A PLC system includes a displacement sensor, drives, and a PLC. The PLC system obtains line measurement data including a plurality of pieces of measurement information (1D information) from the displacement sensor and a plurality of pieces of positional information from the drives that are read in accordance with a measurement range and a measurement interval (measurement recording position) defined by the PLC for measuring an object A, and generates 2D shape data.

A PLC system includes a displacement sensor, drives, and a PLC. The PLC system obtains line measurement data including a plurality of pieces of measurement information (1D information) from the displacement sensor and a plurality of pieces of positional information from the drives that are read in accordance with a measurement range and a measurement interval (measurement recording position) defined by the PLC for measuring an object A, and generates 2D shape data.

A manufacturing method for an engine includes: preparing, as a preparing step, a cylinder head having a surface on which a ceiling surface of a combustion chamber is formed; forming, as a film formation step, a thermal insulation film on the ceiling surface; measuring, as a measurement step, a volume of the thermal insulation film; and selecting, as a selection step, a rank for an engine valve to be used in combination with the ceiling surface so as to correspond to an amount of difference of a measured volume of the thermal insulation film from a designed value of a volume of the thermal insulation film, the rank being selected from a plurality of ranks set in correspondence with thicknesses of umbrella portions of engine valves.

A manufacturing method for an engine includes: preparing, as a preparing step, a cylinder head having a surface on which a ceiling surface of a combustion chamber is formed; forming, as a film formation step, a thermal insulation film on the ceiling surface; measuring, as a measurement step, a volume of the thermal insulation film; and selecting, as a selection step, a rank for an engine valve to be used in combination with the ceiling surface so as to correspond to an amount of difference of a measured volume of the thermal insulation film from a designed value of a volume of the thermal insulation film, the rank being selected from a plurality of ranks set in correspondence with thicknesses of umbrella portions of engine valves.

A method of facilitating the approach to a platform by an aircraft. The value of the required position integrity performance (RNP) is determined for a localization system. During an approach stage, this position integrity performance (RNP) is compared with a position integrity radius (HPL) resulting from the use of a GNSS localization system, and an alert is generated if the position integrity radius (HPL) is greater than the position integrity performance (RNP).