ISO 16063-42:2014
Methods for the calibration of vibration and shock transducers - Part 42: Calibration of seismometers with high accuracy using acceleration of gravity

Standard No.

ISO 16063-42:2014

Release Date

2014

Published By

International Organization for Standardization (ISO)

Latest

ISO 16063-42:2014

Scope

This part of ISO 16063 specifies the instrumentation and procedure to be used for the accurate calibration of seismometer sensitivity using local gravitational acceleration (local Earth’s gravitation; local value for the acceleration due to the Earth’s gravity) as a reference value. It is intended generally to be applied to a servo-type accelerometer with/without a velocity output, which usually has a mass position output in the category of a wide-band seismometer with a bandwidth from 0,003 Hz to 100 Hz. The method specified enables the user to obtain static sensitivity for the seismometers up to 10−5 m/s2 (which corresponds to 1 mGal and approximately 1 ppm of the gravitational acceleration). The combined and expanded (k = 2) uncertainty of applied acceleration achieved by this method is 10−6 m/s2 (0,1 mGal). When the absolute gravimeter described in this part of ISO 16063 is used, the uncertainty of applied acceleration can be suppressed to 5 × 10−8 m/s2 (5 μGal). The relative expanded uncertainty of calibration, excluding the uncertainty due to the device under test (DUT), is 0,5 %. The intended end-usage of the seismometer to be applied is as follows: a) measurement and observation for the earth science including geophysics usage; c) diagnosis for the soundness of a building structure and foundation soil in civil engineering; b) measurement and observation for disaster prevention, such as detecting the precursor of a land slide; d) observation for nuclear-test detection.

ISO 16063-42:2014 Referenced Document

• ISO 16063-1:1998 Methods for the calibration of vibration and shock transducers - Part 1: Basic concepts
• ISO 2041:2009 Mechanical vibration, shock and condition monitoring - Vocabulary
• ISO 5347-5:1993 Methods for the calibration of vibration and shock pick-ups; part 5: calibration by earth's gravitation
• ISO 8042:1988 Shock and vibration measurements; characteristics to be specified for seismic pick-ups
• ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

ISO 16063-42:2014 history

• 2014 ISO 16063-42:2014 Methods for the calibration of vibration and shock transducers - Part 42: Calibration of seismometers with high accuracy using acceleration of gravity