Some types of these instruments use a length of natural fiber, like a strand of hair, which changes with variations in the property being measured. Th
Some types of these instruments use a length of natural fiber, like a strand of hair, which changes with variations in the property being measured. The wet and dry bulb type uses two vertical thermometers, with one of the bulbs covered in absorbent cloth dipped in water. The dew-point type consists of a polished metal mirror that gradually cools until a fine mist of water forms on it, and once the dew point is determined, the water vapor content of the air can be calculated. FTP, identify this type of instrument which measures the relative humidity of a gas.
Some types of these instruments use a length of natural fiber, like a strand of hair, which changes with variations in the property being measured.
hygrometer