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87 results about "Single mass" patented technology

Uniaxle integrated inertia measurement device based on single mass-block

The present invention which relates to the micro-mechanism electric technology provides a single-shaft and integrated device for measuring the inertia based on the single quality block. And the present solves the problems of the prior single-shaft and integrated assembly for measuring the inertia that the structure is complex, the volume and quality are big, etc. The single-shaft and integrated device for measuring the inertia includes a quality block and a glass cover bottom. The quality block which is hang on the upper of the glass cover bottom through a supporting beam includes a quality chip and four supporting bodies that are fixed with the four sides of the quality chip through the elastic beam. A moveable comb for detecting is fixed on the external of the supporting body relative to the Y direction and a moveable comb for driving is fixed on the external of the supporting body relative to the X direction. A fixed comb for detecting and a fixed comb for driving are fixed on the glass cover bottom, and electrodes for forming the capacitance are fixed on the lower end surface and the glass cover bottom of the quality chip. The device in the present invention has advantages of a reasonable structure, an easy processing, a high reliability, a small volume, a strong ability of resisting the interference, a high precision, a high precision of measuring the paralleling and orthogonality of the vectors, etc.
Owner:ZHONGBEI UNIV

Capacitance single mass three-shaft acceleration transducer and preparation method

The invention relates to a capacitive triaxial acceleration transducer with a single mass block and a preparation method thereof. A mass block region and a comb structure region are formed on a substrate, wherein, the mass block region comprises a first conducting layer, a socle beam which is positioned on the first conducting layer and is in fulcrum connection with the substrate, and a first block and a second movable block which are respectively connected with the two sides of the socle beam; the movable blocks and the first conducting layer form a differential capacitor used for measuring the accelerated speed in the first direction; the comb structure region is formed on the same layer with the mass block region, which comprises a first group of comb structure which is formed on the outer side of the second movable block and is used for measuring the accelerated speed in the second direction, and a second group of comb structure which is symmetrically formed on the opposite two natural sides of any movable block and is used for measuring the accelerated speed in the third direction; and furtherer more, the gravity of a combined region formed by the mass block region and the comb structure region deviates from the socle beam; therefore, the triaxial acceleration transducer formed by adopting the single mass block can realize the function of measuring the vector acceleration.
Owner:MEMSENSING MICROSYST SUZHOU CHINA

Adhesive for alkali resistant acrylate glass fiber mesh cloth shaping, and preparation method thereof

The invention discloses an adhesive for alkali resistant acrylate glass fiber mesh cloth shaping, and a preparation method thereof, and belongs to the field of polymer adhesive preparation. The adhesive is prepared through the reaction of the following components, wherein the components comprise: a material selected from acrylic acid and an ester monomer thereof, or methacrylic acid and an ester monomer thereof; nano-silicon dioxide; a styrene monomer; an initiator; an emulsifier; a buffering agent; a molecular weight regulator; a pH value modulator; and deionized water. According to the adhesive, the nano-silicon dioxide is adopted as the core, a copolymer of the styrene monomer and the acrylic acid monomer is adopted as the shell layer, and the shell layer hard monomer is the acrylate copolymer emulsion with the significant core-shell structure, wherein the concentration of the shell layer hard monomer shows the gradient change. The glass fiber mesh cloth treated by the adhesive of the present invention has advantages of excellent positioning effect, strong adhesive force, bright mesh cloth, good elasticity, high alkali resistance, good water resistance, strong weathering resistance, no yellowing, and no after tack. The adhesive of the present invention is the single mass component glue, is easy to use, does not contain any organic solvents, and has advantages of aquosity and environmental protection.
Owner:BEIJING COMENS NEW MATERIALS

Method and device for fast detection of aerosol particle concentration and size distribution

