| 摘要 |
A thermometer comprises an emitting unit, a light receiving unit, a lens unit, and a calculation unit. The emitting unit is configured to emit a measurement light into a flue, wherethrough a gas that contains light dispersing particles flows. The light receiving unit is configured to receive, of the measurement light, dispersed measurement light dispersed by the light dispersing particles. The lens unit is configured to set its focal point at a prescribed position inside the flue and along the light receiving axis. The calculation unit is configured to calculate the temperature inside the flue based on an intensity ratio of absorption spectra at a plurality of wavelengths. |
| 主权项 |
1. A thermometer, comprising:
an emitting unit configured to emit a measurement light into a flue, wherethrough a gas that contains light dispersing particles flows; a light receiving unit configured to receive, of the measurement light, dispersed measurement light dispersed by the light dispersing particles; a lens unit provided on a side closer to the flue than the light receiving unit, existing along a light receiving axis, and configured to focus at a prescribed position inside the flue and along the light receiving axis, the light receiving axis extending in a normal line direction of a light receiving surface of the light receiving unit; and a calculation unit configured to calculate the temperature inside the flue based on an intensity ratio of absorption spectra at a plurality of wavelengths, among absorption spectra of a prescribed component in the gas and included in the dispersed measurement light received by the light receiving unit. |
