Transfer Function Compensation in Gyroscope-free Inertial Measurement Units for Accurate Angular Motion Sensing.
IEEE Sens J
; 12(5): 1207-1208, 2012 May.
Article
en En
| MEDLINE
| ID: mdl-23087597
ABSTRACT
Gyroscope-free inertial measurement units have been gaining popularity in applications such as motion sensing of hand-held microsurgical instruments. Various accelerometer placement configurations have been proposed in the past. However, the effect of non-identical transfer functions of accelerometers on the accuracy of angular motion sensing has been underestimated and never been taken into consideration. In this paper, significant effect of different phases at different accelerometer outputs due to non-identical transfer functions on the accuracy is highlighted, and a method is proposed to make the transfer functions of all the accelerometers identical. Effectiveness of the method is confirmed with an experiment using ADXL-203 accelerometers.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
IEEE Sens J
Año:
2012
Tipo del documento:
Article