Abstract: A device includes a first sensor for making a radial measurement of a tubular component and a support which can drive the first sensor in a circular trajectory in a predefined plane orthogonal to the principal axis of the component. The support includes a principal body that can be attached to the component by a releasable attachment mechanism and a rotary shaft onto which an arm carrying the first sensor is attached to allow displacement of the first sensor in a circular trajectory inside or about the component. The device further includes a second sensor for measuring an angular position of the first sensor for each of its radial measurements, the radial and angular measurements obtained allowing the profile of the component in the predefined plane to be determined.

Abstract: A hydraulic micrometer system for remote measurement of inside dimensions such as the inside diameter of long straight/curved pipes and tubes adapted to go deep inside any long straight/curved pipe/tube by way of provision of flexible operative connection there between the micrometer head adapted for traversal deep inside the pipe/tube and the like and a remotely located control unit. Importantly, the micrometer system preferably includes a three-point micrometer for measurement of dimensions of internal diameter and the like or a two point micrometer for measurement of depth of a slot or groove and the like features. Advantageously, the hydraulic micrometer system have applications in manufacturing industries, process industries, power plants, chemical plants etc., including in hazardous and humanly inaccessible positions. The system is user friendly including PC-based control, display and data analysis provision for wide industrial application and use.

Abstract: A method and apparatus for measuring hole parameters by using a probe signal have been disclosed.

Abstract: The internal diameter measurement device is inserted into a cavity to measure its internal diameter. The internal diameter measurement device includes: a tubular sheath inserted into the cavity; a balloon which is provided on a distal end portion of the sheath, and is capable of expanding by supplying a fluid to an inner portion thereof; a linear reference member having a first end portion fixed to the distending portion or the distal end portion of the insertion portion, and a second end portion moving towards the distal end of the insertion portion in conjunction with the expansion of the distending portion; and a measuring portion which is provided in a proximal end portion of the insertion portion and is capable of confirming the position of the second end portion of the reference member. This internal diameter measurement device enables accurate measurement irrespectively of dimensions of a pipeline to be measured.

Abstract: A hydraulic micrometer system for remote measurement of inside dimensions such as the inside diameter of long straight/curved pipes and tubes adapted to go deep inside any long straight/curved pipe/tube by way of provision of flexible operative connection there between the micrometer head adapted for traversal deep inside the pipe/tube and the like and a remotely located control unit. Importantly, the micrometer system preferably includes a three-point micrometer for measurement of dimensions of internal diameter and the like or a two point micrometer for measurement of depth of a slot or groove and the like features. Advantageously, the hydraulic micrometer system have applications in manufacturing industries, process industries, power plants, chemical plants etc., including in hazardous and humanly inaccessible positions. The system is user friendly including PC-based control, display and data analysis provision for wide industrial application and use.

Abstract: The internal diameter measurement device is inserted into a cavity to measure its internal diameter. The internal diameter measurement device includes: a tubular sheath inserted into the cavity; a balloon which is provided on a distal end portion of the sheath, and is capable of expanding by supplying a fluid to an inner portion thereof; a linear reference member having a first end portion fixed to the distending portion or the distal end portion of the insertion portion, and a second end portion moving towards the distal end of the insertion portion in conjunction with the expansion of the distending portion; and a measuring portion which is provided in a proximal end portion of the insertion portion and is capable of confirming the position of the second end portion of the reference member. This internal diameter measurement device enables accurate measurement irrespectively of dimensions of a pipeline to be measured.

Abstract: An instrument is adapted to be attached to a rotational member of an instrument station for obtaining information about a workpiece. The instrument includes at least one orifice adapted to be placed in selective fluid communication with a source of fluid. An instrument station may also be provided to include an instrument and a rotational member connected to the instrument for rotating the instrument about a rotational axis. The instrument station may also include a source including fluid, wherein the fluid source is in fluid communication with the instrument and a monitoring apparatus. An apparatus may also include an instrument and a source of substantially incompressible fluid wherein the source is in fluid communication with the instrument. Methods of obtaining information about a workpiece and methods for determining the center of a bore are also disclosed.