GB1226540A - - Google Patents
Info
- Publication number
- GB1226540A GB1226540A GB1226540DA GB1226540A GB 1226540 A GB1226540 A GB 1226540A GB 1226540D A GB1226540D A GB 1226540DA GB 1226540 A GB1226540 A GB 1226540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- detector
- temperature
- ambient
- radiation
- disc
- 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.)
- Expired
Links
- 230000005855 radiation Effects 0.000 abstract 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 abstract 1
- 229910052738 indium Inorganic materials 0.000 abstract 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 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
- G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer
- G01J5/56—Electrical features thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Radiation Pyrometers (AREA)
Abstract
1,226,540. Radiation thermometer. MULLARD Ltd. Aug. 7, 1968 [Dec. 12, 1967], No.56405/67. Heading G1A. The temperature of a body is measured in an arrangement including a clockwork driven apertured disc 2 whereby radiation from the body passing through a light pipe 1 falls on a detector 4 alternately with radiation from the disc itself which is at ambient temperature, correction for the ambient being made by adding in unit 12 a second signal of the same frequency to the amplified output of detector 4 developed by the disc apertures between a gallium arsenide source 7 and a detector 8 and modified in respect of the ambient temperature by a temperature sensitive resistor. The temperature is displayed by a meter 14 after phase-sensitive rectification in unit 10. The detector 4 which may be of indium antimonids responds to infrared and a filter 3 is included in the path. A circuit in which the detector 4 is connected in series with the light source 7 and in which a Zener diode is included is described with reference to Fig. 2 (not shown). A full transistor circuit including a resistor for adjusting the symmetry of the correcting signal is also described. The arrangement is said to be suitable for measuring temperatures close to ambient and its use as a clinical thermometer is suggested.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5640567 | 1967-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1226540A true GB1226540A (en) | 1971-03-31 |
Family
ID=10476533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1226540D Expired GB1226540A (en) | 1967-12-12 | 1967-12-12 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1226540A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887229A (en) * | 1986-06-20 | 1989-12-12 | Martin Lehmann | Method and apparatus for a non-contact measuring of a temperature of a body |
| US5017019A (en) * | 1989-04-14 | 1991-05-21 | Exergen Corporation | Radiation detector for differential biological temperature readings |
| US5199436A (en) * | 1988-12-06 | 1993-04-06 | Exergen Corporation | Radiation detector having improved accuracy |
| US5826982A (en) * | 1993-09-16 | 1998-10-27 | Heimann Optoelectronics Gmbh | Temperature sensing module |
| US7314309B2 (en) | 1997-06-24 | 2008-01-01 | Exergen Corporation | Ambient and perfusion normalized temperature detector |
| US7346386B2 (en) | 1998-09-11 | 2008-03-18 | Exergen Corporation | Temporal artery temperature detector |
| EP2437039A2 (en) | 2010-09-30 | 2012-04-04 | Medisim Ltd. | Ergonomic hand held thermometer |
-
1967
- 1967-12-12 GB GB1226540D patent/GB1226540A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887229A (en) * | 1986-06-20 | 1989-12-12 | Martin Lehmann | Method and apparatus for a non-contact measuring of a temperature of a body |
| US4955727A (en) * | 1986-06-20 | 1990-09-11 | Martin Lehmann | Method and apparatus for a non-contact measuring of a temperature of a body |
| US5199436A (en) * | 1988-12-06 | 1993-04-06 | Exergen Corporation | Radiation detector having improved accuracy |
| US5017019A (en) * | 1989-04-14 | 1991-05-21 | Exergen Corporation | Radiation detector for differential biological temperature readings |
| US5826982A (en) * | 1993-09-16 | 1998-10-27 | Heimann Optoelectronics Gmbh | Temperature sensing module |
| US7314309B2 (en) | 1997-06-24 | 2008-01-01 | Exergen Corporation | Ambient and perfusion normalized temperature detector |
| US7346386B2 (en) | 1998-09-11 | 2008-03-18 | Exergen Corporation | Temporal artery temperature detector |
| US7787938B2 (en) | 1998-09-11 | 2010-08-31 | Exergen Corporation | Temporal artery temperature detector |
| US9194749B2 (en) | 1998-09-11 | 2015-11-24 | Exergen Corporation | Temporal artery temperature detector |
| EP2437039A2 (en) | 2010-09-30 | 2012-04-04 | Medisim Ltd. | Ergonomic hand held thermometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |