标准编号：ISO 16063-42:2014
中文名称：振动和冲击变换器的校准方法 第42部分：带高精度重力加速器的地震仪的校准
英文名称：Methods for the calibration of vibration and shock transducers — Part 42: Calibration of seismometers with high accuracy using acceleration of gravity
发布日期：2014-07
标准范围
This part of ISO 16063 specifies the instrumentation and procedure to be used for the accuratecalibration 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 bandwidthfrom 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 is10?6 m/s2 (0,1 mGal). When the absolute gravimeter described in this part of ISO 16063 is used, theuncertainty of applied acceleration can be suppressed to 5 × 10?8 m/s2 (5 μGal). The relative expandeduncertainty 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;b) measurement and observation for disaster prevention, such as detecting the precursor of a landslide;c) diagnosis for the soundness of a building structure and foundation soil in civil engineering;d) observation for nuclear-test detection.
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