BS ISO 16063-42:2014
$102.76
Methods for the calibration of vibration and shock transducers – Calibration of seismometers with high accuracy using acceleration of gravity
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 20 |
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:
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measurement and observation for the earth science including geophysics usage;
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measurement and observation for disaster prevention, such as detecting the precursor of a land slide;
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diagnosis for the soundness of a building structure and foundation soil in civil engineering;
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observation for nuclear-test detection.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 9 | Section sec_1 Section sec_2 Section sec_3 1 Scope 2 Normative references 3 Traceability of measurement |
| 10 | Section sec_4 Section sec_4.1 Section sec_4.2 Section sec_4.3 Section sec_5 Section sec_5.1 Section sec_5.2 Section sec_5.3 4 Determination of local gravity 4.1 Method using absolute gravimeter 4.2 Method using gravitational acceleration standardization network and relative gravimeter 4.3 Method using gravitational acceleration standardization network 5 Requirements for apparatus and environmental conditions 5.1 Calibration environment 5.2 Base and vibration environment (seismic block for calibration apparatus) 5.3 Voltage-measuring instrumentation |
| 11 | Section sec_5.4 Section sec_5.5 Section sec_5.6 Section sec_6 Section sec_6.1 Table tab_a Figure fig_1 5.4 Tuneable low-pass filter 5.5 Power supply 5.6 Tilt table 6 Method 6.1 Calibration principle |
| 12 | Table tab_b Figure fig_2 |
| 13 | Section sec_6.2 6.2 Calibration procedure |
| 14 | Section sec_7 7 Expression of results |
| 15 | Annex sec_A Table tab_A.1 Annex A (normative) Expression of uncertainty of measurement in calibration |
| 16 | Annex sec_B Figure fig_B.1 Annex B (informative) Traceability of calibration measurement of seismometer |
| 17 | Reference ref_1 Reference ref_2 Reference ref_3 Reference ref_4 Reference ref_5 Bibliography |
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ISO 16063-42:2014
Methods for the calibration of vibration and shock transducers — Part 42: Calibration of seismometers…
