In this work, we propose a general study of hydrophones focusing on their operation, based on the piezoelectric principle, the different elements that compose them and the available hydrophones and patents. We model reception and emission sensibility curves with COMSOL software and compare with hydrophones at our disposal, allowing us to...
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May 18, 2015 (v1)PublicationUploaded on: February 28, 2023
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2015 (v1)Publication
Il y a une dizaine d'années, l'un de nous (Gusst Nolet) travaillant avec Frederik Simons à l'Université de Princeton, avait observé une onde sismique P d'un séisme lointain de magnitude 6. Bien qu'il n'est pas rare de voir un séisme de cette ampleur, dont environ 200 se produisent chaque année, leur méthode d'observation était unique : aidé par...
Uploaded on: December 3, 2022 -
June 21, 2015 (v1)Journal article
We propose a new method to study the response of a hydrophone at very low frequencies. In our method, the hydrophone is placed in a calibration chamber filled with water and, by instantaneously changing the water height, an abrupt pressure increase of about 1000 Pa is produced. The pressure variation mathematically corresponds to an input...
Uploaded on: March 25, 2023