58 results about "Six port" patented technology

A headspace sampling apparatus collects headspace vapor from a container holding a vapor phase and a non-vapor phase of a substance which is to be analyzed. The apparatus includes a dual needle apparatus (55). The dual needle apparatus is extended through a septum into a headspace portion (57) of a vial (58) holding the substance for analysis. A purge gas is supplied to a first fluid passage (54) in the dual needle. The purge gas sweeps the material in the headspace and passes the sample through a send fluid passage (56) in the needle. The extracted sample is selectively directed through a six port valve (76). In a first condition of the valve the sample is directed to a trap (80) for collection therein. After sample collection the condition of the six port valve is changed. Material is desorbed from the trap and directed through the valve into an analytical instrument (82). The ratios of the volumes occupied by liquid or solid phase of the substance and the vapor phase in the headspace of the vial is adjusted to selectively maximize sensitivity.

A system for automatically performing liquid chromatography analysis of low volume liquid chemical samples at nanosecond flow rates using an analysis column that integrates a pre-concentration trapping column and a chromatography separation column terminating at an electrospray nozzle of an online mass spectrometer. The analysis column consists of a capillary having an inside diameter of between 75 and 125 microns packed throughout with a porous bed of micron particles. A branch outlet positioned 10 to 16 centimeters upstream from the nozzle divides the analysis column into an upstream pre-concentration trap and a downstream separation column. An autosampler delivers low volume liquid samples to the upstream inlet via a two-position valve. Feed connections couple the autosampler to upstream inlet when the valve is open to inject a liquid sample into the pre-concentration trap at a maximum loading flow rate in the range from 0.5 to 50 microliters/minute. Thereafter, when the valve closes, it terminates the further injection the sample, and a concentrated portion of the sample then passes though the chromatography separation column at a much slower flow rate between 10 and 1,000 nanoliters per minute. Throughput can be doubled by coupling two such analysis columns to a single autosampler using a ten-port, two position valve. A single column can be supplied through a six port two-position valve.

The invention aim to shorten computing time used for system parameters of a five-port knot or a six-port knot e.g. a network analyzer (VNA), thereby simplifying a structure of a tested circuit. VNA is used to test the system parameters required by a tested device (DUT), but in the prior art, the system parameters are computed according to positions and diameters of centers of three circles on a complex plate based on complex amplitude ratio of input ports W=a2/a1, just like the known integration method, complex steps are needed. The invention performs computation based on points of intersection of three circles of the system parameter k on the complex plane, e.g. three waves with phase difference 120 degrees are input in turn to input ports of the five-port knot, power values are output normalizedly based on the preset reference power, to compute the system parameters. Compared with the integration method in the prior, computation is simple, and no phase shifter is required.

The invention discloses a chromatographic automatic sampler and automatic sampling method. The chromatographic automatic sampler comprises a four-way valve, a quantitative loop, an injection valve anda six-way valve, wherein the four-way comprises four ports a, b, c and d and outer ends of the four ports are respectively connected with an injector, a cleaning fluid storage bottle, a first waste fluid bottle and a buffer tube; one end of the quantitative loop is communicated with the buffer tube; the injection valve comprises three ports A, B and C and two passages respectively used for communicating the ports A and C and communicating the ports A and B in a switchable manner; the outer ends of the three ports A, B and C are respectively connected with the other end of the quantitative loop and one ends of a sampling needle and a connection ring; the six-way valve comprises six ports I, II, III, IV, V and VI and the outer ends of the six ports are respectively connected with one ends of high-pressure leacheate and a sampling ring, the other end of the connection ring, the other ends of another waste fluid bottle and the sample ring and a chromatographic column. When being used forcarrying out automatic sampling, the chromatographic automatic sampler has the advantages of being high in sampling amount correctness and high repeatability.

