| 摘要 |
<p>PURPOSE:To detect a DC effectively and to perform various controls by winding a lead wire around an iron core, detecting magnetic flux generated in response to the current with a magnetism detecting part, and supplying an operating signal into a part to be controlled with an operating part which is connected to said detecting part. CONSTITUTION:A lead wire is wound around an iron core, and a current- magnetism transducer part 10 is formed. Magnetic flux which is generated when a current flows through the current-magnetism transducer part 10 is detected with a magnetism detecting part 20 which is arranged in the vicinity of the iron core. One terminal thereof is connected to a control current 40. ON/OFF control or proportional control is performed for the current from the control current 40. The other terminal of the part 20 is connected to an operation control part 30 which is operated in response to the operation of said detecting part 20 and generates an operating signal. In this way, a high- performance DC detecting apparatus which effectively utilizes the magnetic field caused by the DC with a simple constitution and to perform various controls based on the magnetic field can be obtained.</p> |
