| 摘要 |
A device for reading out information from profiled metal carrier comprises first reading inductive element, arranged above carrier surface, which finish of winding is connected through series-connected first phase detector and reading signal conditioners to one of inputs of AND gates connected through decoding device to data processing unit, second and third reading inductive elements, arranged coaxially in the plane of two side faces of carrier, which starts of windings are connected in series opposition and finishes are connected to second phase detector connected through reading signal conditioners to other inputs of AND gates, fourth and fifth reading inductive elements displaced on both sides of first inductive reading element by distance equal to quarter width of writing head core. Finishes of windings of fourth and fifth reading inductive element are connected together and starts thereof through amplitude detector, threshold element and NOT gate are connected to third inputs of AND gates. Additional sixth and seventh reading inductive elements are used, those are arranged along the side faces of profiled metal carrier coaxially with the first reading inductive element. Windings of additional reading inductive elements are connected in series opposition, finish of winding of sixth inductive element and start of winding of first one are connected together, and finish of winding of the seventh inductive reading element is connected to the second input of first phase detector. |
