JPS57190235A - Photo temperature sensor - Google Patents

Photo temperature sensor

Info

Publication number
JPS57190235A
JPS57190235A JP56075338A JP7533881A JPS57190235A JP S57190235 A JPS57190235 A JP S57190235A JP 56075338 A JP56075338 A JP 56075338A JP 7533881 A JP7533881 A JP 7533881A JP S57190235 A JPS57190235 A JP S57190235A
Authority
JP
Japan
Prior art keywords
polarized light
light
oval
double refraction
rectilinear
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
JP56075338A
Other languages
Japanese (ja)
Inventor
Taro Toyoda
Masaya Yabe
Shoichi Fushimi
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.)
FUJI DENKI SOUGOU KENKYUSHO KK
Fuji Electric Co Ltd
Original Assignee
FUJI DENKI SOUGOU KENKYUSHO KK
Fuji Electric Corporate Research and Development 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 FUJI DENKI SOUGOU KENKYUSHO KK, Fuji Electric Corporate Research and Development Ltd filed Critical FUJI DENKI SOUGOU KENKYUSHO KK
Priority to JP56075338A priority Critical patent/JPS57190235A/en
Publication of JPS57190235A publication Critical patent/JPS57190235A/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
    • G01J5/58—Radiation pyrometry, e.g. infrared or optical thermometry using absorption; using extinction effect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To enable improving of reliability, by a method wherein, using a double refraction opti cal material, temperature can be measured with a high accuracy through detection of temperature change of a double refraction of a transmissible anti-ferromagnetic material. CONSTITUTION:Light, radiated from a laser light source 1, passes a polarizer 2 to form a rectilinear polarized light, which, in turn, is formed into an oval polarized light in the direction of the rectilinear polarized light, acting as a main axis, by dint of a double refraction effect by passage of it through a transmissible anti-ferromagnetic material element 3 in a manner to tilt a main axial direction of a refraction index oval substance by 45 deg.. If light is caused to pass a 1/4 wavelength plate 4, in which one of main axes is set to the direction of the rectilinear polarized light, the light from the rectilinear polarized light again, but it inclines by an angle phi which provides an oval rate in an oval polarized light. As a result, after a polarized light surface is vibrated by a Faraday cell 5 to convert it into an electric signal by means of a photoelectric multiplying tube 7, a lock-in amplifier 8 performs a phase detection to find the angle phi, and this causes measuring of a double refraction value with a high precision to detect the temperature of the detecting element 3.
JP56075338A 1981-05-19 1981-05-19 Photo temperature sensor Pending JPS57190235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075338A JPS57190235A (en) 1981-05-19 1981-05-19 Photo temperature sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075338A JPS57190235A (en) 1981-05-19 1981-05-19 Photo temperature sensor

Publications (1)

Publication Number Publication Date
JPS57190235A true JPS57190235A (en) 1982-11-22

Family

ID=13573365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075338A Pending JPS57190235A (en) 1981-05-19 1981-05-19 Photo temperature sensor

Country Status (1)

Country Link
JP (1) JPS57190235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7109409B2 (en) * 2004-11-05 2006-09-19 Industrial Technology Research Institute Magnetic field enhanced photovoltaic device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS509478A (en) * 1973-05-22 1975-01-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS509478A (en) * 1973-05-22 1975-01-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7109409B2 (en) * 2004-11-05 2006-09-19 Industrial Technology Research Institute Magnetic field enhanced photovoltaic device

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