Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
position transmitter
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
Position transmitter is defined by its designed function to measure position/displacement and transmit corresponding signals, not by its internal mechanism or construction. Any sensing technology (potentiometric, LVDT, magnetic, optical) can implement this function.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
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Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
PositionTransmissionFunction → PositionMeasurementAndTransmissionProcess ⊑ MeasurementProcess
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COPI-Core operation
MeasurementProcess via process parent MeasurementProcess
LLM rationale:
The identity-giving function is to measure position/displacement and convert it to a standardized signal for transmission. This is a specialized subtype of SignalTransmissionFunction that specifically deals with position variables.
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Expert review
2
Genus Proximus
✓ done
Transmitter · MaterialArtifact
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Genus (genus proximum)
Most specific superclass — may be a domain class like "Valve" or an IOF-Core root.
BFO/IOF-Core Root
bfo:Object branch
bfo:ObjectAggregate branch
bfo:ImmaterialEntity branch
LLM rationale:
From parent_candidates, 'transmitter' is the most specific and appropriate genus, already enriched in our ontology with SignalTransmissionFunction. PROCESS VARIABLE TRANSMITTER would be more specific but is not yet in our system. Position transmitter is clearly a subtype of transmitter that specializes in position measurement.
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Expert review
3
Differentia Specifica
✓ done
∃participatesIn.PositionMeasurementAndTransmissionProcess ⊓ ∃bearerOf.PositionMeasurementCapability
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Conditions that distinguish
Position Transmitter
from sibling classes under genus
Transmitter.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The differentia focuses on the specific input domain (position/displacement signals) and measurement capability, which distinguishes it from other transmitter types that handle different process variables.
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Expert review
4
Necessary Parts
✓ done
no necessary parts
▼
Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These are the essential components any position transmitter must have: a position-sensing element, signal processing electronics, and protective housing.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PositionMeasurementResult → InformationContentEntity
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Position transmitters transduce mechanical position information into standardized signals for process control systems, requiring power input and producing calibrated output signals.
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Expert review
More
Alternative labels
none
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Synonyms / alternative labels (comma-separated) — skos:altLabel
Language auto-detected on export (PT if the label contains accents, EN otherwise).
Properties as BFO qualities
0 of 15 selected
▼
Select which CFIHOS/DEXPI properties inhere in every instance of Position Transmitter as
bfo:Quality subclasses.
Each selected property →
:PositionTransmitterQuality ⊑ bfo:Quality, inheres in :PositionTransmitter
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Position Transmitter.
Write the restriction block in Turtle syntax (without the leading
rdfs:subClassOf).
Example: [ owl:onProperty :hasPart ; owl:someValuesFrom :Wellhead ]
Cross-standard divergences
none detected yet
▼
Click "Detect divergences" to analyse cross-standard disagreements for this cluster.
Source Definitions (3)
POSITION TRANSMITTER — ClassOfFunctionalObject
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cfihos V2.0
position transmitter — TagAndEquipmentClass
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Position Transmitter — ISA Tag Abbreviation
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Provenance tiers (3)
Sources the pipeline cited while building this entry. Verbatim = the quote was copied word-for-word from that source; summary = paraphrased.
OWL/Turtle preview
Download .ttl
Numeric
COPI_* IRIs from copi-iri-map.tsv, with the readable name as a trailing comment. Names not yet in the map stay readable.
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ID 51 · claude-sonnet-4-20250514
Created 2026-04-13 22:16
Updated 2026-09-08 12:26
