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.

重力加速度 (g) 值的测量在许多工业和研究部门中起着非常重要的作用。为了测量 g 值，研究了两种不同类型的方法来获得精确的测量值。这些方法基于简单的摆锤法和落锤法，在受控环境下使用自动测量系统。两种情况都在不同的输入量下进行评估，并且使用蒙特卡罗方法进行不确定性评估。从单摆情况下获得的结果可以发现，随着摆线长度的增加，g 测量的不确定性显着降低。类似地，对于落锤系统，g 测量的不确定性随着跌落高度增加一阶而降低至二阶。还，