8 results about "Common path" patented technology

The application discloses a service transmission method, an electronic device, a storage medium and a program product, and belongs to the technical field of automatic switching optical networks. A service transmission method comprises the following steps: based on a networking structure, a common path, a branch path and a branch station for transmitting a target service from a target source station to multiple sink stations are acquired, wherein the branch station is a starting station of the branch path; in response to transmitting the target service, the target service is transmitted from the target source station to the branch station corresponding to each sink station through the common path, so that the branch station transmits the target service to each sink station through the branch path corresponding to each sink station.

This invention discloses a dual-laser synergistic high-temperature, high-speed rotating object axial vibration measurement device, relating to the field of vibration detection technology. It includes a main plate and a radiation-resistant plate mounted on the main plate. A drive motor is installed on the main plate. Measuring the dynamic characteristics, such as axial vibration, of a high-speed rotating object at high temperatures is a challenging problem. This device uses a dual-laser measuring instrument for measurement, and also features non-contact functionality. Furthermore, the dual lasers can compensate for light path disturbances caused by hot airflow. Specifically, one laser acts as the main measurement optical path, while the other acts as a reference optical path, specifically monitoring common path optical noise caused by hot airflow. Through differential calculations by a subsequent signal processor, environmental noise is subtracted from the main signal, thereby extracting the pure vibration signal of the measured turntable.

A cementitious product (1) comprising: a substrate (2) formed from a cementitious material; and at least one branched channel (3) embedded within the substrate configured to provide a conduit for a second material to flow through the substrate; wherein the at least one branched channel comprises a plurality of interconnected channel elements, the plurality of interconnected channel elements comprising at least one diverging portion at which a plurality of paths diverge from a common path, and / or at least one converging portion at which a plurality of paths converge to a common path.

This invention relates to the field of microjets laser technology and discloses a microjets laser anti-backflow device, comprising: a housing, wherein a water inlet is provided on the surface of the housing, a lens is installed on the inner wall of the housing, a water flow surrounding cavity is provided on the inner wall of the housing, and a flow stabilizing mechanism is provided on the inner wall of the water flow surrounding cavity; and a mounting block, wherein the mounting block is installed on the inner wall of the housing, and a plurality of water flow holes and a flow injection hole are respectively provided inside the mounting block, and the water flow holes and the flow injection hole are connected. This invention can reduce water flow turbulence and bubble generation, and can achieve step-by-step flow stabilization, avoid local eddies, and ultimately form an ideal laminar flow at the nozzle, thereby improving processing accuracy. It can also cut off the most common path for bubble generation, avoid large bubbles generated by turbulent mainstream flow and vortex entrainment of air, and prevent gas precipitation throughout the flow area caused by large fluctuations in flow rate or pressure.

The application discloses an electro-optic crystal electric field sensing device and method based on dual-wavelength differential measurement, relates to the technical field of sensing, and utilizes the port isolation characteristic of a polarization maintaining ring to make incident light emitted by a light source enter from a first port, is output to an electro-optic crystal through a second port, and is returned along an original light path after being reflected by a reflecting sheet, passes through the electro-optic crystal, a collimating lens and the polarization maintaining ring again, and is guided to a third port to be output to a spectrometer, so that bidirectional transmission of the input and output of the light signal in the same optical fiber is realized; the complexity of the electric field sensing system is reduced, so that the cost is reduced; and the single-fiber bidirectional transmission reflection structure realized by the polarization maintaining ring integrates the originally separated input / output light paths into a common path, cancels the polarization state drift caused by environmental disturbance, and thus the measurement accuracy is improved. Therefore, the cost is reduced while the measurement accuracy of the electric field sensing device is ensured.