Browsing by Author "Broek, Michael"

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    Ore level detector
    (1990) Broek, Michael; Downing, B J
    It was the objective of this project to design and build a transmitter/receiver unit that indicates when the ore level in a vertical ore chute falls below the level of the signal path. The design was commissioned by De Beers Consolidated Mines to be implemented in South Africa's largest diamond producing mine, the Finsch Mine at Limeacres in the north-western Cape. The system requirements laid out'by de Beers stressed that the unit is to be used as a backup system, and thus its absolute reliability was of highest importance.