Geological movement detectors
专利汇可以提供Geological movement detectors专利检索，专利查询，专利分析的服务。并且A device for determining very minute movement, as well as relatively large movement, of a material such as rock in a mine. An anchor is secured to one part of the material, and another anchor is secured to a separated part of the material. A pair of movable elements are secured separately to the two anchors. One part of a transducer, as for example, in one embodiment, illustrated a carbon resistance bar of a variable resistance, is secured to one of the movable elements; and another part of the transducer, as for example in the same embodiment the wiper arm of the variable resistance, is secured to the other movable element. Thus, when one anchor moves relative to the other anchor, the resistance is varied. This is one type of linear transducer. In other types shown, an inductance or a capacitance is substituted for the variable resistance. There is also provided an electrical circuit including a source or supply of electric power, the transducer, and a read-out device. The read-out device is shown herein as an ammeter.，下面是Geological movement detectors专利的具体信息内容。
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