Checkweigher Conformity Test Data

Checkweighers (a type of industrial scale) were tested under different circumstances in laboratory conditions. Mass and speed were varied and, for each variation, 60 deviations of the measured mass from the nominal mass recorded. The checkweigher passes the test if the absolute mean error is at most the Maximum Permissible Mean Error (MPME) and the standard deviation is at most the Maximum Permissible Standard Deviation (MPSD). If any or both of these values are exceeded, the checkweigher fails the test. This dataset contains only passing checkweighers.

File Format:

The file contains one instance per row. The columns are tab-separated. The file extension (*.tsv) stands for "tab-separated values".

Attributes:

identifier: Data with the same identifier were collected on the same machine. String.

mass: Nominal ("true") mass in g. Float.

speed: Conveyor belt speed of the checkweigher in m/s. Not available for all instances. Float.

mpme: Maximum Permissible Mean Error according to OIML R 51. Float.

mpsd: Maximum Permissible Standard Deviation according to OIML R51. Float.

deviation_0 - deviation_59: Deviations of the measured value from the nominal mass in g (60 repeated measurements). Float.

Remarks:

There is a typo in the OIML Bulletin publication using this dataset. It speaks of 95 measurements, but actually used and contained in this dataset are 94.