The invention discloses a method and a device for fast detection of aerosol particle concentration and size distribution. The method comprises the following steps of: forming a gas flow containing aerosol particles; enabling the gas flow to pass through at least one corona area so that at least partial aerosol particles to be detected in the gas flow are negatively charged; before the actual field measurement, measuring the length L of the corona area, pipe diameter H and gas flow speed v0, searching or measuring the density d of the particles, conducting a calibration experiment for the aerosol particle gas flow having a determined diameter D, then performing an actual measurement and finally calculating the number n of the particles at each level according to the formula YN=22N-2kD2 (22n-2-21-n) nN, in which YN, k, D are known; multiplying the number n of the particles at each level by a single mass of the particles at each level, and then summing the products to obtain a concentration value of the total particles in the gas flow. By the method provided by the invention, the size distribution proportion and the concentration of the aerosol particles in the air or the pipe gas flow can be detected conveniently, sensitively and quickly.
Owner:河北合盛科技有限公司

Capacitive single-mass block full comb electrode sensor for triaxial acceleration and manufacturing method thereof

The invention discloses a capacitive single-mass block full comb electrode sensor for triaxial acceleration and a manufacturing method thereof, wherein the acceleration sensor uses single-mass block design, and x, y and z axis all use comb structures on the x y planes as induction acceleration electrodes. An inducing mechanism, which is produced by performing deep reactive ion etching on severelydoped monocrystalline silicon, is composed of a mass block, a spring mechanism and a comb structure. The spring mechanism comprises four groups of U-shaped springs and beam structures, which are symmetrically distributed; two groups of x axis comb mechanisms are symmetrically distributed in the x y plane along the x axis, taking the mass block as the centre; two groups of y axis comb mechanisms are symmetrically distributed in the x y plane along the y axis, taking the mass block as the centre; four groups of z comb mechanisms are symmetrically distributed in the x y plane along the 45 degrees and the 135 degrees lines taking the mass block as the centre. Triaxial acceleration measuring signal outputs do not interfere with each other. The invention achieves triaxial acceleration measurement with a single mass block and a full comb structure electrode.
Owner:孙博华

Three-machine-driving double-mass-body subresonance self-synchronizing probability constant thickness screen and parameter determining method

The invention discloses a three-machine-driving double-mass-body subresonance self-synchronizing probability constant thickness screen which is mainly applied to industrial and mining enterprises. Double mass bodies of the three-machine-driving double-mass-body subresonance self-synchronizing probability constant thickness screen are of a novel structure, one mass body drives the other mass body, so that a sensitive subresonance system is formed, and the overall mechanical performance is affected by variation of loading capacity. Compared with a single-mass-body system, a double-mass-body system can achieve the same effect by smaller power. Compared with a traditional single-stage system and a double-stage system, the driving frequency is improved, screening is more complete, and the working efficiency is further improved. Three different coupling vibration exciters have the same rotating direction, so that self-synchronous driving is achieved, and energy saving is achieved. Through application of a probability constant thickness screen theory, probability quick layering, screen blockage preventing and constant thickness high-efficiency screening of materials on a machine body are achieved, the screening efficiency and the yield are improved, and large-scale screening machines are achieved. Three-machine self-synchronizing driving is adopted to improve the uniform distribution of exciting force on a screening machine.
Owner:NORTHEASTERN UNIV

Single-mass-block three-axis MEMS accelerometer with three frame structures

InactiveCN103941041ASolve the problem of excessive coupling between shaftsResolve SensitivityAcceleration measurement using interia forcesAccelerometerFixed frame
The invention discloses a single-mass-block three-axis MEMS accelerometer with three frame structures. The single-mass-block three-axis MEMS accelerometer with the three frame structures comprises the three frame structures, namely a suspension inner frame, a suspension outer frame and a fixed frame, wherein the fixed frame is in sealed connection with a base through a bonding method, and the three frame structures are arranged symmetrically in a rectangular shape or an annular shape. The single-mass-block three-axis MEMS accelerometer with the three frame structures further comprises elastic sensing beams arranged in the X-axis direction, the Y-axis direction and the Z-axis direction respectively, wherein a varistor on the sensing beam in the X-axis direction is arranged on a bridge arm of a bridge in a series-connection mode, the variation of the varistor on the sensing beam in the X-axis direction can reduce coupling with the Y axis and the Z axis, the variation of a varistor on the sensing beam in the Y-axis direction can reduce coupling with the X axis and the Z axis, and the variation of a varistor on the sensing beam in the Z-axis direction can reduce coupling with the X axis and the Y axis. The single-mass-block three-axis MEMS accelerometer with the three frame structures is ingenious in design, is high in product yield, and resolves the problems that a single-mass-block three-axis MEMS accelerometer in the prior art is too large in inter-axis coupling, low in sensitivity and low measurement accuracy.
Owner:RX MICROSYST WUHAN CHINA

