Abstract
The measurement of the value of acceleration due to gravity (g) plays a very vital role in many industrial and research sectors. To measure the g-value, two different types of methods are studied for obtaining the precise measurement. These methods are based on the simple pendulum method and drop weight method under a controlled environment with an automatic measurement system. Both cases are evaluated under different varying input quantities, and uncertainty evaluations are performed using the Monte Carlo method. From the results obtained for the simple pendulum case, it is found that as the length of the pendulum’s string increases, the uncertainty in g-measurement decreases significantly. Similarly, for the drop weight system, the uncertainty in the measurement of g decreases up to two order with the increase in drop height of one order. Also, it is found that the drop weight system is more promising for a precise g-measurement over the simple pendulum case.