Boots – shoes – and leggings
Patent
1987-01-20
1989-01-10
Lall, Parshotam S.
Boots, shoes, and leggings
128736, 374133, G01J 518, G01K 310
Patent
active
047978406
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND AND SUMMARY OF THE INVENTION
This invention relates to an electronic thermometer and more particularly to a noncontacting infrared electronic thermometer and method for measuring the temperature of an object.
The temperature of an object, such as the human body, can be determined by using a contact thermosensor or by measuring the naturally radiated energy from the body such as the radiated energy in the far infrared range. The infrared radiation is directly related to temperature of the object and can be utilized to determine the temperature of the body.
It is an object of the present invention to provide a new and improved noncontacting electronic thermometer which is accurate, reliable and economical to manufacture.
Another object of the invention is to provide a noncontacting electronic thermometer for measuring the temperature of an object virtually instantaneously.
A further object of the invention is to provide a noncontacting electronic thermometer for medical use which is compact, inexpensive and convenient and easy to use.
A further object of the invention is to provide a heat detector for medical use which detects warm spots on the surface of the skin.
A still further object of the invention is to provide a method for measuring the temperature of a body utilizing a high-speed pyroelectric infrared sensor and a relatively slow speed ambient temperature sensor.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagrammatical broken away perspective view of the electronic thermometer of the present invention.
FIG. 2 is a diagrammatical schematic view of the electronic thermometer of the present invention.
FIG. 3 is a diagrammatical longitudinal sectional view of the pyroelectic sensor.
FIG. 4 is a diagrammatical sectional view of the pyroelectric film material of the pyroelectric sensor of FIG. 3.
FIG. 5 is a diagrammatical longitudinal sectional view of another embodiment of a pyroelectric sensor.
FIG. 6 is a diagrammatical sectional view of the beam aiming element of FIG. 2.
FIG. 7 is an electrical schematic diagram of the amplifier circuit of FIG. 2.
FIG. 8 is a real time graphical representation of the operational sensor signal.
FIG. 9 is a diagrammatical schematic view of a calibration assembly for the electronic thermometer.
FIG. 10 is a graphic view of the wave forms produced in the calibration assembly of FIG. 9.
FIG. 11 is another embodiment of the electrode configuration of the pyroelectric sensor of FIG. 9.
FIG. 12 is a further embodiment of the electrode configuration of the pyroelectric sensor of FIG. 9.
FIG. 13 is a diagrammatical schematic view of an alternate calibration assembly.
FIG. 14 is a diagrammatical perspective view of a heat detector.
FIG. 15 is a diagrammatical schematic view of the heat detector of FIG. 14.
FIG. 16 is a diagrammatical longitudinal sectional view of an additional embodiment of a pyroelectric sensor.
FIG. 17 is a diagrammatical longitudinal sectional view of a further embodiment of a pyroelectric sensor.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to the drawings wherein like numerals are used to identify the same or like parts, the electronic thermometer of the present invention is generally designated by the numeral 10. Referring to FIGS. 1 and 2, thermometer 10 generally comprises a housing 12 forming an interior chamber 13, a barrel or wave guide 14 for directing infrared radiation into the chamber 13, a shutter assembly 16 for controlling the passage of infrared radiation through the barrel 14, a pyroelectric sensor assembly 18, an ambient temperature sensor 20, and an electronic circuit 22.
The housing 12 has an elongated lower end 24 which forms a pistol grip type handle of convenient size for one hand operation The upper end 26 of the housing 12 forms the interior chamber 13 for mounting the pyroelectric sensor assembly 18 and the ambient temperature sensor 20, and provides a shield to exterior infrared radiation other than that received through the barrel 14.
The barrel 14 is mounted to the forward side 28 of housing 12 in ali
REFERENCES:
patent: 3023398 (1962-02-01), Siegert
patent: 3115030 (1963-12-01), McHenry
patent: 3549960 (1970-12-01), Wedlock
patent: 3777568 (1973-12-01), Risgin et al.
patent: 3809920 (1974-05-01), Cohen et al.
patent: 4001586 (1977-01-01), Fraioli
patent: 4005605 (1977-02-01), Michael
patent: 4147562 (1979-04-01), Chiang et al.
patent: 4379971 (1983-04-01), Smith et al.
patent: 4418392 (1983-11-01), Hata
patent: 4423408 (1983-12-01), Place
patent: 4527896 (1985-07-01), Irani et al.
patent: 4634294 (1987-01-01), Christol et al.
Thin Film Cuts Time of Detector Response, Electronics, Jun. 16, 1982.
Cosimano Edward R.
Drake Hugh H.
Lall Parshotam S.
Thermoscan Inc.
LandOfFree
Infrared electronic thermometer and method for measuring tempera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Infrared electronic thermometer and method for measuring tempera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared electronic thermometer and method for measuring tempera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2112101