| 摘要 |
FIELD: closing devices. ^ SUBSTANCE: the code lock has a code device kept on the container, the code device includes ferreed contacts cut in the control circuit of the electromechanical closing device, magnetic key made in the form of a unit of magnets isolated from one another, master oscillator, modulating code generator, phase manipulator and a power amplifier via the make contacts of the relay of the alarm system are connected to the power source, on the master station provided are series-connected receiving antenna, high-frequency amplifier, phase doubler, whose second input is connected to the output of a narrow-band filter, and a recording unit, as well as a phase-of-two divider connected to the output of the phase doubler. The lock is provided with phase shifters and additional phase detectors. ^ EFFECT: enhanced noise immunity. ^ 2 dwg |
