An Optimal Transfer Characteristic of an Air Cored Transient Electromagnetic Sensor

Author

Xingyu, Chu ; Shuang, Zhang ; Shudong, Chen

Author_Institution

Coll. of Electron. Sci. & Eng., Jilin Univ. Changchun, Changchun, China

fYear

2012

Firstpage

482

Lastpage

485

Abstract

The design of a single component air cored time-domain electromagnetic (TEM) sensor with 34 kHz resonant frequency and 2000 m2 effective receiver areas for airborne exploration is described. A detailed fabrication process including coil making and coil shielding is presented. A center-tapped differential coil with a double layer shield is used to suppress environmental electric noise. Optimal linear transmission characteristics are obtained when damping resistance equals 1.2 times critical damping resistance.

Keywords

coils; damping; electromagnetic devices; interference suppression; magnetic cores; magnetic sensors; TEM sensor; air cored transient electromagnetic sensor; center-tapped differential coil; coil making; coil shielding; critical damping resistance; detailed fabrication process; double layer shield; environmental electric noise suppression; optimal linear transmission characteristics; optimal transfer characteristic; single component air cored time-domain electromagnetic sensor; Bandwidth; Capacitance; Coils; Damping; Noise; Transfer functions; air cored coil; coil shield; damping resistance; sensitivity; transient electromagnetic (TEM);

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Control and Electronics Engineering (ICICEE), 2012 International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4673-1450-3

Type

conf

DOI

10.1109/ICICEE.2012.134

Filename

6322423