exported
necessary
electric actuator
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Electricactuator
Generated on 2026-04-16
Natural Language Definition
EN
An electric actuator is an actuator that converts electrical energy to mechanical movement through an electric-to-mechanical converter component and operates via electrical signal input.
PT-BR
Um atuador elétrico é um atuador que converte energia elétrica em movimento mecânico através de um componente conversor elétrico-mecânico e opera via entrada de sinal elétrico.
Formal Axioms
Semi-formal (Aristotelian)
Every electric actuator is an actuator that has an electric-to-mechanical converter component at all times and has electrical signal input.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(ElectricActuator(x) → Actuator(x) ∧ ∃y(ElectricToMechanicalConverter(y) ∧ hasComponentPartAtAllTimes(x,y)) ∧ ∃z(InformationContentEntity(z) ∧ hasInput(x,z)))
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: ElectricActuator
<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 "2026-10-08"^^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 .
### 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 .
:COPI_0000408 # ActuationProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom iof-core:InformationContentEntity
] .
### Equipment universal: ElectricActuator
:COPI_0000260 rdf:type owl:Class ; # ElectricActuator
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 "electric actuator"@en ;
rdfs:label "atuador elétrico"@pt-br ;
iof-av:naturalLanguageDefinition "An electric actuator is an actuator that converts electrical energy to mechanical movement through an electric-to-mechanical converter component and operates via electrical signal input."@en ;
skos:definition "An electric actuator is an actuator that converts electrical energy to mechanical movement through an electric-to-mechanical converter component and operates via electrical signal input."@en ;
iof-av:naturalLanguageDefinition "Um atuador elétrico é um atuador que converte energia elétrica em movimento mecânico através de um componente conversor elétrico-mecânico e opera via entrada de sinal elétrico."@pt-br ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Constructive classification based on electrical energy conversion mechanism. Under OWA, asserting equivalence would force any artifact with electrical-to-mechanical conversion into this category, potentially misclassifying specialized hybrid equipment or complex electrical machinery that should not be categorized as standard actuators."@en ;
rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000058 ] ;
skos:definition "[ISO 15926-4] An <ELECTRIC ACTUATOR> is an <INSTRUMENTATION ITEM> and a <CONTROLLED ACTUATOR> and an <ELECTRICAL APPARATUS> and an <ELECTRIC TO MECHANICAL ENERGY CONVERTER> that produces a specified movement when actuated by electrical energy"@en ;
skos:definition "[CFIHOS] An actuator that produces a specified movement when excited by an electric signal."@en ;
skos:definition "[POSC Caesar] An actuator that produces a specified movement when excited by an electric signal."@en .
# Disjointness: ElectricActuator and PneumaticActuator
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000260 :COPI_0000327 ) . # ElectricActuator, PneumaticActuator
# Disjointness: ElectricActuator and HydraulicActuator
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000260 :COPI_0000298 ) . # ElectricActuator, HydraulicActuator
Axiomatization Decision Log
1
Identity-Giving Function
Function class
ActuationFunction
⊑ DesignedFunction
Realized in
ActuationProcess
⊑ PlannedProcess
Electric actuators share the same identity-giving function as all actuators - to produce specified movement or positioning. The electrical energy source is a mechanism differentia, not a distinct function type.
2
Genus Determination
Actuator
Actuator is the most specific appropriate superclass and is already enriched in our ontology. Electric actuator is clearly a subtype of actuator, distinguished by its electrical energy conversion mechanism. The parent_candidates list includes 'actuator' which is the correct choice over the more general categories like INSTRUMENTATION ITEM or ELECTRICAL APPARATUS.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These parts are necessary for any electric actuator to function: energy conversion capability, electrical interface, and protective housing for electrical components.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
InformationContentEntity
— control signal with specified voltage/current
Outputs (O)
—
Transformation (T)
electrical energy converted to mechanical energy with controlled positioning
Electric actuators transform electrical input signals and power into controlled mechanical movement, which is the fundamental process signature that distinguishes them from other energy conversion types.
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.
Constructive classification based on electrical energy conversion mechanism. Under OWA, asserting equivalence would force any artifact with electrical-to-mechanical conversion into this category, potentially misclassifying specialized hybrid equipment or complex electrical machinery that should not be categorized as standard actuators.
Disjointness Axioms
PneumaticActuator
HydraulicActuator
C1: PneumaticActuator, HydraulicActuator. Different energy conversion mechanisms are mutually exclusive - an actuator cannot simultaneously be primarily electric and primarily pneumatic/hydraulic powered
Cross-Standard Observations
All sources consistently define electric actuator by its electrical energy input and mechanical movement output. ISO 15926 provides the most comprehensive classification showing it as both an electrical apparatus and mechanical converter. The electrical signal excitation is consistently mentioned across sources.
