exported
necessary
diaphragm actuator
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Diaphragmactuator
Generated on 2026-05-04
Natural Language Definition
EN
A diaphragm actuator is an actuator that uses a diaphragm as an essential component for converting control signals into mechanical motion or force to operate other equipment.
PT-BR
Um atuador de diafragma é um atuador que utiliza um diafragma como componente essencial para converter sinais de controle em movimento mecânico ou força para operar outros equipamentos.
Formal Axioms
Semi-formal (Aristotelian)
DiaphragmActuator ⊑ Actuator ⊓ ∃hasComponentPartAtAllTimes.Diaphragm
First-Order Logic Theory
Loading…
▸ Stored override
∀x(DiaphragmActuator(x) → (Actuator(x) ∧ ∃y(Diaphragm(y) ∧ hasComponentPartAtAllTimes(x,y))))
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: DiaphragmActuator
<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" ;
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 "2026-10-07"^^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
:COPI_0000407 rdf:type owl:Class ; # ActuationFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000408 # ActuationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000408 # ActuationProcess
] ;
rdfs:label "actuation function"@en ;
rdfs:label "função de atuação"@pt-br ;
iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in an ActuationProcess and that consists in converting control signals or energy inputs into mechanical motion or force to operate other equipment such as valves, dampers, or positioning mechanisms."@en ;
skos:definition "A DesignedFunction that is realized in an ActuationProcess and that consists in converting control signals or energy inputs into mechanical motion or force to operate other equipment such as valves, dampers, or positioning mechanisms."@en .
### Process type
:COPI_0000408 rdf:type owl:Class ; # ActuationProcess
rdfs:subClassOf iof-core:PlannedProcess ;
rdfs:label "actuation process"@en ;
rdfs:label "processo de atuação"@pt-br ;
iof-av:naturalLanguageDefinition "A PlannedProcess in which a control signal or energy input is converted by an actuator into mechanical motion or force that operates or positions another piece of equipment according to control requirements."@en ;
skos:definition "A PlannedProcess in which a control signal or energy input is converted by an actuator into mechanical motion or force that operates or positions another piece of equipment according to control requirements."@en .
:COPI_0000408 # ActuationProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000045 # ControlSignal
] .
### Equipment universal: DiaphragmActuator
:COPI_0000248 rdf:type owl:Class ; # DiaphragmActuator
rdfs:subClassOf :COPI_0000207 ; # Actuator
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000407 # ActuationFunction
] ;
rdfs:label "diaphragm actuator"@en ;
rdfs:label "atuador de diafragma"@pt-br ;
iof-av:naturalLanguageDefinition "A diaphragm actuator is an actuator that uses a diaphragm as an essential component for converting control signals into mechanical motion or force to operate other equipment."@en ;
skos:definition "A diaphragm actuator is an actuator that uses a diaphragm as an essential component for converting control signals into mechanical motion or force to operate other equipment."@en ;
iof-av:naturalLanguageDefinition "Um atuador de diafragma é um atuador que utiliza um diafragma como componente essencial para converter sinais de controle em movimento mecânico ou força para operar outros equipamentos."@pt-br ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Classification basis is constructive - identity given by diaphragm mechanism. Under OWA, sufficient conditions would force any equipment with a diaphragm component to be classified as a diaphragm actuator, potentially including complex hybrid systems or custom equipment where the diaphragm serves auxiliary functions. Starting with necessary conditions protects against such false positives."@en ;
rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000059 ] ;
skos:definition "[ISO 15926-4] A <DIAPHRAGM ACTUATOR> is an <INSTRUMENTATION ITEM> and a <CONTROLLED ACTUATOR> that is using a <DIAPHRAGM>"@en .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
ActuationFunction
⊑ DesignedFunction
Realized in
ActuationProcess
⊑ PlannedProcess
Reusing the existing ActuationFunction from the already-enriched 'actuator' class, as diaphragm actuator is a constructive subtype sharing the same identity-giving function but distinguished by its diaphragm-based mechanism.
2
Genus Determination
Actuator
The source definition states this is a CONTROLLED ACTUATOR, and 'actuator' is already enriched in our ontology as the most specific appropriate superclass. This follows genus proximum principle - prefer the most specific existing superclass rather than jumping to Assembly directly.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
While the definition mentions diaphragm as essential (included in differentia), no component terms are provided in the Known Component Terms list, and the source definition does not specify other necessary parts. The diaphragm itself cannot be formally added as a part since 'Diaphragm' is not in the Known Component Terms list.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
ControlSignal
— control signal (pneumatic, hydraulic, or electrical)
Outputs (O)
—
Transformation (T)
control signal converted to mechanical force/motion through diaphragm deflection mechanism
Actuators transform control signals into mechanical output for positioning or operating other equipment. The diaphragm mechanism enables this transformation by deflecting under fluid pressure or other input to produce mechanical motion.
5
Axiom Mode Decision
Necessary conditions only
— modelled as a primitive universal
(⊑, SubClassOf). Identity is grounded in designed
function and cannot be reduced to a property checklist.
Classification basis is constructive - identity given by diaphragm mechanism. Under OWA, sufficient conditions would force any equipment with a diaphragm component to be classified as a diaphragm actuator, potentially including complex hybrid systems or custom equipment where the diaphragm serves auxiliary functions. Starting with necessary conditions protects against such false positives.
Cross-Standard Observations
Only one source (ISO 15926-4) provides a definition. The definition is brief but structurally clear, emphasizing the diaphragm mechanism as the key distinguishing feature. No other standards available for comparison.
