TY  - JOUR
ID  - SisLab3012
UR  - https://www.sciencedirect.com/science/article/pii/S0924424718300864
A1  - Dau, Van Thanh
A1  - Dinh, Thien Xuan
A1  - Dang, Lam Bao
A1  - Tran, Canh-Dung
A1  - Bui, Thanh Tung
A1  - Phan, Hoa Thanh
Y1  - 2018/06//
N2  - In this paper, we report the details and findings of a study on tri-axis convective accelerometer, which is designed with the closed-loop type heat source and thermal sensing hotwire elements. The closed-loop heat source enhances the convective flow to the central part where a hotwire is placed to measure the vertical component of acceleration. The simulation was conducted using numerical analysis, and the device was prototyped by additive manufacturing. The device, functioning as a tilt sensor and an accelerometer, was tested up to acceleration of 20 g. The experiments were successfully conducted and the experimental results agreed reasonably with those obtained by numerical analysis. The results demonstrated that the closed-loop heat source could reduce the cross effect between the acceleration components. The scale factor and cross-sensitivity had the values of 0.26 uV/g and 1.2%, respectively. The cross-sensitivity and the effects of heating power were also investigated in this study.
PB  - Elsevier
JF  - Sensors and Actuators A: Physical
VL  - 275
KW  - OpenFOAM
KW  -  Closed-loop heater
KW  -  Convective accelerometer
KW  -  Hotwire
KW  -  Tri-axis
SN  - 0924-4247
TI  - Tri-axis convective accelerometer with closed-loop heat source
SP  - 51
AV  - none
EP  - 59
ER  -