Calibration of machine vibration meters
Calibration of machine vibration meters is necessary for accredited measurements to maintain measurement consistency.
Calibration of machine vibration meters is necessary for accredited measurements to maintain measurement consistency.
Machinery vibration meters are mainly used for vibration testing in industrial settings. These meters do not need to be as precisely controlled as meters for vibrations affecting humans. Such meters can be used to test vibrations generated by machinery on construction sites or other vibrations generated into the environment. Calibration of machine vibration meters is necessary for accredited measurements to maintain measurement consistency. In addition, with the results of calibration, it is possible to accurately determine the tested vibration values, since the error introduced by the measurement path is known.
At the SVANTEK calibration laboratory, the calibration of a machine vibration meter consists of the calibration of the transducer attached to the meter supplied. Transducers are calibrated using the comparison method in accordance with ISO 16063-21:2003 “Methods for the calibration of vibration and shock transducers – Part 21: Vibration calibration by comparison to a reference transducer”. And in the next step, the error of the meter with the transducer attached is determined.
During calibration , the sensitivity of the vibration transducer attached to the machine vibration meter is determined, and then the error of the meter with the transducer is determined for the selected frequency. The SVANTEK calibration laboratory calibrates these sets in the range from 0.5 Hz to 2000 Hz.
The first page of the calibration certificate provides information about the ordering client, the meteorological conditions in the laboratory during the measurement, the measurement method and the date of the measurement. The remaining pages of the document show the sensitivities of the transducer for the selected frequencies and the errors of the transducer with the meter also for the frequencies selected by the customer.
Calibration of mechanical vibration meters can take from one to several working days. This time depends on the number of transducer axes and the frequencies for which calibration is to be performed. Usually such calibration is performed for those frequencies that the meter is to measure ultimately. The SVANTEK calibration laboratory, in addition to vibration meters manufactured by SVANTEK, also calibrates meters from other manufacturers.
The price of calibrating a machine vibration meter may vary depending on the number of frequencies to be calibrated and the number of axes of the transducer under test.
The user of the vibration meter should calibrate the measurement path before the measurement and after the measurement. A mechanical vibration calibrator with known parameters is required for calibration .
