DRIVING CONTROLLER FOR ASTRONOMICAL TELESCOPE

PURPOSE:To make the outside shape-smaller in size, by using a microcomputer and a pulse motor to control the driving of an astronomical telescope. CONSTITUTION:A microcomputer 11 consists of a CPU12 for execution of various operation processings, a memory consisting of ROMs and RAMs for storage of various data, an input interface 15 for a keyboard 14, a display dvice 16 for display of various data, a display controlling part 17 for control of the display device 16, a bus line 18, etc., and program data inputted through the keyboard 14 preliminarily is stored in the memory 13. An operating part 21 is operated to give optional data from the CPU12 to voltage control oscillating circuits in a right ascension shaft driving controlling part 19 and a declination shaft driving controlling part 20. When this data is given, the voltage control oscillating circuit in the right ascension shaft driving controlling part 19 generates the pulse signal of a period corresponding to this data for a prescribed time,and an up/down counter is operated by this pulse signal. The counted value of this counter is given to the other input side of a full adder 33. Then, a right ascension shaft 2 is driven to turn at a prescribed angle in a speed higher than that in the sidereal hour operation. When the direction to which a barrel 1 is directed coincides with the angle of a desired star, the high-speed operation is returned to the sidereal hour operation. A declination shaft 3 is driven to turn and is stopped.