ZHU Hu FENG, HAI-YING. 1980: CALIBRATION OF QUARTZ HORIZONTAL PENDULUM TYPE TILTMETER. Acta Seismologica Sinica, 2(3): 332-341.
Citation: ZHU Hu FENG, HAI-YING. 1980: CALIBRATION OF QUARTZ HORIZONTAL PENDULUM TYPE TILTMETER. Acta Seismologica Sinica, 2(3): 332-341.

CALIBRATION OF QUARTZ HORIZONTAL PENDULUM TYPE TILTMETER

More Information
  • Published Date: August 31, 2011
  • After briefly mentioning the principle of the quartz horizontal pendulum type tilt-meter, a method for determining the scale value C of such tiltmeters by means of a bearing plate and a flask of mercury is described. Tests show that under different cavity pressures and external loads, the characteristics of the bearing plates are linear and uniform. Two tiltmeters have been tested for different oscillation periods of the pendulum, and 11 determinations have been made for each tiltmeter. The characteristic constants of the scale values, k=CT2, are respectively K=6.158±0.031 and k=5.964±0.032. Test observations for a long time a, t the seismic station of Tai-An, Shandong Province show that earth tide can be normally recorded. The drift of the tiltmeter as obtained by taking the daily average of tiltmeter readings over one year is about 1″.
  • [1] P. Melchiar, The Earth Tides, Pregamon Press, p. 126—189, 1960.

    [2] J. Verbaandert, L'etalonnage des pendules Horizontaux, Bollettno Di Geofisicd, 4, 16, 419—446, 1962.

    [3] O. Reinkober, Die Festigkeit and Elastizitat von dünnen Quartzfäden, Physik. Zeitschr., 38, 4, 112—122, 1937.

    [4] F, H. Newman, V. H. L. Searle, The General properties of matter, Chapter 5: Elasticity, London, Edward Arnold (Publishers).

    [5] G. W. C. Kaye, The expansion and thermal hysteresis of fused silica, Phil. Mag. & J. Sci., 6th series. 20, 718—728, 1910.

    [6] Ietsune Tsubokawa. P. Melchior, Results of a Comparison of Electromagnetic Tiltmetter (TEM Type) with Quartz Pendulums (VM Type) at the European Underground Laboratory of Geodynamics of Walferdange, Journal of the Geodetic Society of Japan, 20, 4, 209—220, 1974.

    [7] P. Melchior, Current deformations of the earth's crust, Advances in Geophysics, 12, 43—76, 1967.

    [8] P. Melchior, Some problems of Tilt and Strain Measurements Philosophical Transactions of The Royal Society of London, 274, 239, 203—208, 1973.

    [9] В. Ф. Бончковский, Некоторые обобщения результатов Наблюдений Накалонов эемной поверхности. труды инстута Фиэики эемли No 7(174), 1959.

    [10] 王志东等, 河北省沙城地倾斜潮汐波的调和分析, 地球物理学报, 17, 4, 1974.
  • Related Articles

Catalog

    Article views (1105) PDF downloads (138) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return