System and method for centering circular object

The present disclosure describes systems and methods for centering a circular object. Systems and methods for centering a circular object, such as a petri dish, between a plurality of pins are disclosed. For example, in one embodiment, a method includes placing a circular object on a rotatable platform surrounded by three movable pins. To generally center the circular object, the method further includes moving all the pins toward the circular object a first time until at least two of the three pins are in contact with the circular object. To more accurately center the circular object, the method further comprises moving all the pins away from the circular object such that they can rotate without substantial interference; rotating the platform by about 60 degrees, wherein rotating the platform causes the circular object to also rotate by about 60 degrees; and moving all the pins towards the circular object a second time. 本公开描述了用于使圆形物体居中的系统和方法，公开了用于将诸如培养皿的圆形物体居中在多个销之间的系统和方法。例如，在一个实施例中，方法包括将圆形物体放置在由三个可移动销包围的可旋转平