| 摘要 |
PURPOSE:To prevent malfunction of a pulse transmitter due to shock by providing a damping means to a turning slit disc so as to prevent coasting due to a force of inertia of the turning slit disc. CONSTITUTION:A casing 2 of a pulse oscillator 1 consists of main body 3 and a cover 4. The turning slit disc 20 is fitted to a shaft 80. The turning slit disc 20 is supported so as to be turned freely attended with the turning of the shaft 8 in the casing 2. Even when the turning of the shaft 8 is stopped, a suppression plate spring 21 as a damping means is provided so as to avoid coating of the turning slit disc and the shaft 8 because of the force of inertia of the turning slit disc 20. An illuminant body 5 is provided in the cover 4 and a photodetector 6 is provided in the main body 3. |
