Search for dissertations about: "uncertainty in measurement and instrumentation"

Showing result 1 - 5 of 10 swedish dissertations containing the words uncertainty in measurement and instrumentation.

2. 1. Modelling and Validation of Industrial Measurement Systems - Aspects of Quality and Human Factors

   Author : Jenny Wirandi; Avdelningen för Biomedicinsk teknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Uncertainty Analysis; Quality Index; Instrumentation technology; Mät- och instrumenteringsteknik; Traceability; Fuzzy Variable; Pulp Quality; Industrial Measurement; Human Factor; GUM; Calibration; Fibre Measurement; Measurement Science;

   Abstract : Although there is a fairly large number of books and articles concerning the validation of technical measurement systems, there are only a few which take into account the whole measurement system consisting of both technical and non-technical aspects. A measurement system comprises both the measurement process and the human being who conducts the measurement. READ MORE

4. 2. Evaluation and modeling of the flow in a slotted wall wind tunnel

   Author : Emil Ljungskog; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD Simulations; Ground Simulation; Uncertainty Quantification; Wind Tunnel; Tangential Blowing; Flow Uniformity; Slotted Walls;

   Abstract : As vehicle manufacturers strive to shorten the development time of new models, an increasing share of the aerodynamic development work is shifted from wind tunnel testing of prototype vehicles to numerical simulations of virtual models. However, comparing measurements from the wind tunnel with numerical simulation data is not straightforward due to several interference effects occurring between the wind tunnel and the tested vehicle. READ MORE

5. 3. Experimental verification of tomographic measurement methods in ultrasound

   Author : Monica Almqvist; Avdelningen för Biomedicinsk teknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; airborne.; high resolution; characterization; tomography; light diffraction; doppler; ultrasound; vector tomography; Instrumentation technology; Mät- och instrumenteringsteknik;

   Abstract : This thesis describes two different measurement methods applied to ultrasound. The first method, Ultrasound doppler vector tomography, uses ultrasound to measure blood flow and the second method, Light diffraction tomography, measures the pressure field in an ultrasound beam with laser light. READ MORE

6. 4. Water Condensation and Freezing in the Atmosphere: Exploring Deliquescence and Ice Nucleation

   Author : Dimitri Castarède; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hygroscopicity; Deliquescence; Atmosphere; Particles; Ice Nucleation; Ice Nucleation Chamber;

   Abstract : Atmospheric aerosols play key roles in numerous atmospheric processes. They affect human health, are substrates and components for atmospheric chemistry, and via their contribution to clouds affect the water cycle and the energy balance of the planet. READ MORE

7. 5. SMILETRAP I / II : Precision Improvements in Penning-Trap Mass-Spectrometry

   Author : Markus Suhonen Linné; Reinhold Schuch; Lutz Schweikhard; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Penning trap; Mass spectrometers; Instrumentation and methods for time-of-flight TOF spectroscopy; Highly charged ions; Atomic physics; Atomfysik; fysik; Physics;

   Abstract : This thesis describes the final precision mass measurements with SMILETRAP I, where a relative precision of < 1 ppb (10-9) was reached routinely, and the development of SMILETRAP II, aiming for measurements with < 0.1 ppb relative precision. READ MORE