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exported necessary COPI_0000278
Flow Meter
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000278
Generated onGerado em 2026-04-15
Natural Language DefinitionDefinição em Linguagem Natural
EN
A flow meter is an instrument that bears a function to measure flow rate and produce corresponding signals or indications.
PT-BR
Um medidor de vazão é um instrumento que possui uma função de medir taxa de fluxo e produzir sinais ou indicações correspondentes.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every flow meter is an instrument that bears a flow measurement function and has component parts including a flow sensing element and signal processing unit
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (FlowMeter(x) → Instrument(x) ∧ ∃f (FlowMeasurementFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: FlowMeasurementFunction]∀f (FlowMeasurementFunction(f) → ∀p (realizedIn(f,p) → FlowMeasurementProcess(p)) ∧ ∃p (FlowMeasurementProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (FlowMeter(x) → ∃bearerOf.FlowMeasurementFunction) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((FlowMeter(x) ∧ FlowMeasurementFunction(f) ∧ bearerOf(x,f)) → ∃m (PortionOfFluid(m) ∧ participatesIn(m,f)) ∧ ∃e1 (PortionOfFluid(e1) ∧ participatesIn(e1,f)) ∧ ∃e2 (MeasurementInformationContentEntity(e2) ∧ participatesIn(e2,f)) ∧ processType(f,MeasurementTransduction)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: FlowMeter <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0-134-g6e3b4fb" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-09-04"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :FlowMeasurementFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :FlowMeasurementProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :FlowMeasurementProcess ] ; rdfs:label "flow measurement function"@en ; rdfs:label "função de medição de fluxo"@pt-br . ### Process type :FlowMeasurementProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "flow measurement process"@en ; rdfs:label "processo de medição de fluxo"@pt-br . :FlowMeasurementProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PortionOfFluid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PortionOfFluid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :MeasurementInformationContentEntity ] . ### Equipment universal: FlowMeter :FlowMeter rdf:type owl:Class ; rdfs:subClassOf :Instrument ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :FlowMeasurementFunction ] ; rdfs:label "flow meter"@en ; rdfs:label "medidor de vazão"@pt-br ; iof-av:naturalLanguageDefinition "A flow meter is an instrument that bears a function to measure flow rate and produce corresponding signals or indications."@en ; skos:definition "A flow meter is an instrument that bears a function to measure flow rate and produce corresponding signals or indications."@en ; iof-av:naturalLanguageDefinition "Um medidor de vazão é um instrumento que possui uma função de medir taxa de fluxo e produzir sinais ou indicações correspondentes."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every flow meter is an instrument that bears a flow measurement function and has component parts including a flow sensing element and signal processing unit"@en ; iof-av:firstOrderLogicAxiom "∀x(FlowMeter(x) ↔ Instrument(x) ∧ ∃f(FlowMeasurementFunction(f) ∧ bearerOf(x,f)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Over-reaching equivalence (ODR-022 §17). The definition is \"measure flow rate AND produce corresponding signals or indications\" — indication is beyond FlowMeasurementFunction, so that function alone is not sufficient. As equivalent it absorbed flow element and orifice plate, which CFIHOS and POSC define as distinct from a meter (element produces a signal; meter measures and indicates)."@en ; # Disjointness: FlowMeter and PressureTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :FlowMeter :PressureTransmitter ) . # Disjointness: FlowMeter and TemperatureTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :FlowMeter :TemperatureTransmitter ) . # Disjointness: FlowMeter and LevelTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :FlowMeter :LevelTransmitter ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
FlowMeasurementFunction ⊑ DesignedFunction
Realized in
FlowMeasurementProcess ⊑ PlannedProcess
The identity-giving function is to measure flow rate and produce signals or indications representing the measured flow. This distinguishes flow meters from other instruments that measure different process variables.
2 Genus DeterminationDeterminação do Gênero
Instrumentbfo:Object (BFO_0000030)
Flow meters are measuring instruments - they detect, measure and indicate or transmit process variables. The parent candidates 'instrument equipment' and 'Instrumentation And Control Equipment' point to the general category of instruments. While 'Instrument' is not explicitly in the parent candidates list, it is the obvious domain superclass for measuring devices and appears as genus for several already-enriched instrument types (flow indicator, limit switch, transmitter).
3 Differentia SpecificaDiferença Específica
∃bearerOf.FlowMeasurementFunction

Bears a function to measure flow rate and produce corresponding signals or indications.

The differentia is specifically the flow measurement function, which distinguishes flow meters from other instruments that measure different process variables. This is the minimal condition beyond the general instrument genus.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These are the minimal essential components - a sensing element to detect flow and signal processing to produce the measurement output. Specific sensing mechanisms vary by subtype.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PortionOfFluid', 'count': 1, 'constraints': 'flowing through measurement section'}
OutputsSaídas
{'type': 'PortionOfFluid', 'count': 1, 'constraints': 'essentially unchanged but measured'}, {'type': 'MeasurementInformationContentEntity', 'count': 1, 'constraints': 'representing flow rate'}
TransformationTransformação
measurement transduction - flow rate information extracted and converted to signal
Flow meters are non-intrusive measurement devices - fluid passes through essentially unchanged while flow information is extracted and converted to a measurement signal
Disjoint WithDisjunto com
PressureTransmitter TemperatureTransmitter LevelTransmitter
C?: PressureTransmitter [kind_ambiguous]. C?: TemperatureTransmitter [kind_ambiguous]. C?: LevelTransmitter [kind_ambiguous]. These instrument types have incompatible measurement functions - an instrument cannot simultaneously measure flow rate and pressure/temperature/level as primary functions
MetadataMetadados
COPI IDCOPI IDCOPI_0000278
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000278
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-15
UpdatedAtualizado2026-08-13
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-09-04
Quick factsDados rápidos
GenusGêneroInstrument
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoFlowMeasurementFunction
ProcessProcessoFlowMeasurementProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
CFIHOS flow meter
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
SLB Glossary flow meter
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
POSC Caesar Flow Meter
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.