Optimization design of alternating current field measurement inducer

Subtitle:

Article type: Research Article

Authors: Zheng, Wenpei^{a; *} | Zhang, Laibin^a | Su, Yinao^b | Fang, Taian^b

Affiliations: [a] China University of Petroleum-Beijing, Changping, Beijing, China | [b] CNPC Drilling Research Institute, Block A34 CNPC Innovation Centre, Changping, Beijing, China

Correspondence: [*] Corresponding author: Wenpei Zheng, China University of Petroleum-Beijing, 18 Fuxue Road, Changping, Beijing 102249, China. Tel.: +86 13811419052; E-mail:zhengwenpei@cup.edu.cn

Abstract: Optimization design of alternating current field measurement inducer is done by means of experiments. Two kinds of magnetic inducers, twin coil inducer and U-shaped inducer are designed and a number of experiments are conducted to study influencing parameters of magnetic inducer to the perturbed magnetic field above the crack. Based on the experimental results, the optimization design of magnetic inducer is accomplished. Then quantitative detection performance and detection capacity of the optimized probe is determined by detection experiments on a serious of cracks of different dimentions. The results show that the optimized probe has the capacity of detecting cracks as small as 3 mm in length.

Keywords: Optimization design, ACFM, magnetic inducer

DOI: 10.3233/JAE-150024

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 49, no. 1, pp. 133-143, 2015