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一 六十年代初期,日本、苏联、美国等为了地震预报的研究,借助地球物理、计量技术、工程监测和空间技术等方面的技术成就,结合形变观测的特点,相继开展了定点形变连续观测仪器的研究。近二十年的进展,该类仪器的品种甚多,发展较快,其中有代表性的仪器为: 倾斜观测方面:水平摆倾斜仪以比利时V-M摆,VMR摆;苏联奥氏摆为代表,其灵敏度可分辨10~(-8)量级以上,零漂率可达到0.2角秒/年。水管倾斜仪以日本的磁传感浮子式和美国
In the early 1960s, Japan, the Soviet Union, the United States and other countries conducted research on earthquake prediction. Based on the technical achievements in geophysics, metrology, engineering monitoring and space technology, combined with the characteristics of deformation observation, Research. Nearly two decades of progress, many varieties of such instruments, the rapid development of a representative of the instruments: tilt observation: horizontal tilt inclinometer with Belgium Vibran, VMR swing; the Soviet Union’s Austrian pendulum as the representative, Its sensitivity can be resolved above the magnitude of 10 ~ (-8), zero drift rate can reach 0.2 arc seconds / year. Water pipe tilt meter with Japan’s magnetic sensing float and the United States