A system and method for measuring an inside diameter of a pipe to determine if it exceeds a predetermined value using a plurality of fingers operatively connected to a spring. When in a fully extended position, the distance between opposite fingers is the predetermined value. The fingers are pivotable between a starting position, through the fully extended position, and to a failing position. In the starting position, an outer end of each finger engages an inside surface of the pipe to compress the spring. If the diameter exceeds the predetermined value as the system moves through the pipe, the pipe inside surface will no longer engage the fingers, which releases the spring causing the fingers to pivot to the failing position, where they remain until the system is removed from the pipe and manually reset.

A system and method for measuring an inside diameter of a pipe to determine if it exceeds a predetermined value using a plurality of fingers operatively connected to a spring. When in a fully extended position, the distance between opposite fingers is the predetermined value. The fingers are pivotable between a starting position, through the fully extended position, and to a failing position. In the starting position, an outer end of each finger engages an inside surface of the pipe to compress the spring. If the diameter exceeds the predetermined value as the system moves through the pipe, the pipe inside surface will no longer engage the fingers, which releases the spring causing the fingers to pivot to the failing position, where they remain until the system is removed from the pipe and manually reset.

A method of measuring the value of a machine tool's performance based upon tangible results. The method specifies the core principles of defining a machine tool part setup consisting of a plane, orientation, and origin. By establishing the plane, orientation, and origin measuring programs and cutting toolpaths are recorded with precision. Machine tool results of positioning, squareness, parallelism, and circularity are revealed upon establishing the proper machine tool setup. Using the method displays the quality of a machine tool which defines its value in the marketplace.

A method of measuring the value of a machine tool's performance based upon tangible results. The method specifies the core principles of defining a machine tool part setup consisting of a plane, orientation, and origin. By establishing the plane, orientation, and origin measuring programs and cutting toolpaths are recorded with precision. Machine tool results of positioning, squareness, parallelism, and circularity are revealed upon establishing the proper machine tool setup. Using the method displays the quality of a machine tool which defines its value in the marketplace.

The present invention addresses the problem of providing a method for measuring axial clearance of a wheel bearing device, with which it is possible to make a high-precision measurement of negative axial clearance. This method comprises: a step (S02) for press-fitting an inner race (4); a first negative axial clearance measurement step (S03); a swaging step (S04); an inner-race press-in amount measurement step (S05); a first inner-race outer-diameter increment measurement step (S06); a second inner-race outer-diameter increment calculation step (S07); an outer-diameter increment difference calculation step (S08); a first axial clearance decrement calculation step (S09); a second axial clearance decrement calculation step (S10); a third axial clearance decrement calculation step (S11); and a second negative axial clearance calculation step (S12).

A tool and system for measuring the size, position, and spacing of rebar in a concrete structure comprises a card preferably having a linear periphery. Around the periphery are a plurality of cutouts, with each of the cutouts adapted to measure the diameter of a standard rebar. The periphery of the card also has a series of hash marks to determine linear measurements. The amount of clear cover of the resulting concrete is measured by placing the tool on rebar inboard of the formwork and counting the hash marks to the adjacent formwork. The spacing between two rebars is measured by placing the tool on one rebar and counting the hash marks between two rebars. Alternatively, the distance between rebars and rebar overlap length is estimated by using the tool to determine the scale, if the space between bars is and overlap is longer that the tool length.

A tool and system for measuring the size, position, and spacing of rebar in a concrete structure comprises a card preferably having a linear periphery. Around the periphery are a plurality of cutouts, with each of the cutouts adapted to measure the diameter of a standard rebar. The periphery of the card also has a series of hash marks to determine linear measurements. The amount of clear cover of the resulting concrete is measured by placing the tool on rebar inboard of the formwork and counting the hash marks to the adjacent formwork. The spacing between two rebars is measured by placing the tool on one rebar and counting the hash marks between two rebars. Alternatively, the distance between rebars and rebar overlap length is estimated by using the tool to determine the scale, if the space between bars is and overlap is longer that the tool length.

The invention relates to a measuring device for measuring a diameter of a rope-shaped material to be measured, with the material to be measured being a fibre rope, the measuring device comprising two measuring surfaces parallel to one another, a pressing means configured for pressing the measuring surfaces onto the material to be measured located between the measuring surfaces with a predetermined measuring force during a measuring process, and a measuring unit configured for measuring a distance between the measuring surfaces, with the measuring device being configured as a portable handheld device, the measuring device comprising a guiding device which can be placed onto the material to be measured for the measuring process, with the guiding device being arranged in relation to the measuring surfaces in such a way that the material to be measured assumes a predefined position relative to the measuring surfaces during the measuring process, and with the guiding device being configured in such a way that the material to be measured can be placed onto the guiding device on both sides of the measuring surfaces.

The invention relates to a measuring device for measuring a diameter of a rope-shaped material to be measured, with the material to be measured being a fibre rope, the measuring device comprising two measuring surfaces parallel to one another, a pressing means configured for pressing the measuring surfaces onto the material to be measured located between the measuring surfaces with a predetermined measuring force during a measuring process, and a measuring unit configured for measuring a distance between the measuring surfaces, with the measuring device being configured as a portable handheld device, the measuring device comprising a guiding device which can be placed onto the material to be measured for the measuring process, with the guiding device being arranged in relation to the measuring surfaces in such a way that the material to be measured assumes a predefined position relative to the measuring surfaces during the measuring process, and with the guiding device being configured in such a way that the material to be measured can be placed onto the guiding device on both sides of the measuring surfaces.

A measurement device and method that allows for precise placement, as well as more accurate measurement of various body parts, including vessels, lesions, and/or lumens of vessels of various body parts. The measurement device comprises one or more measurement tapes having (i) a plurality of measurement marks for measuring a distance and/or a length of a vessel and (ii) a plurality of circular indicators for measuring a diameter of a lumen of the vessel.