Calibration of tools and instruments

Machine tool calibration

the machine must be installed correctly

identification of single errors, such as errors of Squareness between the linear axes

Omitted geometric errors, hysteresis, and temperature drift affect the measurement result.

Orientation constraint

Advantages include eliminating the need for precise position measurement and mechanical devices

independence of the measurement range and accuracy of the angle positioning of the inclinometer

Orientation restriction is implemented by aligning the biaxial inclinometer

household gas meters

The indication errors of gas meters worsen as temperature varies.

The use age of gas meter has negligible influence on its metrological performance, during the 10 years' legal duration.

metrological characteristics often deteriorate due to the abrasion of moving parts and the aging of the material over time

Smart Electrical Energy Meter (SEEM)

The accuracy check of the meters will be performed without having moving a team

During maintenance, if the meter was broken, we do not need to take it to the
laboratory, for the calibration

The calibration on site takes into account the electromagnetic perturbations

measuring instruments for low absolute pressures

During calibration, at least three series of independent measurements are taken over the entire
range.

The dynamic equilibrium method is provided when the inlet valve connecting the measuring
chamber and the vacuum system is fully open or partially closed

The static method means that the valve connecting the vacuum system to the measuring chamber is closed and the gas is fed into the chamber until the required pressure value of the calibration point is reached