Method for automatically tracking quality of single continuous casting blank

InactiveCN107321947AAccurate trackingRealize quality traceabilityQuality of serviceProcess quality
The invention relates to a method for automatically tracking the quality of a single continuous casting slab, which belongs to the field of converter steelmaking. The technical solution is: by collecting the spraying time of the billet automatic number spraying machine, based on the constant casting speed of the casting machine, combined with the fixed length information and the running speed of the billet roller table, the liquid level of the cast billet in the crystallizer is realized. The automatic tracking of fluctuation, casting speed and corresponding tundish temperature realizes the traceability of the production process of a single billet. The beneficial effects of the present invention are: dynamic tracking of each strand of slab through model calculation, accurate tracking of quality information in the production process of slab, and further realization of quality control of the whole process of single slab production, and realization of process quality control of a single slab. Traceability provides basic data support for continuous casting slab defect process quality diagnosis, online quality prediction, batch and process quality evaluation, online quality early warning, online quality judgment, process quality service, etc. It is suitable for promotion and application in various iron and steel enterprises.
Owner:HEBEI IRON AND STEEL

Aluminum alloy composite foil and preparation method thereof

The invention relates to aluminum alloy composite foil and a preparation method thereof. The aluminum alloy composite foil is composed of a core material and two layers of skin materials located on the upper and lower faces of the core material. The core material comprises the components of, by mass, no more than 0.4% of Fe, no more than 0.7% of Si, no more than 0.1% of Cu, 1.1%-1.6% of Mn, no more than 0.03% of Mg, 2.0%-2.5% of Zn, 0.05%-0.15% of Cr, 0.02%-0.08% of Ti, other elements and the balance Al, wherein the single mass percentage of the other elements is less than 0.05%, and the totalmass percentage of the other elements is less than 0.15%. Each skin material comprises the components of, by mass, no more than 0.3% of Fe, 7.5%-9.5% of Si, 0.25%-0.45% of Cu, no more than 0.1% of Mn, no more than 0.03% of Mg, no more than 0.1% of Zn, no more than 0.05% of Cr, no more than 0.05% of Ti, other elements and the balance Al, wherein the single mass percentage of the other elements isless than 0.05%, and the total mass percentage of the other elements is less than 0.15%. The prepared aluminum alloy foil has good mechanical performance and corrosion resistant performance, after soldering, the grain size of the core material is large, and the corrosion depth is small.
Owner:YINBANG CLAD MATERIAL

Resonant-type double-shaft micro mechanical wheel-type gyro

The invention relates to a resonant-type double-shaft micro mechanical wheel-type gyro. The tesonant-type double-shaft micro mechanical wheel-type gyro comprises a substrate, an anchor point, a centershaft, a driving folded beam, an internal ring framework, an external ring framework, a detection X shaft torsion beam, a detection Y shaft torsion beam, a detection quality block, a detection capacitor, a driving comb capacitor, and a driving feedback comb capacitor; the internal ring framework is connected with the center shaft through the driving folded beam; the internal ring framework is connected with the external ring framework through the detection X shaft torsion beam; the external ring framework is connected with the detection quality block through the detection Y shaft torsion beam; the internal side and the external side of the internal ring framework are connected with a movable electrode of the driving feedback comb capacitor and a movable electrode of the driving comb capacitor respectively; fixed electrodes of the driving feedback comb capacitor and the driving comb capacitor are connected with the substrate; a movable electrode of the detection capacitor is connectedwith the detection quality block, and a fixed electrode is connected with the substrate. The technology process is simple; single mass block double gyro production can be realized; and large batch production can be realized.
Owner:PEKING UNIV

