| Kieli | Käännökset |
|---|---|
| italia | bolometro |
| ranska | bolomètre |
| suomi | bolometri |
| Monikko | bolometers |
(physics) A sensitive device for detecting and measuring the energy of electromagnetic radiation.
Spiderweb bolometer for measurements of the cosmic microwave background radiation. Image credit: NASA/JPL-Caltech.
(physics) A sensitive device for detecting and measuring the energy of electromagnetic radiation.
Conceptual schematic of a bolometer. Power, P, from an incident signal is absorbed and heats up a thermal mass with heat capacity, C, and temperature, T. The thermal mass is connected to a reservoir of constant temperature through a link with thermal conductance, G. The temperature increase is ΔT = P/G and is measured with a resistive thermometer, allowing the determination of P. The intrinsic thermal time constant is τ = C/G.