Yuan M., Dong S.
School of Automation Science and Electrical Engineering, Beihang University, Beijing, 100083, China
Abstract:
The growing requirement on a high precision, small volume and low cost inclinometer in the field of coal-bed logging needs further research on the inclinometer. This paper introduces the inclinometer based on the theory of gravitational field measurement and geomagnetic field measurement, and then brings forward a new scheme based on tilt sensor and magnetoresistive sensor. In this paper, the formulas for vertex angle and azimuth angle are deduced; an inclinometer prototype based on the two sensors is designed. Furthermore, the sensor calibration is completed; the characteristic equations of the sensors are built; and the real time measurement for the vertex angle and azimuth angle is implemented. In order to compensate for the rotation error of the probe, a compensation method which using the average value of the positive order and negative order sampled data is described; in order to eliminate the dithering problem of the measure data, a limit range filtering algorithm is applied. The specifications of the prototype described in the article are: an external diameter of 40mm, a vertex angle precision of up to 0.1 degree and an azimuth angle precision of up to 2.5 degree. The performance of the prototype is guaranteed in practical engineering application.
Author Keywords:
Azimuth angle; Compensation; Inclinometer; Rotation error; Vertex angle
Year:
2006
Source title:
Proceedings of SPIE - The International Society for Optical Engineering
Volume:
6358 I
Art. No.:
63581D
Link:
Scorpus Link
Document Type:
Conference Paper
Source:
Scopus
Authors with affiliations:
-
Yuan, M., School of Automation Science and Electrical Engineering, Beihang University, Beijing, 100083, China
-
Dong, S., School of Automation Science and Electrical Engineering, Beihang University, Beijing, 100083, China
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