The invention belongs to the technical field of optical fiber measurement, and particularly relates to a common-path forward-reverse simultaneous measuring device for a fiber optic gyroscope ring. The common-path forward-reverse simultaneous measuring device for the fiber optic gyroscope ring comprises a light source device, a testing device 11, an optical path correlator 12, and a photoelectric signal conversion and signal recording device 13, wherein the optical path correlator 12 consists of a first six-port coupler 121, a second six-port coupler 122, a first collimating lens 123, a second collimating lens 124 and a scanning table 125. By adopting the common-path forward-reverse simultaneous measuring device, the testing time of a fiber optic gyroscope ring polarization coupling measuring device is shortened, the measurement efficiency is improved, the influences of environmental factors such as temperature are eliminated, and the polarization coupling symmetry of the fiber optic gyroscope ring can be obtained accurately.

The invention discloses a dielectric integrated suspension line-based six-port network. The dielectric integrated suspension line-based six-port network comprises a dielectric integrated suspension line and a six-port circuit, wherein the six-port network is arranged on the dielectric integrated suspension line, the dielectric integrated suspension line comprises five layers of double-side printedcircuit boards which are laminated from top to bottom, the six-port circuit is printed on the third layer of circuit board and comprises four couplers, the four couplers are annularly connected by employing a strip line structure, each coupler employs a patch design, and respective cavity of the couplers is independent. The six-port circuit has the characteristics of low loss, self assembly, integration, low cost and high integral cost performance.

The invention provides a realizing method of a six-port phase detector. The realizing method of the six-port phase detector is used for detecting a phase of a radio frequency (RF) signal. According to the realizing method of the six-port phase detector, firstly, a traditional circuit model is modified, then according to the amplitude and a phase of a vector quantity and a base band vector quantity F related to a RF unknown signal, a certain reference signal is generated, can be used for measuring the phase of the unknown signal and is applied to phase verification and phase sequence verification of microwaves, a receiver and a radar. A traditional phase detection device is prone to external disturbance, and is low in signal to noise ratio and sensitivity and complex in system constitution. The realizing method of a six-port phase detector is high in sensitivity and signal to noise ratio, good in stability, strong in capacity of resisting disturbance, and simple and reasonable in structure, thereby obtaining an optimal phase detection result.

The invention discloses a pumped storage power generator running at continuously variable speed and non-continuously variable speed. The generator is designed to increase the comprehensive running performance of a pumped storage power generator set so that the generator set can be applied to a wider water head scope, achieve high speed adjustment to active power, provide frequency automatic control capacity, increase the stability, and realize smooth self-startup. The technical solutions of the invention are as follows. The generator is a three-phase AC power supply type generator whose outlet wires from the stator winding and the excitation winding are in a six-port manner. Both the stator winding and the excitation winding adopt a speed regulating mode, allowing the switch between a high speed rotation gear and a low speed rotation gear. At the high speed rotation gear, the stator winding is in YY type connection. At the low speed rotation gear, the stator winding is in Y type connection. According to the invention, the power generator can expand the rotation speed change scope of a generator set. With changeable speed, the generator can be better applied to meet the requirements of power generating and water pumping so that the working efficiency of water wheels and water pumps can be improved.

The invention discloses a device and a method for detecting the non-methane total hydrocarbon content and the fractional hydrocarbon content of carbon dioxide. The device comprises a column box, and afirst six-port valve, a second six-port valve, a sample quantifying tube, a first chromatographic column, a second chromatographic column and an FID detector which are arranged inside the column box,wherein a port VI-a of the first six-port valve is connected with a sampled gas input pipe; a port I-a is connected with a sampled gas output pipe; a port V-a is connected to a port II-a through thesample quantifying tube; a port IV-a is connected with the carrier gas input pipe; a port III-a is connected with one end of a carrier gas output pipe; a port II-b of the second six-port valve is connected with the other end of the carrier gas output pipe; a port I-b is connected to a port VI-b through the first chromatographic column; a port V-b is connected with the FID detector; a port III-b isconnected to a port IV-b through the second chromatographic column. Through the device and the method, the non-methane total hydrocarbon content and the fractional hydrocarbon content of a sample canbe simultaneously analyzed under the conditions that an additional analytical instrument is not used and the chromatographic columns are not replaced, the operation is simple and convenient, the analysis speed is high and the analysis precision is high.

