Abstract
The purpose of this paper is to report the effect of the rotating velocity on the angular acceleration characteristics of the 2-phase accelerometer driven with a fluctuating velocity caused by a superposition of a constant speed rotation and a stationary sinusoidal vibration.
By using an elementary machine model, the basic equation of the performance characteristics is derived theoretically and it is shown that, in comparison with the previous paper's equation, the constant rotating speed has influences only on the rotor impedance. Then, representing this impedance by the normalized parameters such as Qi and Q0, which are composed of the vibration frequency, the rotating velocity and the rotor time constant, a general discussion on the performance characteristics is given in detail with numerical examples.
As a practical application, the alternating torque of 2-phase servomotor under an unbalanced voltage supply was measured with the test accelerometer. The experimental results was in good agreement with the calculated results.
