A method for producing a metal bladed element of a turbine engine, in particular of an aircraft, includes steps of producing the bladed element, depositing a coating made of wear-proof material on at least one portion of the bladed element and verifying, preferably visually, the conformity of the bladed element. Verifying the conformity of the bladed element includes implementing a verification element on the bladed element. The bladed element is configured according to a conformity threshold value to conceal a non-conformity of the coating, if the non-conformity has at least one dimension less than the threshold value, and to show at least one portion of this non-conformity if the at least one dimension is greater than the threshold value.

A method for producing a metal bladed element of a turbine engine, in particular of an aircraft, includes steps of producing the bladed element, depositing a coating made of wear-proof material on at least one portion of the bladed element and verifying, preferably visually, the conformity of the bladed element. Verifying the conformity of the bladed element includes implementing a verification element on the bladed element. The bladed element is configured according to a conformity threshold value to conceal a non-conformity of the coating, if the non-conformity has at least one dimension less than the threshold value, and to show at least one portion of this non-conformity if the at least one dimension is greater than the threshold value.

An edge defect gauge that measures a size of edge defects of glass sheets, the edge defect gauge comprising: a body including opposite end edges and opposite side edges that extend between the end edges forming a body, the body having opposite flat faces; and at least one of (i) a dog ear measuring projection extending outward from one of the end edges at one of the side edges, the dog ear measuring projection having a predetermined height and a predetermined length or (ii) a cantilever measuring recess extending inward from the other end edge at the one of the side edges, the cantilever measuring recess having a predetermined height and a predetermined length.

An edge defect gauge that measures a size of edge defects of glass sheets, the edge defect gauge comprising: a body including opposite end edges and opposite side edges that extend between the end edges forming a body, the body having opposite flat faces; and at least one of (i) a dog ear measuring projection extending outward from one of the end edges at one of the side edges, the dog ear measuring projection having a predetermined height and a predetermined length or (ii) a cantilever measuring recess extending inward from the other end edge at the one of the side edges, the cantilever measuring recess having a predetermined height and a predetermined length.

A portable dimensional reference (PDR) that is transportable to a tower site and deployable on site at ground level near a tower. The PDR includes a pair of target pads and multiple connecting segments, which may be attached end-to-end between the target pads. The target pads are marked with respective targets that enable photogrammetry software to identify the targets, their locations, and the distance between them with high precision, enabling the software to apply the known distance as a scale constraint for accurately scaling dimensions of imaged components of the tower.

A valve clearance measuring assembly includes a panel having a first side, a second side, a forward edge and a rearward edge. The forward edge is extendable between a valve tip and a rocker arm. The first and second sides of the panel each are planar and orientated planar with respect to each other. A head includes a central member and a pair of arms. The arms extend in a generally same direction with respect to each other to define a space between the arms. The panel is attached to the arms and traverses the space. The forward edge is in static communication with the arms such that the forward edge is in a linear configuration as the forward edge traverses the space.

In a method for measuring a gauge (20), the invention provides a standard (30). The standard has a calibrated standard distance (33) between a standard reference plane (31) and a standard detection line (35), being mutually parallel. When the standard is placed with its standard reference plane onto a gauge reference plane (21), the standard is traced with a tracing point (12) of a measuring apparatus (10). Thereby it is possible to reliably measure the distance (43) between the standard detection line (35) and the apparatus reference plane (11), and hence the distance between the gauge reference plane (21) and the apparatus reference plane (11). The invention allows to reliably measure gauges in an affordable, non-complex measuring apparatus, in cases where, in order to reliably measure gauges in the apparatus, such gauges cannot be placed with their gauge reference planes onto the apparatus reference plane.

In a method for measuring a gauge (20), the invention provides a standard (30). The standard has a calibrated standard distance (33) between a standard reference plane (31) and a standard detection line (35), being mutually parallel. When the standard is placed with its standard reference plane onto a gauge reference plane (21), the standard is traced with a tracing point (12) of a measuring apparatus (10). Thereby it is possible to reliably measure the distance (43) between the standard detection line (35) and the apparatus reference plane (11), and hence the distance between the gauge reference plane (21) and the apparatus reference plane (11). The invention allows to reliably measure gauges in an affordable, non-complex measuring apparatus, in cases where, in order to reliably measure gauges in the apparatus, such gauges cannot be placed with their gauge reference planes onto the apparatus reference plane.

A geometrical error measurement method for a feed drive system includes entering coordinate values of four vertices of a virtual regular tetrahedron, mounting a position indicator to an end of a main shaft of a feed drive system, mounting three center mounts at three respective vertices of the four vertices except for the remaining vertex at which the main shaft is positioned while moving the main shaft of the feed drive system sequentially from one vertex to another according to the entered coordinate values, measuring distances between each of the four vertices indicated by the three center mounts and the position indicator with a double ballbar, and calculating a geometrical error from the measured distances.

A geometrical error measurement method for a feed drive system includes entering coordinate values of four vertices of a virtual regular tetrahedron, mounting a position indicator to an end of a main shaft of a feed drive system, mounting three center mounts at three respective vertices of the four vertices except for the remaining vertex at which the main shaft is positioned while moving the main shaft of the feed drive system sequentially from one vertex to another according to the entered coordinate values, measuring distances between each of the four vertices indicated by the three center mounts and the position indicator with a double ballbar, and calculating a geometrical error from the measured distances.