Input processing system of impulsive signal

Abstract

Abstract PURPOSE:To generate and process a signal being proportional to a number of rotation by deriving the quotient obtained by dividing the number of pulses counted by a pulse counting means, by a total time counted by a pulse interval counting means, and multiplying it by a constant. CONSTITUTION:A pulse number counter 14 counts a pulse P of a period being proportional to a number of rotation of a rotary shaft 12, which is detected by a sensor 11. A timer counter 15 counts a time by a clock CLK. As for a register 16, whenever the pulse P is inputted, a count value of the timer counter 15 of that time is set, and as for a register 17, the contents of the register 16 are set as an initial value by a signal IST at every prescribed time determined in advance. An arithmetic part 18 executes an operation basing on contents t2 of the register 16, contents t1 of the register 17, and contents (n) of the pulse number counter 14, at every prescribed time determined in advance, and derives a number of revolution.

Inventors

• 👤 Yasuyoshi Asaki
• 👤 浅木　靖嘉
• 👤 Hitoshi Kasai
• 👤 仁 笠井

Bibliographic Details