Abstract
Recently, miscellaneous function generators using skillfully the characteristics of the semiconductors have been developed and the simulations of non-linear characteristics existing in the physical phenomena are developed in respect of easiness and accuracy.
However there are few instances applying the thyristor to the function generators, which are developed in the field of the electric power.
Now we tried to use the thyristors as an analogue element, and make the function generators for trial using them and investigated their applications.
Especially we applied the saw-tooth wave oscillator using thyristor and integrator to the measurement of the speed of rotating machines and favorable results are obtained.
Up to now, miscellaneous digital tachometers have been used for the measurement of steady state revolutions, but there are no satisfactory means for measurement of the changing speed, except the use of DC or AC tachometer generator connected directly to the rotating machines.
In this paper the measuring method using saw-tooth wave oscillator consists of thyristor and integrator are described. In this method, firing signal for the thyristor are received optically or electromagnetically from the rotating machines.
