This master thesis is a study on how a rategyro triad, an Accelerometer triad, and a magnetometer triad can be integrated into a navigation system, estimating a vehicle?s attitude, i.e. its roll, tipp, and heading angles. When only a rategyro triad is used to estimate a vehicle?s attitude, a drift in the attitude occurs due to sensor errors.

Syftet med studien var att undersöka sambanden mellan Dark Triad (de mörkapersonlighetsdragen Machiavellism, narcissism och psykopati), Sociosexuell orientering(beteende, attityd och lust till att medverka i tillfälliga sexuella relationer) samt Religiositet.En korrelationsanalys utfördes för att undersöka sambanden mellan variablerna och enmodererande multipel regressionsanalys (MMR) utfördes för att undersöka om religiositetmodererade effekten av Dark Triad på sociosexuell orientering. Deltagarna bestod avamerikaner (N =309) som svarade på en webbenkät via Amazon Mechanical Turk (MTurk)vilken innehöll Dark Triad Dirty Dozen (DTDD) och the Revised Sociosexual OrientationInventory (SOI-R), dessutom angav de religionstillhörighet/ingen religionstillhörighet.Dark Triad hade ett positivt samband med sociosexuell orientering, men inget sambandmed religiositet. Sociosexuell orientering hade ett negativt samband med religiositet.Religiositet modererade inte effekten av Dark Triad på sociosexuell orientering. Resultatenbekräftar delvis tidigare forskning. Trots att religiositet inte modererade effekten av DarkTriad på sociosexuell orientering, borde detta förhållande undersökas vidare eftersom ingentidigare forskning gjorts på området..

Objective:This study aimed to investigate the correlation between physical activity level (PAL), measured with activity diary and accelerometer, among overweight and obese children and adolescents. The aim was also to study differences in PAL between girls and boys.Design:55 children and adolescents, whom been subjected to a physical activity registration with a physical activity diary and accelerometer during three or four days, were included in this study. From the data received from the children?s journal records PAL was calculated and compiled for statistic analysis.Results:The results of the study showed that the children underestimated their physical activity level when measured with activity diary, in comparison with the physical activity level measured with accelerometer. Differences between girl and boys PAL values were not statistically significant, although the girls PAL values from the accelerometer, but not from the activity diary, reached a moderate activity level according to Nordic nutrition recommendation.

This master thesis has been carried out as a prototype development project. The project hasbeen performed in cooperation with ÅF Combra AB. The purpose with the master thesis is toconstruct a Bluetooth interface between an accelerometer and a smartphone and constructinga physical prototype containing an accelerometer. This is done to test a new user interface tomobile phones. The master thesis has also included a research about the possibility toimplement distance measuring with Bluetooth.

Dagens robotindustri har som mål att bygga billigare och lättare robotar, vilket ger allt vekare robotar. Denna rapport studerar identifiering och reglering med en extra armsensor ? accelerometer ? på en flexibel industrirobot. Studien har skett både simulerat och experimentellt på en industrirobot.Vid identifiering med accelerometer befinner sig accelerometern i ett roterande koordinatsystem. Denna rapport presenterar en kompenseringsalgoritm för att transformera signalerna från det roterande koordinatsystemet till ett rumsfast koordinatsystem.I denna rapport presenteras regulatorstrukturerna I-PID, II^2-PID och LQG, vilka alla återkopplar motorvinkel och armvinkelacceleration.

Det finns i dagsläget gott om spelplattformar med stöd för accelerometer.När spel skall utvecklas mot dessa spelplattformar så är det viktig att ställa frågorna. är det lämpligt att använda accelerometern? Vilka problem innebär det? Är andra alternativ mer lämpliga?I detta arbete behandlas spelet Flygplan. Är accelerometer en lämplig kontrolltyp till flygplan eller är ett tangentbord mer lämpligt. För att få svar på frågorna utvecklades en prototyp av Flygplan med de två kontrolltyperna.

Denna rapport sammanfattar resultat av ett examensarbete på en högskoleingenjörsutbildning som utfördes av två studenter på Malmö högskola. Arbetets syfte var att genomföra en mängd olika experiment med accelerometer, barometer och GPS i en modern smarttelefon. Ett antal scenarier för en tänkbar sensoranvändning i applikationer formulerades för att vägleda olika experiment. Experimentdata dokumenterades noggrant och analyserades med avsikten att skapa en databank med information för framtida studier. Analys av data inkluderar höjdbestämning i naturen och i byggnader med hjälp av barometersensor, geografisk position med hjälp av GPS, hastighet och acceleration under en hissfärd med hjälp av accelerometer. Rapporten innehåller en omfattande litteraturstudie om användning av sensorer vid inomhuspositionering. Från analys av mätdata, kom vi fram till slutsatsen att är möjligt att beräkna höjden från barometerdata med bra noggrannhet under optimala omständigheter. GPS höjden från mätningarna har stor felmarginal jämfört med den verkliga höjden samt när den jämförs med den beräknade höjden från barometern. Genom att utföra en numerisk integration på accelerometer-data kom vi fram till att det är möjligt att beräkna ungefär hur långt man har färdats med en hiss, dock att vissa detaljer måste tas i beaktning..

