JPS57197455A - Method and apparatus for continuous analysis of double modulation microwave - Google Patents

Method and apparatus for continuous analysis of double modulation microwave

Info

Publication number
JPS57197455A
JPS57197455A JP8112781A JP8112781A JPS57197455A JP S57197455 A JPS57197455 A JP S57197455A JP 8112781 A JP8112781 A JP 8112781A JP 8112781 A JP8112781 A JP 8112781A JP S57197455 A JPS57197455 A JP S57197455A
Authority
JP
Japan
Prior art keywords
microwave
stark
continuously
source
double modulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8112781A
Other languages
Japanese (ja)
Other versions
JPH0227617B2 (en
Inventor
Hiromichi Uehara
Yasuji Ijuin
Akio Hikita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sagami Chemical Research Institute
Original Assignee
Sagami Chemical Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sagami Chemical Research Institute filed Critical Sagami Chemical Research Institute
Priority to JP8112781A priority Critical patent/JPH0227617B2/en
Publication of JPS57197455A publication Critical patent/JPS57197455A/en
Publication of JPH0227617B2 publication Critical patent/JPH0227617B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To make the measurement of molecules of various kinds possible and also, to perform the stable measurement for a long time, by detecting the absorption of a microwave while subjecting to double modulation to a sample and obtaining the difference between each value of maximum and minimum of an absorption signal continuously. CONSTITUTION:A part of generated wave of a microwave source 1 is supplied to a Stark cavity resonator 4 through a circuit 2 and the microwave carried out multiple reflection in its inner part is synthesized with the microwave sent from the source 1 through the circuit 2 and then, is supplied to a detector 5. On this occasion, an f1 Stark modulation power source 7 and an f2 Stark modulation power source 8, are combined with an electrode plate 30 of the resonator 4 through a coupler 9. The phase detection 11 of each absorption signal subjected to this double modulation is carried out through the detector 5 and the integrated value of both signals is obtained. Further, the difference of these values is found and is recorded continuously and then, the concentration of the gas to be measured is obtained continuously.
JP8112781A 1981-05-29 1981-05-29 NIJUHENCHOMAIKUROHARENZOKUBUNSEKIHOHOOYOBISOCHI Expired - Lifetime JPH0227617B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8112781A JPH0227617B2 (en) 1981-05-29 1981-05-29 NIJUHENCHOMAIKUROHARENZOKUBUNSEKIHOHOOYOBISOCHI

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8112781A JPH0227617B2 (en) 1981-05-29 1981-05-29 NIJUHENCHOMAIKUROHARENZOKUBUNSEKIHOHOOYOBISOCHI

Publications (2)

Publication Number Publication Date
JPS57197455A true JPS57197455A (en) 1982-12-03
JPH0227617B2 JPH0227617B2 (en) 1990-06-19

Family

ID=13737722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8112781A Expired - Lifetime JPH0227617B2 (en) 1981-05-29 1981-05-29 NIJUHENCHOMAIKUROHARENZOKUBUNSEKIHOHOOYOBISOCHI

Country Status (1)

Country Link
JP (1) JPH0227617B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01502363A (en) * 1987-07-17 1989-08-17 ケルンフオルシユングスツエントルム　カールスルーエ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Gas analysis and concentration measurement method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01502363A (en) * 1987-07-17 1989-08-17 ケルンフオルシユングスツエントルム　カールスルーエ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Gas analysis and concentration measurement method

Also Published As

Publication number Publication date
JPH0227617B2 (en) 1990-06-19

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