@article{PAR00013354,
  title = {{H}ydrophone calibration at very low frequencies},
  author = {{J}oubert, {C}. and {N}olet, {G}. and {S}ukhovich, {A}. and {O}ge, {A}. and {A}rgentino, {J}. {F}. and {H}ello, {Y}ann},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e propose a new method to study the response of a hydrophone at very low frequencies. {I}n 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 {P}a is produced. {T}he pressure variation mathematically corresponds to an input signal close to a step function. {T}he response is recorded after filtering and digitizing so that we obtain the response of the complete system. {W}e also report on the development of an automatic method to determine the number of poles and zeros and their values that describe the observed response. {W}e apply our method to the {RAFOS} {II} hydrophone, used on the {M}obile {E}arthquake {R}ecorder in {M}arine {A}reas by {I}ndependent {D}ivers ({MERMAID}) floats. {A}s an illustration of the method, an instrumental response in terms of poles and zeros is used to correct seismograms from the 7 {A}pril 2014 ({M}-w 4.8) {B}arcelonnette earthquake, recorded by three {MERMAID}s deployed in the {M}editerranean {S}ea, and to express the observed signals in pascals.},
  keywords = {},
  booktitle = {},
  journal = {{B}ulletin of the {S}eismological {S}ociety of {A}merica},
  volume = {105},
  numero = {3},
  pages = {1797--1802},
  ISSN = {0037-1106},
  year = {2015},
  DOI = {10.1785/0120140265},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00013354},
}