq Ab i Vasa.Tämä lopputyö käsittelee lämpötilan valvontaa sähkökojeistossa. Tuloksena kehitettiin anturimoduuli, joka pystyy valvomaan useita kohtia kojeistossa käyttäen ainoastaan yhtä IR-anturia. Mitatut lämpötilat voidaan näyttää järjestelmän valvojalle järjestelmän HMI-ikkunassa. Järjestelmän päätehtävä on varoittaa kun tietyt lämpötilarajat ylittyy. Kehitetyn lämpötilamittausjärjestelmän vaatimukset esitetään. IR-anturin lämpötilamittauksen teoriaa käsitellään ja termoelementin käytäntö esitellään. Eri ratkaisuista sähkökiskojen reflektio-ongelmalle keskustellaan. Valittu ratkaisu on peittää mittauskohdat materiaalilla jossa on korkea emissioarvo. Kehitetyn applikaation testit suoritettiin ja erilaisia teippejä ja maaleja testattiin. Testien tulosten perusteella prototyyppi ja koko applikaatio näyttää lupaavilta. Lopuksi keskustellaan testituloksista ja tuotteen tulevaisuuden mahdollisuuksista. Tämä opinnäytetyö on tehty Arcteq Oy:lle Vaasassa

    Temperature monitoring via Ethernet

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    Hlavním tématem práce je měření a přenos teploty po síti Ethernet. Práce obsahuje teoretický úvod, ve kterém jsou popsány různé typy senzorů, měření teploty, Ethernet a návrh systému a výběr součástek. Praktická část je zaměřená na realizaci systému, popis programu a odesílání změřených hodnot po síti Ethernet.The main topic of the presented thesis is temperature monitoring via Ethernet. This thesis contains theoretical part, in which are described different types of sensors, temperature measurement, Ethernet, and system design and the selection of components. The practical part is focused on the implementation of the system, a description of the program and sending the measured values via Ethernet.

    On the Economics of Industrial Safety

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    Diabetic foot complications are associated with substantial costs and loss of quality of life. This article gives an overview of available and emerging devices for the monitoring of foot temperature as a means of early detection of foot disorders in diabetes. The aim is to describe the technologies and to summarize experiences from experimental use. Studies show that regular monitoring of foot temperature may limit the incidence of disabling conditions such as foot ulcers and lower-limb amputations. Infrared thermometry and liquid crystal thermography were identified as the leading technologies in use today. Both technologies are feasible for temperature monitoring of the feet and could be used as a complement to current practices for foot examinations in diabetes.Original Publication: Kerstin Roback, An overview of temperature monitoring devices for early detection of diabetic foot disorders, 2010, EXPERT REVIEW OF MEDICAL DEVICES, (7), 5, 711-718. http://dx.doi.org/10.1586/ERD.10.35 Copyright: Expert Reviews http://www.expert-reviews.com/</p
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