JPS57204466A - Automatic balance type radiometer - Google Patents

Automatic balance type radiometer

Info

Publication number
JPS57204466A
JPS57204466A JP8890781A JP8890781A JPS57204466A JP S57204466 A JPS57204466 A JP S57204466A JP 8890781 A JP8890781 A JP 8890781A JP 8890781 A JP8890781 A JP 8890781A JP S57204466 A JPS57204466 A JP S57204466A
Authority
JP
Japan
Prior art keywords
measured
amplifier
generated
detector
output
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
JP8890781A
Other languages
Japanese (ja)
Other versions
JPS6226710B2 (en
Inventor
Takeshi Oshima
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.)
RADIO RES LAB
YUSEISHO DENPA KENKYUSHO
YUUSEISHIYOU DENPA KENKYUSHO
Original Assignee
RADIO RES LAB
YUSEISHO DENPA KENKYUSHO
YUUSEISHIYOU DENPA KENKYUSHO
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 RADIO RES LAB, YUSEISHO DENPA KENKYUSHO, YUUSEISHIYOU DENPA KENKYUSHO filed Critical RADIO RES LAB
Priority to JP8890781A priority Critical patent/JPS57204466A/en
Publication of JPS57204466A publication Critical patent/JPS57204466A/en
Publication of JPS6226710B2 publication Critical patent/JPS6226710B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To keep balance by a simple circuit without requiring an additional noise source for balancing, by continuously equalizing the product of electric power to be measured and time of a side to be measured, and the product of reference electric power and time of a reference side. CONSTITUTION:An output of a signal to be measured and a reference noise source 2 from an antenna 1 is switched by a circulator switch 3, and after that, is inputted to a synchronizing detector 10 through a frequency converter 6, a band pass filter 7, an amplifier 8, and a square-law detector 9, and a difference between the antenna side ad the reference side is fetched. An output of the detector 10 is inputted to a switching signal generator 20 through an integrator 11 and a servo-amplifier 14. On the other hand, in the generator 20, a square wave A of the side to be measured, having constant width is generated by a monostable multivibrator 25, and from a pulse width modulator 21 triggered by a rise edge of this square wave A, a reference side pulse R having pulse width being proportional to output voltage of the servo-amplifier is generated, and a switch changing over signal S is generated by an AND gate 23.
JP8890781A 1981-06-11 1981-06-11 Automatic balance type radiometer Granted JPS57204466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8890781A JPS57204466A (en) 1981-06-11 1981-06-11 Automatic balance type radiometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8890781A JPS57204466A (en) 1981-06-11 1981-06-11 Automatic balance type radiometer

Publications (2)

Publication Number Publication Date
JPS57204466A true JPS57204466A (en) 1982-12-15
JPS6226710B2 JPS6226710B2 (en) 1987-06-10

Family

ID=13956010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8890781A Granted JPS57204466A (en) 1981-06-11 1981-06-11 Automatic balance type radiometer

Country Status (1)

Country Link
JP (1) JPS57204466A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016528485A (en) * 2013-06-25 2016-09-15 レイセオン カンパニー Lossless frequency-dependent Dicke switch type radiometer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0285610U (en) * 1988-12-22 1990-07-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016528485A (en) * 2013-06-25 2016-09-15 レイセオン カンパニー Lossless frequency-dependent Dicke switch type radiometer

Also Published As

Publication number Publication date
JPS6226710B2 (en) 1987-06-10

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