The paper deals with the optimization of lever-segment gear-pinion mechanisms used in the construction of Bourdon gage manometers. The number of teeth of the pinion (which is rigidly attached to the manometer hand) is used as an objective function in order to maximize accuracy. Design variables are the gear-pinion center distance and center line inclination and various constraints are imposed in order to satisfy operating conditions and constructive limits. An example is presented showing that the objective function is maximized by the highest feasible value of the center distance and is less sensitive to variations of the center line inclination.

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