32results about How to "High structural symmetry" patented technology

A chip integrated waveguide feeding print antenna is composed by a chip with its two metal sides being transfixed with metal through holes in array. The two metal sides are in axial symmetry. There is an intergrading section to one side of the waveguide centerline on two surface of the chip linking with transmission line. To the outer end of the intergrading section links a vibrator antenna. To the opposite side of the intergrading section on the waveguide links a micro-strip intergrading commutator linking with micro-strip transmission line.

A chip integrated waveguide feeding print antenna is composed by a chip with its two metal sides being transfixed with metal through holes in array. The two metal sides are in axial symmetry. There is an intergrading section to one side of the waveguide centerline on two surface of the chip linking with transmission line. To the outer end of the intergrading section links a vibrator antenna. To the opposite side of the intergrading section on the waveguide links a micro-strip intergrading commutator linking with micro-strip transmission line.

The invention discloses a wideband rotating magnetic characteristic measuring system and method based on a flexible excitation coil. The measuring system comprises a detection device, a digital signal processing unit, a power amplifier, and a differential amplification circuit. The digital signal processing unit is connected with the power amplifier and the differential amplification circuit. The detection device is connected with the power amplifier and the differential amplification circuit. The detection device comprises a three-stage frustum-shaped excitation winding, a sample holder, a horizontal structure magnetic ring, a center pillar, a buckle, a corner pillar and a base. The excitation winding of the measuring system is designed as a multi-stage frustum-shaped structure to realize a wideband magnetic characteristic test. The measuring method comprises first giving an excitation signal with a low frequency, gradually increasing the frequency of the excitation signal until the sample is saturated; replacing the excitation winding connection mode after the sample is completely measured in the excitation winding connection method, and repeating the measurement process until the highest detection band.

The invention discloses an anti-displacement cold stamping drawing mold, and aims to provide a drawing mold capable of effectively and quickly positioning a drawing plate, effectively protecting the plate and guaranteeing the finished product quality. The anti-displacement cold stamping drawing mold comprises a concave mold positioned on the upper side, and a convex mold positioned on the lower side; the concave mold includes a molding table; a plate cavity is formed in the convex mold; multiple pre-limiting parts are arranged on the concave mold; the pre-limiting parts include pre-limiting cylinders and positioning frames; the positioning frames are provided with pressing bars rotationally connected with the positioning frames through middle parts; transverse slide holes are formed in the pressing bars; rotating shafts are arranged in the transverse slide holes; piston rods of the pre-limiting cylinders are rotationally connected with the rotating shafts; and a pre-limiting anti-interference cavity is formed in the concave mold. The anti-displacement cold stamping drawing mold has the following beneficial effects: the anti-displacement cold stamping drawing mold can provide effective clamping and fixation to guarantee smooth actuation of previous drawing process, has an automatic ejecting structure for automatically realizing ejection after mold separation, and can continuously fix the plate after failure of a pre-positioning structure to realize automatic deviation when the mold is to be closed, so that the smoothness of mold closing process is maintained.

The invention relates to a halogen-free thermosetting resin composition and a prepreg and a printed circuit laminate employing the halogen-free thermosetting resin composition. An organic condensate of the halogen-free thermosetting resin composition comprises the ingredients in parts by weight (based on 100 parts): (A) 5-50 parts of cyanate resin; (B) 5-40 parts of polyphenylether resin; (C) 5-30 parts of phosphoric bisphenol polymer; (D) 30-60 parts of halogen-free epoxy resin. The prepreg and the printed circuit laminate made from the halogen-free thermosetting resin composition, provided by the invention, have high glass transition temperature, excellent dielectric properties, low water absorption rate, high heat resistance, high peel strength, excellent humidity resistance and good process processability, can achieve no halogen and flame retardance and reaches UL94 V-0.

The invention provides a halogen-free thermosetting resin composition, a prepreg comprising the same, a laminated board and a printed circuit board. The halogen-free thermosetting resin composition comprises the following substances serving as necessary components, in 100 parts of organic solid matters by weight: (A) 35-65 parts of halogen-free epoxy resin; (B) 10-35 parts of poly-phosphonate; (C) 10-30 parts of cyanate ester. The halogen-free thermosetting resin composition, the prepreg comprising the same, the laminated board and the printed circuit board have high glass transition temperature, excellent dielectric property, high peeling strength, high heat resistance, low water absorption and good process machinability, can realize halogen-free flame resistance and reach UL94 V-0.

