Question

Globar source required IR radiation temperature...?​

Answer 1

Answer:

Globar is a solid light source made of silicon carbide; it is heated by resistor heating method by a current source. The silicon carbide rod is heated to temperatures of 1000 to 1650°C (1832-3002°F) and then combined with a downstream interference filter to produce radiation having wavelengths of 4 to 15 µm.

Answer 2

Globar source required IR radiation temperature:

• Infrared spectroscopy makes use of a Globar as a thermal light source.

• It's a silicon carbide rod with a diameter of 5 to 10 mm and a length of 20 to 50 mm that's heated to 1,000 to 1,650 degrees Celsius (1,830 to 3,000 degrees Fahrenheit) using electricity.

• It produces radiation with a wavelength of 4 to 15 micrometres when used with a downstream variable interference filter.

• Because their spectral behaviour closely resembles that of a Planck radiator, globals are employed as thermal light sources for infrared spectroscopy (i.e. a black body).