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Patent•
26 Dec 2000TL;DR: In this paper, a method and system for on-line measurements of mineral additives in or on a paper web utilizing shaped spectrum x-rays and solid-state PIN detectors is presented.
Abstract: A method and system for on-line measurements of mineral additives in or on a paper web (16) utilizing shaped spectrum x-rays and solid-state PIN detectors. Each of three detectors (20, 22, 24) are covered by a filter (26, 28, 30) used to shape the spectrums of x-rays received by the detectors. The filters are selected to maximize sensibility differences between detectors for the desired detectable mineral additives. A computer (31, 40) processes signals from the detectors and from basis weight and moisture measuring instruments (42) to determine total mineral content, and the individual amounts of mineral additives in or on (e.g. coating) the paper web.
22 citations
Patent•
09 Aug 1990TL;DR: In this article, a method and a device for protecting persons at risk from electric shock currents coming from an electrical device and/or an electrical system as part of a load network is described.
Abstract: The invention relates to a method and a device for protecting persons at risk from electric shock currents coming from an electrical device and/or an electrical system as part of a load network. In this case, use is made of a current-detection device which is carried by the person at risk, for detecting a shock current and for outputting a signal to an associated switch-off device which is connected to the network and causes interruption of the network.
22 citations
18 Feb 2003
TL;DR: The approach to re-introducing analyzability into a complex real-time control system at ABB Robotics is described, based on analytical models and discrete-event based simulation of the system behavior based on these models.
Abstract: Many industrial real-time systems have evolved over a long period of time and were initially so simple that it was possible to predict consequences of adding new functionality by common sense. However, as the system evolves the possibility to predict the consequences of changes become more and more difficult unless models and analysis method can be used.
22 citations
TL;DR: In this paper, the transferred charge after contact and separation was measured, which resulted in individual contact electrification curves and the reversal of the net charge polarity with increasing number of contacts.
Abstract: Samples of different materials were repeatedly contacted with metal plates in high vacuum. The transferred charge after contact and separation was measured. This resulted in individual contact electrification curves. Different behaviour of the materials was observed. High-conductivity samples such as oxidized metals or graphite show charge saturation after few contacts. Low-conductivity samples like quartz, calcite and Teflon show charge accumulation up to a large number of contacts. Reversal of the net charge polarity with increasing number of contacts was observed for calcite and quartz samples.
22 citations
Patent•
08 Feb 1992
TL;DR: The current and voltage transformer as mentioned in this paper is intended for a metal-encapsulated, gas-insulated high-voltage installation and has an annular supporting body which can be fixed inside the metal encapsulation and is used for holding a current sensor and a voltage sensor.
Abstract: The current and voltage transformer (10, 11) is intended for a metal-encapsulated, gas-insulated high-voltage installation. It has an annular supporting body (13) which can be fixed inside the metal encapsulation (7) and is used for holding a current sensor and a voltage sensor. The current sensor, held on the supporting body (13), is constructed as a toroidally wound coil (14) and the voltage sensor, held on the supporting body (13), is constructed as a hollow-cylindrical measurement electrode (15). After fitment in the installation, the coil (14) and measurement electrode (15) concentrically surround a current conductor (5) of the installation. This current and voltage transformer is intended to have small dimensions and is intended to be capable of fitment without problems at any point in the installation. This is achieved in that the coil (14) is wound in the manner of a Rogowski coil on an annular core (29) of non-ferromagnetic material, of essentially rectangular cross-section when cut in the axial direction, having a small radial dimension in comparison with the radius of the core ( 29) and with its axial extent, and is arranged in a hollow-cylindrical space (19) in the supporting body (13), which space is shielded against electric fields and whose boundary wall providing the electrical shielding is connected, after fitment, to the potential of the metal encapsulation (7).
22 citations
Authors
Showing all 6228 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Johann W. Kolar | 97 | 965 | 36902 |
| Stefan Karlsson | 70 | 292 | 19180 |
| Rüdiger Kötz | 63 | 195 | 17364 |
| Erik Janzén | 58 | 682 | 14357 |
| Peter J. Uggowitzer | 57 | 338 | 11393 |
| Rolando Burgos | 55 | 471 | 13606 |
| Fangxing Li | 55 | 402 | 11226 |
| Ming Li | 48 | 591 | 8784 |
| Gianni Blatter | 46 | 277 | 12191 |
| A. I. Larkin | 46 | 221 | 17156 |
| Vladimir Terzija | 45 | 357 | 8170 |
| Mats Leijon | 41 | 295 | 7355 |
| Wolfgang Polifke | 40 | 336 | 5746 |
| Thomas Sattelmayer | 40 | 486 | 6387 |
| Thierry Meynard | 40 | 246 | 9625 |