| 一种弦频式钻孔应变仪 |
| |
| 引用本文： | 王启民,冯先水,马鸿钧.一种弦频式钻孔应变仪[J].地震学报,1983,5(3):370-376. |
| |
| 作者姓名： | 王启民 冯先水 马鸿钧 |
| |
| 作者单位： | 河南省地震局 |
| |
| 摘 要： | 本文给出3ZX——79型弦频式钻孔应变仪的性能及主要指标.其灵敏度,日稳定度、内符合精度均已达到10-9.从两年多来的连续实测资料表明,所测到的日应变固体潮大潮幅度在4——510-8;小潮幅度在2——310-8.地球表层年应变幅为10-6数量级;震前地壳应变前兆信息在10-7数量级上.从而表明:采用我国自己研制的高精度钻孔应变仪,为地球科学各项主要参数的测量研究、探索地震预报,提供了一种可能.
|
A STRING-FREQUENCY BORE-HOLE STRAIN METER |
| |
| Affiliation: | Seigmological Bureau of Henan Province |
| |
| Abstract: | The specifications of the ZX-79 string-frequency borehole strain meter are given in this paper. Its sensitivity, daily stability and coincidence accuracy are all as high as 10-9. The data observed continuously during the past two years show that the daily variations of the tidal strain due to strong and weak tide are 4-510-8 and 2-310-8 respectively. The annual variation of the strain at the surface of the earth is of order of 10-6, and the anomalous variation of the strain in the crust before an earthquake is above 10-7 order. Therefore, it would offer us a possible way to employ the sensitive borehole strain meters developed in our country for the measurement of physical parameters in earth science and earthquake prediction. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地震学报》浏览原始摘要信息 |
|
点击此处可从《地震学报》下载全文 |
|
