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exported equivalent COPI_0000128
Level Element
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000128
Generated onGerado em 2026-05-02
Natural Language DefinitionDefinição em Linguagem Natural
EN
A level element is an instrument that bears a level detection function for determining fluid level in a vessel or container.
PT-BR
Um elemento de nível é um instrumento que possui uma função de detecção de nível para determinar o nível de fluido em um vaso ou recipiente.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every level element is a detector that has the function to detect fluid level
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (LevelElement(x) ↔ Instrument(x) ∧ ∃f (LevelDetectionFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: LevelDetectionFunction]∀f (LevelDetectionFunction(f) → ∀p (realizedIn(f,p) → LevelDetectionProcess(p)) ∧ ∃p (LevelDetectionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((LevelElement(x) ∧ LevelDetectionFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (LevelSignal(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: LevelElement <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 :LevelDetectionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :LevelDetectionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :LevelDetectionProcess ] ; rdfs:label "level detection function"@en ; rdfs:label "função de detecção de nível"@pt-br . ### Process type :LevelDetectionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "level detection process"@en ; rdfs:label "processo de detecção de nível"@pt-br . :LevelDetectionProcess 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 :LevelSignal ] . ### Equipment universal: LevelElement :LevelElement 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 :LevelDetectionFunction ] ) ] ; rdfs:label "level element"@en ; rdfs:label "elemento de nível"@pt-br ; iof-av:naturalLanguageDefinition "A level element is an instrument that bears a level detection function for determining fluid level in a vessel or container."@en ; skos:definition "A level element is an instrument that bears a level detection function for determining fluid level in a vessel or container."@en ; iof-av:naturalLanguageDefinition "Um elemento de nível é um instrumento que possui uma função de detecção de nível para determinar o nível de fluido em um vaso ou recipiente."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every level element is a detector that has the function to detect fluid level"@en ; iof-av:firstOrderLogicAxiom "∀x (LevelElement(x) ↔ Detector(x) ∧ ∃f(LevelDetectionFunction(f) ∧ bearerOf(x,f)))"@en ; # Disjointness: LevelElement and PressureTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :LevelElement :PressureTransmitter ) . # Disjointness: LevelElement and TemperatureTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :LevelElement :TemperatureTransmitter ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
LevelDetectionFunction ⊑ DesignedFunction
Realized in
LevelDetectionProcess ⊑ PlannedProcess
The identity-giving function is to detect or determine fluid level. This is a specific type of detection function focused on level measurement, distinct from other detection functions like pressure, temperature, or flow detection.
2 Genus DeterminationDeterminação do Gênero
Instrumentbfo:Object (BFO_0000030)
From the parent_candidates, 'detecting element' is mentioned, but 'detector' is already enriched in our ontology with DetectionFunction. A level element is a specialized detector focused on level detection. The genus 'detector' is more specific than 'Instrument' and captures the detecting nature accurately.
3 Differentia SpecificaDiferença Específica
∃bearerOf.LevelDetectionFunction

bears a level detection function that specifically determines fluid level rather than detecting other physical phenomena

The differentia is the specific subtype of detection function - level detection. This distinguishes it from other detectors that detect different physical phenomena. The genus already provides the general detection capability.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

Level elements require both a sensing component that physically detects the level and a transduction component that converts this into a measurable or transmittable form. Specific mechanisms (radar antenna, ultrasonic transducer, float, etc.) are subtype-specific.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'contained in vessel or tank'}
OutputsSaídas
{'type': 'LevelSignal', 'count': 1, 'constraints': 'proportional to fluid level'}
TransformationTransformação
physical level measurement converted to signal representation
Level elements take the physical state of a fluid (its level in a container) as input and produce a signal output that represents that level measurement. No material transformation of the fluid occurs.
Disjoint WithDisjunto com
pressure transmitter temperature transmitter
C2: flow meter. C?: pressure transmitter [kind_ambiguous]. C?: temperature transmitter [kind_ambiguous]. Level elements have incompatible process signatures with flow meters (which measure flow rate), pressure transmitters (which measure pressure), and temperature transmitters (which measure temperature). Different physical phenomena being measured make them mutually exclusive equipment types.
MetadataMetadados
COPI IDCOPI IDCOPI_0000128
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000128
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-05-02
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroInstrument
Root classClasse raizMaterialArtifact
Axiom modeModoequivalent
FunctionFunçãoLevelDetectionFunction
ProcessProcessoLevelDetectionProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 1 source
CFIHOS level element
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.