电容式和压力式水位仪动态标定及传输函数测定  

DYNAMICAL CALIBERATION OF CAPACITIVE AND BAROMETRIC FLUVIOGRAPHS AND THE DETERMINATION OF THEIR TRANSFER FUNCTIONS

作　　者：刘贵安[1] 谭适龄[1] 张道中 周坤根 

机构地区：[1]国家地震局地震研究所,武汉430071

出　　处：《华南地震》1993年第3期22-29,共8页South China Journal of Seismology

摘　　要：采用现代数字采样技术和仪器标定测试平台,对ORBES—89电容传感式水位仪和压力式水位仪进行了动态标定。标定信号是标定平台产生的正弦型和阶跃型水位变化。文中采用线性最小二乘拟合方法,求得了两仪器传输函数的解析表达式。分析结果表明,两台仪器在低频段内产生的相位滞后及振幅畸变均很小,在固体潮观测资料数据分析处理时可忽略不计。In this paper, a capacitive fluviograph ORBES?89 and a barometric one are dynamically caliber-ated by using the modern technique of digit acquisition and newly - developed caliberation platform. Caliberation signals are sine signal and step one which are simulated by the platform. Consequently we obtained the analytical transfer functions of two meters with a linear least squares fit. The result shows that the phase lags and amplitude distortion which were produced by two meters in low frequency waves are so small that we may neglect the effects on the water tide data.

关 键 词：水位仪 动态标定 地震观测 

分 类 号：P315.7[天文地球—地震学]