Vibration optical cable can use ordinary multimode optical fiber on the detection medium, but the technology of the collector itself is relatively high, the cost of the collector is relatively expensive, and the detection medium, that is, optical fiber, is relatively cheap.
The electronic integration of vibrating cable collector is lower than that of vibrating optical fiber collector, which is completely different from the optical fiber in the detection medium, that is, vibrating cable. Vibration cable itself is a special kind of cable, which consists of three layers and five cores, and there are two magnetic strips inside. In short, electromagnetism is the basis of detecting vibration of vibrating cable. And such a special optical cable, in terms of price, is about ten times more expensive than optical fiber per meter.
Therefore, the use range of optical fiber is often very wide, and the requirements for the defense zone are not particularly fine peripheral environment; And the division of defense zones is flexible. Vibration cable and vibration optical fiber do not need independent power supply, but supply power to the collector (detection host) and connect the detection medium to the collector.
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