公开(公告)号：FI97082B

公开(公告)日：1996-06-28

申请号：FI943305

申请日：1994-07-11

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI ,  MERILAEINEN TIMO ,  WECKSTROEM KURT ,  POIKOLAINEN SEPPO

IPC: G01J3/10 ,  G01J3/08 ,  G01J1/08

Abstract: The application relates to an infrared radiation source for a gas analyzer and a method for generating infrared radiation. The infrared radiation source comprises a body (6), thermal insulation material (5) adapted inside the body (6), a radiant element (1) fitted inside the insulation material (5), elements (2, 3) for feeding electric energy to said radiant element (1), and a channel (7) formed in said body (6) and said thermal insulation material (5) in order to pass the radiation generated by said radiant element (1) to the gas under measurement. According to the description, at least the thermal insulation material (5) adapted in close proximity to the radiant element (1) has a low thermal conductivity and the emissivity of the radiant surface (11) adapted in close proximity to the radiant element (1) is greater than 0.5 at the operating temperature of the source.

公开(公告)号：FI953062A

公开(公告)日：1996-12-21

申请号：FI953062

申请日：1995-06-20

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI

IPC: G01K7/08 ,  H05B1/02 ,  H05B3/40 ,  G01J

Abstract: Infrared radiator has a heating element (1) heated by electric current and a first thermocouple (2) thermally coupled to the heating element to measure its temperature. According to the invention, the first thermocouple (2) is electrically so connected to the heating element (1) that the electric current used to heat the heating element flows through the thermocouple. The invention allows the temperature of the heating element to be measured without the use of a separate temperature detector, which would cause problems.

公开(公告)号：FI943305A

公开(公告)日：1996-01-12

申请号：FI943305

申请日：1994-07-11

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI ,  MERILAEINEN TIMO ,  WECKSTROEM KURT ,  POIKOLAINEN SEPPO

IPC: G01J3/10 ,  G01N1/08

Abstract: The application relates to an infrared radiation source for a gas analyzer and a method for generating infrared radiation. The infrared radiation source comprises a body (6), thermal insulation material (5) adapted inside the body (6), a radiant element (1) fitted inside the insulation material (5), elements (2, 3) for feeding electric energy to said radiant element (1), and a channel (7) formed in said body (6) and said thermal insulation material (5) in order to pass the radiation generated by said radiant element (1) to the gas under measurement. According to the description, at least the thermal insulation material (5) adapted in close proximity to the radiant element (1) has a low thermal conductivity and the emissivity of the radiant surface (11) adapted in close proximity to the radiant element (1) is greater than 0.5 at the operating temperature of the source.

公开(公告)号：FI963388A0

公开(公告)日：1996-08-30

申请号：FI963388

申请日：1996-08-30

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI ,  WECKSTROEM KURT PETER

IPC: G01N21/25 ,  G01N

公开(公告)号：FI107963B

公开(公告)日：2001-10-31

申请号：FI953062

申请日：1995-06-20

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI

IPC: G01K7/08 ,  H05B1/02 ,  H05B3/40 ,  G01J3/10

Abstract: Infrared radiator has a heating element (1) heated by electric current and a first thermocouple (2) thermally coupled to the heating element to measure its temperature. According to the invention, the first thermocouple (2) is electrically so connected to the heating element (1) that the electric current used to heat the heating element flows through the thermocouple. The invention allows the temperature of the heating element to be measured without the use of a separate temperature detector, which would cause problems.

公开(公告)号：FI963388A

公开(公告)日：1998-03-01

申请号：FI963388

申请日：1996-08-30

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI ,  WECKSTROEM KURT PETER

IPC: G01N21/25 ,  G01N21/59

公开(公告)号：FI97082C

公开(公告)日：1996-10-10

申请号：FI943305

申请日：1994-07-11

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI ,  MERILAEINEN TIMO ,  WECKSTROEM KURT ,  POIKOLAINEN SEPPO

IPC: G01J3/10 ,  G01J3/08 ,  G01J1/08

公开(公告)号：DE19624472A1

公开(公告)日：1997-01-09

申请号：DE19624472

申请日：1996-06-19

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI

IPC: G01K7/08 ,  H05B1/02 ,  H05B3/40 ,  G01K7/16 ,  G01N21/61 ,  H05B3/42

Abstract: Infrared radiator has a heating element (1) heated by electric current and a first thermocouple (2) thermally coupled to the heating element to measure its temperature. According to the invention, the first thermocouple (2) is electrically so connected to the heating element (1) that the electric current used to heat the heating element flows through the thermocouple. The invention allows the temperature of the heating element to be measured without the use of a separate temperature detector, which would cause problems.

公开(公告)号：FI953062A0

公开(公告)日：1995-06-20

申请号：FI953062

申请日：1995-06-20

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI

IPC: G01K7/08 ,  H05B1/02 ,  H05B3/40 ,  G01J

Abstract: Infrared radiator has a heating element (1) heated by electric current and a first thermocouple (2) thermally coupled to the heating element to measure its temperature. According to the invention, the first thermocouple (2) is electrically so connected to the heating element (1) that the electric current used to heat the heating element flows through the thermocouple. The invention allows the temperature of the heating element to be measured without the use of a separate temperature detector, which would cause problems.

公开(公告)号：FI943305A0

公开(公告)日：1994-07-11

申请号：FI943305

申请日：1994-07-11

Applicant: INSTRUMENTARIUM OY

Inventor： KARLSSON KAI ,  MERILAEINEN TIMO ,  WECKSTROEM KURT ,  POIKOLAINEN SEPPO

IPC: G01J3/10 ,  G01J ,  G01N

Abstract: The application relates to an infrared radiation source for a gas analyzer and a method for generating infrared radiation. The infrared radiation source comprises a body (6), thermal insulation material (5) adapted inside the body (6), a radiant element (1) fitted inside the insulation material (5), elements (2, 3) for feeding electric energy to said radiant element (1), and a channel (7) formed in said body (6) and said thermal insulation material (5) in order to pass the radiation generated by said radiant element (1) to the gas under measurement. According to the description, at least the thermal insulation material (5) adapted in close proximity to the radiant element (1) has a low thermal conductivity and the emissivity of the radiant surface (11) adapted in close proximity to the radiant element (1) is greater than 0.5 at the operating temperature of the source.