{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T02:35:58Z","timestamp":1774578958224,"version":"3.50.1"},"reference-count":25,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2020,3,30]],"date-time":"2020-03-30T00:00:00Z","timestamp":1585526400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Science and Higher Education of Russian Federation","award":["8.12870.201812.1."],"award-info":[{"award-number":["8.12870.201812.1."]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Low frequency hydrophone with a frequency range of 1\u2212300 Hz for marine seismic exploration systems has been developed. The operation principle of the hydrophone bases on the molecular electronic transfer that allows high sensitivity and low level self-noise at low frequencies (&lt;10 Hz) to be achieved. The paper presents a stabilization method of the frequency response within the frequency range at a depth up to 30 m. Laboratory and marine tests confirmed the stated characteristics as well as the possibility of using this sensor in bottom marine seismic systems. An experimental sample of the hydrophone successfully passed a comparative marine test at Gelendzhik Bay (Black Sea) with the technical support of Joint-Stock Company (JSC) \u201cYuzhmorgeologiya\u201d. One of the main results is the possibility of obtaining high-quality information in the field of low frequencies, which was demonstrated in the course of field tests.<\/jats:p>","DOI":"10.3390\/s20071944","type":"journal-article","created":{"date-parts":[[2020,4,1]],"date-time":"2020-04-01T03:44:13Z","timestamp":1585712653000},"page":"1944","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Frequency Response Stabilization and Comparative Studies of MET Hydrophone at Marine Seismic Exploration Systems"],"prefix":"10.3390","volume":"20","author":[{"given":"Egor","family":"Egorov","sequence":"first","affiliation":[{"name":"Department of Physical and Quantum Electronics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna","family":"Shabalina","sequence":"additional","affiliation":[{"name":"Department of Physical and Quantum Electronics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia"},{"name":"LLC R-Sensors, R&amp;D department, Dolgoprudny 141700, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0010-3152","authenticated-orcid":false,"given":"Dmitry","family":"Zaitsev","sequence":"additional","affiliation":[{"name":"Department of Physical and Quantum Electronics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergey","family":"Kurkov","sequence":"additional","affiliation":[{"name":"Department of Physical and Quantum Electronics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6084-5839","authenticated-orcid":false,"given":"Nikolay","family":"Gueorguiev","sequence":"additional","affiliation":[{"name":"Department of Mechanical Devices, Institute of Metal Science, 1574 Sofia, Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,3,30]]},"reference":[{"key":"ref_1","first-page":"5","article-title":"Operating principles and specifications of small-size molecular electronic seismic sensor with negative feedback","volume":"49","author":"Agafonov","year":"2013","journal-title":"Seismic Instrum."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"9653","DOI":"10.1109\/JSEN.2019.2927859","article-title":"The Temperature Dependence of Amplitude\u2013Frequency Response of the MET Sensor of Linear Motion in a Broad Frequency Range","volume":"19","author":"Chikishev","year":"2019","journal-title":"IEEE Sens. 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