The invention provides a micro inertial switch with a Z-shaped beam structure. The micro inertial switch has a micro inertial switch chip which is processed according to MEMS technology and has a low g-value. The micro inertial switch is mainly composed of a glass cover plate, a mass block and spring beam silicon structure, a glass substrate, etc. The spring beam structure is a symmetrical Z-shaped beam. In operation, on the condition an overload function exists in a sensitive direction, the Z-shaped beam deforms elastically, and the mass block moves to contact bump points in the groove of the glass substrate. On the condition that overload reaches a certain threshold, a metal electrode on the mass block contacts with two random adjacent contact pump points in the groove of the substrate, so that the micro inertial switch is on. The micro inertial switch with the Z-shaped beam structure has advantages of high transverse overload resistance, high productivity, high reliability, etc. The micro inertial switch with the Z-shaped beam structure is suitable for the fields such as automobile and industrial production safety control and aeronautics and astronautics.

The invention discloses a nanocrystalline high-frequency magnetic characteristic detection system considering stress. The system comprises a nanocrystalline high-frequency magnetic characteristic detection device considering stress, a power amplifier, a differential amplifying circuit and a digital signal processing unit; the nanocrystalline high-frequency magnetic characteristic detection devicecomprises a magnetic path composed of two U-shaped magnetic cores which are in insertion connection with each other in a 90-degree staggered manner; a nanocrystalline strip is cut in an interdigital manner, so that the magnetic core can be formed; four square excitation windings are fixed on the top ends of the magnetic cores; the lower magnetic core is fixed on a bracket through a clamping buckle; a sample to be tested is arranged between the two magnetic cores; hydraulic clamps symmetrically distributed are applied to tow sides of the sample respectively; stress is applied to the sample; theupper magnetic core is fixed on the bracket through a height adjustable clamping buckle; and the detection system can be adaptive to samples of different sizes through adjusting the height of the magnetic cores. Compared with the prior art, the system has the advantages of single structure, clear and reasonable magnetic path and simplicity in the manufacture and processing of the magnetic cores.

The invention discloses a sun-flower-shaped annular truss deployable antenna mechanism based on shear elements. The mechanism is in a sun flower shape in the whole, and includes four N-type shear elements. The shear element is composed of four internal node disks, four external node disks, two intermediate node disks, four connecting rods, four intermediate shear bars and four external shear barsconnected by rotating pairs. The shear elements are arranged into an array, and adjacent shear elements are connected by sharing two inner node disks, two outer node disks and two intermediate shear bars, and the plurality of shear element are arranged into an array to jointly form a sun-flower-shaped annular truss mechanism. As the overall mechanism of the invention has high structural symmetry,the annular truss-type space deployable mechanism with different dimensions can be formed by changing the number of the shear units and the length of the rods in the overall mechanism, and can be better applied to the large-aperture satellite antenna.

The invention uses ethylenediamine as cationic donor, uses nitrophenols which have different numbers of nitro groups and are substituted in different sites, as anionic donor, uses one or more of water, ethanol, methanol, propanol, isopropanol and acetone as reaction medium and utilizes the acid-base reaction to synthesize a series of ethylenediamine-dinitrophenol type ionic liquids. The synthesized ionic liquids have higher structural symmetry, higher thermal stability and good compatibility to metals, high polymer materials and other inorganic materials, contain more coordination centers and belong to a new type of materials with broad application prospect.

The invention discloses a high-heat-stability locking joint. The high-heat-stability locking joint comprises a first connecting piece 1, a second connecting piece 2, fixed-pressure locking devices 3,a rotating shaft module 4 and low-impact release devices 5; the first connecting piece 1 and the second connecting piece 2 are fixedly connected with rod pieces, and form a rotating pair through a rotating shaft 42 and a bearing 43; the hinging between the first connecting piece 1 and the second connecting piece 2 is realized; and the fixed-pressure locking devices 3 with constant pressing force are arranged at two ends of the rotating shaft 42, and can realize locking through the low-impact release devices 5. Through reasonable layout of the fixed-pressure locking devices 3, the rotating shaft module 4 and the low-impact release devices 5, the whole joint is symmetrical relative to two planes passing through the axles of the rod pieces, so that the problem of weak symmetry of a traditional locking joint is overcome; through deformation of flexible supports 36, the axial gapless locking is realized, the locking gap of the traditional locking joint is eliminated, and the locking rigidity is improved; and through arrangement of the fixed-pressure locking devices 3 and the low-impact release devices 5, the same pretightening force at two ends of the rotating shaft 42 is guaranteed, and the problem of weak heat stability of the traditional locking joint is solved.

