Development of a tilt measurement system based on MEMS sensor and Cortex-M3

Author

Lijie, Zhang ; Ji, Chang ; Shaozhong, Lv

Author_Institution

Coll. of Electr. Power, Inner Mongolia Univ. of Technol., Hohhot, China

Volume

2

fYear

2011

Firstpage

139

Lastpage

142

Abstract

A low-cost, low-power and small-size tilt measurement system is designed with a 3-axis MEMS accelerometer and an ARM Cortex-M3 microcontroller. In order to increase the measurement accuracy of the system, the filtering is used and a method of compensating for the accelerometer sensitivity drift with temperature is also proposed based on the temperature sensor embedded in the microcontroller. Experimental results show the tilt measurement system can update the tilt information at the speed of 100Hz, the measurement error is less than 1° and the standard deviation of the tilt angle is less than 0.13°, which has been used in a micro strapdown inertial navigation system(SINS) of some MUAV.

Keywords

accelerometers; microcontrollers; microsensors; temperature sensors; 3-axis MEMS accelerometer; ARM Cortex-M3 microcontroller; MEMS sensor; accelerometer sensitivity drift; measurement accuracy; micro strapdown inertial navigation system; temperature sensor; tilt measurement system; Accelerometers; Measurement uncertainty; Microcontrollers; Micromechanical devices; Semiconductor device measurement; Temperature measurement; Temperature sensors; Cortex-M3; MEMS; accelerometer; tilt measurement system;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-8158-3

Type

conf

DOI

10.1109/ICEMI.2011.6037783

Filename

6037783