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Accelerometers are sensing transducers that provide an output proportional to acceleration, vibration1 and shock. These sensors have various applications in research and development arenas and everyday use. In addition to the technical test and measurement applications, such as modal analysis, NVH (noise vibration and harshness), and package testing, accelerometers are also used in everyday devices such as airbag sensors and automotive security alarms. Whenever a structure moves, it experiences acceleration. Measurement of this acceleration helps us better understand the dynamic characteristics that govern the object's behaviour. Modelling the behaviour of a structure provides a valuable technical tool that can then be used to modify the response, enhance ruggedness, improve durability or reduce the associated noise and vibration. The most popular class of accelerometers is the piezoelectric accelerometer. This type of sensor can measure a wide range of dynamic events. However, many other accelerometers measure constant or low-frequency acceleration, such as automobile braking, elevator ride quality and even the earth's gravitational pull. Such accelerometers rely on piezoresistive, capacitive and servo technologies