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156 results about "Instrument design" patented technology

Automated system for aggregated price discovery and electronic trading of linked cash/cash equivalent and their derivative asset packages

An electronic system for aggregated pricing of linked multi-leg (e.g., equity/option and option/option) asset packages with an additional link to an automated broker system for trading the linked asset packages are disclosed. The invention provides methodology and apparatus to electronically produce aggregated price quotes for packages of instruments designed to represent traditional trading strategies involving cash and their derivatives (e.g., stock and equity options). The system develops packages according to specified strategies, and prices the packages based on the national best bid and offer (NBBO) or direct input from participating market makers and investors. The packages are designed for easy understanding by traditional investors and designed for trading through a single order. These packages are desirable over separately trading the asset and its derivative (e.g., equity and option) instruments because they transfer market volatility risk from the investor to the institution by requiring market makers to agree to the aggregated price of the package prior to executing any trades. Certain linked packages, such as most stocks and options, cannot be traded together on a single floor of an exchange due to restrictions by the Securities and Exchange Commission (SEC) regarding side-by-side trading and integrated market making of most stocks and options. This invention provides an electronic process for synthetic side-by-side trading across separate trading locations (e.g., equity and option exchanges and within the existing rules of the SEC). The electronic process follows traditional rules regarding the manual handling of combination orders involving multiple asset types. The process significantly improves efficiency over manual handling resulting in a system that is scalable to high trade volumes.
Owner:SIDE BY SIDE TRADING

Three-dimensional ice form detection instrument

InactiveCN101865668ARealize horizontal acquisitionAvoid visual blind spotsUsing optical meansVision basedEngineering
The invention discloses a three-dimensional ice form detection instrument, which comprises externally purchase components such as a laser, a CCD camera, a step motor, a steering engine and the like. The three-dimensional ice form detection instrument also comprises a movement sub platform and a rotation sub platform, wherein the movement sub platform and the rotation sub platform are used for installing the externally purchase components, the movement sub platform is used for supporting the rotation sub platform to make the rotation sub platform move in the horizontal direction, and two guide rails arranged on the rotation sub platform can make the laser and the CCD camera be regulated to an angle satisfying the collection. The three-dimensional ice form detection instrument designed by the invention is based on the visual ice forms, can intuitively display the icing forms in an image mode, provides the visual technical solution scheme for researchers to accurately identify the three-dimensional ice forms and to obtain the dimension data of the ice forms, has important significance and practical value of the later stage study of influence of icing on the aircraft aerodynamic performance, and provides test verification detection measures for the three-dimensional ice forms obtained through calculation.
Owner:BEIHANG UNIV

Method and structure for collecting tiny dust particles

InactiveCN102175486AImprove in situ monitoring sensitivitySimple structural designWithdrawing sample devicesMass ratioEngineering
The invention discloses a method and structure for collecting tiny dust particles and provides a method and structure for collecting tiny dust particles from a spacecraft orbit environment. By adopting the method, the charge-mass ratio of tiny dust particles can be measured quantitatively under the condition of simulating the spacecraft orbit environment, and the national mass in-situ monitoring sensitivity is increased to 1.10*10<-9> to 4.42*10<-9> g/cm<2>; a dust particle charge-mass ratio testing instrument is simple in structural design and mainly comprises a circular grid plate, a hollow cylindrical capacitor and a QCM (Quartz Crystal Microbalances), so that the accuracy of measured data is greatly increased in the testing process and the load using risk of a spacecraft orbit is lowered; in the method, the hollow cylindrical capacitor is used, the design size of the instrument is reduced and a signal acquisition circuit and an assembly box are used, so that the charge-mass ratio of tiny dust particles is well measured and the testing process is stable and reliable; and due to the adoption of the QCM, the mass change of passing particles is well measured, the testing process is stable and reliable and high reproducibility is achieved. The method and the structure have the characteristic of in-situ monitoring of the charge-mass ratio of particles in the spacecraft orbit environment, and are suitable for scale test, production, research and the like.
Owner:NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH

