30results about How to "Novel processing technology" patented technology

The invention provides a piezoelectric driven and detected miniature hemispherical resonant gyroscope and a manufacturing method thereof. The gyroscope comprises a monocrystalline silicon base, a center-fixed supporting column, a miniature hemispherical resonator, a common electrode, eight film piezoelectrics and eight uniformly-distributed signal electrodes, wherein the monocrystalline silicon base and the miniature hemispherical resonator are connected through the center-fixed supporting column; the common electrode has the same shape as that of the miniature hemispherical resonator and is located between the miniature hemispherical resonator and the piezoelectrics; the piezoelectrics have the same shapes as those of the signal electrodes and are located between the common electrode and the signal electrodes. The miniature hemispherical resonator is excited to work by adopting a piezoelectric driven manner, and a drive mode and a detection mode are matched with each other. The gyroscope is manufactured by combining an MEMS (Micro-Electromechanical Systems) bulk silicon processing process and a surface silicon processing process. According to the piezoelectric driven and detected miniature hemispherical resonant gyroscope and the manufacturing method thereof, the miniature gyroscope is driven and detected by using the inverse piezoelectric effect and the piezoelectric effect, so that the gyroscope has the characteristics of high degree of integration, low power consumption, convenience in mass production, and the like.

The invention provides a double-hemisphere-structured miniature resonant gyroscope and a manufacturing method thereof. The gyroscope comprises a monocrystalline silicon base, sixteen uniformly-distributed electrodes, two symmetrical miniature hemispherical resonators and a center-fixed supporting column, wherein the upper and lower ends of the center-fixed supporting column are respectively connected with the two miniature hemispherical resonators, and eight electrodes are uniformly distributed around each miniature hemispherical resonator; the two miniature hemispherical resonators have the same central shaft, are independent of each other and do not affect each other. The two miniature hemispherical resonators are respectively excited to work by adopting an electrostatic driven manner, and a drive mode and a detection mode are respectively matched with each other. The gyroscope is manufactured by combining an MEMS (Micro-Electromechanical Systems) bulk silicon processing process and a surface silicon processing process. According to the double-hemisphere-structured miniature resonant gyroscope and the manufacturing method thereof, influence caused by factors, such as centrifugal force, centripetal force, common-mode noise, quadratic nonlinear terms and the like is reduced in a differential processing manner; performance indexes, such as high bandwidth, high resolution, high sensitivity, high dynamic range and the like, are simultaneously achieved on a single device.

The invention discloses a phosphorous slag aerated concrete. The concrete is characterized by consisting of a binding material, an exciting agent, an air entraining agent and water which are mixed, wherein the binding material consists of 60 to 100 weight percent of phosphorous slag and 0 to 40 weight percent of pulverized fuel ash; the exciting agent is water glass with modulus of 1.0 to 1.6; the water glass accounts for 5 to 8 weight percent of the binding material based on the weight of Na2O; the air entraining agent is aluminum powder or simple substance silicon; the using amount of the aluminum powder is 0.1 to 0.2 weight percent of the binding material; the using amount of the simple substance silicon is 0.05 to 0.1 weight percent of the binding material; and the weight ratio of theusing amount of the water to the using amount of the binding material is 0.28 to 0.32. The phosphorous slag aerated concrete product is prepared by taking the industrial waste slag such as the phosphorous slag and the like as the binding material and mixing the phosphorous slag, the exciting agent, the air entraining agent and the water. The phosphorous slag aerated concrete has the advantages that: the preparation process is simple without vapor-pressure process, so that the equipment investment can be greatly reduced; and the product is a sealed porous structure and has the characteristics of light weight, high strength, low thermal conductivity, good thermal insulation property and the like.

The invention provides a hemispheroid solid fluctuation micro-gyroscope and a manufacturing method of the hemispheroid solid fluctuation micro-gyroscope. The hemispheroid solid fluctuation micro-gyroscope comprises a monocrystalline silicon substrate, eight signal electrodes, eight shielding electrodes, a micro hemispheroid harmonic oscillator and a central fixing supporting column, wherein the micro hemispheroid harmonic oscillator is connected with the monocrystalline silicon substrate through the central fixing supporting column; the signal electrodes and the shielding electrodes are arranged on the upper surface of the monocrystalline silicon substrate and are alternately and uniformly distributed on the periphery of the micro hemispheroid harmonic oscillator; the distance from each signal electrode to the micro hemispheroid harmonic oscillator and the distance from each shielding electrode to the micro hemispheroid harmonic oscillator are equal. The microgyroscope is produced by integrating an MEMS bulk silicon processing technology and a surface silicon processing technology; large effective vibrator mass can be achieved, and the detection effect on a Coriolis effect can be enhanced; high operating mode vibration efficiency can be achieved, and the ambient noise and mechanical noise can be lowered; by adopting the shielding electrode, the crosstalk among the signal electrodes can be alleviated, and the influence of the stray capacitance in the detection process can be alleviated.

The invention provides an internally annular and externally discrete double-electrode distributed micro-gyroscope and a preparation method thereof. The internally annular and externally discrete double-electrode distributed micro-gyroscope comprises a monocrystalline silicon substrate, a central fixed support pillar, a minitype harmonic oscillator, external electrodes, an internal electrode and a glass substrate. The preparation is carried out through combining an MEMS (Micro Electro Mechanical Systems) bulk silicon processing technology and a surface silicon processing technology; the internally annular and externally discrete double-electrode distributed micro-gyroscope provided by the invention can provide different drive and detection methods and different working modes, can work in a system requiring complex control, and can utilize the internal electrode and the external electrodes to drive and detect respectively, so that a stray capacitance between a drive electrode and a detection electrode is reduced, and the detection accuracy is improved.

