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… MEMS resonator samples which Philips provides are measured and an equivalent electrical model is designed for them. This model is used in the simulations of the Pierce oscillator and the transresistance amplifier oscillator that are evaluated in this thesis. Finally the Pierce …
… has been a desire within the company to represent information from sensors and electrical systems in a more advanced way. Due to the mentioned reason above we were given the assignment to solve how a colour display using the STN technique works. The technique is used by small …
… Performance Assessment Model, which is the Swedish frame work for regulating electricity distribution. Analysis of the outage statistics show a relation between the type category of customer and outages that can be deduced to the variance and the density associated with that …
… the first chapters in the report cover hydropower, system planning, the electrical market and optimization. An essential part of the work consists of modeling of hydropower systems and two different models are accomplished. Both models include delay time and maximum discharge …
Föreliggande rapport är avsedd som ett examensarbete i elektroteknik (20p). Syftet med arbetet är att skapa en applikation för att finna störningar på lågspänningsnätet upp till 95kHz. Bakgrunden till arbetet kommer från energibolagen som vill kunna skicka datainformation direkt …
… dock i ett antal konstateranden. Bland de testade givarna är Eatons electric chip detector det mest intressanta alternativet för fortsatt utvärdering. Detta för att den inte behöver inspekteras manuellt och kan även göra det möjligt att bevaka trender med hjälp av ett …
med inriktning mot El-programmet, elektronik/datorteknik
Syftet med denna studie var att undersöka uppfattningarna hos karaktärsämneslärarna på gymnasiet med inriktning mot El-programmet, elektronik/datorteknik vad gäller de arbetsuppgifter som de utför inom karaktärsämnet, hur förberedda de menar sig vara för dessa uppgifter, samt i …
… strategy and how the local distributions net could be more secure. The electrical net could be secure but no system can be free from interruption. The dissertation examines two distribution transformers: GLA40T1 (Glansås) and T399 in Tranås Energy which don’t have regulators. It …
- en studie av produktionsmetoder
… companies active within this area of expertise. The technique of placing the electricity grid beneath ground for safety is today getting more and more common. The aftermath of the hurricane ”Gudrun” has forced several power companies to re-evaluate their electric supply network …
… the particulate mass concentration in the exhaust flow from the engine. An electrical problem in the TEOM circuit was detected and corrected, so the signal that carries the frequency from the TEOM can be analyzed properly. The frequency signal can be measured in a time interval …
? Produktutveckling av en oljedimavskiljare
… The disc stack is enclosed by a cylindrical shell and is powered by an electric motor. The small size and weight makes it possible to mount Skarven directly on the machine, which is preferable. The low manufacturing cost and the simple design makes it cheaper, lighter, smaller …
… it should be possible for consumers to get information about the origin of the electricity they buy. Therefore, there is a need to examine different systems for electricity disclosure. In this thesis two ways of disclosure have been studied: ? Certificate system. A certificate …
As I recently started to record in a studio, I almost immediately came to the conclusion that getting the right sound is not easy. I became curious about my recording procedure. What did I do wrong? How to place the microphone? Use of equipment? How is it possible to modify the …
The aim of this thesis is to investigate the correlation between the price of electric power and investments within the Swedish basic industry. Using regression analysis, the authors test for correlation between the electricity prices and the basic industry, defined as the pulp …
provtagning, analys och förslag till åtgärder
… mine. Water samples collected in the catchment were analysed for pH and electrical conductivity (EC), the total concentrations of Cu, Zn, Cd and Fe, and the concentrations of Cl-, TOC and SO42-. At several sampling points the water flow was measured with a V-notch. Minerogenic …
