| 摘要 |
PROBLEM TO BE SOLVED: To provide a property measuring device capable of measuring properties of a measuring object inexpensively with simple structure. SOLUTION: In this property measuring device 3, a radio wave (GPS signal) transmitted through the measuring object is received, and the attenuation amount (intensity of the radio wave) of the GPS signal is measured continuously automatically, and the property such as moisture in the measuring object 2 is estimated nondestructively. Signal reception parts 3a, 3b are GPS receivers (GPS antennas) for receiving a GPS signal outputted from a GPS satellite, and a signal attenuation amount operation part 3d operates the attenuation amount of the GPS signal transmitted through the measuring object 2. A correlation information storage part 3f stores a signal attenuation amount-moisture content curve showing the correlation between the attenuation amount of the GPS signal received by the signal reception part 3a and the moisture content inside the fallen snow. A property measuring part 3g measures the moisture inside the fallen snow based on attenuation amount information stored in an attenuation amount information storage part 3e and correlation information stored in a correlation information storage part 3f. COPYRIGHT: (C)2007,JPO&INPIT
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