141results about How to "Achieve large capacity" patented technology

The invention discloses a sensing system based on optical OFDM (Orthogonal Frequency Division Multiplexing) and an FBG (Fiber Bragg Grating) monitoring method thereof, relating to the field of optical fiber sensing. The sensing system comprises an adjustable optical source, an electrooptical modulator, an optical circulator, a weak reflective FBG array, a wavelength tuning control circuit, a signal generator, an optical detector and a digital decoding and control unit, wherein the adjustable optical source is used as a signal optical source; the electrooptical modulator is used for modulating data onto signal optical waves; the optical circulator is used for separating optical signals which are in an incident direction from optical signals which are in a reflective direction; the weak reflective FBG array is used as a sensing element for reflecting the optical signals to the optical circulator; the wavelength tuning control circuit is used for tuning the emitting wavelength of the adjustable optical source; the signal generator is used for generating electric signals which are encoded based on OFDM; the optical detector is used for converting the reflective optical signals into the electric signals; and the digital decoding and control unit is used for positioning an FBG sensor and acquiring variables to be detected. In the invention, by combining the FBG monitoring method based on the optical OFDM, the arrangement density and the sensing distance of FBG sensors are improved, the scanning frequency and the spatial revolution of the system are improved, and large-capacity measurement requirements are satisfied.

The invention provides a storage device sufficiently acting the advantages of the SLC-type flash memory and the MLC-type flash memory. The storage device includes: a binary flash memory that has a first storage area and a capacity of storing two values per each cell; a multivalued flash memory that has a second storage area and a capacity of storing at least three values per each cell; and a controller configured to arrange the first storage area ahead of the second storage area, logically combine the first storage area with the second storage area to form a single combined storage area, and perform data reading and data writing from and into the combined storage area. Data management information is stored in a head of the combined storage area according to a predetermined file system.

The invention relates to a multifunctional cooking machine which comprises an inner pot and a host for driving and controlling the inner pot to work, wherein the inner pot is detachably shafted with the host; the host comprises a host frame, a positioning mechanism, a driving mechanism, a pot seat, an electromagnetic heating mechanism which can heat the inner pot by regions and is close to the arc-shaped surface of the inner pot, and a control circuit; the control circuit is connected with the driving mechanism and the electromagnetic heating mechanism respectively; the driving mechanism is fixedly connected with the positioning mechanism and the pot seat respectively; the electromagnetic heating device is fixed on the positioning mechanism and is positioned between the positioning mechanism and the pot seat. A large volume is realized as much as possible through the specific structure of the inner pot; food materials with different shapes and volumes can be stir-fried; the cooking machine is convenient to clean and use, long in service life, large in heating area, quick in heating and uniform in heat transfer.

This invention provides a sliding component of a compressor that has a high tensile strength, can develop satisfactory durability during operation, can realize ''familiarity'' in the earliest possible stage, and does not cause seizing during abnormal operation. Sliding components of compressors (17, 23, 24, 26, 39, 60, 96, 310b, 524, 526, 644, 646, 724, 726, 734, 736, 817, 821, 823, 824, 825, 826, 827, 921, and 924)comprise 2.0 to 2.7% by weight of carbon and 1.0 to 3.0% by weight of silicon with the balance consisting of iron containing unavoidable impurities. In this case, graphite is smaller than flake graphite in flake graphite cast iron, and the hardness of at least a part thereof is higher than HRB90 and lower than HRB100.

The invention discloses a dielectric medium of a ceramic capacitor and a preparation process thereof and belongs to the field of capacitor manufacturing. The dielectric medium comprises the following raw materials in parts by weight: 40-60 parts of BaTiO3, 10-20 parts of SrTiO3, 10-20 parts of BaZrO3, 8-12 parts of CaTiO3, 8-12 parts of MgNb2O5, 2-4 parts of CeO2, 2-4 parts of ZnO, 2-4 parts of Co2O3, 1-3 parts of BaSiO3 and 1-3 parts of Gd2O3. The preparation process comprises the following steps of: crushing the raw materials and uniformly mixing the raw materials; then drying the raw materials and adding an adhesive for granulation to obtain granular materials; and finally, pressing the granular materials into a raw blank sheet and sintering the same to obtain the dielectric medium. The dielectric medium of the ceramic capacitor provided by the invention is high in electric constant and high in withstand voltage, and free of environmental pollution in a using process. The invention aims to provide a preparation method of the dielectric medium of the ceramic capacitor. The preparation method is relatively low in cost and free of pollution- to the environment in the preparation process.

The invention provides a dielectric material for a multilayer ceramic capacitor with medium-high voltage X7R characteristics. The dielectric material is prepared from the following components: 100mol of (Ba<1-a>Y)TiO<3>, 0.2-1.0mol of MgTiO3, 0.05-0.5mol of oxide selected from Mn, Cr, Co and Fe, 0.2-1.0mol of oxide selected from Ca, Si, Li, AL and B, 1.0-4.0mol of oxide selected from Ho, Yb, Gd, Dy, Sm and E and 0-0.3mol of oxide selected from W, Mo and V. The (Ba<1-a>Y)TiO<3> produced by a low-cost solid-phase method is taken as a main raw material, and the dielectric material with anti-reductive X7R characteristics, which is sintered at 1260-1320 DEG C, is obtained through an optimization process and a formula under the common action of various auxiliary ingredients. The dielectric material is suitable for a medium-high voltage multi-layer ceramic capacitor of which the thickness of a dielectric layer is greater than 8 microns and the rated voltage is greater than 100V, and is good in temperature stability, high in insulation resistance, high in withstand voltage and high in reliability.