Research on direct digital process of inductance sensor

WANG Xuan-ze, YANG Lian-gen, ZHONG Yu-ning

Front. Mech. Eng. ›› 2006, Vol. 1 ›› Issue (3) : 317-322.

PDF(462 KB)
PDF(462 KB)
Front. Mech. Eng. ›› 2006, Vol. 1 ›› Issue (3) : 317-322. DOI: 10.1007/s11465-006-0023-1

Research on direct digital process of inductance sensor

  • WANG Xuan-ze, YANG Lian-gen, ZHONG Yu-ning
Author information +
History +

Abstract

The equivalent circuit of inductance sensor is analyzed. Amplitude-displacement and phase-displacement equations are deduced for non-ideal carrier wave and inductance parameters. Simulation computation shows the corresponding digital curves. Considering that the traditional process method is an approximate one, a new method is presented to simultaneously obtain the amplitude and phase of output signal of sensor by simultaneity A/D and ellipse fit arithmetic. According to the characteristic of the amplitude-displacement and phase-displacement curves, we obtain displacement by phase and amplitude respectively when the sensor is close to the zero point position and away from other positions on the basis of the experiment. The experiment showed that this method can improve precision of measurement, and it can also work for the whole linear range of sensors even if the magnification is very high.

Cite this article

Download citation ▾
WANG Xuan-ze, YANG Lian-gen, ZHONG Yu-ning. Research on direct digital process of inductance sensor. Front. Mech. Eng., 2006, 1(3): 317‒322 https://doi.org/10.1007/s11465-006-0023-1
AI Summary AI Mindmap
PDF(462 KB)

Accesses

Citations

Detail

Sections
Recommended

/