Search for dissertations about: "Phase measurement"

Showing result 1 - 5 of 461 swedish dissertations containing the words Phase measurement.

  1. 1. Embedded Measurement Systems

    Author : Lars Bengtsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; Microcontroller; measurement system; direct sensor-to-controller; time-to-digital converter; phase detector; lock-in amplifier;

    Abstract : The subject of Embedded Measurement Systems (EMS) is the merging of embedded systems and electrical measurement systems. This indicates that EMSs are hardware-software systems dedicated to measuring one or a few physical quantities. READ MORE

  2. 2. Phase-out of refrigerant R22

    Author : Anders Johansson; KTH; []
    Keywords : Retrofit; Phase-out; CFC; HCFC; HFC; R22; R407C; R417A; R404A; R134a; Ozone depletion; Zeotropic refrigerant mixture; Circulated composition; Measurement; Energy; Energy efficiency; System; Systems analysis; Modelling; Simulation; Prediction;

    Abstract : .... READ MORE

  3. 3. A calibration system for instrument transformers with digital output

    Author : Jon Ivar Juvik; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; instrument transformers; measurement uncertainty; current transformers; phase displacement; phase measurement; calibration; potential transformers; phase error; digital signal processing;

    Abstract : .... READ MORE

  4. 4. High-Capacity Cool Thermal Energy Storage for Peak Shaving - a Solution for Energy Challenges in the 21st century

    Author : Bo He; KTH; []
    Keywords : Comfort cooling; peak shaving; phase change materials PCM ; cool thermal energy storage; DSC; phase change temperature; the heat of fusion; phase equilibrium; phase diagram.;

    Abstract : Due to climatic change, increasing thermal loads inbuildings and rising living standards, comfort cooling inbuildings is becoming increasingly important and the demand forcomfort cooling is expanding very quickly around the world. Theincreased cooling demand results in a peak in electrical powerdemand during the hottest summer hours. READ MORE

  5. 5. Evaluation and revision of performance measurement systems

    Author : Stefan Tangen; Mats Björkman; KTH; []
    Keywords : Technology; performance measurement; performance measurement systems; productivity; evaluation; TEKNIKVETENSKAP; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Performance measurement is a topic that has received considerable attention during the last decades. There are many motives for using performance measures in a company but perhaps the most crucial one is that they will help to improve productivity when used properly. READ MORE