Title :
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
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);
Conference_Titel :
Industrial Control and Electronics Engineering (ICICEE), 2012 International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4673-1450-3
DOI :
10.1109/ICICEE.2012.134
