A three-dimensional measurement method of geometric parameters of a rope or a cable provides for obtaining a three-dimensional representation of a plurality of 3D contour points of the rope or cable and calculating the geometric parameters thereof, such as diameter, roundness and axis. A calibrated three-dimensional optical measurement system for measuring geometric parameters includes a plurality of digital image acquisition devices and a digital image processing device configured to perform the steps of the three-dimensional measurement method.

This invention relates to a pipeline-inspecting device. More specifically, the invention relates to a pipeline-inspecting device capable of at least (i) detecting defects in the lining of the pipeline; (ii) visually marking each of the defects in the pipeline; and (iii) recording the location of each of the defects along such pipeline in a single pass. The pipeline-inspecting device includes a primary body (20) being operably movable along a pipeline, fitted with a plurality of primary contacts (40) extending radially from the primary body (20) for operably riding in contact with an internal surface of the pipeline, the contacts (40) being spaced circumferentially relative to one another through 360 degrees about the primary body (20). The device further includes one or more secondary contacts (116) for operably connecting the device to the pipeline and a plurality of marking members (66) associated with each of the respective contacts (40) for visually marking the internal surface of the pipeline in the vicinity of defects detected therein, wherein the defects are operably detected by monitoring an electrical condition change between the primary (40) and secondary contacts (116). In use, and in the event of an electrical condition change arising between one of the primary contacts (40) and the secondary contact (116), the marking member associated with that respective primary contact (40) marks the internal surface of the pipeline in the vicinity of the defect detected by such primary contact (40).

A simulation hub includes an end plate, a clamping portion and a measuring disc, in which the clamping portion and the measuring disc are both detachably fixed to the end plate; the clamping portion includes a first positioning hole for positioning and clamping, the first positioning hole is a cylindrical hole, and the cylindricity of the first positioning hole is smaller than a preset value; the outer circumference of the measuring disc includes at least a measuring cylindrical surface having a preset axial length and a bus parallel to an axis of the first positioning hole, and circular runout test values of the measuring cylindrical surface are preset first or second harmonic runout values; and the outer diameter of the measuring cylindrical surface is adapted to the inner diameter of the first positioning hole.

A method of inspecting a pipe joint for use in a subsea pipeline and a method of manufacturing a pipe joint for use in a subsea pipeline employing said inspection method are disclosed, the inspection method comprising the steps of: receiving a pipe joint; measuring the ovality of the pipe joint to obtain ovality data; determining that the ovality data does not exceed a predetermined maximum pipe joint ovality value; and carrying out external pressure collapse tests on a ring cut from one end of the received pipe joint, resulting in data representative of the hydrostatic collapse pressure of said pipe joint for use in confirming that the pipe joint is suitable for its intended use.

In a hose connector fitting, an outer circumferential surface of a socket is crimped toward a radially inner side thereof within a crimping range along an axis direction of the socket in the state where a hose is inserted into an annular space between an outer circumferential portion of a nipple and an inner circumferential portion of the socket. A shape measuring device includes: a sensor and a rotational moving unit that detect distance data from a reference position to the surface of the socket over a zone including at least the entire crimping range; a shape data generating unit that generates shape data representative the three-dimensional shape of the socket surface based on the detected distance data; and a measurement data calculating unit that calculates measurement data about the crimping state of the socket based on the shape data.

A method, system and apparatus are provided in accordance with example embodiments for optically measuring workpiece features, and more particularly, to optically measure internal surfaces of round bores and countersinks. Methods include: advancing a probe through a bore and a countersink; and measuring dimensions of the bore and the countersink using a bore laser cone and a countersink laser cone, where the bore laser cone is received at the bore camera lens in response to reflecting from a first reflective surface of the probe to a surface of the bore to a third reflective surface of the probe and to the bore camera lens, and where the countersink laser cone is received at the countersink camera lens in response to the countersink laser cone reflecting from a second reflective surface of the probe to a surface of the countersink to a countersink beam reflector and to the countersink camera lens.

The present invention relates to a method for detecting the texture, geometric shape and geometric center of a geometric element, which comprises the following steps: providing a first light beam projected on the object under test to obtain a gradual gradient image, and its texture and topography are reconstructed; providing a second light beam directed toward the object, and then the object is rotated, to obtain a continuous surface shape track, and reconstructs the surface shape of the object; calculating the geometric center from the surface shape track, and superimposes the surface shape track with the topography to rebuild a three-dimensional geometric contour of the object.

A measurement apparatus for measuring a laser focus spot size, which includes a two-dimensional image detector and an imaging system which forms a magnified image of a focus spot located an object plane onto the image detector. The imaging system includes at least an objective lens. A sealed liquid container is secured over a part of the objective lens such as the optical surface of the objective lens is immersed in the liquid (e.g. water) within the container. The liquid container has a window through which the laser beam enters. An image processing method is also disclosed which processes the image obtained by the image detector to obtain the focus spot size while implementing an algorithm that corrects for the effect of ambient vibration.

Provided a full-automatic wheel hub 3D scanning system for intelligent production line of automotive wheel hubs, comprising: a base plate is provided with an X-directional displacement control device and a Y-directional displacement control device; a roller-table assembly is arranged on the base plate and comprises a roller table, wherein the roller table is provided with an opposite-type photoelectric sensors and a wheel hub centring positioning device for centring positioning a wheel hub; a 3D scanning device, comprising a mounting bracket, wherein the bottom of the mounting bracket is controlled by the Y-directional displacement control device; a 3D scanner is mounted on the mounting bracket; a wheel hub scanning platform is arranged at an end of the roller-table assembly and is controlled by the X-directional displacement control device; and a robot is arranged on a first side of the wheel hub scanning platform, for conveying the wheel hubs after 3D scanning.

A calibrated three-dimensional optical measuring apparatus for three-dimensional measurement of geometric parameters of a rope has a frame defining and arranged around a rope receiving cavity. Image acquisition devices acquiring digital images of regions of an outer surface of the rope are fixed to the frame and arranged around the rope when the calibrated three-dimensional optical measuring apparatus receives the rope in the rope receiving cavity. An electronic digital image processing device processes a multiplicity of digital images and obtains a three-dimensional photogrammetric reconstruction of points of the digital images of the rope. Having defined a circumferential direction running around a main extension axis of the rope and lying on a plane incident or perpendicular to the main extension axis of the rope, the image acquisition devices are arranged on the frame circumferentially spaced apart from one another along the circumferential direction. A lighting device is arranged along the circumferential direction between a pair of adjacent image acquisition devices.