The invention relates to a special amino modified perfluorosulfonic membrane for a fuel cell, and a preparation method, belongs to the technical field of a fuel cell diaphragm and aims to solve the technical problems. The preparation method comprises the steps of performing sulfonation of tetrafluoroethylene, fluorination of 3-amino propylene, a condensation reaction, a condensation polymerizationand acidizing and the like; by virtue of combination of N atoms and dual-short sulfonic acid group branch chains, grafted polymerization on the main chain is realized, so that the sulfonic acid groupcontent and structural symmetry are improved; therefore, the membrane material structure in the swelling process is more stable, and ion clusters can be formed in the membrane material more easily, thereby improving proton adsorption and mobility capabilities; the method is simple in process and high in feasibility; and the prepared amino modified perfluorosulfonic membrane is high in structuralsymmetry, high in regularity, easy to crystallize, relatively high in membrane material mechanical strength, high in proton conductivity and suitable for a high-temperature and low-moisture environment.

The invention discloses a phosphorus-containing compound. The phosphorus-containing compound can be used as a flame retardant, can be matched with other components to prepare a resin composition for manufacturing articles such as prepregs, resin films, resin films adhered by copper foils, laminated boards or printed circuit boards and the like, so that improvement is made in the aspects of glass transition temperature, thermal expansion coefficient, heat resistance, flame retardance, dielectric constant and dielectric loss and the like. In addition, the invention also discloses a preparation method of the phosphorus-containing compound and the resin composition containing the compound.

The invention discloses a production process of a hydrophobic polyimide film, which belongs to the technical field of modified polyimide film preparation. The production process of the hydrophobic polyimide film comprises the following steps of preparing a diamine monomer A, reacting a diamine monomer A with a dianhydride monomer to prepare a polyamic acid solution, and performing imidization to obtain a polyimide film. A diamine monomer A is prepared, so that the prepared polyimide has a C-F bond and a siloxane chain with excellent hydrophobic performance, the diamine monomer A is provided with an ester group in the middle, the structural symmetry degree of the diamine monomer A is relatively high, a polymer can locally form microcrystals, and due to the existence of the local microcrystals, the diffusion of water molecules in the polymer is hindered; when water molecules encounter local microcrystals of a macromolecular chain, macromolecular chain segments in a crystalline structure are tightly piled, so that the water molecules cannot permeate and diffuse, the advancing of the water molecules is blocked finally, and the hydrophobic performance of the film is further improved.

The invention provides a high-performance piezoelectric accelerometer with a ring beam structure. The high-performance piezoelectric accelerometer comprises the ring beam structure, piezoelectric elements, an upper outer shell and a lower outer shell, wherein the ring beam structure comprises an annular beam, a plurality of elastic beam arms and a central base plate which are integrally arranged;the central base plate is arranged in the center of the annular beam; the plurality of elastic beam arms are uniformly arranged in the annular beam; the central base plate is a regular N-polygon baseplate; each side surface of the central base plate is matched with one elastic beam arm; the other end of each elastic beam is fixedly connected with the inner wall of the annular beam, the upper surface and the lower surface of the center base plate are matched with central mass blocks in the same shape respectively, piezoelectric elements are arranged on the upper surface and the lower surface of each elastic beam arm, a cavity for accommodating the ring beam structure is defined by the upper outer shell and the lower outer shell, and the upper outer shell and the lower outer shell clamp theannular beam. By utilizing the bending mode of the beam, the high-performance piezoelectric accelerometer enhances the sensitivity, increases the bandwidth without losing performance due to the highsymmetry, and further improves the torsion resistance and the anti-jamming capability.

The invention relates to the field of grinding media, and aims at solving the problems that raw material powder used by an existing ceramic grinding body is poor in dispersity and easy to agglomerate, so that the internal density of the ceramic grinding body obtained through final sintering is not uniform enough, the hardness of the ceramic grinding body is poor, abrasion is large, and the grinding cost is high. According to the composite grinding medium for the grinding machine and the preparation method of the composite grinding medium, the grinding medium prepared by taking modified silicon carbide as a main raw material is good in mechanical property and high in wear resistance, so that the service life of the grinding medium is prolonged, and the grinding cost can be reduced while the grinding effect can be guaranteed; the modified silicon carbide has better performance and has a forward promotion effect on the performance of the grinding medium, and the dispersity of the silicon carbide can be modified by using the ball milling accelerant, so that the phenomenon that the internal connection of the grinding medium is not tight enough due to agglomeration of the modified silicon carbide is avoided, and the service life of the grinding medium is prolonged. And the mechanical property and wear resistance of the grinding medium are further improved.

