FIELD: chemistry.
SUBSTANCE: in the device for determining the resistance of geosynthetic materials, a cylindrical part is placed between the guide rod and the impact cone, on which a ferromagnetic core in the form of a hollow cylinder is placed outside, the protective shield is made of a non-magnetic material inert to electromagnetic waves, and on its outer side an inductor is installed, the height of the ferromagnetic core corresponding to the length of the inductor, and the length of the inductor is 1.5 times greater than the height of the impact cone. The inductance coil is included in the measuring circuit, where it is electrically connected to the bridge measuring circuit, to the input of which the signal generator is connected, and to the output there is an amplifier-detector and a quadrator, a normalizing transducer and a measuring device connected in series.
EFFECT: improving the speed and accuracy of the test process.
2 dwg, 1 tbl
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|---|---|---|---|
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|
RU2800398C1 |
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| SPEED SENSOR | 2012 |
|
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| ELECTROMAGNETIC TRANSDUCER | 2014 |
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RU2577083C1 |
