Aiming at the monitoring of the internal displacement change of the geotechnical displacement in the phenomenon of geotechnical slope instability

an inclinometer based on micro-electro-mechanical system（ MEMS）acceleration sensor array is designed and manufactured. The inclinometer system consists of a control module based on STM32 and eight acceleration sensor modules with three axes. The spatial position of each unit module changes

the output of each accelerometer is transmitted to the PC through the serial port after analog-to-digital conversion

Kalman filtering algorithm and attitude analysis algorithm based on Euler angle are used to realize the tilt change of the inclinometer to be displayed in two-dimensional graphics.