JPS5739328A - Temperature measuring phase detector for infrared ray thermometer - Google Patents

Temperature measuring phase detector for infrared ray thermometer

Info

Publication number
JPS5739328A
JPS5739328A JP11458580A JP11458580A JPS5739328A JP S5739328 A JPS5739328 A JP S5739328A JP 11458580 A JP11458580 A JP 11458580A JP 11458580 A JP11458580 A JP 11458580A JP S5739328 A JPS5739328 A JP S5739328A
Authority
JP
Japan
Prior art keywords
temp
measured
sensor
disc
infrared ray
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
JP11458580A
Other languages
Japanese (ja)
Other versions
JPS6114449B2 (en
Inventor
Shigeru Kusuki
Tomotaka Nobue
Keijiro Mori
Kazunari Nishii
Takahito Kanazawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11458580A priority Critical patent/JPS5739328A/en
Publication of JPS5739328A publication Critical patent/JPS5739328A/en
Publication of JPS6114449B2 publication Critical patent/JPS6114449B2/ja
Granted 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
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0803—Arrangements for time-dependent attenuation of radiation signals
    • G01J5/0805—Means for chopping radiation

Landscapes

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

Abstract

PURPOSE:To simplify construction by providing a shutter between an object to be measured and an infrared ray sensor, repeating different incident time and shutting time at roughly constant periods, processing output signals in synchronization with these and determining crest values. CONSTITUTION:The infrared rays 3 from a body 2 to be measured are detected with a sensor 7 through a window 4 then through a reflection plate 5. An route of this, a disc 8 having notched parts B is rotated by a motor 8 to intermit the infrared rays 3. The angle that the parts B and the disc part A form with respect to the center O is set at thetaA>thetaB. The energy proportional to the biquadratic of the temp. To of the object 2 and the temp. Tc of the part A functioning as a shutter plate inputs to the sensor 7. The output of the sensor 7 is processed with an amplifier having filter characteristics, and the AC signal shown having a correlation with T0<4>, Tc<4> is obtained. By the thetaA>thetaB, the incident time t1 and shutting time t2 are made t1<t2, and the crest values are made H1>H2. The H1 side is used as a temp. measuring phase and is synchronized with the rotation of the disc 8. Only the H1 side of the AC signal is rectified. Thereby, the temp. of the object to be measured is measured.
JP11458580A 1980-08-19 1980-08-19 Temperature measuring phase detector for infrared ray thermometer Granted JPS5739328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11458580A JPS5739328A (en) 1980-08-19 1980-08-19 Temperature measuring phase detector for infrared ray thermometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11458580A JPS5739328A (en) 1980-08-19 1980-08-19 Temperature measuring phase detector for infrared ray thermometer

Publications (2)

Publication Number Publication Date
JPS5739328A true JPS5739328A (en) 1982-03-04
JPS6114449B2 JPS6114449B2 (en) 1986-04-18

Family

ID=14641525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11458580A Granted JPS5739328A (en) 1980-08-19 1980-08-19 Temperature measuring phase detector for infrared ray thermometer

Country Status (1)

Country Link
JP (1) JPS5739328A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61282509A (en) * 1985-06-04 1986-12-12 Marushima Suimon Seisakusho:Kk Water-intake device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61282509A (en) * 1985-06-04 1986-12-12 Marushima Suimon Seisakusho:Kk Water-intake device
JPH0441207B2 (en) * 1985-06-04 1992-07-07 Marsima Aqua System Corp

Also Published As

Publication number Publication date
JPS6114449B2 (en) 1986-04-18

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