ISA 5.1 symbol
exported necessary COPI_0000205
Absolute Pressure Transmitter
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000205
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
An absolute pressure transmitter is a pressure transmitter that has a vacuum reference chamber on one side of the pressure sensor while the other side receives the process pressure.
PT-BR
Um transmissor de pressão absoluta é um transmissor de pressão que possui uma câmara de referência de vácuo de um lado do sensor de pressão enquanto o outro lado recebe a pressão do processo.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every absolute pressure transmitter is a pressure transmitter that has a vacuum reference chamber as a component part at all times.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (AbsolutePressureTransmitter(x) → PressureTransmitter(x) ∧ ∃f (PressureTransmissionFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: PressureTransmissionFunction]∀f (PressureTransmissionFunction(f) → ∀p (realizedIn(f,p) → PressureTransmissionProcess(p)) ∧ ∃p (PressureTransmissionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (AbsolutePressureTransmitter(x) → ∃hasPart.VacuumReferenceeChamber) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Necessary part: VacuumReferenceeChamber]∀x (AbsolutePressureTransmitter(x) → ∃p (VacuumReferenceeChamber(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Necessary part: PressureSensor]∀x (AbsolutePressureTransmitter(x) → ∃p (PressureSensor(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((AbsolutePressureTransmitter(x) ∧ PressureTransmissionFunction(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: AbsolutePressureTransmitter <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 :PressureTransmissionFunction rdf:type owl:Class ; rdfs:subClassOf :SignalTransmissionFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :PressureTransmissionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :PressureTransmissionProcess ] ; rdfs:label "pressure transmission function"@en ; rdfs:label "função de transmissão de pressão"@pt-br . :SignalTransmissionFunction rdf:type owl:Class . ### Process type :PressureTransmissionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "pressure transmission process"@en ; rdfs:label "processo de transmissão de pressão"@pt-br . :PressureTransmissionProcess 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: AbsolutePressureTransmitter :AbsolutePressureTransmitter rdf:type owl:Class ; rdfs:subClassOf :PressureTransmitter ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :PressureTransmissionFunction ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :VacuumReferenceeChamber ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :PressureSensor ] ; rdfs:label "absolute pressure transmitter"@en ; rdfs:label "transmissor de pressão absoluta"@pt-br ; iof-av:naturalLanguageDefinition "An absolute pressure transmitter is a pressure transmitter that has a vacuum reference chamber on one side of the pressure sensor while the other side receives the process pressure."@en ; skos:definition "An absolute pressure transmitter is a pressure transmitter that has a vacuum reference chamber on one side of the pressure sensor while the other side receives the process pressure."@en ; iof-av:naturalLanguageDefinition "Um transmissor de pressão absoluta é um transmissor de pressão que possui uma câmara de referência de vácuo de um lado do sensor de pressão enquanto o outro lado recebe a pressão do processo."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every absolute pressure transmitter is a pressure transmitter that has a vacuum reference chamber as a component part at all times."@en ; iof-av:firstOrderLogicAxiom "∀x (AbsolutePressureTransmitter(x) → PressureTransmitter(x) ∧ ∃y (VacuumReferenceeChamber(y) ∧ hasComponentPartAtAllTimes(x,y)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive classification based on vacuum reference chamber configuration. Under Open World Assumption, defining sufficient conditions could lead to unintended classification of complex instruments that contain vacuum chambers but serve different primary functions. The structural differentia is necessary but making it sufficient requires domain expert validation."@en ; :VacuumReferenceeChamber rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "câmara de vácuo de referência"@pt-br ; rdfs:label "vacuum referencee chamber"@en . :PressureSensor rdf:type owl:Class ; rdfs:subClassOf iof-core:Assembly ; rdfs:label "sensor de pressão"@pt-br ; rdfs:label "pressure sensor"@en .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
PressureTransmissionFunction ⊑ SignalTransmissionFunction
Realized in
PressureTransmissionProcess ⊑ PlannedProcess
The identity-giving function is pressure transmission - converting pressure measurements into standardized signals for transmission to control systems. This is the same core function as other pressure transmitters, with the absolute measurement capability being a constructive differentia rather than a distinct function.
2 Genus DeterminationDeterminação do Gênero
pressure transmitterbfo:Object (BFO_0000030)
The genus is 'pressure transmitter' which is already enriched in our ontology and appears in the parent candidates from ISO 15926. This is the most specific appropriate superclass - all absolute pressure transmitters are pressure transmitters with the additional structural constraint of having a vacuum reference chamber.
3 Differentia SpecificaDiferença Específica
∃hasPart.VacuumReferenceeChamber

Has a vacuum reference chamber on one side of the pressure sensor while the other side receives the process pressure.

The vacuum reference chamber is the essential structural differentia that enables absolute pressure measurement by providing a near-perfect vacuum reference against which the process pressure is measured.
4 Necessary PartsPartes Necessárias
Part classParentRelation
VacuumReferenceeChamberMaterialArtifacthasComponentPartAtAllTimes
PressureSensorAssemblyhasComponentPartAtAllTimes
The vacuum reference chamber is the key differentiating part that must be present in all absolute pressure transmitters, while the pressure sensor is inherited from the genus.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'process fluid at unknown absolute pressure'}
OutputsSaídas
{'type': 'ElectricalSignal', 'count': 1, 'constraints': 'proportional to absolute pressure'}
TransformationTransformação
pressure measurement transduction with vacuum reference
Takes process fluid pressure as input and outputs electrical signal proportional to absolute pressure using vacuum chamber as reference.
MetadataMetadados
COPI IDCOPI IDCOPI_0000205
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000205
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13