| 摘要 |
1. A fuze for detonating a projectile in proximity to a target comprising, first normally effective transceiver channel means for effecting radiation of a first electromagnetic signal into space and for receiving electromagnetic signals therefrom, including any portion of said first radiated signal reflected from a target, second transceiver channel means initially ineffective to radiate and receive a signal adapted to being rendered effective for effecting radiation of a second electromagnetic signal into space and for receiving electromagnetic signals therefrom, including any portion of said second radiated signal reflected from a target, control circuit means for rendering said second channel means effective, and normally non-operating electroresponsive detonating circuit means adapted to being rendered operating by said channel means for detonating said projectile.
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