exported
equivalent
phase sequence meter
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Phasesequencemeter
Generated on 2026-04-13
Natural Language Definition
EN
A phase sequence meter is an electric measuring instrument that bears a phase sequence measurement function to determine and indicate the sequence in which the instantaneous voltages of phase conductors reach their maximum value in a polyphase electrical system.
PT-BR
Um medidor de sequência de fases é um instrumento de medição elétrica que possui uma função de medição de sequência de fases para determinar e indicar a sequência na qual as tensões instantâneas dos condutores de fase atingem seu valor máximo em um sistema elétrico polifásico.
Formal Axioms
Semi-formal (Aristotelian)
Every phase sequence meter is an electric measuring instrument that has the function to measure phase sequence and has as input polyphase electrical signals.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(PhaseSequenceMeter(x) ↔ ElectricMeasuringInstrument(x) ∧ ∃f(PhaseSequenceMeasurementFunction(f) ∧ bearerOf(x,f)) ∧ ∃s(InformationContentEntity(s) ∧ hasInput(x,s)))
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: PhaseSequenceMeter
<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_0000181 rdf:type owl:Class ; # PhaseSequenceMeasurementFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000589 # PhaseSequenceMeasurementProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000589 # PhaseSequenceMeasurementProcess
] ;
rdfs:label "phase sequence measurement function"@en ;
rdfs:label "função de medição de sequência de fases"@pt-br .
### Process type
:COPI_0000589 rdf:type owl:Class ; # PhaseSequenceMeasurementProcess
rdfs:subClassOf iof-core:MeasurementProcess ;
rdfs:label "phase sequence measurement process"@en ;
rdfs:label "processo de medição de sequência de fases"@pt-br .
iof-core:MeasurementProcess rdf:type owl:Class .
:COPI_0000589 # PhaseSequenceMeasurementProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom iof-core:InformationContentEntity
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000046 # VisualIndication
] .
### Equipment universal: PhaseSequenceMeter
:COPI_0000137 rdf:type owl:Class ; # PhaseSequenceMeter
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
:COPI_0000091 # Instrument
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000181 # PhaseSequenceMeasurementFunction
]
)
] ;
rdfs:label "phase sequence meter"@en ;
rdfs:label "medidor de sequência de fases"@pt-br ;
iof-av:naturalLanguageDefinition "A phase sequence meter is an electric measuring instrument that bears a phase sequence measurement function to determine and indicate the sequence in which the instantaneous voltages of phase conductors reach their maximum value in a polyphase electrical system."@en ;
skos:definition "A phase sequence meter is an electric measuring instrument that bears a phase sequence measurement function to determine and indicate the sequence in which the instantaneous voltages of phase conductors reach their maximum value in a polyphase electrical system."@en ;
iof-av:naturalLanguageDefinition "Um medidor de sequência de fases é um instrumento de medição elétrica que possui uma função de medição de sequência de fases para determinar e indicar a sequência na qual as tensões instantâneas dos condutores de fase atingem seu valor máximo em um sistema elétrico polifásico."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every phase sequence meter is an electric measuring instrument that has the function to measure phase sequence and has as input polyphase electrical signals."@en ;
iof-av:firstOrderLogicAxiom "∀x(PhaseSequenceMeter(x) ↔ ElectricMeasuringInstrument(x) ∧ ∃f(PhaseSequenceMeasurementFunction(f) ∧ bearerOf(x,f)) ∧ ∃s(InformationContentEntity(s) ∧ hasInput(x,s)))"@en ;
skos:definition "[ISO 15926-4] A <PHASE SEQUENCE METER> is an <ELECTRIC VARIABLE MEASURING INSTRUMENT> that indicates, on a polyphase system, the sequence in which the instantaneous voltage of the phase conductors reach their maximum value"@en .
# Disjointness: PhaseSequenceMeter and FlowMeter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000137 :COPI_0000278 ) . # PhaseSequenceMeter, FlowMeter
Axiomatization Decision Log
1
Identity-Giving Function
Function class
PhaseSequenceMeasurementFunction
⊑ DesignedFunction
Realized in
PhaseSequenceMeasurementProcess
⊑ MeasurementProcess
The identity-giving function is to measure and indicate the phase sequence in polyphase electrical systems - specifically determining the order in which phase conductors reach their maximum instantaneous voltage. This is a specialized electrical measurement function distinct from general voltage or current measurement.
2
Genus Determination
Instrument
Following the ISO 15926 hierarchy, the direct parent is 'ELECTRIC VARIABLE MEASURING INSTRUMENT'. This maps to ElectricMeasuringInstrument as the most specific appropriate superclass. While no instrument classes are yet enriched in our ontology, this is more specific than jumping directly to MaterialArtifact. An electric measuring instrument is a single causally unified artifact designed for electrical measurements.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These parts are fundamental to any phase sequence meter: phase detection circuitry to analyze timing relationships, electrical connections to access the system, and indication means to communicate results.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
InformationContentEntity
— typically three-phase, with measurable voltage levels
Outputs (O)
VisualIndication
— binary or coded indication of sequence order
Transformation (T)
electrical signal analysis and information extraction - converts temporal voltage patterns into sequence indication
Takes polyphase electrical signals and transforms the temporal phase relationships into an interpretable sequence indication without modifying the electrical power flow.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
FlowMeter
C?: FlowMeter [kind_ambiguous]. Incompatible signatures: phase sequence meters process electrical signals for timing analysis, while flow/temperature/pressure instruments process different physical phenomena with incompatible input/output types.
Cross-Standard Observations
Only one source (ISO 15926) defines this concept. The definition is clear and functionally oriented, focusing on the specific measurement capability rather than constructive details.
