weighing scale
Let an agent explain weighing scales, relay types, mechanisms, legal metrology and accuracy from measurement sources, describe the named types and the precision balance sense of trebuchet, and distinguish scales from balances as a subtype, load cells, and the trebuchet siege engine.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What a weighing scale is.
Definition
Definition.
Definition
Definition.
- What is a weighing scale, and how does it differ from balances, load cells and the trebuchet siege engine? definition
- Is the scale used for trade, in which case it must be verified under legal metrology rules? boundary
Types
Named types.
Types
Types.
- What are bathroom, bench and axle-load scales, weighbridges and the trebuchet balance? definition
- Which entry fits the specific scale? action
Mechanism Mechanisms.
Balances
Balance scales.
Balances
Balances.
- How do balance scales compare masses? provenance
- Which references are standard? provenance
Load cells
Electronic scales.
Load cells
Load cells.
- How do load cells enable electronic weighing? provenance
- Which sources are cited? provenance
Metrology Legal metrology.
Trade
Trade scales.
Trade
Trade.
- Why must trade scales be verified and stamped? provenance
- Which entry fits legal metrology? action
Calibration
Calibration.
Calibration
Calibration.
- How does calibration keep scales accurate? measurement
- Is the information current? boundary
Context Uses.
Uses
Uses.
Uses
Uses.
- How are scales used in commerce, health and industry? provenance
- Which entry fits weighbridge? action
History
History.
History
History.
- How did balance and spring scales develop historically? provenance
- Is the information accurate? boundary
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.OBJ
- Other names and narrower kinds
- weighbridge, railway weighbridge, axle load scale, trébuchet, bathroom scale, bench scale, precision balance, hydrostatic balance, spring scale, electronic scale, torsion pendulum, Wii Balance Board
What it is Filled
An instrument for measuring the weight or mass of objects, ranging from balance scales that compare masses against known weights to spring scales and modern electronic scales using load cells, with types the registry aliases name such as bathroom, bench and axle-load scales, weighbridges including railway weighbridges for whole vehicles, and the trebuchet, here meaning a delicate precision balance rather than the siege engine; scales are used in commerce, health, industry and science and, for trade use, must be verified and stamped under legal metrology rules. Accuracy depends on calibration, levelling and avoiding drafts.
Why it exists Filled
Let an agent explain weighing scales, relay types, mechanisms, legal metrology and accuracy from measurement sources, describe the named types and the precision balance sense of trebuchet, and distinguish scales from balances as a subtype, load cells, and the trebuchet siege engine.
Distinguishing features Filled
- Weight measurement
- Many types and sizes
- Legal metrology for trade
- Calibration-dependent
What robots and AI may and may not do Filled
Must not
- Use or tamper with a scale so that it gives false weights in trade.
- Use an unverified scale for legal-for-trade sales or for medicine doses.
- Override overload limits on weighbridges or axle-load scales.
- Confuse the precision balance called a trebuchet with the siege engine.
Only with a human decision
- Certifying a scale for trade or legal use.
May
- Read and record weights from scales the agent is authorized to use.
- Report when a scale is out of calibration or not level.
Moral aspects Filled
- Short weight cheats buyers, often the poorest.
- Weighing errors in medicine and freight can endanger lives.
Who is affected
- Buyers and sellers
- Patients
- Hauliers
Owners Filled
Steward
The owner or operator of the scale; legal metrology authorities verify scales used in trade.
Links to other meta-models Filled
parent
- Q11223329 - registry parent class
- Q2041172 - registry parent class
- Q8205328 - registry parent class
related
- measuring instrument - in registry terms
- load cell - in electronic types
- balance - subtype
- trebuchet - siege engine sense
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.weighing-scale
- Wikidata: Q134566 (https://www.wikidata.org/wiki/Q134566)
Direct properties required Filled
- legal metrology: trade scales verified and stamped note
- load cell: strain-gauge sensor note - in electronic scales
- registry parents: dynamometer, measuring instrument note
Recognition required Filled
- Instrument measuring weight or mass
- Weighbridge, railway weighbridge, axle load scale, trebuchet balance, bathroom scale, bench scale
- Balances compare masses; load cells are sensors inside scales; the trebuchet siege engine is a catapult, a different sense
- Platforms, pans or bridges with a dial or digital readout showing weight.
Capabilities and actions required Filled
- explain types and mechanisms
- relay legal metrology
- describe named types
- relay accuracy factors
Hazards and failure modes required Filled
- Trade fraud from inaccurate scales
- Calibration and levelling errors
- Confusing the trebuchet senses
Standards and interfaces required Filled
- OIML recommendations for weighing instruments
- Legal metrology verification for trade scales
- ISO calibration standards
Context of use required Filled
- Measuring weight or mass.
- balance scales
- spring scales
- electronic load-cell scales
- weighbridges
Sources Filled
- Wikidata item Q134566: weighing scale - identity and sense of the item
- Wikipedia: Weighing scale - general description of the item
Open questions
- Should weighbridges be a separate entry?
- How should legal metrology rules be linked?
- Should the balance be a separate entry?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q134566/spec.json