thermometer
Let an agent explain thermometers, relay principles, types, scales, calibration and safe use from metrology and health sources, describe the named instruments, advise safe handling of broken mercury thermometers and fever guidance for infants, and distinguish thermometers from thermostats, thermographs, pyrometers as high-temperature sensors and hygrometers.
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 thermometers, relay principles, types, scales, calibration and safe use from metrology and health sources, describe the named instruments, advise safe handling of broken mercury thermometers and fever guidance for infants, and distinguish thermometers from thermostats, thermographs, pyrometers as high-temperature sensors and hygrometers.
An instrument that measures temperature, historically using the expansion of liquids such as mercury or alcohol in a glass tube and today often electronic sensors such as thermistors, thermocouples and infrared detectors, in forms the registry aliases name including candy or sugar thermometers for cooking, pet thermometers, thermohygrometers that also measure humidity, maximum and minimum thermometers that record extremes, as in Six s design of 1782, and the tasimeter, an instrument devised by Thomas Edison in 1878 to detect very small temperature changes; mercury thermometers are being phased out under the Minamata Convention. High fever in young infants needs prompt medical advice.
What it is for: Measuring temperature.
It can be explain principles and types; relay scales and calibration; describe named instruments; relay mercury and fever safety.
Distinguishing features
Temperature sensing
Many principles
Calibrated scales
Medical and scientific uses
What it looks like
Glass tubes with liquid columns, digital probes, ear or forehead scanners and dial gauges.
Physical character
Fahrenheit scale: 1724 year
Celsius scale: 1742 year - later inverted
Six s maximum-minimum thermometer: 1782 year
Minamata Convention: 2013 year - phase-out of mercury thermometers
How it is recognised
Temperature measuring instrument
Tasimeter, candy thermometer, pet thermometer, thermohygrometer, maximum thermometer, minimum thermometer
Thermostats control temperature; thermographs record over time; pyrometers measure high temperatures remotely; hygrometers measure humidity
Related models
is a kind of - in registry terms
measures -
includes -
is contrasted with -
In practice
Families and kinds
liquid-in-glass thermometers
digital and thermistor thermometers
infrared thermometers
thermocouple probes
maximum and minimum thermometers
cooking and veterinary thermometers
Standards and regulation
International Temperature Scale of 1990
Minamata Convention on Mercury
Medical device standards for clinical thermometers
Failure modes and hazards
Mercury exposure from broken thermometers
Inaccurate readings from poor technique
Delaying care for infant fever
Also called
+5
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.thermometer
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 thermometer is.
Definition.
Definition
Definition.
Definition
Definition.
- What is a thermometer, and how does it differ from thermostats, thermographs, pyrometers and hygrometers? definition
- Does a baby under three months have a fever, or has a mercury thermometer broken, in which case seek medical advice or follow official clean-up guidance? boundary
Named
Named instruments.
Named
Named.
- What are tasimeters, candy, pet and maximum and minimum thermometers and thermohygrometers? definition
- Which entry fits the specific instrument? action
Science Principles.
Science.
Principles
Sensing principles.
Principles
Principles.
- How do liquid expansion, resistance, thermocouples and infrared sensors measure temperature? provenance
- Which references are standard? provenance
Scales
Temperature scales.
Scales
Scales.
- How do Celsius, Fahrenheit and kelvin scales relate, and what is ITS-90? measurement
- Which sources are cited? provenance
Use Safe use.
Regulation.
Medical
Taking temperatures.
Medical
Medical.
- What do health services advise about measuring body temperature? provenance
- Which entry fits fever? action
Mercury
Mercury phase-out.
Mercury
Mercury.
- Why are mercury thermometers being phased out, and how should spills be handled? provenance
- Which entry fits Minamata Convention on Mercury? action
Context History and weather.
Context.
History
History.
History
History.
- How did Galileo s thermoscope lead to thermometers? provenance
- Which entry fits thermoscope? action
Weather
Weather stations.
Weather
Weather.
- How are thermometers used in Stevenson screens? provenance
- Which entry fits Stevenson screen? action
What the second pass must settle
- Should the tasimeter be a separate entry?
- How should metrology and health sources be linked?
- Should clinical thermometers be a separate entry?