JPS55121123A - Contactless temperature sensing unit - Google Patents
Contactless temperature sensing unitInfo
- Publication number
- JPS55121123A JPS55121123A JP2860679A JP2860679A JPS55121123A JP S55121123 A JPS55121123 A JP S55121123A JP 2860679 A JP2860679 A JP 2860679A JP 2860679 A JP2860679 A JP 2860679A JP S55121123 A JPS55121123 A JP S55121123A
- Authority
- JP
- Japan
- Prior art keywords
- emissivity
- repsilon
- energy
- wepsilon
- epsilon
- 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
Links
- 238000005259 measurement Methods 0.000 abstract 2
- YBNMDCCMCLUHBL-UHFFFAOYSA-N (2,5-dioxopyrrolidin-1-yl) 4-pyren-1-ylbutanoate Chemical compound C=1C=C(C2=C34)C=CC3=CC=CC4=CC=C2C=1CCCC(=O)ON1C(=O)CCC1=O YBNMDCCMCLUHBL-UHFFFAOYSA-N 0.000 abstract 1
- 230000036760 body temperature Effects 0.000 abstract 1
- 238000012937 correction Methods 0.000 abstract 1
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
- G01J5/0003—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiant heat transfer of samples, e.g. emittance meter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
PURPOSE:To improve temperature sensing precision by correcting emissivity of a body surface, by putting a unit measuring the emissivity and that making automatic corrections of the emissivity of an infrared-ray thermometer into interlocking operation when taking contactless measurements of a body temperature and body-surface emissivity. CONSTITUTION:When projection energy w0 is radiated from emissivity correcting light radiator 1 to body 2 to be measured, absorbed energy wepsilon is absorbed and reflected energy wu is reflected and detected by infrared-ray detector 3 of a PbSe pyroelectric type, etc. Then, operator 4 finds energy wepsilon absorbed by measured body 2 to calculate emissivity epsilon (=wepsilon/w0). On the output side of detector 7 detecting energy wepsilon radiated from measured body 2, a voltage divider is provided which consists of variable resistance Repsilon and fixed resistance R, and on the basis of emissivity (epsilon), the rotation angle of this variable resistance Repsilon is controlled by servomechanism 6 to fix resistance Repsilon' satisfying 1+Repsilon'/Repsilon=epsilon<-1/41>. Thus, the output of the infrared-ray detector is corrected to a constant value without reference to variation in emissivity (epsilon), so that an accurate measurement of temperature will come into effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2860679A JPS55121123A (en) | 1979-03-14 | 1979-03-14 | Contactless temperature sensing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2860679A JPS55121123A (en) | 1979-03-14 | 1979-03-14 | Contactless temperature sensing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55121123A true JPS55121123A (en) | 1980-09-18 |
Family
ID=12253228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2860679A Pending JPS55121123A (en) | 1979-03-14 | 1979-03-14 | Contactless temperature sensing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55121123A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5501637A (en) * | 1993-08-10 | 1996-03-26 | Texas Instruments Incorporated | Temperature sensor and method |
| US5743644A (en) * | 1995-05-31 | 1998-04-28 | Anritsu Meter Co., Ltd. | Temperature measuring apparatus |
-
1979
- 1979-03-14 JP JP2860679A patent/JPS55121123A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5501637A (en) * | 1993-08-10 | 1996-03-26 | Texas Instruments Incorporated | Temperature sensor and method |
| US5743644A (en) * | 1995-05-31 | 1998-04-28 | Anritsu Meter Co., Ltd. | Temperature measuring apparatus |
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