Hair hygrometer

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf gptkb:Hygrometer
gptkbp:alternativeTo gptkb:Electronic_hygrometer
gptkb:Psychrometer
gptkbp:component gptkb:Pointer
Scale
Frame
Hair bundle
gptkbp:displayType Analog
https://www.w3.org/2000/01/rdf-schema#label Hair hygrometer
gptkbp:inventedBy gptkb:Horace-Bénédict_de_Saussure
1783
gptkbp:limitation Affected by temperature
Requires calibration
gptkbp:material Human hair
gptkbp:notableFeature No electrical power required
Simple mechanical design
gptkbp:principle Hair length changes with humidity
gptkbp:sensitivity Sensitive to oil-free hair
gptkbp:usedFor Measuring humidity
gptkbp:usedIn Meteorology
Laboratories
gptkbp:bfsParent gptkb:Hygrometer
gptkbp:bfsLayer 5