| 摘要 |
PURPOSE:To enhance both the maintenance and the reliability for the transmission device by cutting off and transmitting the light which transmits through the optical fiber in accordance with the revolution number of the strobe and transmitting the analog quantity proportional to the strobe revolution number. CONSTITUTION:Strobe 5 is provided in the gap of optical fiber transmission line 2 to cut off and transmit the light passing through optical fiber 2 in accordance to the revolution number of strobe 5. Thus, the frequency modulation is given to light source 1 to transmit the analog quantity proportional to the revolution number of strobe 5. As a result, both the maintenance and the reliability can be enhanced for the transmission device. |
