# [1]赵池航,何杰.石英振梁式重力传感器原理误差模型[J].东南大学学报(自然科学版),2009,39(4):785-789.[doi:10.3969/j.issn.1001-0505.2009.04.026] 　Zhao Chihang,He Jie.Principle error model of quartz vibrating beam gravimeter sensor[J].Journal of Southeast University (Natural Science Edition),2009,39(4):785-789.[doi:10.3969/j.issn.1001-0505.2009.04.026] 点击复制 石英振梁式重力传感器原理误差模型() 分享到： var jiathis_config = { data_track_clickback: true };

39

2009年第4期

785-789

2009-07-20

## 文章信息/Info

Title:
Principle error model of quartz vibrating beam gravimeter sensor

Author(s):
School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

TH761.5
DOI:
10.3969/j.issn.1001-0505.2009.04.026

Abstract:
The structure of the quartz vibrating beam gravimeter sensor is analyzed and the quartz vibrating beam gravimeter sensor is equivalent to the system of the moment of inertia, the stretch bearing and the damp. The transfer function and the differential frequency formula of the quartz vibrating beam gravimeter sensor under conditions of gravitational acceleration are deduced. The resonance frequency formulae of the error caused by rounding the high order terms and the differential frequency linearization are deduced. The machining error formulae of the quartz vibrating beam gravimeter sensor are deduced from the flexibility beam size, the quartz resonator size, and the mass center offset. Finally the principle error model of the quartz vibrating beam gravimeter sensor is established and the quantitative experiment is carried out. Theoretical analyses and the experimental results indicate that the error of the differential frequency linearization, the machining error of the flexibility beam size, and the quartz resonator size are the main errors, and the errors of resonance frequency calculation and mass center offset are the minor errors. The principle error magnitude is 6×10-7g and the quartz vibrating beam gravimeter sensor satisfies the precise gravity measurement of the grade of 10-6g.

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