The invention provides a dual-electrode distribution type micro gyroscope with side separated electrodes and circular adjacent electrodes and a preparation method thereof. One end of a center fixed support column is connected with a monocrystalline silicon substrate, the other end of the center fixed support column is connected with a micro harmonic oscillator; side electrodes are arranged on the surface of the monocrystalline silicon substrate or a glass substrate; adjacent electrodes are arranged on the surface of the monocrystalline silicon substrate or the glass substrate; the monocrystalline silicon substrate and the glass substrate are bonded. The preparation of the dual-electrode distribution type micro gyroscope with side separated electrodes and circular adjacent electrodes is conducted by the combination of MEMS bulk silicon processing and surface silicon processing; the dual-electrode distribution type micro gyroscope with side separated electrodes and circular adjacent electrodes can provide different drive and detection modes and different work modes, can work in the system requiring a complex control; the adjacent electrode is used for driving and the side electrodes are used for detection, the parasitic capacitance between a driving electrode and a detecting electrode is reduced, and the detection accuracy is improved.

The invention provides an upper-discrete and lower-annular dual-electrode distributed micro-gyroscope and a manufacturing method thereof. The micro-gyroscope comprises a monocrystalline silicon substrate, a central fixation supporting column, a micro harmonic oscillator, a plurality of upper electrodes, a lower electrode and a glass substrate. The multiple upper electrodes are uniformly distributed on the upper side of the micro harmonic oscillator, and the lower electrode is arranged on the lower side of the micro harmonic oscillator and is of an annular integrated mode so that the annular integrated lower electrode can be formed. Manufacturing is performed with the combination of MEMS bulk silicon machining and surface silicon machining technologies, different driving and detection modes and different working modes can be provided, and the micro-gyroscope can work in a system needing complex control; driving and detection can be performed by means of the lower electrode and the upper electrodes respectively, the stray capacitance between the driving electrode and the detection electrode can be lowered, and the detection precision can be improved.

The invention discloses an aerated concrete product and a production method. The invention is characterized in that: the aerated concrete product is made from the common silicate cement as raw material, instead of industrial solid waste as raw material in the prior art; and the method comprises the steps of weighing, stirring, grouting, curing, demoulding, cutting, steam curing, naturally drying and test. The aerated concrete product has the advantages of ultra-light weight, high strength, simple fabrication, low energy consumption, and low capital investment. The invention realizes the weight reduction of wall materials and greatly increases the construction efficiency.

The invention discloses fermented paenibacillus poly myxa and a preparation method and application thereof. The preparation method of the fermented panebacillus polymyxa comprises the following steps:carrying out activation, seed culture and fermentation culture on a strain in sequence, and centrifuging and concentrating, thus obtaining the fermented panebacillus polymyxa; the fermented panebacillus polymyxa is a mixture of pellicle and panebacillus polymyxa sporophore; the strain is paenibacillus poly myxa ZJU-N. The fermented panebacillus polymyxa, the preparation method and the applicationdisclosed by the invention have the beneficial effects that by selection of the specific paenibacillus poly myxa and change of the component types and use amounts of a seed culture medium and a fermentation culture medium for fermentation, a fermenting product containing the rich pellicle and paeniebacillus poly myxa sporophore can be obtained and is used for preparing sporophore microcapsules and sporophore microcapsule suspending agents to prevent and control banded sclerotial blight, green smut and bakanae disease of rice.

The invention brings forward an upper-ring and lower-discrete double-electrode distributed micro-gyroscope and a preparation method thereof. The micro-gyroscope of the invention comprises a monocrystalline silicon substrate, a central fixed support column, a miniature harmonic oscillator, an upper electrode, a lower electrode and a glass substrate. The product is manufactured by combining an MEMS bulk-silicon machining technology and a surface silicon machining technology. The invention can provide different driving, detection modes and different work patterns. The micro-gyroscope can operate in a system which requires complex control. By respectively utilizing the lower electrode and the upper electrode for driving and detection, parasitic capacitance between a drive electrode and a detecting electrode is reduced, and detection precision is raised.

The invention provides an adjacent-face-double-discrete-electrode distributed micro gyroscope and a preparing method thereof. The adjacent-face-double-discrete-electrode distributed micro gyroscope comprises a single crystal silicon substrate, a center fixing supporting column, a micro harmonic oscillator, side electrodes, adjacent electrodes and a glass substrate. The multiple side electrodes are evenly distributed on one side face of the micro harmonic oscillator, and the side electrodes evenly distributed are formed; the multiple adjacent electrodes are evenly distributed on one adjacent face of the micro harmonic oscillator, and in this way, the adjacent electrodes evenly distributed are formed. According to the adjacent-face double-discrete-electrode distributed micro gyroscope and the preparing method thereof, the MEMS bulk silicon processing technology and the surface silicon processing technology are combined to make; different driving and detection modes and different working modes are provided, and the adjacent-face double-discrete-electrode distributed micro gyroscope can work in a system needing to be complexly controlled; driving and detecting are carried out through the adjacent electrodes and the side electrodes respectively, stray capacitance between the driving electrodes and the detecting electrodes is reduced, and the detecting accuracy is increased.

The invention discloses a light porous block and its production process. Its composition comprises 35-57 portions of flyash, 25-35 portions of gypsum powder, 10-35 portions of cement, 5-11 portions of activating agent, 3-5 portions of lime, 0.05-0.1 portions of alkali-resisting glass fibre and 2-4 portions of plastric foam glanules, and its production process includes the steps of preparing demoulding agent and activating agent, metering, stirring, pouring, core-drawing, demoulding, curing and obtaining finished product. It is light in weight good in sound-insulating effect and air permeability, and simple in production process, etc.