Téléchargement | - Voir la version finale : A tone-burst ranging system for parallel-line sounding (PDF, 1.4 Mio)
|
---|
DOI | Trouver le DOI : https://doi.org/10.4224/21277217 |
---|
Auteur | Rechercher : Wyslouzi, W.1 |
---|
Affiliation | - Conseil national de recherches du Canada
|
---|
Format | Texte, Rapport technique |
---|
Description physique | 19 p. |
---|
Résumé | To improve the efficiency of hydrographic surveying operations on inland and coastal waters it is desirable to employ a parent vessel in the centre, with up to six side vessels running courses parallel to the parent vessel art distances depending on the survey scale. A simple equipment is described which allows the side vessels to maintain their stations with respect to the parent vessel by measuring the difference in the time of arrival between a radio signal and a sound pulse transmitted simultaneously from the parent vessel at regular intervals. The indicating unit also provides a permanent record so that if a side vessel should err from its course, appropriate corrections can be made when the depth soundings are plotted. |
---|
Date de publication | 1968-01 |
---|
Maison d’édition | National Research Council of Canada. Radio and Electrical Engineering Division |
---|
Série | |
---|
Langue | anglais |
---|
Identificateur | 22167 |
---|
Numéro NPARC | 21277217 |
---|
Exporter la notice | Exporter en format RIS |
---|
Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
---|
Identificateur de l’enregistrement | fd6000c7-92c1-4382-9215-5bb8914525c1 |
---|
Enregistrement créé | 2016-01-14 |
---|
Enregistrement modifié | 2023-01-25 |
---|