Wheatstone bridge
E698385
The Wheatstone bridge is an electrical circuit used to precisely measure unknown resistances by balancing two legs of a bridge network.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Wheatstone bridge canonical | 4 |
| wheatstone bridge circuit | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7805311 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Wheatstone bridge Context triple: [Charles Wheatstone, notableWork, Wheatstone bridge]
-
A.
Kelvin Bridge
Kelvin Bridge is a historic stone bridge spanning the River Kelvin in Glasgow, Scotland, linking the city’s West End to the Kelvinbridge area.
-
B.
Wheatstone
Wheatstone is a surname most famously associated with Sir Charles Wheatstone, the 19th-century English scientist and inventor known for his contributions to telegraphy and electrical measurement.
-
C.
Tomlinson Bridge
Tomlinson Bridge is a movable drawbridge in New Haven, Connecticut, carrying traffic over the Quinnipiac River and serving as a key local transportation link.
-
D.
Ohm
The Ohm is a river in the German state of Hesse that flows through towns such as Marburg before joining the Lahn.
-
E.
Keith-Albee circuit
The Keith-Albee circuit was a major early 20th-century American vaudeville theater chain that played a central role in the development of the modern entertainment industry.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Wheatstone bridge Target entity description: The Wheatstone bridge is an electrical circuit used to precisely measure unknown resistances by balancing two legs of a bridge network.
-
A.
Kelvin Bridge
Kelvin Bridge is a historic stone bridge spanning the River Kelvin in Glasgow, Scotland, linking the city’s West End to the Kelvinbridge area.
-
B.
Wheatstone
Wheatstone is a surname most famously associated with Sir Charles Wheatstone, the 19th-century English scientist and inventor known for his contributions to telegraphy and electrical measurement.
-
C.
Tomlinson Bridge
Tomlinson Bridge is a movable drawbridge in New Haven, Connecticut, carrying traffic over the Quinnipiac River and serving as a key local transportation link.
-
D.
Ohm
The Ohm is a river in the German state of Hesse that flows through towns such as Marburg before joining the Lahn.
-
E.
Keith-Albee circuit
The Keith-Albee circuit was a major early 20th-century American vaudeville theater chain that played a central role in the development of the modern entertainment industry.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
electrical circuit
ⓘ
measurement instrument ⓘ |
| advantage |
high accuracy in resistance measurement
ⓘ
insensitivity to source voltage fluctuations at balance ⓘ null method reduces instrument error ⓘ |
| appliedIn |
instrumentation amplifiers
ⓘ
laboratory resistance measurement ⓘ pressure sensors ⓘ strain gauge load cells ⓘ temperature compensation circuits ⓘ |
| balanceDetectedBy |
zero current through galvanometer
ⓘ
zero voltage between detector terminals ⓘ |
| canBe |
balanced
ⓘ
unbalanced ⓘ |
| conditionForBalance | ratio of one pair of resistances equals ratio of the other pair ⓘ |
| field | electrical engineering ⓘ |
| hasComponent |
detector
ⓘ
four resistive arms ⓘ galvanometer ⓘ one unknown resistor ⓘ one variable or known resistor ⓘ two known resistors ⓘ voltage source ⓘ |
| hasVariant |
AC bridge
ⓘ
Kelvin bridge ⓘ Maxwell bridge ⓘ
linked to:
Kelvin bridge
unbalanced Wheatstone bridge ⓘ |
| inventedBy | Samuel Hunter Christie ⓘ |
| limitation |
less suitable for very high resistances without modification
ⓘ
less suitable for very low resistances without modification ⓘ requires stable temperature for high accuracy ⓘ |
| measurementType | static resistance measurement ⓘ |
| namedAfter |
Charles Wheatstone
ⓘ
linked to:
Charles Wheatstone (historical)
|
| outputQuantity | voltage difference between bridge midpoints ⓘ |
| popularizedBy |
Charles Wheatstone
ⓘ
linked to:
Charles Wheatstone (historical)
|
| principle |
bridge balance
ⓘ
null measurement ⓘ |
| requires | DC excitation source in basic form ⓘ |
| typicalConfiguration | diamond-shaped resistor network ⓘ |
| usedFor |
bridge-type transducer measurement
ⓘ
measuring unknown resistance ⓘ precise resistance measurement ⓘ sensor signal conditioning ⓘ strain gauge measurement ⓘ temperature sensor measurement ⓘ |
| yearPopularized | 1843 ⓘ |
| yearProposed | 1833 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Wheatstone bridge Description of subject: The Wheatstone bridge is an electrical circuit used to precisely measure unknown resistances by balancing two legs of a bridge network.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Charles Wheatstone (historical)
subject linked to:
Charles Wheatstone (historical)
subject linked to:
Wheatstone
linked to: Wheatstone bridge