Calibration verification of a low-cost method for MEMS accelerometers. (July 2014)

• Record Type: Journal Article
• Authors: Parsi, B; Bahrami, M; Esfahani, A Monemian; Sany, B Seyedzadeh
• Is Part Of: Transactions of the Institute of Measurement and Control. Volume 36:Number 5(2014)
• Page Start: 579
• Page End: 587
• Publication Date: 2014-07
• Subjects: Bias vector -- calibration -- MEMS accelerometers -- scale factor -- sensitivity matrix -- three-axis table; Automatic control -- Periodicals; Measuring instruments -- Periodicals; Commande automatique -- Périodiques; Mesure -- Instruments -- Périodiques; 681.2
• DOI: 10.1177/0142331213513607
• Languages: English
• ISSNs: 0142-3312

Abstract

This paper presents a new low-cost method for calibration of microelectromechanical system accelerometers. A guide way with low friction that can provide a one-directional linear transversal motion is used. For collecting data sets, the accelerometer is moved manually from one reference point to another, and this movement is measured. A function is developed that relates this movement to acceleration. To verify the proposed calibration method, a three-axis table is used to collect data sets and a least-squares algorithm is applied to find the appropriate function. With this low-cost method, the scale factor matrix, the sensitivity matrix, the non-linear scale factor matrix and bias vector are found.