Vibration detection device for micro-variation capacitance pole tower

The utility model relates to a vibration detection device used for a micro-variation capacitance pole tower, which realizes the detection of the vibration magnitude and the angle offset by mainly using the variation in capacitance due to the relative displacement of the parallel-plate capacitor and further achieves the purpose of vibration detection to the pole tower. The vibration detection device comprises a power supply circuit, a capacitive transduction module bound on the pole tower, a square-wave excitation source, a single-chip microcomputer, a PCI interface and a PC machine; and an information processor performs processing to the original signal, then the angle vibrating data is connected with a main system by using the PCI interface, and the vibration detection of the pole tower is further realized. The provided method can be used for detecting the vibration conditions of the pole tower, and the vibration detection device has the advantages of low power loss, high sensitivity and simple structure.