ISA 5.1 symbol
exported equivalent COPI_0000143
Pressure Gauge
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000143
Generated onGerado em 2026-04-15
Natural Language DefinitionDefinição em Linguagem Natural
EN
A pressure gauge is an indicator that bears the function of measuring and displaying pressure values.
PT-BR
Um manômetro é um indicador que possui a função de medir e exibir valores de pressão.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every pressure gauge is an instrument that has the function to measure and display pressure
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (PressureGauge(x) ↔ Indicator(x) ∧ ∃f (PressureMeasurementFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: PressureMeasurementFunction]∀f (PressureMeasurementFunction(f) → ∀p (realizedIn(f,p) → PressureMeasurementProcess(p)) ∧ ∃p (PressureMeasurementProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((PressureGauge(x) ∧ PressureMeasurementFunction(f) ∧ bearerOf(x,f)) → ∃m (PressurizedFluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (PressureReading(e) ∧ participatesIn(e,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: PressureGauge <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 "1.1.0-104-g4d16eff" ; 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 "2026-07-13"^^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 :PressureMeasurementFunction rdf:type owl:Class ; rdfs:subClassOf :IndicationFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :PressureMeasurementProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :PressureMeasurementProcess ] ; rdfs:label "pressure measurement function"@en ; rdfs:label "função de medição de pressão"@pt-br . :IndicationFunction rdf:type owl:Class . ### Process type :PressureMeasurementProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "pressure measurement process"@en ; rdfs:label "processo de medição de pressão"@pt-br . :PressureMeasurementProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PressurizedFluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PressureReading ] . ### Equipment universal: PressureGauge :PressureGauge rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :Indicator [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :PressureMeasurementFunction ] ) ] ; rdfs:label "pressure gauge"@en ; rdfs:label "manômetro"@pt-br ; iof-av:naturalLanguageDefinition "A pressure gauge is an indicator that bears the function of measuring and displaying pressure values."@en ; skos:definition "A pressure gauge is an indicator that bears the function of measuring and displaying pressure values."@en ; iof-av:naturalLanguageDefinition "Um manômetro é um indicador que possui a função de medir e exibir valores de pressão."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every pressure gauge is an instrument that has the function to measure and display pressure"@en ; iof-av:firstOrderLogicAxiom "∀x (PressureGauge(x) ↔ (Instrument(x) ∧ ∃f (PressureMeasurementFunction(f) ∧ bearerOf(x,f))))"@en ; # Disjointness: PressureGauge and PressureTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :PressureGauge :PressureTransmitter ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
PressureMeasurementFunction ⊑ IndicationFunction
Realized in
PressureMeasurementProcess ⊑ PlannedProcess
All definitions consistently identify measurement and display of pressure as the identity-giving function. This distinguishes pressure gauges from pressure transmitters (which transmit signals) and other pressure-related instruments.
2 Genus DeterminationDeterminação do Gênero
indicatorbfo:Object (BFO_0000030)
While parent candidates include PRESSURE MEASURING INSTRUMENT and PROCESS GAUGE from ISO15926, the most appropriate genus is the general Instrument class that encompasses all measuring and indicating devices. This is more specific than MaterialArtifact but captures the essential nature as a measuring device. Instrument is not yet enriched in our ontology but should be defined later as a measuring/monitoring device.
3 Differentia SpecificaDiferença Específica
∃bearerOf.PressureMeasurementFunction

Bears the function of measuring and displaying pressure values.

The specific measurement of pressure is what distinguishes this from other instruments. The function is both necessary (all pressure gauges must measure pressure) and sufficient (any instrument that measures and displays pressure is a pressure gauge).
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These are the minimal essential components present in all pressure gauge implementations, regardless of technology or specific design.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PressurizedFluidPortion', 'count': 1, 'constraints': 'process fluid whose pressure is to be measured'}
OutputsSaídas
{'type': 'PressureReading', 'count': 1, 'constraints': 'displayed pressure value'}
TransformationTransformação
pressure sensing and indication - converts fluid pressure to visual representation
Pressure gauges are passive measuring devices that sense the pressure of a connected fluid and provide a visual indication without altering the measured fluid.
Disjoint WithDisjunto com
PressureTransmitter
C?: PressureTransmitter [kind_ambiguous]. Different process signatures: transmitters output electrical signals, switches output discrete on/off signals, regulators modify pressure rather than just measuring it
MetadataMetadados
COPI IDCOPI IDCOPI_0000143
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000143
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-15
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13