Effect of detected space distribution for magnetic induction measurement system

Y. Fu, C. Tan, X. Li, F. Dong

Tianjin Key Laboratory of Process Measurement and Control

School of Electrical Engineering and Automation, Tianjin University, Tianjin, 300072, China

Abstract

A prototype EMT system was designed that the operation frequency varying from 500 KHz to 10MHz. The system utilizes NI PXI-5105 board to collect the high frequency signal directly, which could guarantee the detection accuracy and simplifies the complexity of hardware. Based on the prototype EMT system, the salt solution with different conductivities was used as detection object and conducts a series of relevant experiments. Discuss the effects caused by the different space distributions of the object field. It makes solid foundation for the system developing and optimization in future.

Keywords: Electromagnetic tomography; Low conductivity; Frequency; Object field distribution; Phase detection.