| 摘要 |
<p>PURPOSE:To reduce influence of a casing in the case of mounting without necessity of an electromagnetic field of a high level between a transmitting coil and a receiving coil, to prevent an erroneous operation, to accurately detect a target article approaching a moving body and to send an initiating timing signal at an optimum timing in a magnetic operation type proximity fuse device. CONSTITUTION:A signal C2 delayed from an encoded two-phase random signal C1 is code-modulated by using a signal F having a predetermined frequency, a high frequency magnetic field is distributed-radiated into the air by its modulation signal M1, and a coded modulation signal M2 is inducted by an interference induced magnetic field generated by an eddy current Ir flowing on a surface S of a metal part of a target article 30 by the high frequency magnetic field. Further, it is distributed to two signals, signals C2, C1 are correlation- demodulated, and an ignition of ammunition of a warhead is designated based on comparison of this result with a threshold level set in response to electromagnetic environments in side/and out side/this proximity fuse device.</p> |
