hydrometer
Measures liquid density
A hydrometer is an instrument that measures the density or specific gravity of liquids.
It typically consists of a weighted glass tube that floats at different levels depending on the liquid's density—the denser the liquid, the higher it floats.
Hydrometers are used to test alcohol content in brewing, check battery acid, or measure salinity in aquariums.
Density ratio versus reference
- densityMass-to-volume ratio
- buoyancyFluid's upward resistance
- concentrationSustained single-minded attention
- salinityDissolved mineral concentration
alcohol content · sugar content · proof · percentage · reading · calibration · graduation · meniscus
Buoyant object or vehicle
- stemPlant's central axis
- bulbRounded storage organ
- ballastShip stability material
- graduated scaleMarked incremental measurement system
glass tube · bob · spindle · lead shot
Beverage preparation process
- winemakingCrafting fermented grape beverages
- distillingPurifying through vaporization
- aquariumTank for keeping fish
- battery testingAssessing charge capacity
urine analysis · petroleum · soil analysis · maple syrup · saltwater · dairy
Removal from usual location
- laboratoryFacility for scientific investigation
- quality controlMaintaining production standards
- standardizationImplementing uniform technical specifications
specific gravity
Density ratio versus reference
- densityMass-to-volume ratio
- buoyancyFluid's upward resistance
- concentrationSustained single-minded attention
salinity · alcohol content · sugar content · proof · percentage · reading · calibration · graduation · meniscus · scale
salinometer
Instrument measuring dissolved salts
float
Buoyant object or vehicle
graduated scale · glass tube · bob · spindle · lead shot
brewing
Beverage preparation process
- winemakingCrafting fermented grape beverages
- distillingPurifying through vaporization
- aquariumTank for keeping fish
battery testing · urine analysis · petroleum · soil analysis · maple syrup · saltwater · dairy
displacement
Removal from usual location
- laboratoryFacility for scientific investigation
- quality controlMaintaining production standards
- standardizationImplementing uniform technical specifications
- measuring devicesbarometer, scale, yardstick, ruler, tape measure
- brewingwort, mash, brewery, hops, malt
- winemakingwinery, winemaking, crushing, grapevines, grape vines
- densitydense, air density, specific gravity, water density, high density
- distillingdistillation, distillery, distiller, pot still, distilleries
- engineering toolstheodolite, level, transit, tape measure, caliper
hydrometermanometer
Instrument measuring gas pressure
barometer · anemometer · thermometer · densitometer · voltmeter