Essays about: "Dielectric constant"
Showing result 1 - 5 of 31 essays containing the words Dielectric constant.
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1. LoRa Based Moisture Sensing System
University essay from Uppsala universitet/Signaler och systemAbstract : Water is an important parameter for crop growth, and the information about the moisture content in soil at different depths is very useful for farmers to determine the best time to water the soil and to irrigate farmland so as to maximize their yield. This thesis project aims to develop a prototype of a multi-depth moisture sensor probe that is part of a large sensing system used in agriculture. READ MORE
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2. Investigation of MIDEL 7131’s Dielectric Breakdown Strength and Thermal Behaviour : Master Thesis, an experimental study using concentric-like electrodes at elevated temperatures to study breakdowns
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Dielectric insulation are constantly exposed to various stresses, while also being expected to last for long periods of time. Naturally, they degrade with use and in demanding operational environments, this degradation phenomena can be accelerated, leading to costly consequences. READ MORE
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3. Dielectric properties of ion-exchanged electrotechnical insulation papers : A study on the properties of novel papers
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Electrical insulation papers are a widely used group of papers in insulation applications and has been used for more than 100 years. Common applications include use as the dielectric medium in capacitors and insulation material in cables, bushings and transformers. READ MORE
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4. Study of different methodologies to determine relative dielectric constant of given substrate using fabrication, modelling and measurement strategies
University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknikAbstract : In this thesis, different methods for measuring the relative dielectric constant is investigated using simulations and experimental approaches. The first method is known as the S-parameter inversion method. In this method formulae is used to calculate the characteristic impedance of the microstrip line from measured S-parameters. READ MORE
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5. Measurements of resistivity in transformer insulation liquids
University essay from Uppsala universitet/Institutionen för elektroteknikAbstract : This thesis focuses on measuring techniques and results of resistivity in four commercially available insulating transformer oils: mineral oil, ester oil and two isoparaffin oils. Two measuring techniques, the industrially used diagnostic system for electrical insulation IDA and the Labview implemented Triangular Method, are used for resistivity measurements and the techniques are compared, a correction algorithm to the triangular method is suggested. READ MORE