| 摘要 |
PURPOSE:To enable automatic stopping the unbalanced position of a sample at the home position, by arranging a pulse generator engaged with a rotary driving mechanism, a specific part detection sensor, a waveform shaping circuit, an FF and the like. CONSTITUTION:A pulse signal is generated at each rotation of a part of a rotary driving mechanism 3 to make a rotary pulse signal, one pulse-like signal is generated at each rotation of a sample to make an angle reference signal and moreover, a pulse-like signal is formed as synchronizing an unbalance signal in the balance testing based on the specified relationship with the signal to make an unbalance phase signal. Then, a counter 15L counts a rotary pulse signal generated to the generation of the unbalance phase signal from the generation of the angle reference signal during the test rotation of the sample to be memorized into a memory 16L and then, the revolutions of the sample are reduced to the stop revolutions at a low speed from the test revolutions and under such a condition, when the number of the rotary pulse signal generated after the generation of the angle reference signal reaches a specified relation with the memory contents, the sample is stopped. |
