48results about How to "Reduce outside distractions" patented technology

A method and apparatus provide fluid treatment at a plurality of distinct points utilizing magnetic energy concentrated in a plurality of distinct areas along a fluid flow path and at least one region of pulsed fluid treatment within a fluid treatment chamber. The instant invention prevents the formation and accumulation of contaminants within conduits and on equipment utilized in the transportation, delivery and processing of fluid columns. It may also be utilized to accelerate the separation of oil and water and increase the efficiency of oil / water separation equipment.

A soil or snow probe which incorporates a load cell in the probe head and also an accelerometer so that a vertical strength profile of the snow or soil can be established. The device does not need to be driven at a constant speed and can be manually driven into the soil or snow. The resistance to penetration is measured using a load cell which incorporates a low duro polymer selected for its ability to behave like a non compressible fluid. The device is portable and provides data quickly.

A linear drive apparatus comprising: a guide having an internal body; a slider moved along the guide, a driving mechanism for generating a driving force by magnetic interaction of the slider with the guide so as to linearly drive the slider; and a magnetic measurement unit having a magnetic scale and a detector which are opposed to each other and change a relative position relative to each other in order to obtain the relative position of the slider relative to the guide, wherein an opposing direction of the magnetic scale and the detector is the direction of the outer circumference of the guide, and the detector detects a signal from the magnetic scale in accordance with the relative position of the slider, whereby the relative position of the slider is obtained.

The invention relates to a polarization-maintaining multi-core fiber. The polarization-maintaining multi-core fiber comprises a plurality of fiber core areas and a total outer cladding layer, wherein the plurality of fiber core areas comprise a central fiber core area and two or more than two outer fiber core areas which are uniformly distributed on the periphery of the central fiber core area at equal intervals. The central fiber core area is a polarization-maintaining fiber core area, each outer fiber core area comprises a fiber core and an inner cladding warping a core layer, and the part out of the fiber core areas is a total outer cladding. The polarization-maintaining multi-core fiber can greatly enhance the spectrum efficiency of the optical transmission system and can improve the optical fiber communication capacity, and the polarization-maintaining fiber core area is arranged to ensure that a waveguide structure has the function of maintaining polarized light and can be used for conducting local oscillator light. In the occasions such as a high-capacity access network of the self-coherent detection or the interconnection of data centers, the polarization certainty of local oscillation light can be improved, an automatic polarization controller is saved, the complexity of a photoelectric device and a DSP (digital signal processor) at a receiving end is reduced, and the system delay is greatly reduced, so that the system cost is reduced.

An optical keyswitch includes a casing having a movable portion, a shaft movably disposed on the casing, a resilient member accommodated in the casing, and a switch module including a circuit board, an emitter, and a receiver. The emitter emits an optical signal along an optical path to the receiver. When the shaft is at a non-pressed position, the movable portion has a first spatial relation with the optical path, and the receiver receives the optical signal of a first intensity. When the shaft moves, in response to a pressing force, to a pressed position, the shaft compresses the resilient member and pushes the movable portion to move, so the movable portion no longer has the first spatial relation with the optical path, the optical signal received by the receiver has a second intensity different from the first intensity, and the switch module is triggered to generate a triggering signal.

There is provided an underwater measurement system (20, 30, 40) for monitoring an underwater region (10). The system (20, 30, 40) includes a sensor assembly operable to sense at least one physical variable in the region (10) for generating at least one corresponding sensor signal, and a data processing arrangement (170, 510, 520) for processing the at least one sensor signal to generate processed data for presentation and / or logging. The sensor assembly (20) includes one or more voltage sensors (190) configured to sense electric fields present in the underwater region (10) and provide information in the at least one signal indicative of the electric fields. Moreover, the sensor assembly (20) includes one or more hydrophones (200) operable to receive sonic energy generated in the underwater region (10) and to include corresponding information in the at least one sensor signal for communicating to the data processing arrangement (170, 510, 520).

A method and apparatus provide fluid treatment at a plurality of distinct points utilizing magnetic energy concentrated in a plurality of distinct areas along a fluid flow path and at least one region of pulsed fluid treatment within a fluid treatment chamber. The instant invention prevents the formation and accumulation of contaminants within conduits and on equipment utilized in the transportation, delivery and processing of fluid columns. It may also be utilized to accelerate the separation of oil and water and increase the efficiency of oil / water separation equipment.

The invention relates to a distribution photometer system comprising a base, a first rotating shaft, a second rotating shaft, a plurality of light signal sampling units and an upper computer, wherein the first rotating shaft is positioned on the base and is also connected with a rotating arm; respective control execution modules are arranged near various execution parts of a distribution photometer; each module is internally provided with a microcomputer and a power supply unit; the modules communicate with the upper computer in a wired way or a wireless way through a three-wire, two-wire or wireless digital signal channel, so that the distribution control can be realized; meanwhile, a digital signal channel and a power supply channel in the rotating arm are conducted to the base through a conductive sliding ring arranged on the first rotating shaft. With the measures, the invention greatly reduces connecting leads in the distribution photometer, reduces the interactive interference and the outside interference among the connecting leads, and improves the reliability and the real-time property for data transmission, thereby improving the control and measuring precision of the system and being convenient to maintain and manage the system; meanwhile, the invention also solves the winding problem of a distribution photometer in the operation process.

The invention relates to an array type polarization-maintaining multicore fiber. The array type polarization-maintaining multicore fiber comprises a total outer cladding layer and fiber core units, and the array type polarization-maintaining multicore fiber is characterized in that: the array type polarization-maintaining multicore fiber further comprises stress units, the fiber core units and the stress units are distributed to form a unit array; the unit array comprises a central unit, and the distance between any unit and the adjacent unit is equal; there are at least one pair of stress units; each pair of stress units are distributed symmetrically around one fiber core unit to form a polarization-maintaining fiber core unit; each fiber core unit comprises a fiber core and an inner cladding layer which surrounds the core layer; and the fiber core units and the parts out of the stress units are the total outer cladding layer. The array type polarization-maintaining multicore fiber greatly enhances the spectral efficiency of the optical transmission system, improves the optical fiber communication capacity, arranges the polarization-maintaining fiber core in the multicore fiber to ensure that a waveguide structure has the function of maintaining polarized light, can effectively improve the polarization certainty of local oscillator light, saves an automatic polarization controller, reduces the complexity of a photoelectric device and a DSP at a receiving end, and greatly reduces the system delay, thereby reducing the system cost.