The present invention provides a measurement device for grinding wheel. One or more thickness measurement device is disposed slidably on a platform. A spinning device is disposed on the platform. A grinding wheel is fixed on the spinning device. The spinning shaft spins the grinding wheel. The one or more thickness measurement device measures the flatness condition of the grinding wheel. Furthermore, according to the present invention, a diameter measurement device is disposed inside the platform and measures the roundness of the outer periphery of the grinding wheel. Since the structure can be disassembled easily, the whole measurement device for grinding wheel can be carried conveniently. In addition, measurements can be performed by users on the site where the grinding wheel is located for real-timely understanding the real size and wear condition of grinding wheel.

Jitter is removed from point cloud data by processing different groups of data points in the point cloud data in succession to minimize the entropy of the point cloud data. Each group in the point cloud data is generated at either different points in time or from detecting different pulses of reflected laser light from a target. The data points in a selected group are repetitively shifted en masse in the coordinate system of the point cloud data and the entropy of the point cloud data is re-calculated until subsequent shifts of the data points in the selected group does not further reduce the entropy. The remaining groups are subsequently processed in a similar fashion until the entropy of the point cloud data reaches a minimum.

A system and method for non-contact measurement of remaining spooled material. The system comprises at least one optical signal source configured to illuminate spooled material with an optical beam having an optical beam width that illuminates the material remaining in the spool. The optical beam width and spacing are such that spooled material is illuminated by each optical signal source. The system includes drive circuitry configured to drive the at least one optical signal source using pulses. The system further includes at least one optical signal receiver configured to receive light reflected from each of said light pulses. The system still further includes a processor configured to: establish a number and drive strength of the pulses; and cause measurements to be performed of the remaining spooled material.

A method of producing a resin-impregnated fiber bundle roll body includes unwinding a fiber bundle from a bobbin; winding the fiber bundle on a winding core rotating around a fixed axis through a movable winding head to prepare a product; and leading the fiber bundle taken off in the unwinding to the winding between the unwinding and winding, wherein the leading or winding includes a resin impregnating the fiber bundle, and the winding includes a fiber content calculation of a fiber content in a layer of the fiber bundle on the winding core of an intermediate product to control one according to the fiber content: a resin adhesion amount in the resin adhesion operation; a winding tension of the fiber bundle applied to the intermediate product; a removal amount of a surplus resin layer on an outer surface of the intermediate product; and a resin viscosity in the intermediate product.

An apparatus for determining properties of a laboratory sample container is presented. The apparatus comprises a light source for emitting light to illuminate the laboratory sample container and a number of curved reflecting and/or scattering units. A respective curved reflecting and/or scattering unit comprises a curved shape and is adapted to reflect and/or scatter light of the light source to an outer surface of the laboratory sample container for illuminating the laboratory sample container. The apparatus also comprises a camera adapted to take an image of the laboratory sample container. The image comprises image data related to the laboratory sample container. The apparatus also comprises a control unit adapted to determine the properties of the laboratory sample container based on the image data related to the laboratory sample container.

A method for detecting a characteristic of a textile or metal thread fed to an operating machine, by the generation of a light signal impacting the thread to create a shadow on an optical sensor device connected to means for monitoring a characteristic of the thread on the basis of an electrical signal emitted by such sensor device as a function of the shadow generated on said sensor device by the thread itself, the characteristic being a physical characteristic of the thread such as its diameter or a characteristic of the feed of the thread when in movement, such as its speed. The signal may be detected in analog mode or a digital mode, the signal detected in the digital mode providing real time calibration of the signal detected in analog mode to generate an electrical signal used by the monitoring means to monitor the characteristics of the thread.

The invention relates to a method for measuring a tubular strand exiting from an extrusion device, wherein electromagnetic radiation is directed from at least one radiation source within a frequency range of 1 GHz to 6000 GHz from the inside to the inner side of the tubular strand, wherein electromagnetic radiation reflected by the tubular strand is received by at least one radiation receiver, and wherein the diameter, and/or the wall thickness, and/or deviations in shape of the tubular strand are ascertained from the received electromagnetic radiation. Moreover, the invention relates to a corresponding device.

A monitoring device can include one or more sensors, and a processor, operably connected to the one or more sensors, configured to execute computer-readable instructions that cause the processor to perform operations including detecting sensor data from the one or more sensors. The sensor data can be collected as the monitoring device is in transit in a transport system for delivery items. The operations can also include detecting a malfunctioning component in the transport system based on the sensor data, and transmitting a maintenance indicator to a control system of the transport system, wherein the maintenance indicator identifies the malfunctioning component.

Embodiments of the disclosure relate to a method of preparing a bundled cable. In the method, a plurality of subunits is wound around a central member in one or more layers of subunits to form the bundled cable. For a section of the central member, each layer of subunits has a pitch over which a subunit of the layer of subunits makes one revolution around the section of the central member and a length of the subunit required to make the one revolution. The subunits are configured to have a nominal helical length equal to the ratio of a nominal length to a nominal pitch. Further, in the method, a measurement of the bundled cable is monitored, and a winding rate of the plurality of subunits is adjusted based on the measurement in order to account for deviations from the nominal helical length.

Methods and systems for the absolute high-resolution measurement of angle of rotation of a shaft, which allow for concurrent measuring of axial displacement and/or encoded identification information, are disclosed. Included is a method for measuring characteristics of a rotating shaft comprising obtaining optical signals by optically probing one or more patterns having a leading edge and a series of symbols disposed at one or more circumferences of the shaft; oversampling the optical signals; measuring time of arrival for the leading edges and determining therefrom an amount of time between arrival of two or more of the leading edges; interpolating and extrapolating the amount of time between arrival of the leading edges; and determining therefrom one or more of shaft twist, angle of rotation and/or axial loading, translation, or displacement. The methods include optically probing a pattern disposed around the circumference of a shaft that comprises a series of wedge-shaped symbols.