G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
G01N9/04—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of fluids
G01N9/06—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of fluids with continuous circulation through a pivotally supported member
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
H01R39/00—Rotary current collectors, distributors or interrupters
H01R39/02—Details for dynamo electric machines
H01R39/04—Commutators
H01R39/045—Commutators the commutators being made of carbon
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Health & Medical Sciences
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Life Sciences & Earth Sciences
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Chemical & Material Sciences
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Analytical Chemistry
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Biochemistry
(AREA)
General Health & Medical Sciences
(AREA)
General Physics & Mathematics
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Immunology
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Pathology
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Physical Or Chemical Processes And Apparatus
(AREA)
Dispositif de repartition en alternance de volumes successifs de liquide, notamment de bachees de chasse dans des installations d'epuration des eaux usees