The invention discloses an omni-directional dynamic heat source pendulum type double-shaft micro-mechanical accelerometer and a processing method thereof, the double-shaft micro-mechanical accelerometer comprises a substrate layer, a sensitive layer and a cover plate, the sensitive layer comprises a middle heating cavity and a middle detection cavity, and the upper surface of the sensitive layer is provided with an omni-directional dynamic heat source pendulum heater and two pairs of thermistors; the omni-directional dynamic heat source pendulum heater is suspended at the central position of the sensitive layer through six completely symmetrical semicircular supporting beams; the heater is electrified in a constant current mode; and a groove is etched on the cover plate and is hermetically connected with the upper surface of the sensitive layer. The omni-directional dynamic heat source pendulum type double-shaft micro-mechanical accelerometer can realize biaxial acceleration measurement, has the characteristics of high sensitivity, high response speed, small structural stress, small size, light weight, easiness in intelligentization and integration and the like, and conforms to the development direction of the sensor towards microminiaturization, integration and intelligence. Meanwhile, the omni-directional dynamic heat source pendulum type double-shaft micro-mechanical accelerometer has the advantages of being very simple in structure and processing technology, very low in cost, high in reliability, excellent in vibration resistance and impact resistance and the like.

The invention discloses a high-heat-stability locking joint. The high-heat-stability locking joint comprises a first connecting piece 1, a second connecting piece 2, fixed-pressure locking devices 3,a rotating shaft module 4 and low-impact release devices 5; the first connecting piece 1 and the second connecting piece 2 are fixedly connected with rod pieces, and form a rotating pair through a rotating shaft 42 and a bearing 43; the hinging between the first connecting piece 1 and the second connecting piece 2 is realized; and the fixed-pressure locking devices 3 with constant pressing force are arranged at two ends of the rotating shaft 42, and can realize locking through the low-impact release devices 5. Through reasonable layout of the fixed-pressure locking devices 3, the rotating shaft module 4 and the low-impact release devices 5, the whole joint is symmetrical relative to two planes passing through the axles of the rod pieces, so that the problem of weak symmetry of a traditional locking joint is overcome; through deformation of flexible supports 36, the axial gapless locking is realized, the locking gap of the traditional locking joint is eliminated, and the locking rigidity is improved; and through arrangement of the fixed-pressure locking devices 3 and the low-impact release devices 5, the same pretightening force at two ends of the rotating shaft 42 is guaranteed, and the problem of weak heat stability of the traditional locking joint is solved.

The invention relates to a peripheral truss deployable antenna mechanism based on V-shaped shear type unit bodies. The peripheral truss deployable antenna mechanism comprises N V-shaped shear type unit bodies, wherein each V-shaped shear type unit body is formed by rotatably connecting four internal disc chucks, four external disc chucks, two intermediate disc chuck, an internal shear type connecting rod, two folding rods, two intermediate shear type connecting rods and two external shear type connecting rods; the N V-shaped shear type unit bodies are arranged in an array, the two adjacent V-shaped shear type unit bodies are connected with each other through sharing two internal disc chucks, two external disc chucks and one intermediate shear type connecting rod, and the N V-shaped shear type unit bodies form a closed deployable antenna mechanism. The overall mechanism has high structural symmetry, can form the peripheral truss deployable antenna mechanisms of different scales throughchanging the number of the V-shaped shear type unit bodies in the overall mechanism and the length of the rod members in the V-shaped shear type unit bodies, and can be applied to large-diameter satellite-borne antennas.

The invention relates to a halogen-free thermosetting resin composition, a prepreg prepared from the halogen-free thermosetting resin composition and a laminated plate for a printed circuit. The halogen-free thermosetting resin composition comprises, by weight, 30-60 parts of halogen-free epoxy resin, 5-30 parts of phosphorus-containing bisphenol as a first curing agent, 5-30 parts of dicyclopentadiene-type phenolic aldehyde as a second curing agent and a phosphorus-containing fire retardant. The prepreg prepared from the halogen-free thermosetting resin composition and the laminated plate for a printed circuit have high glass-transition temperatures, excellent dielectric properties, low water absorption rates, high heat resistance and good processability, realizes halogen-free flame retardation and has a UL94V-0 level.

