In structural dynamics and vibration diagnosis, accelerometer is mainly used in measuring the acceleration of vibrating structures. There are several well-known manufacturers making different kinds of accelerometers which are commercially available, and widely used in practice. It was experienced that the measured responses using Integrated Circuit Piezoelectric (ICP) type accelerometers were not reliable in many cases. Hence to verify such observations, few ICP type accelerometers of three well-known manufacturers were tested in the Laboratory and their signals were compared. Based on the test results of four different accelerometers, a calibration procedure has been suggested. © 2004 Elsevier Ltd. All rights reserved.