34results about How to "Troubleshoot transfer issues" patented technology

The invention discloses a balance point Halo orbit phasing orbit transfer method taking the time constraint into consideration, relates to a Halo orbit phasing orbit transfer method based on an earth-moon three-body dynamic model and belongs to the technical field of aerospace. According to the method, a dynamic equation is established under a restrictive three-body model formed by the earth, the moon and the star, and a Halo orbit near the point L2 is generated under an earth-moon rotation system; the Halo orbit initial phase position of a detector and the phase position difference needing to be changed are determined, and the optimal fuel phasing orbit meeting the phase position constraint condition and the transfer time constraint condition is obtained through an optimization algorithm with the initial anchoring time and transfer time as optimization variables; and the time difference delta t, the task Halo orbit or the upper limit tmax of the transfer time are adjusted according to the task which the detector needs to fulfill, and the orbit shadow detection avoiding task or the spatial intersection detection task of the detector on the Halo orbit is fulfilled. The method can obtain the optimal fuel phasing orbit meeting the phase position constraint condition and the transfer time constraint condition, and has the advantages of good convergence, high flexibility and the like.

The invention discloses a spectral model transfer method based on cluster analysis, which comprises the following steps: (1) classifying samples, adopting a density clustering algorithm, and performing cluster analysis on samples according to the density distance between sample spectra, so as to classify samples Classify; (2) spectral modeling, according to the cluster analysis results, respectively establish spectral models for similar samples; (3) automatic model transfer, for the sample to be tested, collect its spectrum, and perform Cluster analysis to determine the category it belongs to, so as to determine the spectral model it belongs to; according to the spectral model the sample belongs to, perform quick sample measurement and automatically complete the model transfer. The method disclosed by the invention can quickly and efficiently complete the spectral model transfer, can be used for automatic instrument calibration, truly realizes rapid sample measurement, and ensures measurement accuracy.

The invention relates to an ultrathin carbon membrane preparation method which comprises the following steps: forming a carbonization precursor layer on the surface of a first substrate, and carryingout in-situ carbonization on at least a part of the carbonization precursor layer by using a laser writing technique to obtain a dense ultrathin carbon membrane, wherein the first substrate has a thermal expansion coefficient of minus 5*10<6>-60*10<6> / K, the first substrate has a laser absorption coefficient of 0.01-3, and materials of the carbonization precursor layer at least comprise carbonizeable macromolecules; the thickness of the carbonization precursor layer is 10-2000nm; the thickness of the ultrathin carbon membrane is 3-600nm. The method provided by the invention is rapid and efficient, low in cost and feasible in large-scale production, sizes and patterns of the carbon membrane can be automatically controlled, and the carbon membrane has an ultrathin thickness.

The invention relates to a household aerosol commodity quantity variable inspection method and a device. A volume conversion method is adopted so that firstly aerosol contents are transferred to a density bottle, and negative pressure of the density bottle is controlled by a vacuum pump and an extraction valve in the process of transferring, the negative pressure is -90KPa-95KPa, and the aerosol contents are controlled to release by an introduction valve. Then a relative density method formula is used to calculate quality of detected aerosol contents. The device comprises a port valve, a pipeline, the vacuum pump, the extraction pump, the introduction valve and the density bottle, the density bottle is connected with the extraction pump and the introduction valve by the port valve, the extraction valve is connected with the vacuum pump, and a material inlet of the introduction valve is connected with the port valve which is connected with a material outlet of a detected aerosol bottle. A sliding guide rail and a stepping motor are arranged below the detected aerosol bottle. A principle of differential pressure is adopted to solve the problem of transferring of the aerosol contents, solve the problem of control and transfer of the aerosol contents, and confirm the rules suitable for legal system measurement supervision.

The invention discloses an adapter device for a special-shaped connector of a special aerospace valve. The adapter device for the special-shaped connector of the special aerospace valve comprises a pipe joint nozzle, a screw sleeve, an outer sleeve, a seal ring, a taper sleeve and a seal rod, wherein the pipe joint nozzle is a hollow rotary body; a limiting step is arranged on the outer wall of the right end; external screw threads are arranged at two ends of the outer wall of the pipe joint nozzle; the screw sleeve is screwed onto the outer wall of the right end of the pipe joint nozzle; theright end of the screw sleeve and the right end of the pipe joint nozzle are on the same plane; an embedded cavity is formed between the pipe joint nozzle and the screw sleeve; the small end head of the special-shaped connector is embedded into the embedded cavity; the inner wall of the special-shaped connector at the embedded part fits to the outer wall of the pipe joint nozzle; the limiting stepis in butt joint with a smooth step, and the butt-joint part is sealed by the seal ring; the taper sleeve is of a tapered rotary body structure and is arranged on the right side of the smooth step ofthe small end head of the special-shaped connector; the outer sleeve is screwed onto the outer wall of the screw sleeve; and the taper sleeve is extruded into the embedded cavity. The fixed connection and the cavity communication between the pipe joint nozzle and the special-shaped connector are realized, so that the connection problem of the test of the special aerospace valve with the special-shaped connector is solved.