Details

Autor(en) / Beteiligte

• Guo, Tao
• Cheng, Weibin
• Zhang, Yifei
• Chen, Wenhui
• Liu, Xiangzheng
• Chen, Xuefei

Titel

Azimuth calibration based on equal angle balance correction algorithm for measurement-while-drilling system

Ist Teil von

• Measurement : journal of the International Measurement Confederation, 2024-01, Vol.224, p.113891, Article 113891

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •Correction matrix error ignored in the error model causes significant azimuth errors.•EABC algorithm effectively reduces system errors, including Correction matrix errors.•EABC method avoids complex iterative calculations, ensuring real-time performance. The precision of azimuth calculation in measurement-while-drilling systems is heavily reliant on the triaxial magnetometer, necessitating proper calibration to minimize azimuth errors. To address the need for high-precision calibration of systematic errors such as sensor scale factors, bias, and non-orthogonality, a relationship between the error model and the correction matrix is derived and a novel equal angle balance correction method to calibrate azimuth is proposed. Experimental results demonstrate that the mean azimuth error generated by this algorithm is less than 0.00624°, which is at least 28 times lower than that of the ellipsoid fitting correction method. The algorithm effectively eliminates systematic errors and meets the practical engineering requirements for azimuth calibration in measurement-while-drilling systems.