exported
equivalent
dew point analyser
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Dewpointanalyser
Generated on 2026-04-16
Natural Language Definition
EN
A dew point analyser is an instrument that bears a dew point measurement function.
PT-BR
Um analisador de ponto de orvalho é um instrumento que possui uma função de medição de ponto de orvalho.
Formal Axioms
Semi-formal (Aristotelian)
Every dew point analyser is an instrument that has the function to determine the dew point of a substance
First-Order Logic Theory
Loading…
▸ Stored override
∀x(DewPointAnalyser(x) ↔ Instrument(x) ∧ ∃f(DewPointMeasurementFunction(f) ∧ bearerOf(x,f)))
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: DewPointAnalyser
<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_0000467 rdf:type owl:Class ; # DewPointMeasurementFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000468 # DewPointMeasurementProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000468 # DewPointMeasurementProcess
] ;
rdfs:label "dew point measurement function"@en ;
rdfs:label "função de medição de ponto de orvalho"@pt-br .
### Process type
:COPI_0000468 rdf:type owl:Class ; # DewPointMeasurementProcess
rdfs:subClassOf iof-core:MeasurementProcess ;
rdfs:label "dew point measurement process"@en ;
rdfs:label "processo de medição de ponto de orvalho"@pt-br .
iof-core:MeasurementProcess rdf:type owl:Class .
:COPI_0000468 # DewPointMeasurementProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000039 # PortionOfGas
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom iof-core:MeasurementInformationContentEntity
] .
### Equipment universal: DewPointAnalyser
:COPI_0000247 rdf:type owl:Class ; # DewPointAnalyser
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_0000467 # DewPointMeasurementFunction
]
)
] ;
rdfs:label "dew point analyser"@en ;
rdfs:label "analisador de ponto de orvalho"@pt-br ;
iof-av:naturalLanguageDefinition "A dew point analyser is an instrument that bears a dew point measurement function."@en ;
skos:definition "A dew point analyser is an instrument that bears a dew point measurement function."@en ;
iof-av:naturalLanguageDefinition "Um analisador de ponto de orvalho é um instrumento que possui uma função de medição de ponto de orvalho."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every dew point analyser is an instrument that has the function to determine the dew point of a substance"@en ;
iof-av:firstOrderLogicAxiom "∀x(DewPointAnalyser(x) ↔ Instrument(x) ∧ ∃f(DewPointMeasurementFunction(f) ∧ bearerOf(x,f)))"@en ;
skos:definition "[ISO 15926-4] A <DEW POINT ANALYSER> is a <PROCESS ANALYSER> intended to determine the dew point of a substance"@en ;
skos:definition "[CFIHOS] An analysing instrument intended to determine the dew point of a substance."@en .
# Disjointness: DewPointAnalyser and FlowMeter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000247 :COPI_0000278 ) . # DewPointAnalyser, FlowMeter
# Disjointness: DewPointAnalyser and PressureGauge
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000247 :COPI_0000143 ) . # DewPointAnalyser, PressureGauge
# Disjointness: DewPointAnalyser and Densitometer
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000247 :COPI_0000245 ) . # DewPointAnalyser, Densitometer
Axiomatization Decision Log
1
Identity-Giving Function
Function class
DewPointMeasurementFunction
⊑ DesignedFunction
Realized in
DewPointMeasurementProcess
⊑ MeasurementProcess
The identity-giving function is the determination of dew point - the temperature at which water vapor in a gas begins to condense. This is a specific analytical measurement function distinct from other temperature or moisture measurement functions.
2
Genus Determination
Instrument
Both source definitions indicate this is an analyzing instrument or process analyser. While 'process analyser' from ISO15926 is more specific, 'Instrument' is the appropriate genus level that encompasses all measurement and analytical devices. The enriched classes list shows many instruments but no 'ProcessAnalyser' class yet defined.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These are the fundamental components required for any dew point measurement - a chamber for the sample, temperature sensing, and condensation detection capability.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfGas
— contains water vapor
Outputs (O)
MeasurementInformationContentEntity
— represents dew point temperature
Transformation (T)
analytical measurement - converts physical property to measurement signal
Takes a gas sample containing water vapor and produces a measurement signal indicating the dew point temperature through analytical measurement process.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
FlowMeter
PressureGauge
Densitometer
C2: FlowMeter, Densitometer. C?: PressureGauge [kind_ambiguous]. These instruments have incompatible measurement signatures - they measure different physical properties (flow, pressure, density) rather than dew point temperature.
Cross-Standard Observations
Both ISO15926 and CFIHOS provide consistent functional definitions focusing on the dew point determination capability. ISO15926 specifies it as a subtype of process analyser while CFIHOS uses the broader term 'analysing instrument'.
Source Definitions
2 sources
ISO 15926-4
DEW POINT ANALYSER ↗
Definition text withheld (copyrighted standard) — follow the source link above.
CFIHOS
dew point analyser
Definition text withheld (copyrighted standard) — follow the source link above.
Metadata
| Ontology | COPI |
| Research group | INF-UFRGS-Ontologies |
| Funding | CNPq INF-UFRGS-ENERGIA |
| Project | OntoKG / Petrobras |
| ID | #223 |
| Cluster | dew point analyser |
| Status | exported |
| Axiom mode | equivalent |
| Created | 2026-04-16 |
| Updated | 2026-09-08 |
ISA 5.1-2022 P&ID Symbol
5_2_3/000_conductivity_moisture_etc.png
