Refine
Year of publication
- 2013 (236) (remove)
Document Type
- Article (unreviewed) (68)
- Conference Proceeding (59)
- Article (reviewed) (34)
- Bachelor Thesis (23)
- Book (18)
- Part of a Book (11)
- Contribution to a Periodical (5)
- Other (5)
- Patent (4)
- Master's Thesis (3)
Conference Type
- Konferenzartikel (42)
- Konferenz-Abstract (10)
- Sonstiges (3)
- Konferenz-Poster (2)
- Konferenzband (2)
Language
- German (142)
- English (93)
- Other language (1)
Keywords
- Kommunikation (7)
- Bildung (5)
- Energieversorgung (5)
- Management (5)
- Dünnschichtchromatographie (4)
- Kardiale Resynchronisationstherapie (4)
- Schule (4)
- Biogas (3)
- Elektrokardiogramm (3)
- Fallstudie (3)
Institute
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (90)
- Fakultät Medien und Informationswesen (M+I) (bis 21.04.2021) (74)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (56)
- INES - Institut für nachhaltige Energiesysteme (26)
- Fakultät Wirtschaft (W) (15)
- IUAS - Institute for Unmanned Aerial Systems (8)
- POIM - Peter Osypka Institute of Medical Engineering (5)
- Rektorat/Verwaltung (2)
- CRT - Campus Research & Transfer (1)
- Zentrale Einrichtungen (1)
Open Access
- Closed Access (84)
- Open Access (64)
- Bronze (11)
- Closed (3)
- Gold (1)
The invention relates to a method for determining properties of a pipeline, more particularly the position of a branch in a waste water pipeline, in which: a sound wave transmission signal (S, S') is fed into the pipeline (1) at a predetermined infeed point and propagates in the axial direction of the pipeline (1), wherein the frequency spectrum of the sound wave transmission signal (S, S') has a frequency component or a spectral range, the maximum frequency of which is lower than the lower limit frequency (fc) for the first upper mode; in which method components (Sr1, Sr2, Sr3, S'r1, S'r2, S'r3) of the sound wave transmission signal (S, S') reflected inside the pipeline (1) are detected as a sound wave reception signal (E, E'); and in which method, by evaluating the sound wave reception signal (E, E') in relation to the sound wave transmission signal (S, S'), the pipeline (1) is examined for the presence of reflection sites along the pipeline (1) that cause sound wave reflections (Sr1, Sr2, Sr3, S'r1, S'r2, S'r3), wherein at least the distance (I) of a reflection site from the infeed point is determined by evaluating the respective sound wave reception signal (E, E'). The invention further relates to a device for implementing said method.