| 摘要 |
<p>PURPOSE:To fetch variation of a voltage as variation of the transmission quantity of light, by using a photoelectric converting element such as Bi12SiO20 being a voltage-optical sensor, when detecting the voltage of an insulated wire. CONSTITUTION:An electrode plate 2 is made to tightly adhere to a part of the circumference of an insulator of an insulated wire 1. This electrode plate 2 is coupled with the primary electrode of a voltage divider 3, the secondary electrode and the tertiary electrode of the voltage divider 3 are connected to a sensor 4 of a photoelectric converting element 6, and a variation of voltage is fetched as a variation of the quantity of light. Said voltage divider 3 is formed by the primary electrode for high voltage 31, the secondary electrode for ground 32 and the tertiary electrode for voltage division 33, and these electrodes 31- 33 are plate-like electrodes and are placed in parallel with each other. Also, to the secondary electrode 32, a hollow pipe is connected, a metallic rod insulated from the hollow pipe is made to pass through this hollow pipe, and this rod is connected to the tertiary electrode 33. In this way, voltage of an electric conductor can be detected and measured from the outside of the covering of the insulated wire 1.</p> |
