JPS5666715A - Two color thermometer - Google Patents

Two color thermometer

Info

Publication number
JPS5666715A
JPS5666715A JP14305379A JP14305379A JPS5666715A JP S5666715 A JPS5666715 A JP S5666715A JP 14305379 A JP14305379 A JP 14305379A JP 14305379 A JP14305379 A JP 14305379A JP S5666715 A JPS5666715 A JP S5666715A
Authority
JP
Japan
Prior art keywords
output
divider
filters
types
ratio
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.)
Pending
Application number
JP14305379A
Other languages
Japanese (ja)
Inventor
Seiichi Okuhara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP14305379A priority Critical patent/JPS5666715A/en
Publication of JPS5666715A publication Critical patent/JPS5666715A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To make small and simple the device, by constituting that the output of a photoelectric conversion element for the light passing through two types of filters is input to a divider, the output is separated according to the types of filters and the ratio is indicated, and the specified output relating to the output of the divider is input to the denominator of the divider. CONSTITUTION:The radiated light 3 from the body to be measured is incident to a photoelectric conversion element 4 through a two color rotating filter 2. The output enters a numerator input terminal 51 of the divider. The output is separated according to two types of filters 21, 22 at a separation circuit 6, and the ratio of both the outputs is displayed at a ratio indicator 8 via synchronizing rectifying circuits 71, 72. On the other hand, the deviation between the output either one of greater output out of the rectifying circuits 71, 72, and the reference voltage Vs is obtained at an operational amplifier 9, and the output is fed to a denominator input terminal 52 of the divider 5 to adjust the output level of the divider. Accordingly, since phototransistors can be used in place of photomultipliers, the unit can be made small and simple.
JP14305379A 1979-11-05 1979-11-05 Two color thermometer Pending JPS5666715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14305379A JPS5666715A (en) 1979-11-05 1979-11-05 Two color thermometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14305379A JPS5666715A (en) 1979-11-05 1979-11-05 Two color thermometer

Publications (1)

Publication Number Publication Date
JPS5666715A true JPS5666715A (en) 1981-06-05

Family

ID=15329811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14305379A Pending JPS5666715A (en) 1979-11-05 1979-11-05 Two color thermometer

Country Status (1)

Country Link
JP (1) JPS5666715A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083944A2 (en) * 1982-01-12 1983-07-20 Hitachi, Ltd. Plasma monitoring method and plasma monitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083944A2 (en) * 1982-01-12 1983-07-20 Hitachi, Ltd. Plasma monitoring method and plasma monitor

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