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    • 3. 发明专利
    • METHOD FOR MEASURING MOISTURE
    • JPS61277043A
    • 1986-12-08
    • JP11957985
    • 1985-05-31
    • NOGYO KIKAIKA KENKYUSHO
    • FUKUMORI ISAOMICHIMUNE NAOAKISUZUKI MITSUONAKAGAWA YASUO
    • G01N27/04G01N27/02G01N27/22
    • PURPOSE:To make it possible to easily and instantaneously measure the moisture of a high moisture substance by a simple structure, by winding a coil around the outer periphery of a non-conductive container receiving a water-containing substance and catching the change in the inductance of the coil due to the quantity of moisture in the water-containing substance to measure the moisture of the water-containing substance. CONSTITUTION:When livestock excretion A to be measured is received in a container 1 and a change-over switch 6 is connected to a contact 6a, the inductance of a coil 2 changes to be outputted to a terminal 7 through an oscillation circuit 5 and the moisture of the livestock excretion A is detected on the basis of said output but, concretely, said moisture is grasped as the change in resonance frequency. In this case, because the resonance frequency is different by the shape of the container 1 or the length of the coil, the relation between moisture and the change quantity of resonance frequency is preliminarily corrected prior to measurement. When the moisture of the livestock excretion A to be measured is low (for example, one on the way of drying), the change-over switch 6 is changed over to the side of a contact 6b to make it possible to perform the measurement according to the same electrostatic capacity measuring method as a conventional known method using an electrode 3. As mentioned above, the measurement of high moisture by the coil and that of low moisture by the electrode 3 can be performed.