| 摘要 |
Current measuring apparatus for determining the strength of the current in an electric conductor. The apparatus comprises an actuating coil, a magnetic switch positioned within the composite magnetic field produced by the currents flowing through the conductor and the actuating coil, generating means coupled to the actuating coil for providing an increasing exciting current or an increasing step-wise voltage thereto, and measuring apparatus coupled to the magnetic switch for determining the instant at which the switch changes from one state to the other under the influence of the composite magnetic field. The current through the actuating coil at the instant that the switch changes states corresponds to the magnitude of the current through the electric conductor. The apparatus may be used in conjunction with the operation of electrolytic cells having large numbers of anodes wherein it is useful to know the current flowing through each anode. |
