What is the thermometric property of liquid crystal thermometer?

Answer 1

The thermal expansion of this liquid must be proportional to temperature; also corrosive, toxic and very colored liquids must be avoided if it is possible. These liquids doesn't react with glass.

Answer 2

Those thermometers use liquid crystals to measure temperature. More specifically, they use chiral nematic liquid crystals--long asymmetric molecules that arrange themselves in orderly spirals in the liquid. When light strikes these spiral structures, some of it reflects. But the reflection is strongest when the light's wavelength is an integer or half integer multiple of the spiral's pitch--the distance between adjacent turns of the spiral. Since light's wavelength is related to its color, the light reflected by these liquid crystals is colored. Because the pitch of a chiral nematic liquid crystal changes with temperature, so does its color. Slightly different liquid crystals are inserted behind each number on the thermometer so that each number becomes colored at a different temperature.

copied from:

http://rabi.phys.Virginia.edu/HTW/thermometers_and_thermostats.html

Answer 3

Liquid crystal thermometers offer a good approximation of temperature for a small range. Since the indicator may be bright for several values, though, you cannot say with certainty what the temperature actually is.

Answer 4

The thermometric property of liquid crystal thermometers is their ability to change color in response to temperature variations. This color change is due to the liquid crystal molecules realigning when heated or cooled, producing different colors that correlate to specific temperature ranges.

Answer 5

color change.

-

are you by any chance in form 3?

Answer 6

liquid crystal thermometers use liquid crystals that change colour in response to temperature changes. just look it up. i will find something somewhere