Uwe Hampel

TL;DR: In this paper, a wire-mesh sensor based on capacitance measurements is proposed to measure transient phase fraction distributions in a flow cross-section, such as in a pipe or other vessel, and is able to discriminate fluids having different relative permittivity values in a multiphase flow.

TL;DR: In this article, a toolbox consisting of digital cameras, computer interfaces, illumination systems, calibration devices, combined with subpixel accuracy image measurement operators, multi-image matching techniques, and self-calibrating bundle adjustment in a suitable user interface, depicts a very powerful tool for tailoring custom-made solutions for material testing labs.

TL;DR: In this paper, the design of an ultra fast x-ray tomography scanner based on electron beam technology is presented. But the design is optimized with respect to ultra fast imaging of smaller flow vessels, such as pipes or laboratory-scale chemical reactors, which is sufficient to capture flows of a few meters per second velocity.

TL;DR: In this article, a wire-mesh sensor based on electrical capacitance measurements for the investigation of gas-oil two-phase flow in a vertical pipe of 67 mm diameter under industrial operating conditions is reported.

TL;DR: In this paper, a prototype for scientific flow measurement studies is presented, which consists of an electron beam unit that can be operated at up to 150kV acceleration voltage and up to 65mA electron beam current, with the required electron optics for beam adjustment, beam focusing and beam deflection unit and a fast circular CZT detector comprising 240 elements of 1.5mm-×-1.5 mm active pixel area.