| Zugriffsnummer | 29368 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Speed-of-sound measurements in seawater using the time-of-flight method |
| Autor(in); Institution |
Rohden, Christoph von; 7.4, Temperatur, PTB-Berlin
Fehres, Felix; 7.4, Temperatur, PTB-Berlin
Rudtsch, Steffen; 7.4, Temperatur, PTB-Berlin
|
| Quelle/Jahr | Water, steam, and aqueous solutions ; Working for the Environment and Industry ; proceedings of the 16th International Conference on the Properties of Water and Steam:(2013) |
| Konferenzangaben | 16th International Conference on the Properties of Water and Steam, University of Greenwich, London, 1-5, September, 2013, UK |
| Zusammenfassung | We started an investigation of commercial time-of-flight sensors designed for oceanographic in-situ speed-of-sound measurements. The manufacturers claimed small uncertainties, making them interesting, e.g. for the verification of existing sound speed data in seawater and as an alternative to CTD-based calculations. We calibrated the sensors with a repeatability of ≤ 0.021 m·s−1 in pure water at 1 °C to 50 °C, and measured the speed of sound (w) in solutions of NaCl, MgCl2, Na2SO4, seawater and diluted seawater at atmospheric pressure. The reproducibility is better than 0.1 m·s−1, while systematic deviations in the records of different sensors up to 0.65 m·s−1 have been noted. |