An adaptive radar ratio method slot-coupling direct micro-nano microwave detecting and demodulating system of the invention is mainly composed of a six-port slot coupler, a microwave phase detection module, a microwave frequency and power detection module and a demodulation module. The adaptive radar consists of an antenna, a transmitting-receiving conversion circuit, a ratio method slot-couplingdirect micro-nano microwave detecting and demodulating monolithic system, a signal memory, a signal analyzer, a microwave signal reconstructor, a microwave signal modulator, and a microwave signal power amplifier. An indirect heating microwave power sensor uses polycrystalline silicon nanowire clusters to form a thermocouple arm. The polycrystalline silicon nanowire clusters have thermal conductivity much lower than that of a conventional bulk material, have high thermoelectric conversion efficiency, and can greatly improve the sensitivity of the microwave detection system. The above structurecan integrate the power detection module, the frequency detection module, and the phase detection module of the microwave signal, and can simultaneously and synchronously detects the power, the frequency and the phase of the microwave signal and demodulates a modulated signal.

A quantitative concentration and enrichment sample injecting device and method of a proton transfer reaction ion source comprises a collection/sample injecting six-way valve, a semiconductor refrigerator, an electric heating driver, a gas extracting meter, a gas extracting pump and a central controller. A capturing pipe supportive of direct electric heating and condensation is arranged in a vacuumrefrigerating cavity of the semiconductor refrigerator and connected with a heating electrode and the electric heating driver, six ports of the collection/sample injecting six-way valve are a zero gas port, a PTR sample injecting port, a sample injecting end port, a sampling port, a capturing gas extracting pump port and a sample ejecting end port, and the gas extracting pump is connected with ametering device. The device can realize switching between two working states like collection/sample injecting and switching of condensing capture and heating analysis. Forward sampling and reverse sample injecting are realized in a same system according to gas flow direction, so that diffusion is reduced, concentration of samples after analysis is increased, and sensitivity is improved by 2-4 orders of magnitude.

The present invention discloses an high-contrast photonic crystal “OR”, “NOT” and “XOR” logic gate, comprising a six-port two-dimensional photonic crystal, a nonlinear cavity unit and a cross-waveguide logic gate unit; the high-contrast photonic crystal “OR” logic gate includes a first reference-light input port, two first idle ports, two first signal-input ports and a first signal-output port; the high-contrast photonic crystal “NOT” logic gate includes two second reference-light input ports, two second idle ports, a second signal-input port and a second signal-output port; and the high-contrast photonic crystal “XOR” logic gate includes a three reference-light input port, two three-idle ports, two three-signal input ports and a three-signal output port; the cross-waveguide logic gate unit is arranged with different input or output ports; and the nonlinear cavity unit is coupled with the cross-waveguide logic gate unit. The structure of the present invention is easy to integrate with other optical logic elements.

A micro-nano electronic machinery system indirect heating microwave radiometer based on a cantilever beam comprises a microwave antenna, a low-noise amplifier, a six-port cantilever beam coupler, a microwave frequency and power detection module, an amplifier, a single chip microcomputer and a liquid crystal display. Signals received by the microwave antenna are amplified to enter the six-port cantilever beam coupler, the coupled signals are used for power and frequency detection, the signals are calculated through the single chip microcomputer, and the radiation signal frequency and power aredisplayed on the liquid crystal display. The micro-nano electronic machinery system can obtain radiation frequency and radiation intensity of radiation signals at the same time, replaces a traditionaldiode with an indirect heating vertical nano microwave power sensor as a microwave power sensor and is high in linearity, small in temperature excursion and high in power upper limit, the heat conductivity of polycrystalline silicon nanowires is far lower than traditional bulk materials, and therefore, the thermoelectric conversion efficiency is improved, the output voltage is greatly improved, and the sensitivity and the precision of the radiometer are improved.

