An impronved tuning fork clock

Abstract

In this paper, a tuning fork clock having smaller cost. more stable accuracy and longe life than a conventional movement is studied. Generally, a tuning fork clock movement is more costly compared with a movement having a balance wheel and this is the greatest problem to be overcome for a tuning fork movement. The tuning fork movement in the experiment has been confirmed to have very simple construction. consequently reduced parts and has four times output torque of an average balance movement on the second hand by a same current consumption. and also the stability of time keeping depends on the variation of gear friction supposed to be very small. The experiment has brought about possibility of a tuning fork movement which has the cost as small as the one of a conventional balance movement, a higher stability and longer life.