exported
equivalent
temperature indicator
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Temperatureindicator
Generated on 2026-05-02
Natural Language Definition
EN
A temperature indicator is an indicator that measures temperature and displays the measured value locally at the instrument location.
PT-BR
Um indicador de temperatura é um indicador que mede temperatura e exibe o valor medido localmente na localização do instrumento.
Formal Axioms
Semi-formal (Aristotelian)
Every temperature indicator is an instrument that has the function of temperature indication and has component parts including a temperature sensing element and a local display.
First-Order Logic Theory
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▸ Stored override
∀x (TemperatureIndicator(x) ↔ (Instrument(x) ∧ ∃f (TemperatureIndicationFunction(f) ∧ bearerOf(x,f)) ∧ ∃s (SensingElement(s) ∧ hasComponentPartAtAllTimes(x,s)) ∧ ∃d (LocalDisplay(d) ∧ hasComponentPartAtAllTimes(x,d))))
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: TemperatureIndicator
<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_0000173 rdf:type owl:Class ; # TemperatureIndicationFunction
rdfs:subClassOf :COPI_0000028 ; # IndicationFunction
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000662 # TemperatureIndicationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000662 # TemperatureIndicationProcess
] ;
rdfs:label "temperature indication function"@en ;
rdfs:label "função de indicação de temperatura"@pt-br .
:COPI_0000028 rdf:type owl:Class . # IndicationFunction
### Process type
:COPI_0000662 rdf:type owl:Class ; # TemperatureIndicationProcess
rdfs:subClassOf iof-core:MeasurementProcess ;
rdfs:label "temperature indication process"@en ;
rdfs:label "processo de indicação de temperatura"@pt-br .
iof-core:MeasurementProcess rdf:type owl:Class .
:COPI_0000662 # TemperatureIndicationProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000047 # TemperatureMeasurementResult
] .
### Equipment universal: TemperatureIndicator
:COPI_0000154 rdf:type owl:Class ; # TemperatureIndicator
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
:COPI_0000127 # Indicator
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000173 # TemperatureIndicationFunction
]
)
] ;
rdfs:label "temperature indicator"@en ;
rdfs:label "indicador de temperatura"@pt-br ;
iof-av:naturalLanguageDefinition "A temperature indicator is an indicator that measures temperature and displays the measured value locally at the instrument location."@en ;
skos:definition "A temperature indicator is an indicator that measures temperature and displays the measured value locally at the instrument location."@en ;
iof-av:naturalLanguageDefinition "Um indicador de temperatura é um indicador que mede temperatura e exibe o valor medido localmente na localização do instrumento."@pt-br .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
TemperatureIndicationFunction
⊑ IndicationFunction
Realized in
TemperatureIndicationProcess
⊑ MeasurementProcess
The identity-giving function is to measure temperature and display the measured value locally. This function already exists in the enriched classes for 'analogue temperature indicator', so we reuse the same function name. The function is distinct from temperature transmission (which produces remote signals) by being limited to local indication.
✓
Expert review — Accepted
2
Genus Determination
Indicator
Temperature indicator is a type of measuring instrument. While 'Instrument' appears as a genus in several enriched classes (indicator, controller, detector, etc.), it is not itself in the enriched classes list, so genus_enriched=false. The concept belongs to the Assembly branch as it consists of multiple connected components (sensing element, linkage, display) that form a causally unified measurement device.
✓
Expert review — Accepted
"genus: Instrument → indicator (id 133, most specific enriched superclass); bfo_root → Assembly"
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These three components are essential for any temperature indicator: sensing element to detect temperature, display to show the value, and some form of linkage to transmit the signal from sensor to display.
✓
Expert review — Accepted
"MechanicalLinkage → is_subtype_specific=true (digital TIs have no mechanical linkage)"
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
—
Outputs (O)
TemperatureMeasurementResult
— visual indication readable by operator at instrument location
Transformation (T)
temperature sensing and local indication without remote signal generation
Temperature indicators have a simple signature: they sense temperature at one location and display it locally. Unlike transmitters, they do not produce standardized remote output signals.
✓
Expert review — Accepted
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
✓
Expert review — Accepted
Cross-Standard Observations
Only one source definition provided. The ISA definition emphasizes the distinction from temperature transmitters by noting the lack of standardized remote output signals, focusing on local indication only.
