Paper
4 September 2014 Real-time acquisition and preprocessing system of transient electromagnetic data based on LabVIEW
Author Affiliations +
Abstract
Transient electromagnetic method (TEM) is regarded as an everlasting issue for geological exploration. It is widely used in many research fields, such as mineral exploration, hydrogeology survey, engineering exploration and unexploded ordnance detection. The traditional measurement systems are often based on ARM、DSP or FPGA, which have not real-time display, data preprocessing and data playback functions. In order to overcome the defects, a real-time data acquisition and preprocessing system based on LabVIEW virtual instrument development platform is proposed in the paper, moreover, a calibration model is established for TEM system based on a conductivity loop. The test results demonstrated that the system can complete real-time data acquisition and system calibration. For Transmit-Loop-Receive (TLR) response, the correlation coefficient between the measured results and the calculated results is 0.987. The measured results are basically consistent with the calculated results. Through the late inversion process for TLR, the signal of underground conductor was obtained. In the complex test environment, abnormal values usually exist in the measured data. In order to solve this problem, the judgment and revision algorithm of abnormal values is proposed in the paper. The test results proved that the proposed algorithm can effectively eliminate serious disturbance signals from the measured transient electromagnetic data.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Huinan Zhao, Shuang Zhang, Lingjia Gu, and Jian Sun "Real-time acquisition and preprocessing system of transient electromagnetic data based on LabVIEW", Proc. SPIE 9215, Radiation Detectors: Systems and Applications XV, 92150G (4 September 2014); https://doi.org/10.1117/12.2060339
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Data acquisition

Electromagnetism

Calibration

Signal processing

LabVIEW

Transmission electron microscopy

Inductance

RELATED CONTENT


Back to Top