| 摘要 |
<p>PURPOSE: To let a current/voltage converter have a little dimension and to integrate it into a device at any arbitrary position without any problem. CONSTITUTION: A ring-shaped holder 13, which can be fixed inside a metal capsule 7, effective for holding a current/voltage sensor is provided, the current sensor held by the holder 13 is made into coil 14 wound in the form of tourus, and the voltage sensor held by the holder 13 is formed as a hollow cylindrical measuring electrode 15. Such a current/voltage converter has a little radial dimension while having a rectangular cross section in comparison with the radius and axial extension of core body 29 by making the coil 14 into Rogowskii coil, winding that coil on the ring-shaped core body 29 composed of ferromagnetic materials and axially cutting this coil. The coil 14 is located inside a hollow cylinder-shaped space 19 shielded from electric fields and a boundary wall to be operated as its electric shield is formed so as to be at the potential of metal capsule 7 after assembly.</p> |
