The invention provides an all-optical network hydrophone. The all-optical network hydrophone comprises a cantilever beam and fiber wool, wherein the cantilever beam and the fiber wool are arranged ina packaging shell; the cantilever beam is vertically fixed in the packaging shell in a cross manner; the fiber wool vertically penetrates through the cross joint of the cantilever beam, and is dividedinto upper-end fiber wool and lower-end fiber wool; the packaging shell is in a cylinder shape; an incident light guide optical fiber connected with a light source is arranged at the bottom of the packaging shell; emergent light guide optical fibers connected with a signal processing module are arranged on the side walls of the packaging shell; the emergent light guide optical fibers are arrangedat the two adjacent vertical cross end parts of the cantilever beam; grids are arranged above the packaging shell; and a strip-shaped reflective material coats the lower-end fiber wool. According tothe hydrophone, weak signals can be detected; electromagnetic interference can be avoided; specific frequency signals can be screened; the impact of strong signals on an internal structure can be reduced; and part of frequency band signals can be filtered through diffraction.

All-optical network hydrophone

The invention provides a cylindrical three-dimensional vector hydrophone, comprising a four-beam cilium type circular structure and a cylinder structure set at the bottom of the four-beam cilium typecircular structure. The cylinder structure comprises a hollow cylinder supporting body of which top surface is connected with a bottom surface of the four-beam cilium type circular structure, a secondcilium of which two ends are supported on the inner wall of the hollow cylinder supporting body, a supporting rod which is set in the hollow cylinder supporting body, wherein two ends of the supporting rod are connected with the second cilium and the four-beam cilium type circular structure, pressure-sensitive sensors II which are set on the inner wall of the hollow cylinder supporting body and are symmetrically set at two sides of one end of the second cilium, and fixed value resistors which are set on the inner wall of the hollow cylinder supporting body and are symmetrically set at two sides of the other end of the second cilium. According to the cylindrical three-dimensional vector hydrophone, through mutual combination of the four-beam cilium type circular structure and the cylinderstructure, a signal in a three-dimensional space is detected.

Cylindrical three-dimensional vector hydrophone

The invention provides a three-dimensional hydrophone array system, which comprises a signal receiving module, a control management module, a data storage module and a display control terminal, wherein the signal receiving module consists of a hydrophone array and is in charge of receiving a signal; the control management module is controlled by an internal computer system; each hydrophone signal in the hydrophone array is input in sequence; after the hydrophone signal is input for 30-50 times, the signals are marked as one group of data, the group of data is integrated, calculated and stored, and a next group of data is repeatedly begun; the data storage module is used for recording each group of data in each time; and the display control terminal is used for displaying a signal processing result. The hydrophone array is formed in a way that a plurality of hydrophones are arranged according to a fish side line array; the hydrophone is connected through a connection device to form the array; and the connection device comprises a connecting arm, movable chain connection buttons and base plates. By use of the hydrophone array system provided by the invention, a plurality of hydrophones are subjected to spatial array arrangement, and a three-dimensional signal can be more accurately measured.

Three-dimensional hydrophone array system

The invention provides a triangular orthogonal vector hydrophone. The triangular orthogonal vector hydrophone comprises two vertically connected cilium type microstructures, wherein each cilium type microstructure comprises a triangular substrate, three cantilever beams, six pressure-sensitive sensors, two fixed-value resistors and one cilium; one ends of the three cantilever beam are connected with the inner wall of the triangular substrate and the other ends of the three cantilever beam are intersected at the center of the triangular substrate; the six pressure-sensitive sensor are arrangedon the three cantilever beams and have equal resistance; the two fixed-value resistors are arranged on the bottom surface of the triangular substrate; the bottom end of the cilium is vertically connected with the intersected ends of the three cantilever beams; and the two cilium type microstructures can measure signals on three-dimensional directions after being vertically combined. According to the triangular orthogonal vector hydrophone, the two vertically connected cilium type microstructures are arranged, and each cilium type microstructure adopts a novel triangular structure form, so thatthe signals on the three-dimensional directions can be measured.

Triangular orthogonal vector hydrophone

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Cylindrical three-dimensional vector hydrophone

Three-dimensional hydrophone array system

All-optical network hydrophone

Triangular orthogonal vector hydrophone