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5 results about "Spinning disk" patented technology
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A spinning disk is the mechanism within a hard disk drive to which memory is written. With rotating plates attached to an arm that writes the data, the spinning disk mechanism physically resembles a record player (although it is sealed within an enclosure).
Rapid ellipsometry using encoded angular distribution of light
PCT designated stageWO2026089846A1Polarisation-affecting propertiesOptically investigating flaws/contaminationPhotodetectorData acquisition
Variable-angle ellipsometry is performed using a high speed polarization state modulator, a photodetector, and a digital micromirror device or spinning disk to encode the angle of incidence of light with a high sampling rate in a time domain or frequency domain. A variable-angle ellipsometer uses a high speed, axially stationary polarization state modulator, such as a photoelastic modulator, and a high speed detector, such as a photodiode, for high speed data acquisition. To acquire data at a plurality of incident angles, a lens is used to generate a large incident angle distribution along an optical axis that is at an oblique angle of incidence and discrete or combinations of incident angles of light are selected in a sequence in the time domain or modulated over a plurality of incident angles in the frequency domain.
Owner:ONTO INNOVATION INC
Rotational flow assembly and metering valve
ActiveCN224229258UImprove structural strengthavoid deformationFuel injection apparatusMachines/enginesHeight differenceRotational flow
The utility model relates to the field of metering valves, and particularly discloses a rotational flow assembly which comprises a rotational flow piece and a valve seat, a receding groove and a positioning groove are formed in the rotational flow piece, and a clamping groove, a valve groove and a valve hole are formed in the valve seat. The utility model further discloses a metering valve comprising the rotational flow assembly. Wherein the spinning disk is integrally formed by adopting a die-casting process, so that the structural strength of the spinning disk can be improved, the problem of deformation of the metering disk during installation in a split design is avoided, the production efficiency is improved, and the cost is reduced; in order to guarantee the flatness of the plane, the receding groove is formed in the sprue to eliminate the height difference of redundant materials at the sprue, and the fitting degree of the surface of the spinning disk is guaranteed; and the positioning groove can play a role in positioning the workpiece when the spray hole is drilled, so that the machining precision is higher.
Owner:GUANGXI HONGLI TECH CO LTD
Rapid ellipsometry using encoded angular distribution of light
Variable-angle ellipsometry is performed using a high speed polarization state modulator, a photodetector, and a digital micromirror device or spinning disk to encode the angle of incidence of light with a high sampling rate in a time domain or frequency domain. A variable-angle ellipsometer uses a high speed, axially stationary polarization state modulator, such as a photoelastic modulator, and a high speed detector, such as a photodiode, for high speed data acquisition. To acquire data at a plurality of incident angles, a lens is used to generate a large incident angle distribution along an optical axis that is at an oblique angle of incidence and discrete or combinations of incident angles of light are selected in a sequence in the time domain or modulated over a plurality of incident angles in the frequency domain.
Owner:ONTO INNOVATION INC
Machine learning defect management in storage devices
Methods are provided for managing defects in Hard Disk Drive (HDD) storage devices. In particular, only a portion of the cylinders of an HDD is tested. A bag of machine learning models is used to reconstruct the data for the untested cylinders. A defect file for the HDD is generated, a classifier model may be applied to the defect file, and one or more neural network models may be applied. If the defects are unsuitable for use by the models, then a scan of the entire HDD is run instead. An HDD comprises a rotating disk and a read / write head actuated above the disk surface. The disk may be formatted into concentric data tracks, with each track being divided into sectors. The tracks may be organized into zones (groups of tracks called cylinders), and the axially parallel sectors in each cylinder may be organized into wedges.
Owner:WESTERN DIGITAL TECHNOLOGIES INC
Disc apparatus and method
Owner:KK TOSHIBA +1