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    • 10. 发明专利
    • STORAGE CABINET
    • JPH0867315A
    • 1996-03-12
    • JP20508794
    • 1994-08-30
    • MITSUBISHI HEAVY IND LTD
    • NORIMATSU YASUFUMISHIMAZUTSU HIROAKINONOGAMI TOKIOUJIHARA TAKASUMIYAMADA KATSUHIKO
    • G08C17/00B65G3/04G01R27/26H01Q1/00
    • PURPOSE: To grasp the moisture distribution in a material in a storage cabinet so that the occurrence of a high temperature part can be detected by providing an oscillator for oscillating electric waves toward the material stored in the cabinet and a receiver for receiving the electric waves oscillated from the oscillator and passed through the material. CONSTITUTION: Electric waves are shot from an antenna 9A to a coal layer 3 to be received through the coal layer 3 by antennas 9B-9D. The electric waves, after the repetition of transmission, attenuation, dispersion and diffraction in the coal layer 3, are received by the antennas 9B-9D to be sent to a signal processing unit 12 and show the temperature rise in the coal layer 3. Thereafter, the temperature is measured at every fixed time and when the high temperature part 10 is generated in the coal layer 3, the moisture distribution is changed. Since there is a difference between the electric wave properties of water and coal, the change in the moisture distribution of the coal layer 3 appears as the change in the received electric waves of the antennas 9B-9D. Since the change in moisture in the coal layer 3 can be grasped from the above result by comparing the initial value with a value measured until the previous time, the occurrence of high temperature in the coal layer 3 can be detected.