FIELD: mining.
SUBSTANCE: device for continuous control of rock mass stressed condition includes light signal source, stress optical sensors, fibre-optic cables and indication, registration and warning unit. Note that monochromatic radiation source is used as light signal source. Additionally there are two collecting lens installed at measurement area, optical detector and controlling PC located on daylight surface. At that light signal source via fibre-optic cable and first collecting lens is connected to stress optical sensor, which is connected to optical detector through fibre-optic cable and second collecting lens. Optical detector is connected to controlling PC, the output of which is connected to indication, registration and warning unit.
EFFECT: device operation accuracy, efficiency and reliability improvement.
1 dwg
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Authors
Dates
2011-06-20—Published
2010-02-15—Filed