Control of an electronic clock, with a Foucault pendulum, has one or more sensors to register the pendulum body for a microprocessor to compute a time cycle for the clock control

摘要

To control an electronic clock, with a Foucault pendulum, the rotation time of the pendulum for 180[deg] or 360[deg] according to the width of its location is measured by a sensor. A microprocessor calculates a cycle for the clock control, which controls the clock to this time cycle. Several sensors can be used as optical sensors detecting a miniature reflector at the pendulum base or they are magnetic sensors.