Multi-beam type single-mass block in-plane biaxial acceleration sensor chip and preparation method thereof

The present invention discloses a multi-beam type single-mass block in-plane biaxial acceleration sensor chip and a preparation method thereof. The sensor chip adopts an SOI silicon slice to manufacture, and comprises a chip outer frame, a master supporting beam, a connecting beam, a slave supporting beam, sensitive piezoresistive micro-beams, a mass block, metal lead wires and pads. One end of the master supporting beam is fixed to the chip outer frame, and the other end is connected with the connecting beam. The other end of the connecting beam is connected with the slave supporting beam, and the other end of the slave supporting beam is connected with the mass block. The eight sensitive piezoresistive micro-beams in the chip are located in the gaps between the chip outer frame and the connecting beam, every two sensitive piezoresistive micro-beams are distributed at the two sides of the master supporting beam symmetrically, one ends of the sensitive piezoresistive micro-beams are fixed to the chip outer frame, and the other ends are connected with the connecting beam. The piezoresistors on the eight sensitive piezoresistive micro-beams are connected via the metal lead wires andthe sixteen pads and form a Wheastone full-bridge circuit. The sensor chip of the present invention can realize the measurement of the acceleration less than 100g, has an inherent frequency more than40 kHz, and satisfies the high-frequency low-g value acceleration dynamic measurement requirement.
Owner:XI AN JIAOTONG UNIV

Dynamic balancing system and centrifugal machine with dynamic balancing system

The invention discloses a dynamic balancing system and a centrifugal machine with the dynamic balancing system. During balancing, two mass blocks are moved, unbalanced force can be balanced and is twotimes the manner of moving a single mass block, and the balancing range of balanced force is widened; and meanwhile, when the unbalanced force of the same magnitude is balanced, the movement distanceof balancing weights is halved, the motion time is greatly reduced, and the balancing efficiency is improved. The dynamic balancing system can achieve fast responding by adopting hydraulic drive andhydraulic locks, the dynamic balancing system is reliably locked at a preset position, and the balancing system is effective and reliable; two of four hydraulic cylinders are one set, and the two hydraulic cylinders in one set are controlled by proportional valves to act synchronously so as to guarantee that the balancing weights can smoothly move along guide rails; and piston rods of the hydraulic cylinders in different sets and on the same axis are fixedly connected into a whole, synchronous action of the two sets of hydraulic cylinders is guaranteed, the four hydraulic cylinders are used for cooperatively and synchronously driving the balancing weights, and high control precision can be achieved more easily.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS

Methods for isolation and analysis of sialylated and phosphorylated peptides

Changes in sialylation of cell surface or plasma proteins are often associated with various cancers and other disease conditions Provided are methods of detecting biomarkers of conditions associated with a change of sialylation status. Sialylated peptides are first isolated from biological and other samples by loading onto titanium dioxide (TiO2) or zirconium dioxide (ZrO2) stationary phase under acidic conditions in a solution comprising at least 20% organic phase and at least about 6.5 mM of substituted aromatic carboxylic acid, or, alternatively, at least about 1 mM short chain, non-aromatic, hydroxylated carboxylic acid. Sialic acid containing proteins can then be eluted from loaded stationary phase material by exposure to an alkaline solution having pH of 9.0 or greater, preferably at least 10.5. Sialylated peptides isolated by the methods provided can then be analysed by mass spectrometry to identify patterns of sialylation across a sialiome (the entire complement of sialic acid containing peptides in a biological sample) and/or to identify proteins in a sample that are sialylated or that show changes in sialylation status between two or more different samples. In preferred embodiments, sialylated peptides from control and patient samples can be differentially isotopically labelled and compared in a single mass sprectrometry experiment. Also provided are specific biomarkers of bladder cancer. The methods for isolating and analysing sialylated proteins can also by applied to phosphorylated proteins.
Owner:SYDDANSK UNIV
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