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.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
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.
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.
What it is for: Measuring weight or mass.
It can be explain types and mechanisms; relay legal metrology; describe named types; relay accuracy factors.
Distinguishing features
Weight measurement
Many types and sizes
Legal metrology for trade
Calibration-dependent
What it looks like
Platforms, pans or bridges with a dial or digital readout showing weight.
Physical character
legal metrology: trade scales verified and stamped note
load cell: strain-gauge sensor note - in electronic scales
registry parents: dynamometer, measuring instrument note
How it is recognised
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
Related models
is a kind of - in registry terms
uses - in electronic types
is contrasted with - subtype
is contrasted with - siege engine sense
In practice
Families and kinds
balance scales
spring scales
electronic load-cell scales
weighbridges
Standards and regulation
OIML recommendations for weighing instruments
Legal metrology verification for trade scales
ISO calibration standards
Failure modes and hazards
Trade fraud from inaccurate scales
Calibration and levelling errors
Confusing the trebuchet senses
Also called
+3
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What a weighing scale is.
Definition.
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.
Science.
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.
Regulation.
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.
Sources.
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
What the second pass must settle
- Should weighbridges be a separate entry?
- How should legal metrology rules be linked?
- Should the balance be a separate entry?