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  <xs:element id="ame_TwoThousandAndNineteenConsolidatedAcquisitionMember" abstract="true" name="TwoThousandAndNineteenConsolidatedAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_OtherAcquisitionsMember" abstract="true" name="OtherAcquisitionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_FourPointFourFivePercentDueAugustTwoThousandThirtyFiveMember" abstract="true" name="FourPointFourFivePercentDueAugustTwoThousandThirtyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_DefinedContributionPensionAndOtherPostretirementPlansAbstract" abstract="true" name="DefinedContributionPensionAndOtherPostretirementPlansAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ame_GainLossOnSaleOfFacilities" abstract="false" name="GainLossOnSaleOfFacilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ame_SeniorNotesFourPointOneEightPercentDueDecemberTwoThousendTwentyFiveMember" abstract="true" name="SeniorNotesFourPointOneEightPercentDueDecemberTwoThousendTwentyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_KymeraInternationalMember" abstract="true" name="KymeraInternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_RevolvingCreditFacilityBorrowingsMember" abstract="true" name="RevolvingCreditFacilityBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_ElectromechanicalGroupMember" abstract="true" name="ElectromechanicalGroupMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_BusinessAcquisitionProFormaInformationEstimatedSalesPercent" abstract="false" name="BusinessAcquisitionProFormaInformationEstimatedSalesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ame_NonEmployeeDirectorsRestrictedStockMember" abstract="true" name="NonEmployeeDirectorsRestrictedStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_IncreaseDecreaseInInventoriesAndOtherCurrentAssets" abstract="false" name="IncreaseDecreaseInInventoriesAndOtherCurrentAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ame_CompositionOfDeferredTaxAssetsAndLiabilitiesTable" abstract="true" name="CompositionOfDeferredTaxAssetsAndLiabilitiesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="ame_ForeignSubsidiariesMember" abstract="true" name="ForeignSubsidiariesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_ScheduleOfIncomeTaxLineItems" abstract="true" name="ScheduleOfIncomeTaxLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ame_PerformanceRestrictedStockUnitsMember" abstract="true" name="PerformanceRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_BusinessAcquisitionPurchasePriceAllocationNetWorkingCapitalAndOther" abstract="false" name="BusinessAcquisitionPurchasePriceAllocationNetWorkingCapitalAndOther" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ame_DefinedBenefitPlanContributionsByEmployerEmployeeMatch" abstract="false" name="DefinedBenefitPlanContributionsByEmployerEmployeeMatch" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ame_DefinedContributionPlanEmployerContributionMaximumPercentage" abstract="false" name="DefinedContributionPlanEmployerContributionMaximumPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ame_ThreePointNineOnePercentDueJuneTwoThousandTwentyFiveMember" abstract="true" name="ThreePointNineOnePercentDueJuneTwoThousandTwentyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_PurchasedTechnologyMember" abstract="true" name="PurchasedTechnologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ame_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsCustomerAdvances" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsCustomerAdvances" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ame_CommonStockDividendsPerShareCashPaidPercentageIncrease" abstract="false" name="CommonStockDividendsPerShareCashPaidPercentageIncrease" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ame_ComponentsOfIncomeBeforeIncomeTaxesAndProvisionForIncomeTaxesTableTextBlock" abstract="false" name="ComponentsOfIncomeBeforeIncomeTaxesAndProvisionForIncomeTaxesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ame_AdditionalBorrowingCapacityUnderRevolvingCreditFacility" abstract="false" name="AdditionalBorrowingCapacityUnderRevolvingCreditFacility" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
