ISA 5.1 symbol
exported equivalent COPI_0000252
Differential Pressure Switch
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000252
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A differential pressure switch is a pressure switch that bears a differential pressure switching function to switch or provide on/off signals when the measured differential pressure between two inputs reaches a pre-set value.
PT-BR
Um interruptor de pressão diferencial é um interruptor de pressão que possui uma função de comutação de pressão diferencial para comutar ou fornecer sinais liga/desliga quando a pressão diferencial medida entre duas entradas atinge um valor pré-estabelecido.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every differential pressure switch is a pressure switch that has the function to switch based on differential pressure measurements between two pressure inputs.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (DifferentialPressureSwitch(x) ↔ Instrument(x) ∧ ∃f (DifferentialPressureSwitchingFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: DifferentialPressureSwitchingFunction]∀f (DifferentialPressureSwitchingFunction(f) → ∀p (realizedIn(f,p) → DifferentialPressureSwitchingProcess(p)) ∧ ∃p (DifferentialPressureSwitchingProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((DifferentialPressureSwitch(x) ∧ DifferentialPressureSwitchingFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (ElectricalSignal(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: DifferentialPressureSwitch <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 :DifferentialPressureSwitchingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :DifferentialPressureSwitchingProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :DifferentialPressureSwitchingProcess ] ; rdfs:label "differential pressure switching function"@en ; rdfs:label "função de chaveamento por pressão diferencial"@pt-br . ### Process type :DifferentialPressureSwitchingProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "differential pressure switching process"@en ; rdfs:label "processo de chaveamento por pressão diferencial"@pt-br . :DifferentialPressureSwitchingProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :ElectricalSignal ] . ### Equipment universal: DifferentialPressureSwitch :DifferentialPressureSwitch rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :Instrument [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :DifferentialPressureSwitchingFunction ] ) ] ; rdfs:label "differential pressure switch"@en ; rdfs:label "interruptor de pressão diferencial"@pt-br ; iof-av:naturalLanguageDefinition "A differential pressure switch is a pressure switch that bears a differential pressure switching function to switch or provide on/off signals when the measured differential pressure between two inputs reaches a pre-set value."@en ; skos:definition "A differential pressure switch is a pressure switch that bears a differential pressure switching function to switch or provide on/off signals when the measured differential pressure between two inputs reaches a pre-set value."@en ; iof-av:naturalLanguageDefinition "Um interruptor de pressão diferencial é um interruptor de pressão que possui uma função de comutação de pressão diferencial para comutar ou fornecer sinais liga/desliga quando a pressão diferencial medida entre duas entradas atinge um valor pré-estabelecido."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every differential pressure switch is a pressure switch that has the function to switch based on differential pressure measurements between two pressure inputs."@en ; iof-av:firstOrderLogicAxiom "∀x(DifferentialPressureSwitch(x) ↔ PressureSwitch(x) ∧ ∃f(DifferentialPressureSwitchingFunction(f) ∧ bearerOf(x,f)))"@en ; # Disjointness: DifferentialPressureSwitch and FlowSwitch [] rdf:type owl:AllDisjointClasses ; owl:members ( :DifferentialPressureSwitch :FlowSwitch ) . # Disjointness: DifferentialPressureSwitch and LevelSwitch [] rdf:type owl:AllDisjointClasses ; owl:members ( :DifferentialPressureSwitch :LevelSwitch ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
DifferentialPressureSwitchingFunction ⊑ DesignedFunction
Realized in
DifferentialPressureSwitchingProcess ⊑ PlannedProcess
The identity-giving function is to switch or provide on/off signals when measured differential pressure reaches a pre-set value, combining differential pressure measurement with switching action
2 Genus DeterminationDeterminação do Gênero
instrumentbfo:Object (BFO_0000030)
ISO 15926 explicitly states that a differential pressure switch is a pressure switch. From parent candidates, PRESSURE SWITCH is the most specific and appropriate superclass, though it is not yet enriched in our ontology
3 Differentia SpecificaDiferença Específica
∃bearerOf.DifferentialPressureSwitchingFunction

Measures the difference between two pressure inputs rather than absolute pressure

The key differentia is the ability to measure differential pressure (pressure difference between two inputs) rather than absolute pressure, which requires dual pressure inputs and differential measurement capability
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

Essential components for differential pressure measurement and switching functionality
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 2, 'constraints': 'at different pressures for differential measurement'}
OutputsSaídas
{'type': 'ElectricalSignal', 'count': 1, 'constraints': 'on/off or digital switch state'}
TransformationTransformação
pressure difference measurement converted to electrical switching signal
Takes two pressure inputs, measures their difference, and outputs electrical switching signal when preset threshold is reached
Disjoint WithDisjunto com
FlowSwitch LevelSwitch
C?: FlowSwitch [kind_ambiguous]. C?: LevelSwitch [kind_ambiguous]. Different measurement parameters (pressure vs temperature/flow/level) make these switch types incompatible
MetadataMetadados
COPI IDCOPI IDCOPI_0000252
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000252
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13