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ISSN23075732

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. , ' .򠳠 . Ǡ . 蠳.   ,. Ⳡ : , , ', , ,,, K.YU. HOLUB, O.V. ZABOLOTNYI, O.V. CHUMACHENKO National Aerospace University named after M. Zhukovskyi Kharkiv Aviation Institute

ASSESSMENT OF ACCURACY CHARACTERISTICS OF METHODOLOGY FOR DETERMINATION OF DUST

MOISTURE CONTENT AT TESTS OF VARIOUS PURPOSES CONTROL SYSTEM EQUIPMENT TO

RESISTANCE AGAINST DUST INFLUENCE

AbstractTheaimoftheresearchisassessmentofaccuracycharacteristicsofmethodologyfordeterminationofdustmoisture contentattestsofvariouspurposescontrolsystemequipmenttoresistanceagainstdustinfluence,andalsodeterminationofpossibilityofits applicationasareference. Analysisofthelastachievementsandpublicationsinthefieldofmoisturemetersiscarriedout,andneedofreceivingofreference methodologywithhighaccuracycharacteristicsisestimated.Forthepurposeofdeterminationofdustmoisturecontentattestsofvarious purposes control system equipment to resistance against dust influence the methodology which describes this process is developed. As a methodthedryingmethod(thermogravimetricmethod)ischosen.Factorshavingthegreatestimpactonmeasuringprocessaredefinedand equationofdependencefordeterminationofdustmoisturecontentisobtained.Fullfactorialexperimentiscarriedoutandmathematical modelofmeasuringprocessisobtainedusingleastsquaresmethod.Measurementsofdustsampleswithgivenstructurearecarriedoutfor the purpose of determination of accuracy characteristics of methodology. Errors and uncertainties values of mathematical model are received. As result of the analysis of received values a conclusion about suitability of developed methodology and possibility of its applicationasareferenceatdeterminationofmoisturecontentofsolidsubstances,andalsoforcalibrationofmoisturemetersforspecified structureofsubstanceisdrawn. Keywords:moisturecontent,accuracy,equationofdependence,mathematicalmodel,completefactorialexperiment,leastsquares method,error,uncertainty , . ( - ). , , .

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