JPS55101827A - Microwave radiometer - Google Patents

Microwave radiometer

Info

Publication number
JPS55101827A
JPS55101827A JP982979A JP982979A JPS55101827A JP S55101827 A JPS55101827 A JP S55101827A JP 982979 A JP982979 A JP 982979A JP 982979 A JP982979 A JP 982979A JP S55101827 A JPS55101827 A JP S55101827A
Authority
JP
Japan
Prior art keywords
temperature
noise source
comparison
antenna
difference
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
JP982979A
Other languages
Japanese (ja)
Other versions
JPS6238658B2 (en
Inventor
Sadahiro Ishizawa
Hirokazu Tanaka
Noriaki Watanabe
Shunichiro Kawabata
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.)
UCHIYUU KAIHATSU JIGIYOUDAN
National Space Development Agency of Japan
Mitsubishi Electric Corp
Original Assignee
UCHIYUU KAIHATSU JIGIYOUDAN
National Space Development Agency of Japan
Mitsubishi Electric Corp
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 UCHIYUU KAIHATSU JIGIYOUDAN, National Space Development Agency of Japan, Mitsubishi Electric Corp filed Critical UCHIYUU KAIHATSU JIGIYOUDAN
Priority to JP982979A priority Critical patent/JPS55101827A/en
Publication of JPS55101827A publication Critical patent/JPS55101827A/en
Publication of JPS6238658B2 publication Critical patent/JPS6238658B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/006—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of the effect of a material on microwaves or longer electromagnetic waves, e.g. measuring temperature via microwaves emitted by the object

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radiation Pyrometers (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To obtain a comparison noise source with a simple construction by employing a horn antenna as the comparison noise source of a Dicke comparison microwave radiometer. CONSTITUTION:A comparison noise source 9 consisting of a horn antenna is mounted on the surface not affected by the sun or moon at a satellite body always at the cold space side in the universe. In this case, when a switch 6 is operated to become T0<T1<T2, a relationship V1<V<V2 is attained, where the voltage produced in a receiver 5 due to the difference between the temperature T0 of a noise source 9 and antenna temperature TA is represented by V, the voltage produced due to the difference between the temperature T0 and the temperature T1 of a skyhorn 2 is by V1, and the voltage produced due to the difference between the temperature T0 and the temperature T2 of the standard noise source 3. Further, the antenna temperature TA becomes TA=(V2T1-V1T2)/(V2-V1)+(T2- T1)V/ (V2-V1). Since the noise source 9 is disposed in the cold space side, it becomes low noise source. Thus, the temperature T0 is set at the lower limit in the antenna temperature observation range. Accordingly, a comparison noise source having low calibration error may be obtained.
JP982979A 1979-01-31 1979-01-31 Microwave radiometer Granted JPS55101827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP982979A JPS55101827A (en) 1979-01-31 1979-01-31 Microwave radiometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP982979A JPS55101827A (en) 1979-01-31 1979-01-31 Microwave radiometer

Publications (2)

Publication Number Publication Date
JPS55101827A true JPS55101827A (en) 1980-08-04
JPS6238658B2 JPS6238658B2 (en) 1987-08-19

Family

ID=11731010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP982979A Granted JPS55101827A (en) 1979-01-31 1979-01-31 Microwave radiometer

Country Status (1)

Country Link
JP (1) JPS55101827A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105372610A (en) * 2015-10-27 2016-03-02 中国科学院国家空间科学中心 Four-point scaling device and method for microwave radiometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105372610A (en) * 2015-10-27 2016-03-02 中国科学院国家空间科学中心 Four-point scaling device and method for microwave radiometer

Also Published As

Publication number Publication date
JPS6238658B2 (en) 1987-08-19

Similar Documents

Publication Publication Date Title
AU502814B2 (en) Lock mechanism with disengageable knob
JPS5696507A (en) Superregenerative receiver
JPS6481400A (en) Radar shielding member
JPS55101827A (en) Microwave radiometer
JPS5219047A (en) Dielectric-lens multibeam antenna
Babin et al. Intensification of magnetic fields, millimeter-range radio brightness, and H-alpha activity in polar regions on the sun
JPS55101828A (en) Microwave radiometer
JPS55101826A (en) Microwave radiometer
JPS5631113A (en) Temperature adjuster
JPS55101824A (en) Microwave radiometer
JPS55101829A (en) Microwave radiometer
JPS5616891A (en) Quartz oscillating circuit for watch
JPS55133106A (en) Power reception antenna
JPS5287954A (en) Surface magnetostatic wave element
JPS55133120A (en) Thickness-slip-bending quartz oscillator
COOPER et al. The antennas((radio telescope antennas))
Sogolova et al. Temperature dependence, in the range between 4. 2 and 300 K, of the mechanical properties of polymers of various chemical structure
JPS5613810A (en) Horn antenna
JPS52113281A (en) Detector of rolled material
JPS5333034A (en) Gain variable reflective mirror antanna
JPS55101825A (en) Microwave radiometer
JPS52112350A (en) Electronic watch
LEIGHTON Millimeter-wave antenna design[Final Report]
Heel et al. An X-band SAR for space applications
JPS5275956A (en) Microwave oscillation unit