FIELD: manufacture of industrial explosives for indication of level of various media in hoppers-agitators. SUBSTANCE: signals generated by moving medium and received by sensitive element are recorded at moment of its physical contact with this medium. Piezoelectric pickup with circular radiation pattern is used in the capacity of sensitive element. EFFECT: increased reliability and safety of indication of level of hazardous loose media. 1 cl, 1 dwg
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Authors
Dates
1998-03-20—Published
1996-06-19—Filed