Methods for the calibration of vibration and shock transducers — Part 42: Calibration of seismometers with high accuracy using acceleration of gravity
使用重力加速度以高精度地震仪的校准:第42部分 - 方法振动与冲击传感器的校准
发布日期:
2014-07-04
ISO 16063-42:2014规定了使用局部重力加速度(局部地球重力;由于地球重力引起的加速度的局部值)作为参考值来精确校准地震仪灵敏度的仪器和程序。
它通常旨在应用于具有/不具有速度输出的伺服型加速度计,其通常具有带宽从0,003 Hz到100Hz的宽带地震仪类别中的质量位置输出。指定的方法使用户能够获得高达10?5 m/s2(对应于1 mGal和大约1 ppm的重力加速度)。
要应用的地震仪的预期最终用途是:a)地球科学的测量和观测,包括地球物理学的使用;b)用于预防灾害的测量和观察,例如探测滑坡的前兆;c)土木工程中建筑结构和地基土的完整性诊断;d)核试验探测观察。
ISO 16063-42:2014 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 intended end-usage of the seismometer to be applied is: 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 land slide; c) diagnosis for the soundness of a building structure and foundation soil in civil engineering; d) observation for nuclear-test detection.