6 results about "Fluid wave" patented technology

The invention relates to the technical field of graphene new material preparation and precise acoustic control, in particular to a graphene film material production device and process, and the device comprises a beam forming control module which drives a sound field emission array to emit sound waves to a wet film; the disturbance monitoring module is used for collecting fluid fluctuation in real time and generating reverse suppression pressure through a reverse sound field reconstruction unit so as to update signals; the potential energy field construction unit is used for constructing layered standing wave nodes, forcing a nanosheet layer to be horizontally oriented by using acoustic radiation torque, and circularly operating until Mallangori convection is inhibited and a membrane material is cured; excessive drying or insufficient drying is avoided, and the mechanical strength and the production yield of the membrane material are further guaranteed.

Systems and methods of the present disclosure relate to identifying geometric features of a conduit. A method includes controlling a flow into or out of a conduit to induce pressure waves in the conduit; measuring, with a pressure transducer, pressure responses in the conduit due to contact of the pressure waves with a geometric feature of the conduit; and identifying the geometric feature, based on the pressure responses.

The present invention provides a steady-flow pressure-resistant high-sensitivity differential pressure flowmeter, comprising: a base. A sensing assembly is provided outside the base. A throttling assembly is provided in the base. The throttling assembly and the sensing assembly are communicated by means of a measurement channel to introduce a fluid in the base into the measurement channel for flow metering. The present invention aims to solve the problem that existing flowmeters during operation can only perform unidirectional measurement and cannot achieve bidirectional measurement when a fluid direction or a high / low pressure in a flow channel changes, and the problem that existing flow meters cannot accurately meter the flow in the presence of fluid fluctuations (when the fluid direction in a pipe changes).

To provide a floating wave energy converter (100) with high efficiency, which can also be manufactured and installed simply and cost-effectively, a floating wave energy converter (100) for converting energy from a wave motion of a fluid into electrical energy is provided, comprising a rotor unit (10) with a rotor shaft (11) and rotor wings (12) for generating a lift force (71) induced by the wave motion and causing the rotor unit (10) to rotate, a generator (20) for generating electrical energy, wherein the generator (20) is coupled to the rotor shaft (11) of the rotor unit (10) for torque transmission, and a receiving structure (30) for receiving the rotor unit (10) and the generator (20), wherein the wave energy converter (100) has a control element (40) comprising at least one movable guide surface (41) for controlling the movement of the wave energy converter (100) in the sea.

Systems and methods of the present disclosure relate to identifying geometric features of a conduit. A method includes controlling a flow into or out of a conduit to induce pressure waves in the conduit; measuring, with a pressure transducer, pressure responses in the conduit due to contact of the pressure waves with a geometric feature of the conduit; and identifying the geometric feature, based on the pressure responses.

The application provides a water pipe network leakage monitoring point layout optimization method. The method comprises the following steps: (1) obtaining pipe network information; (2) carrying out digital pretreatment on the pipe network information; (3) carrying out initial layout on the monitoring points; (4) determining the optimal number of monitoring points; and (5) obtaining the optimal layout of the monitoring points. The application fully utilizes the propagation characteristics and attenuation characteristics of fluid wave signals, establishes a calculation model of signal amplitude and fluid wave signal propagation distance, realizes quantitative evaluation of the attenuation of fluid wave signals of the leakage points, and sets the shortest interval between the monitoring points according to the evaluation, and the reliability of the result is high. The application combines the leakage monitoring point layout optimization and the fluid wave characteristics, and has the characteristics of high acoustic signal sensitivity, small error, wide detection range and the advancement of the genetic algorithm.