The invention provides a high-performance piezoelectric accelerometer with a ring beam structure, which includes a ring beam structure, a piezoelectric element, an upper casing and a lower casing. The ring beam structure includes an integrally arranged ring beam, a plurality of elastic beam arms and a central substrate. The central base plate is arranged at the center of the ring beam, and a plurality of elastic beam arms are evenly arranged in the ring beam. The central base plate is a regular N-gon base plate, and an elastic beam arm is matched on each side of the central base plate, and each elastic beam The other end of the elastic beam is fixedly connected with the inner wall of the ring beam, and the upper and lower surfaces of the central base plate are equipped with a central mass block of the same shape. Piezoelectric elements are arranged on the upper and lower surfaces of each elastic beam arm, and the upper shell and the lower shell are surrounded by an accommodating ring beam. The structural cavity, the upper shell and the lower shell clamp the ring beam set. The invention utilizes the bending mode of the beam to improve the sensitivity; the high symmetry not only improves the bandwidth without loss of performance, but also improves the anti-torsion force and anti-interference ability.

The invention discloses a wideband rotating magnetic characteristic measuring system and method based on a flexible excitation coil. The measuring system comprises a detection device, a digital signal processing unit, a power amplifier, and a differential amplification circuit. The digital signal processing unit is connected with the power amplifier and the differential amplification circuit. The detection device is connected with the power amplifier and the differential amplification circuit. The detection device comprises a three-stage frustum-shaped excitation winding, a sample holder, a horizontal structure magnetic ring, a center pillar, a buckle, a corner pillar and a base. The excitation winding of the measuring system is designed as a multi-stage frustum-shaped structure to realize a wideband magnetic characteristic test. The measuring method comprises first giving an excitation signal with a low frequency, gradually increasing the frequency of the excitation signal until the sample is saturated; replacing the excitation winding connection mode after the sample is completely measured in the excitation winding connection method, and repeating the measurement process until the highest detection band.

The invention relates to an eddy current loss measuring system and method of a permanent magnet. The system comprises a detector, a power amplifier, a differential amplification circuit and a digitalsignal processing unit; the detector comprises two U-shaped magnetic cores facing each other, excitation windings wound around magnetic poles of the U-shaped magnetic cores respectively, a magnetic core fixing support for fixing the magnetic cores, a position fixed support, a bottom support platform and a sample fixing support; the upper portion of the magnetic core fixing support is provided withgrooves which match the shapes of the magnetic cores, and the magnetic cores can be just fixed in the grooves respectively after winding of the excitation windings; the lower portion of the magneticcore fixing support is provided with a sliding groove; the sampling fixing support is fixed on the bottom support platform between the two U-shaped magnetic cores; and the excitation windings are connected in series and then connected to the digital signal processing unit via the power amplifier. Thus, the practical operation condition of the magnetic field of the motor can be simulated, the totalloss condition of the permanent magnet is reflected accurately, and the method is highly repeatable.

The invention relates to a halogen-free thermosetting resin composition, a prepreg using the composition, and a laminated plate for a printed circuit. The halogen-free thermosetting resin composition is characterized in that 100 parts by weight of organic solids comprise, by weight, 16-42 parts of halogen-free epoxy resin, 1.5-4.8 parts of a compound containing a hydrobenzooxazine ring, 10-28 parts of a phosphorus-containing bisphenol curing agent with the weight average molecular weight of 1000-6500, and 30-70 parts of silica. The prepreg made of the halogen-free thermosetting resin composition and the laminated plate for the printed circuit have the advantages of high glass transition temperature, excellent dielectric properties, low water absorption rate, high heat resistance, good technologic processability, realization of no halogen and flame retardation, and reaching of UL94 V-0.

The invention discloses a mass balance processing device for a hemispherical resonator and a working method. The mass balance processing device comprises a shaft sleeve and a vessel; one end of the shaft sleeve is connected with a shaft handle end of a hemispherical resonator to be subjected to balance processing, and the other end of the shaft sleeve is connected with a rotation shaft; the otherend, connected with the shaft sleeve, of the rotation shaft is connected with a rotating shaft of a rotation motor; the shaft handle end of the hemispherical resonator to be subjected to balance processing, the shaft sleeve, the axis of the rotation shaft and the axis of the rotating shaft of the rotation motor are located on the same extension line; a lifting structure capable of driving the whole mass balance processing device to ascend or descend is arranged on the rotation shaft; and chemical corrosive liquid capable of corroding the hemispherical resonator to be subjected to balance treatment is placed in the vessel. According to the technical schemes of the invention, the geometric deviation of the hemispherical resonator can be corrected, so that the nonuniformity of mass distribution of the hemispherical resonator is reduced.

