The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2024
Filed:
Aug. 11, 2023
Qingdao Innovation and Development Center of Harbin Engineering University, Qingdao, CN;
Harbin Engineering University, Harbin, CN;
Yongyao Chen, Qingdao, CN;
Xin Wang, Harbin, CN;
Junjie Li, Qingdao, CN;
Zedong Ma, Harbin, CN;
Liang Zhang, Harbin, CN;
OINGDAO INNOVATION AND DEVELOPMENT CENTER OF HARBIN ENGINEERING UNIVERSITY, Qingdao, CN;
HARBIN ENGINEERING UNIVERSITY, Harbin, CN;
Abstract
Provided is a swim bladder bionic amphibious optical fiber ocean acoustic sensor, belonging to the field of optical fiber ocean sensors, consisting of a sound sensitive diaphragm, a diaphragm supporting shell, a section of coated optical fiber, a single-hole optical fiber sleeve and a single-mode optical fiber. An upper surface of the supporting shell is provided with two symmetrical overflow holes, and a structure includes a back cavity communicated with the overflow holes. A medium in the back cavity of the sensor may be replaced by inflating, deflating and filling water through the overflow holes, to achieve impedance matching with external environments. When the back cavity is inflated, the sensor serves as a fiber-optic microphone, and when the back cavity is deflated and filled with water, the sensor serves as a fiber-optic hydrophone. The working states could be switched flexibly to achieve a working mode like a swim bladder.