exported
equivalent
conductivity transmitter
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Conductivitytransmitter
Generated on 2026-04-16
Natural Language Definition
EN
A conductivity transmitter is a transmitter that bears a conductivity measurement function.
PT-BR
Um transmissor de condutividade é um transmissor que possui uma função de medição de condutividade.
Formal Axioms
Semi-formal (Aristotelian)
Every conductivity transmitter is a transmitter that has the function to measure and transmit electrical conductivity of process fluids.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(ConductivityTransmitter(x) ↔ (Transmitter(x) ∧ ∃f(ConductivityMeasurementFunction(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: ConductivityTransmitter
<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_0000439 rdf:type owl:Class ; # ConductivityTransmissionFunction
rdfs:subClassOf :COPI_0000030 ; # SignalTransmissionFunction
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000440 # ConductivityTransmissionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000440 # ConductivityTransmissionProcess
] ;
rdfs:label "conductivity transmission function"@en ;
rdfs:label "função de transmissão de condutividade"@pt-br .
:COPI_0000030 rdf:type owl:Class . # SignalTransmissionFunction
### Process type
:COPI_0000440 rdf:type owl:Class ; # ConductivityTransmissionProcess
rdfs:subClassOf :COPI_0000035 ; # SignalTransmissionProcess
rdfs:label "conductivity transmission process"@en ;
rdfs:label "processo de transmissão de condutividade"@pt-br .
:COPI_0000035 rdf:type owl:Class . # SignalTransmissionProcess
:COPI_0000440 # ConductivityTransmissionProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom iof-core:InformationContentEntity
] .
### Equipment universal: ConductivityTransmitter
:COPI_0000233 rdf:type owl:Class ; # ConductivityTransmitter
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
:COPI_0000157 # Transmitter
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000439 # ConductivityTransmissionFunction
]
)
] ;
rdfs:label "conductivity transmitter"@en ;
rdfs:label "transmissor de condutividade"@pt-br ;
iof-av:naturalLanguageDefinition "A conductivity transmitter is a transmitter that bears a conductivity measurement function."@en ;
skos:definition "A conductivity transmitter is a transmitter that bears a conductivity measurement function."@en ;
iof-av:naturalLanguageDefinition "Um transmissor de condutividade é um transmissor que possui uma função de medição de condutividade."@pt-br ;
rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000058 ] ;
skos:definition "[ISO 15926-4] A <CONDUCTIVITY TRANSMITTER> is an <CONDUCTIVITY METER> and a <PROCESS VARIABLE TRANSMITTER>"@en ;
skos:definition "[CFIHOS] A transmitter that is intended to measure and transmit conductivity."@en .
# Disjointness: ConductivityTransmitter and TemperatureTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000233 :COPI_0000155 ) . # ConductivityTransmitter, TemperatureTransmitter
# Disjointness: ConductivityTransmitter and PressureTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000233 :COPI_0000144 ) . # ConductivityTransmitter, PressureTransmitter
# Disjointness: ConductivityTransmitter and FlowTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000233 :COPI_0000118 ) . # ConductivityTransmitter, FlowTransmitter
# Disjointness: ConductivityTransmitter and LevelTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000233 :COPI_0000131 ) . # ConductivityTransmitter, LevelTransmitter
Axiomatization Decision Log
1
Identity-Giving Function
Function class
ConductivityTransmissionFunction
⊑ SignalTransmissionFunction
Realized in
ConductivityTransmissionProcess
⊑ SignalTransmissionProcess
The identity-giving function combines conductivity measurement with signal transmission. This is a specialized subtype of SignalTransmissionFunction that specifically measures and transmits electrical conductivity of fluids.
2
Genus Determination
Transmitter
From parent_candidates, 'transmitter' is the most specific appropriate superclass and is already enriched in our ontology with SignalTransmissionFunction. PROCESS VARIABLE TRANSMITTER would be more specific but is not enriched. CONDUCTIVITY METER is a sibling measurement device but lacks the transmission capability that defines transmitters.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These parts are necessary for all conductivity transmitters regardless of specific technology. The conductivity sensor provides measurement capability while signal conditioning enables proper transmission.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— in contact with sensor electrodes
Outputs (O)
InformationContentEntity
— proportional to fluid conductivity
Transformation (T)
transduction of fluid conductivity to electrical signal
Conductivity transmitters measure electrical properties of process fluids and convert to standardized electrical signals for control systems.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
temperature transmitter
pressure transmitter
flow transmitter
level transmitter
C2: temperature transmitter, pressure transmitter, flow transmitter, level transmitter. Different measurement signatures - conductivity measurement is incompatible with temperature, pressure, flow rate, or level measurement as primary functions
Cross-Standard Observations
ISO 15926 models this as multiple inheritance (CONDUCTIVITY METER ∩ PROCESS VARIABLE TRANSMITTER) while CFIHOS uses a simpler functional definition. Both approaches are consistent with the functional classification basis.
Source Definitions
2 sources
ISO 15926-4
CONDUCTIVITY TRANSMITTER ↗
Definition text withheld (copyrighted standard) — follow the source link above.
CFIHOS
conductivity transmitter
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 | #222 |
| Cluster | conductivity transmitter |
| Status | exported |
| Axiom mode | equivalent |
| Created | 2026-04-16 |
| Updated | 2026-09-08 |
ISA 5.1-2022 P&ID Symbol
5_2_1/001_transmitter_with_integral_primary_element_bubble_format.png
