GB/T 20485.21-2007
Methods for the calibration of vibration and shock transducers.Part 21:Vibration calibration by comparison to a reference transducer (English Version)

Standard No.

GB/T 20485.21-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 20485.21-2007

Replace

GB/T 13823.3-1992

Scope

This section describes the comparative calibration of linear vibration sensors. Although this section mainly describes the calibration method for direct comparison with an absolute calibrated reference sensor, the method can also be used between different levels in the calibration system. calibration. This part describes in detail the steps to calibrate the linear vibration sensor using the comparison method within the range of vibration frequency from 0.4 Hz to 10 kHz. It is primarily aimed at vibration measurements using standard methods under laboratory conditions with relatively small measurement uncertainties. It can also be used for measurements in field conditions where the measurement uncertainty may be large. All important sources of uncertainty will affect the calibration results, and this section also gives a method for evaluating the expanded uncertainty. It contains an estimate of the uncertainty when calibration is performed using a check standard. The environmental conditions of the comparison method calibration in this part should be consistent with the reference sensor calibration. Note: Calibration of sensors under extreme environmental conditions is covered by other standards.

GB/T 20485.21-2007 Referenced Document

• GB/T 20485.1 Methods for the calibration of vibration and shock transducers.Part 1:Basic concepts*， 2008-03-03 Update
• GB/T 20485.11-2006 Methods for the calibration of vibration and shock transducers. Part 11: Primary vibration calibration by laser interferometry
• GB/T 3240-1982 Preferred frequencies for the acoustical measurement
• ISO 2041:1990 Vibration and shock; vocabulary
• JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement

GB/T 20485.21-2007 history

• 2007 GB/T 20485.21-2007 Methods for the calibration of vibration and shock transducers.Part 21:Vibration calibration by comparison to a reference transducer
• 1992 GB/T 13823.3-1992 Methods for the calibration of vibration and shock pick-ups. Comparison (secondary vibration) calibration by sinusoidal excitation

GB/T 20485.21-2007 Methods for the calibration of vibration and shock transducers.Part 21:Vibration calibration by comparison to a reference transducer has been changed from GB/T 13823.3-1992 Methods for the calibration of vibration and shock pick-ups. Comparison (secondary vibration) calibration by sinusoidal excitation.

GB/T 20485.21-2007 -All Parts