摘要:
A waveguide radiating element (10) is described comprising: —an electrically conductive support body (2, 12) inside which a first recess (3) is defined, delimited at the front by a radiating opening (4), and laterally delimited by at least one side wall (5, 6); —at least one electrically conductive impedance matching unit (20) having a portion (21) projecting from said side wall (5, 6) and positioned inside the first recess (3), the projecting portion (21) having a step or ramp-shaped surface. The impedance matching unit (20) comprises an attachment portion (22) adjacent to the projecting portion (21) and inside the electrically conductive body (2) a second recess (13) is defined, adjacent to the first recess (3) and communicating with the first recess (3), inside which the attachment portion (22) of the impedance matching unit (20) is coupled.
摘要:
A bistatic radar (1) is described comprising: —an active phased array transmitter antenna (20) adapted to irradiate a radio frequency output signal (40) and comprising a cylindrical or conical or truncated cone array of columns (21) of active transmission modules (22);—a receiving antenna (30) comprising a truncated cone array of columns (31) of reception modules (32) directed along the generatrix of a truncated cone, each reception module (32) comprising in cascade an antenna element (33), an analog amplifier (34) an analog to digital converter (36) adapted to produce digital samples in output; and—and a full digital beam forming block (3) adapted to receive in input and numerically process said digital samples.
摘要:
Movement system for tubular elements on a vessel comprising a lifting device between at least two positions a first position of which is a load position of the tubular element and a second position is an unload position of the tubular element towards another device of the movement system for tubular elements.
摘要:
Movement system and method for tubular elements on a vessel comprising a movement device, which comprises at least two reciprocally spaced trolleys provided with at least one engagement means able to engage with respective ends of the tubular element.
摘要:
The present invention relates to a tunnel transverse thrust apparatus for steering a ship, comprising a tunnel (10), which extends in a longitudinal direction X between a first (11) and a second aperture (12) and is destined to fully-cross the hull from one side to the other of the ship, and a thruster (20) having a propeller (21) positioned inside the tunnel. The thruster comprises a gear body (22) which supports the propeller at its first end (22'). This latter faces onto a first aperture of the tunnel and the gear body faces onto the second aperture. The tunnel has a protuberance (30) on one its inner walls, which protuberance extends along at least a perimetral section of the transversal cross-section of the tunnel, creating an accelerated flow area next to the second aperture when the propeller generates an incoming flow in the tunnel through the second aperture.
摘要:
Ship room assembly (10) comprising: at least a first room portion (11) defining at least a first compartment (21) suitable to be integrally mounted to a ship structure (14) and at least a second room portion (12) suitable to define at least one second compartment (22), wherein said second room portion (12) is slidably constrained to said first room portion (11) passing from a first closed position in which it overlaps at least partially with said first room portion (11) to a second extended position in which it defines at least one second room compartment (22) distinct from said at least one first compartment (21), and wherein said second room portion (12), when it is in the extended position, is suitable for projecting cantilevered from said ship structure (14), and wherein said second room portion (12) surrounding said at least one second compartment (22) confining it from the external environment.