The invention discloses a six-port microwave reflectometer self-calibration device, comprising a coupler, a phase power switching module, a single-pole-four-throw microwave switch, an inserting element module, and a single-pole-double-throw microwave switch, which has one input end and two output ends and can generate 8 sets of self-calibration signals. The phase power switching module is connected to the inserting element module though the single-pole-four-throw microwave switch. The single-pole-four-throw microwave switch and the single-pole-double-throw microwave switch are controlled by the PC to achieve automatic switching of the calibration state. According to the six-port microwave reflectometer self-calibration device, eight standard states can be generated for self-calibration ofthe six-port microwave reflectometer, and the test error is corrected, thereby greatly improving the measurement accuracy.

The present invention relates to a method and a receiver for high-frequency signals. The receiver comprises a power divider(4)to divide a modulated RF input signal in at least two branches. At least one delay line(5, 6)is provides for a delay of the branches relatively to each other by a predetermined delay constant. A calculation circuit(7, 8)calculates at least three power levels based on combinations(12, 13, 14)of the two branches of the input signal relatively delayed(5, 6)to each other. A processing means(10)calculates the phase and the amplitude of a complex signal representing the relation between the two branches of the input signal relatively delayed to each other, on the basis of the said at least three power levels(8). The invention therefore provides for a direct 6-port receiver based on non-coherent detection. The concept of the invention is inherently cheap and features high integration ability and low-cost processes. Ideally the whole RF front end can be placed on one chip.

The invention relates to multifunctional large aperture oil (gas) extraction well head equipment, and belongs to the petroleum machinery design manufacture technical field; the multifunctional large aperture oil (gas) extraction well head equipment comprises a tubing head cross joint, a liquid operated gate valve, a hand-operated gate valve, a six-port, and a small cross joint; the six-port is connected between the top of the hand-operated gate valve and a lower port of the small cross joint. The six-port is arranged between the hand-operated gate valve and the small cross joint so as to increase inlet paths of the well head equipment, thus creating conditions for selecting a matching large aperture main drift diameter; under the conditions, four cracking machine can be connected through the front, rear, left and right paths of the six-port; water and agents can be injected underground, thus improving work efficiency; the caliber can be enlarged so as to effectively reduce the pressure in the well head equipment, and thus improving safety factor of the equipment; the multifunctional large aperture oil (gas) extraction well head equipment is high in work efficiency, and large in safety factor.

The invention provides an EHF frequency band microwave network device with a novel structural design. The device comprises a wave separator provided with six ports; Four Q/K frequency band cavity filters; two + 45 DEG phase shifters; two-45 DEG phase shifters; a combiner provided with five ports; a separator polarizer; and a K-band orthogonal mode coupler. The four Q/K frequency band cavity filters are respectively connected to a front side port, a rear side port, an upper side port and a lower side port of the wave separator. One end of the two +45 DEG phase shifters in the same direction are respectively connected to the two Q/K frequency band cavity filters, and the other ends of the two +45 DEG phase shifters are respectively connected to the combiner. One end of the two -45 DEG phase shifters in the same direction is connected to the two Q/K frequency band cavity filters, the other end of the 45-degree phase shifter is connected to the combiner, and the separator polarizer is connected to a left side port of the wave separator. The K-band orthogonal mode coupler is connected to a left side port of the combiner. A circular waveguide is connected to the port of the right sidesurface of the wave separator.

An adaptive radar phase-comparing method slot-coupling direct micro-nano microwave detecting and demodulating system of the invention is mainly composed of a six-port slot coupler, a microwave phase detection module, a microwave frequency and power detection module and a demodulation module. The adaptive radar consists of an antenna, a transmitting-receiving conversion circuit, a phase-comparing method slot-coupling direct micro-nano microwave detecting and demodulating monolithic system, a signal memory, a signal analyzer, a microwave signal reconstructor, a microwave signal modulator, and amicrowave signal power amplifier. An indirect heating microwave power sensor uses polycrystalline silicon nanowire clusters to form a thermocouple arm. The polycrystalline silicon nanowire clusters have thermal conductivity much lower than that of a conventional bulk material, have high thermoelectric conversion efficiency, and can greatly improve the sensitivity of the microwave detection system.The above structure can integrate the power detection module, the frequency detection module, and the phase detection module of the microwave signal, can simultaneously and synchronously detects thepower, the frequency and the phase of the microwave signal and demodulates a modulated signal.