The invention belongs to the technical field of aerospace equipment and provides a six-rod mechanism, an extensible module, an extension arm and a plane extension truss. The six-rod mechanism can movealong a determined route only through a driving part, and thus the degree of freedom of the six-rod mechanism is one. Various overall mechanisms composed of the six-rod mechanism can extend or retract in two directions, and coupling is achieved on movement in the two directions. A certain functional relationship is achieved, no voluntary movement exists, and thus the degree of freedom of the overall mechanisms composed of the six-rod mechanism is also one. Thus, use of constraint parts is reduced, the quality of the overall mechanisms is improved, and the retracted size is decreased; and meanwhile, the rigidity of the overall mechanisms is high because of the over-constraint characteristics of a spatial mechanism. The overall mechanisms further have pretty good structural symmetry, extension in the two directions in a plane is easy to achieve, and thus the six-rod mechanism can be applied to a spatial extension arm, a solar battery array truss and a large satellite plane extension antenna supporting truss of the aerospace field.

The invention discloses an anti-displacement cold stamping drawing mold, and aims to provide a drawing mold capable of effectively and quickly positioning a drawing plate, effectively protecting the plate and guaranteeing the finished product quality. The anti-displacement cold stamping drawing mold comprises a concave mold positioned on the upper side, and a convex mold positioned on the lower side; the concave mold includes a molding table; a plate cavity is formed in the convex mold; multiple pre-limiting parts are arranged on the concave mold; the pre-limiting parts include pre-limiting cylinders and positioning frames; the positioning frames are provided with pressing bars rotationally connected with the positioning frames through middle parts; transverse slide holes are formed in the pressing bars; rotating shafts are arranged in the transverse slide holes; piston rods of the pre-limiting cylinders are rotationally connected with the rotating shafts; and a pre-limiting anti-interference cavity is formed in the concave mold. The anti-displacement cold stamping drawing mold has the following beneficial effects: the anti-displacement cold stamping drawing mold can provide effective clamping and fixation to guarantee smooth actuation of previous drawing process, has an automatic ejecting structure for automatically realizing ejection after mold separation, and can continuously fix the plate after failure of a pre-positioning structure to realize automatic deviation when the mold is to be closed, so that the smoothness of mold closing process is maintained.

The invention discloses a peripheral truss deployable antenna mechanism based on tapered shear fork mechanism units. The peripheral truss deployable antenna mechanism comprises N tapered shear fork mechanism units, wherein each tapered shear fork mechanism unit is formed by connecting four internal node disc chucks, four external node disc chucks, two intermediate node disc chuck, four internal shear fork rods, four intermediate shear fork rods and four connecting rods by means of revolving pairs; the plurality of tapered shear fork mechanism units are arranged in an array, and the adjacent tapered shear fork mechanism units are connected with each other through sharing two internal node disc chucks, two external node disc chucks and two intermediate shear fork rods, so as to form the peripheral truss deployable antenna mechanism based on the tapered shear fork mechanism units. The overall mechanism has high structural symmetry, can form the peripheral truss deployable antenna mechanisms of different scales through changing the number of the tapered shear fork mechanism units in the overall mechanism and the length of the rod members in the tapered shear fork mechanism units, and can be applied to large-diameter satellite-borne antennas.

The invention discloses a hemispherical resonator mass balance processing device and a working method. The mass balance processing device includes a shaft sleeve and a vessel, and one end of the shaft sleeve is used to connect with the handle end of the hemispherical resonator to be balanced. The other end of the bushing is connected to a rotating shaft, and the other end of the rotating shaft connected to the bushing is connected to the rotating shaft of the rotating motor. The handle end of the hemispherical resonator to be balanced, the bushing, and the The axes of the rotating shaft and the rotating shaft of the rotating motor are all located on the same extension line, and a lifting structure that can drive the entire mass balance processing device to rise or fall is also provided on the rotating shaft. Chemical etchant for etching the hemispherical resonator to be balanced. The solution can correct the geometric deviation of the hemispherical resonator, thereby reducing the inhomogeneity of its mass distribution.