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