Calibrating accelerometer sensor on android phone with Accelerograph TDL 303 QS for earthquake online recorder

8th International Conference on Physics and its Applications

Riantana, R.^1 ; Darsono, D.^1 ; Triyono, A.^2 ; Azimut, H.B.^1

Physics Department, Sebelas Maret University, Indonesia^1

Geophysics Station of BMKG, Yogyakarta, Indonesia^2

关键词: Accelerometer sensor;    Android phones;    Maximum amplitude;    Peak ground acceleration;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012116/pdf
DOI  :  10.1088/1742-6596/776/1/012116

来源: IOP

【 摘 要 】

Calibration of the android censor was done by placing the device in a mounting at side of accelerograph TDL 303 QS that will be a means of comparison. Leveling of both devices was set same, so that the state of the device can be assumed same anyway. Then applied vibrations in order to have the maximum amplitude value of both censor, so it can be found equality of the coefficient of proportionality both of them. The results on both devices obtain the Peak Ground Acceleration (PGA) as follows, on the x axis (EW) android censor is obtained PGA -2.4478145 gal than at TDL 303 QS obtained PGA -2.5504 gal, the y-axis (NS) on the censor android obtained PGA 3.0066964 gal than at TDL 303 QS obtained PGA 3.2073 gal, the z-axis (UD) on the android censor obtained PGA -14.0702377 gal than at TDL 303 QS obtained PGA -13.2927 gal, A correction value for android accelerometer censor is ±0.1 gal for the x-axis (EW), ±0.2 gal for the y-axis (NS), and ±0.7 gal for the z-axis (UD).