公开(公告)号：DE2055706B2

公开(公告)日：1975-07-31

申请号：DE2055706

申请日：1970-11-12

Applicant: N.V. PHILIPS' GLOEILAMPENFABRIEKEN, EINDHOVEN (NIEDERLANDE)

Inventor： JACKSON, JOHN, HAYWARDS HEATH, SUSSEX ,  BRADSHAW, ROBERT FAGAN DONAT, MARKYATE, HERTFORDSHIRE

IPC: G01J3/427 ,  G01J3/08 ,  G01J3/447 ,  G01N21/03 ,  G01N21/21 ,  G01N21/31 ,  G01J4/00

Abstract: A method and apparatus for monitoring the presence of water vapor in helium features providing two narrow infrared frequency band within and outside a water vapor absorption band, alternately projecting the two bands of infrared radiation into the helium by using the polarization properties of the infrared radiation, and subsequently detecting the two infrared bands and comparing their amplitudes. Besides providing an accurate and reliable measurement, the invention is compact and requires no moving mechanical parts.

公开(公告)号：CH564763A5

公开(公告)日：1975-07-31

申请号：CH641972

申请日：1972-04-28

Applicant: MICROMEDIC SYSTEMS INC

IPC: G01J3/08 ,  G01J1/02 ,  G01J1/08 ,  G01N21/00

Abstract: The present invention relates to optical instruments, such as photometers including spectrophotometers, and relates more particularly to a light-shifting device of light refracting type for receiving a beam of light used in such instruments and shifting it into one or the other of two parallel paths.

公开(公告)号：SU474165A3

公开(公告)日：1975-06-14

申请号：SU1401500

申请日：1969-12-11

IPC: G01J3/12 ,  G01J3/02 ,  G01J3/08 ,  G01J3/28

公开(公告)号：DE1497549C3

公开(公告)日：1974-09-19

申请号：DE1497549

申请日：1966-08-03

Applicant: PERKIN-ELMER LTD., BEACONSFIELD, BUCKINGHAMSHIRE (GROSSBRITANNIEN)

Inventor： FORD, MICHAEL ALAN, BEACONSFIELD, BUCKINGHAMSHIRE (GROSSBRITANNIEN)

IPC: G01J3/08 ,  G01J3/42

公开(公告)号：DE2364069A1

公开(公告)日：1974-07-11

申请号：DE2364069

申请日：1973-12-21

Applicant: SHIMADZU CORP

Inventor： IWAHASHI KENJI ,  YAMAMOTO HIROSHI

IPC: G01J3/08 ,  G01J3/42 ,  G01J3/427

公开(公告)号：DE2036165B2

公开(公告)日：1974-05-30

申请号：DE2036165

申请日：1970-07-21

Applicant: COMPAGNIE D'APPLICATIONS MECANIQUES A L'ELECTRONIQUE AU CINEMA ET A L'ATOMISTIQUE (C.A.M.E.C.A.), COURBEVOIE (FRANKREICH)

Inventor： ROUBEROL, JEAN-MICHEL, SAINT GERMAIN EN LAYE (FRANKREICH)

IPC: G01J3/08 ,  G01J3/42 ,  G01N21/35 ,  G01J3/36

公开(公告)号：IT939850B

公开(公告)日：1973-02-10

申请号：IT7011571

申请日：1971-09-22

Applicant: COMMISSARIAT ENERGIE ATOMIQUE

Inventor： BERTHELOT GUY ,  PEREZ J

IPC: G01J20060101 ,  G01J3/08 ,  G01J3/42 ,  G01J

公开(公告)号：DE1497549A1

公开(公告)日：1969-02-27

申请号：DE1497549

申请日：1966-08-03

Applicant: PERKIN ELMER LTD

Inventor： ALAN FORD MICHAEL

IPC: G01J3/08 ,  G01J3/42

公开(公告)号：DE1447244A1

公开(公告)日：1969-01-02

申请号：DE1447244

申请日：1960-05-24

Applicant: NAT D ETUDES ETDE RECH S AEROS

Inventor： JEAN GIRARD ANDRE

IPC: G01J3/08 ,  G01J3/28 ,  G01J3/06

公开(公告)号：DE1256436B

公开(公告)日：1967-12-14

申请号：DEA0046049

申请日：1964-05-13

Applicant: KARL ARON LENNAERT AAKERMAN

Inventor： AKERMAN KARL ARON LENNAERT

IPC: G01J3/42 ,  G01J3/08