| 摘要 |
<p>An optical fiber (20) in optical communication with the hollow interior portion (18) of a thermowell (12) and coupled with suitable infrared detecting electronics. Infrared radiation emitted within the hollow portion (18) of the thermowell (12), due to the heat of the fluid passing through the pipe (10) in which the thermowell (12) is located, can be received and conveyed by the optical fiber (20) to the detecting electronics. The detecting electronics may be located at a substantial distance from the hostile environment in which the thermowell (12) is located. Enhancement of the reception and conveyance of infrared radiation may be accomplished, by employing a quartz or sapphire rod (32) at the radiation receiving tip of the optical fiber (20). <IMAGE></p> |
