FIELD: oil and gas production industry. SUBSTANCE: this can be used for direct measuring of drill mud parameters during drilling oil and gas wells. Device has temperature sensor, density gamma sensor, electromagnetic flow rate meter installed in measuring pipeline which is connected with trough. Mounted on trough before measuring pipeline is additional level sensor. Outputs of all sensors are connected with inlets of commutator and its output is connected to input of microcomputer. Level indicator is neutron-type and is made up of biological protection, neutron source and detectors, and located between them is layer of material absorbing slow neutrons. EFFECT: high efficiency. 1 cl, 3 dwg
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