There is currently no activity or behavior meters validated for sows under Swedish conditions where the sows are loose-housed during farrowing and nursing. An activity meter could in particular be used to detect sows that are getting ready for farrowing. Assistive technology in order to register different behaviors would be extremely useful in research and breeding. In this study, a HOBO Pendant G data logger was validated for two different functions. First, the function as a pure activity meter in which the accelerometer's ability to detect an upcoming farrowing was evaluated, and second, the accelerometer's ability to distinguish between the behaviors standing up, sitting down, lying ventrally and lying laterally on the right and left sides was evaluated. The accelerometer was attached to a collar around the sow's neck, and was recording its location every two seconds for six hours a day for ten days on a total of twelve sows.

Denna rapport behandlar utveckling av en tvåhjulig balanserande robot. En PID-regulator är implementerad i en mikrokontroller, som även AD-omvandlar en sensorsignal, samt styr motorer via H-bryggor med pulsbreddsmodulering. I rapporten förklaras framtagning av diskret PID-regulator, processorkort, motorkort, val av komponenter och sensor för att mäta robotens vinkel mot ett vertikalplan.Roboten kan balansera stillastående, men behöver kompletteras ytterligare med hjulåterkoppling för att kunna balansera medan den kör. Roboten balanserar med mätdata från en mekanisk golvavkännare (potentiometer). Andra sorters sensorer diskuteras också, t ex accelerometer, gyro och optisk sensor..

This paper has its aim to investigate in which way the theory about the dynamic of the triadic nexus, presented by Brubaker, needs to be revised. In the first place this theory is presented and after then applied on the triad formed by: the Hungarian national minority in Transylvania, Romania and Hungary. Through the empirical evidences, that are presented here by following up the political relations and its dynamics over time between the three fields, is shown that the theory is usable for the case in question. Further as we approach the more actual development of the political life in the triad appears a need to deal with one more field which would be for example the NATO or/and EU.This means that Brubakers theory has to be revised so it would take in account a forth field and that of an international organization/institution. The arguments for this needed change is put forth through empirical evidences on the political relations that the two states has with NATO or/and EU and the huge influence these have on the states..

The present study tested the prediction that male offenders are judged more harsly than female offenders for involving in a violent crime. Three-hundred and fifty-four adult students (163 men, 190 women, 1 unspecified gender) evaluated a hypothetical crimescenario describing a violent conflict between two parties, as part of a 2 (Informants Gender: Male/Female) x 3 (Offender Gender Triad: Male/Female/Neutral) x 3 (Victim Gender Triad: Male/Female/Neutral) between-subjects design. In situations involving male offenders, compared to female offenders, the informants judged the male offenders more harshly which exposed a double standard, as we expected. Informants also believed that it was more likely that a male offender was a recidivist..

This report describes the manufacture and control of a flying platform. The report describes the basic and fundamental theories required to get the platform flying. It touches on subjects such as A/D-conversion. PWM-control and PID-control. The sensors used in the platform are a gyro and an accelerometer.

AbstractThe research project Liberation, supported by the European Commission under the Environment and Sustainable Development Programme (Fifth RTD Framework Programme) aimed at developing a decision support system for ecological risk assessment of contaminated sites has proposed a tiered system including the triad method. This method integrates contaminant chemistry and bioavailability analyses with observed ecotoxicological effects in soil and groundwater. In this study the triad method was used to perform a risk characterization of a former surface treatment and metal industry, now used for the student union buildings of the Mälardalen University in Eskilstuna, Sweden. On the site, high concentrations of copper, zinc and nickel have been detected in the soil in a preliminary investigation of contaminant levels with XRF. For performing the risk assessment of the site according to the triad method, contaminant bioavailability, soil metal concentrations and soil toxicity were determined and an ecological assessment was carried out on four selected soil samples (one reference soil and three samples with low (B), medium (C) and high (D) contaminant levels). Contaminant bioavailability was measured through leaching (ISO TC 190/S7) and biouptake tests (DGT).

This thesis approaches the problem of estimating the arm angles of an industrial robot with flexibilities in joints and links. Due to cost-cutting efforts in the industrial robots industry, weaker components and more cost-effective structures have been introduced which in turn has led to problems with flexibilities, nonlinearities and friction. In order to handle these challenging dynamic problems and achieve high accuracy this study introduces state observers to estimate the tool position.The observers use measurements of the motor angles and an accelerometer and the different evaluated observers are based on an Extended Kalman Filter and a deterministic variant. They have been evaluated in experiments on an industrial robot with two degrees of freedom. The experimental verification shows that the state estimates can be highly accurate for medium frequency motions, ranging from 3-30Hz.

In order to detect movements and vibrations on different appliance, especially robots and self-going devices are used different sensors. One of the most used movement sensors are accelerometers. They are three different types of accelerometers one-axes, two-axes and three-axes. They can be analogue or digital. Husqvarna AB uses an accelerometer to detect movements of their self-going lawnmower Automower.