A very common instrument for the direct measurement of the density of a liquid is the hydrometer, which measures the volume displaced by an object of known mass. A common laboratory device for measuring fluid density is apycnometer; a related device for measuring the absolute density of a solid is a gas pycnometer. Another instrument used to determine the density of a liquidor a gas is the digital density meter - based on the oscillating U-tube principle.
Density is mass divided by volume usually expressed as kilograms per cubic metre (kg/m³) or grams per cubic centimetre (g/cm³).
What measurement is used to determine density?
If you refer to the units, commonly used units are kilograms per cubic meter, and kilograms per liter.
Density = Mass / Volume
Hydrometer measure the density of liquids.
A hydrometer can be used to find the specific gravity (relative density) of a liquid by determining how much water it will displace. Various calibrations are used for different kinds of liquids.
So they can determine the density of a substance. Density = mass/volume. Density can be used to identify a substance.
It is called a hydrometer.Also, density equals mass divided by volume.See the Related Questions to the left for more information about hydrometer and density.yup
That depends what you want to measure: length, width, volume, weight, mass, density, etc.
A bone density test employs x-rays to measure the amount of calcium and other bone minerals are retained with the bone segment. A bone density test is used to diagnose osteoporosis.
bone density.
Bone density
Dual-energy Xray Absorptiometry is used to measure bone density to detect Osteoporosis.
absorptiometry
Bone Mineral Density tests measure the density of minerals in your bones to determine bone strength. This could often be found to be beneficial. However more information can be found at http://www.webmd.com/osteoporosis/bone-mineral-density-test
more likely to catch osteoporosis at an early stage are computed tomography scans (CT scans) and machines called densitometers, which are designed specifically to measure bone density
Hydrometer measure the density of liquids.
It is for a DEXA scan, which is used to measure a woman's bone density..if she has the beginnings of, or a more advanced case of osteoporosis.
Post-menopause unless there's a reason to do it sooner.
Scroll down to related links and look at "Bone density - Wikipedia".It's a test for quantitative measurement of the mineral content of bone, used as an indicator of the structural strength of the bone and as a screen for osteoporosis.
Density is a measure of how tightly the matter within it is packed together.