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114results about How to "Large deviation" patented technology

GC-IRMS direct measurement method for hydrogen sulfide sulfur isotope in mixed gas

The invention relates to a GC-IRMS direct measurement method for hydrogen sulfide sulfur isotope in mixed gas, which comprises the steps of: firstly, by utilizing a gas chromatogram-stable isotope ratio mass spectrum combined instrument with I s o d a t N T 2.0 software, carrying out the magnetic field control so that an intermediate receiving cup receives ions with the receiving charge-to-mass ratio of 35, which are 35H2S, and correspondingly, receiving cups on two sides respectively receive ions with charge-to-mass ratios of 34 and 36, which are 34H2S and 36H2S, and recording a numerical value of a magnetic filed at the moment; then correcting the instrument by H2S reference gas; secondly, injecting a plurality of gas samples containing 1-5ml H2S into a gas chromatograph in the instrument, and meanwhile obtaining gas chromatograms of 36H2S, 35H2S and 34H2S and gas chromatograms of ratios of 36H2S/34H2S and 35H2S/34H2S; finally, processing obtained data to gain a value of hydrogen sulfide sulfur isotope in a mixed gas sample. The GC-IRMS direct measurement method has the characteristics of simpleness, rapidness, accuracy and small sample consumption, and does not need sample preparation and correction of interference isotopes.
Owner:LANZHOU CENT FOR OIL & GAS RESOURCES INST OF GEOLOGY & GEOPHYSICS CAS

Synthetic aperture interferometric radiometer image inversion method

The invention discloses a synthetic aperture interferometric radiometer image inversion method, which comprises the following steps: obtaining the probability measure initial value beta of visibility and the probability measure initial value ai of different pixels i according to the visibility data V of a target scene and the impact response matrix G of an interferometric radiometer; calculating the characteristic value lambda i of a GTG (grey to grey) matrix; calculating the mean value mu of a posterior probability and the variance sigma T|V of the posterior probability; updating beta and alpha; judging whether the probability measure updating value beta new of the visibility and a probability measure updating value alpha new are simultaneously restrained or not; if so, substituting the probability measure updating value beta new of the visibility, the probability measure updating value alpha new, the mean value mu of a posterior probability and the variance sigmaT|V of the posterior probability into a formula p (T|G, anew, beta new)=N(T|u, sigma T|V) to obtain brightness temperature image distribution T; and if not, returning to further calculate mu and sigma T|V. According to the synthetic aperture interferometric radiometer image inversion method disclosed by the invention, the computation complexity for obtaining an optimal model can be effectively lowered, an inversion result with small variance and deviation is obtained, influence on an inversion result by the noise is reduced, the resolution ratio of the inversion image is effectively improved, and the synthetic aperture interferometric radiometer image inversion method is a synthetic aperture image inversion method which can automatically select the optimal model.
Owner:HUAZHONG UNIV OF SCI & TECH

Aligning and matching system and method for liquid crystal display panel

The invention provides an aligning and matching system for a liquid crystal display panel. The system comprises a substrate temporary storage region, a reference database, a detection unit, a first database, a second database, a control unit and a selection and output unit, wherein the detection unit measures first relative data and second relative data, relative to reference data in the reference database, of the first substrate and the second substrate in the liquid crystal display panel; the control unit matches the first relative data with the second relative data and acquires the first relative data and the second relative data which are matched with each other best; and the selection and output unit selects the first substrate and the second substrate, respectively corresponding to the first relative data and the second relative data which are matched with each other best, in the substrate temporary storage region according to the first relative data and the second relative data which are matched with each other best, and outputs the selected first substrate and the selected second substrate to other manufacturing processes. The invention also provides an aligning and matching method for the liquid crystal display panel. By using the system and the method, the alignment accuracy of the first substrate and the second substrate of the liquid crystal display panel are improved.
Owner:KUSN INFOVISION OPTOELECTRONICS

Feeding mechanism for lathe

The invention discloses a feeding mechanism for a lathe. The feeding mechanism structurally comprises a manually-adjusted feeding rotary disc, a tapping tube, a turning and feeding cutter replacementdevice of an automatic-stop anti-collision cutter, a turning cutter rack, a feeding guide rail plate, a cutting depth movement device, a cutting depth adjusting rotary disc and a position locking valve, wherein the manually-adjusted feeding rotary disc is mounted at the direct front end of the cutting depth movement device and is connected with the cutting depth movement device in an embedding manner; the tapping tube is positioned on the right side of the turning and feeding cutter replacement device of the automatic-stop anti-collision cutter and is connected with the turning and feeding cutter replacement device of the automatic-stop anti-collision cutter in an electric welding manner; the turning cutter rack is mounted on the upper surface of the turning and feeding cutter replacementdevice of the automatic-stop anti-collision cutter. According to the feeding mechanism disclosed by the invention, while machining and feeding of the cutter and adapting and replacement of the cutterare controlled, cutter collision caused by over-large feeding quantity can be stopped in time so as to be protected, and therefore, abrasion of cutter edges of the cutter is avoided while chipping andbreaking of the cutter can be prevented at the same time so as to avoid influence of machining of workpieces; meanwhile, an alarm is started to prompt working personnel to maintain the cutter, so that the phenomenon that deviation of molded workpieces is large when the cutter edge is broken and is then machined is avoided.
Owner:黄红兵
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