| 摘要 |
This disclosure is an analogue-digital converting apparatus wherein a magnetic core is provided with an input winding, a variable winding in which the number of turns can be changed, a fixed winding of a constant number of turns, and the core also having a magnetic flux detecting winding, these windings being coupled to appropriate circuitry such that, as detected by the flux winding, a flux developed in the core by a current in the input winding can be balanced by current introduced in the fixed and variable windings, the latter current being displayed digitally such that its magnitude can be read with a high precision of more than 8 to 9 digits to represent the magnitude of the input current.
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