Portable type unified glare measuring apparatus

The invention mainly relates to measurement on unified glare indexes, belonging to the field of photoelectric detection and instrument design, applicable to detecting the unified glare rating of architectural lighting. A portable type unified glare measuring apparatus disclosed by the invention is composed of an optical imaging system, an image transmission interface, an image processing module, a correction module, a calculating and transmitting system, a CPU, a display system and a power module. The optical imaging system provided with an ultra wide angle lens is in charge of acquiring an image of an object which causes unified glare at a predicted position and transmitting the image to the image processing module by virtue of the image transmission interface, and the image processing module carries out filtering and enhancing and the like on the image. The correction module corrects the brightness of the processed image according to predetermined correction parameters, thus the apparent brightness of the object in the image is equivalent to the apparent brightness of a real object. The calculating and transmitting system calculates the unified glare indexes of the corrected image, then the unified glare indexes are transmitted to the CPU, and the CPU controls a liquid crystal display screen to display related information. The portable type unified glare measuring apparatus has high detection speed and small error and is portable.
Owner:CHANGCHUN UNIV OF SCI & TECH

Resolving method of rotating shaft of digital zenith instrument

The invention belongs to the technical field of geodesic astronomy measurements, particularly relates to the digital zenith instrument. The technical solution is as follows: a resolving method of a rotating shaft of a digital zenith instrument, comprising the following steps: (A) building an image model of symmetrical observation pictures; (B) building resolving equation of the rotating shaft and computing Charge Coupled Device (CCD) plane coordinate; (C) computing ideal coordinate and earth coordinate of the rotating shaft; and (D) iteratively computing the rotating shaft. Actual experiments verifies that the method can accurately complete resolving of the rotating shaft in the location of the zenith instrument; the national first-class astronomical measurement accuracy level (not more than 0.3 inches and mLambda is not less than 0.3 inches) can be achieved primarily according to the digital zenith instrument designed by the invention; meanwhile, inner parameters such as focal length, principal point coordinate, distortion coefficient and so on do not need to be known; and the inner parameters are difficult to standardize when the optical axis resolving principle. Due to the fitting model, the method is suitable for tiny change of the optical system in a certain range, so that the system is more practical in the field environment.
Owner:中国人民解放军第二炮兵装备研究院第五研究所

Non-orthogonal shaft laser total station instrument-based three-dimensional coordinate measurement method

ActiveCN106546172ARemoval of Orthogonality RequirementsReduce difficultyUsing optical meansLaser rangingMeasuring instrument
The invention relates to a precision measuring instrument, in particular, a non-orthogonal shaft laser total station instrument-based three-dimensional coordinate measurement method. The objective of the invention is to realize the three-dimensional coordinate measurement of a space point and decrease the difficulty and cost of instrument design, processing and assembly. The method includes the following steps that: (1) two single-axis turntables or a two-axis pan/tilt holder and a laser ranging module are adopted to construct a non-orthogonal shaft laser total station instrument; (2) the two rotation platforms of the two single-axis turntables or the pan/tilt holder are named as a horizontal turntable and a vertical turntable respectively; (3) ranging information corresponding to a calibration point on a measurement axis is obtained and recorded; (4) a non-orthogonal shaft laser total station instrument measurement coordinate system O-XYZ is established; (5) a conversion relationship between a calibration device coordinate system and the non-orthogonal shaft laser total station measurement coordinate system is determined; (6) the space coordinates of calibration points on each axis and the normalized direction vectors of each axis are converted into the non-orthogonal shaft laser total station measurement coordinate system; and (7) the space coordinate measurement of a target point is achieved. The method of the present invention is mainly applied to design and manufacturing conditions.
Owner:TIANJIN UNIV

Imaging method and device for inducing surface thermal deformation effect based on laser array

The invention discloses an imaging method and an imaging device for inducing a surface thermal deformation effect based on a laser array. The method comprises the following steps of: dividing pump light into pump light beam groups which have equal light intensity and are distributed in an array mode at equal intervals, and irradiating the surface of a sample to be detected by using the pump light beam groups to induce the local surface deformation of the sample to be detected; dividing detection light into detection light beam groups which have equal light intensity and are distributed in an array mode at equal intervals, and irradiating the surface of the sample to be detected by using the detection light beam groups, wherein each detection light beam is correspondingly overlapped with one pump light beam; and ensuring that the detection light beam groups which are emergent from the sample to be detected finally enter a photoelectric detector, and acquiring a two-dimensional image about the surface characteristic of a material by measuring the change of the propagation characteristic of the detection light beams, which is caused by surface thermal deformation. Imaging speed can be greatly improved compared with that of the traditional point-by-point sample scanning method; and in addition, point-by-point scanning is not needed, so that moving parts can be avoided in a specific detection and imaging instrument design, the stability of an instrument is improved, cost is reduced, the instrument is further miniaturized, and the application field is broadened.
Owner:合肥利弗莫尔仪器科技有限公司
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