DESTRUCTION DETECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce the number of devices to be installed by improving the sensitivity of vibration detection. SOLUTION: The destruction detection device for detecting vibration due to destructive action taken to a casing panel is provided with a diaphragm to be vibrated in accordance with vibration generated in the panel, a piezoelectric diaphragm for detecting the vibration of the diaphragm as voltage and a vibration deciding part for deciding whether destructive action is performed not on the basis of voltage from the piezoelectric diaphragm and space is formed between the diaphragm and the piezoelectric diaphragm.