公开(公告)号：JPH11142247A

公开(公告)日：1999-05-28

申请号：JP23557298

申请日：1998-08-21

Applicant: ABB RESEARCH LTD

Inventor： DOBLER THOMAS ,  EVERS WOLFGANG DR ,  HAFFNER KEN

IPC: G01J5/08 ,  F02C7/00 ,  G01J5/00 ,  G01J5/10

Abstract: PROBLEM TO BE SOLVED: To provide an optical pyrometer which is suitable for measuring a temperature especially inside a gas turbine. SOLUTION: A pyrometer 20 is provided with a flexible light-guide measuring probe 21 which comprises a microlens 22 resistant to a high temperature and an optical fiber 24 which is composed of quartz or sapphire. The microlens 22 and the fiber 24 are provided with gold sheaths 25, 26 and/or protective capillaries 27, 28. A thermal radiation is evaluated by a detector 32 in a remote place. The detector 32 is provided with a measuring circuit 33 which is connected to it. The pyrometer 20 is distribguished by its compactness, its high- temperature performance, its flexibility, its multidirectional installation property and its high measuring accuracy.

公开(公告)号：DE19736276A1

公开(公告)日：1999-02-25

申请号：DE19736276

申请日：1997-08-21

Applicant: ABB RESEARCH LTD

Inventor： DOBLER THOMAS ,  EVERS WOLFGANG DR ,  HAFFNER KEN

IPC: G01J5/08 ,  F02C7/00 ,  G01J5/00 ,  G01J5/10 ,  F02C9/00

Abstract: The pyrometer includes a light-guiding probe (21) for detecting thermal radiation and transferring it to a detector (33). The probe includes an optical fibre (24) with a micro-optical sensor head (22). The fibre and the sensor head are resistant to high temperatures. The fibre and the sensor head have a flexible covering. A gas turbine for generation of electricity is also claimed. A method for monitoring a gas turbine using the high-temperature pyrometer is also claimed.