System Design of Nonideal Fourth-Order Sigma-Delta Micromachined Accelerometer

Abstract:

Article Preview

The paper describes the system design for a nonideal capacitive micromichined accelerometer in MATLAB/SIMULINK. In this paper, a fourth-order sigma-delta micromachined accelerometer system design is represented, which includes the electrode movement and circuit noise. By simulation and comparison with the ideal 4th-order sigma-delta accelerometer in MATLAB, we have found that the SNR is essentially influenced by the electrode movement. Moreover the influence of the electrode stiffness Ke is researched. We have also researched the effects of the kT/C noise and the front-end amplifier noise. This nonideal accelerometer system can represent more accurate simulation result.

Info:

Periodical:

Edited by:

Xiaohao Wang

Pages:

219-223

DOI:

10.4028/www.scientific.net/KEM.483.219

Citation:

X. W. Liu et al., "System Design of Nonideal Fourth-Order Sigma-Delta Micromachined Accelerometer", Key Engineering Materials, Vol. 483, pp. 219-223, 2011

Online since:

June 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.