US20030169802A1 - Method of stabilizing an infrared clinical thermometer and the apparatus thereof - Google Patents
Method of stabilizing an infrared clinical thermometer and the apparatus thereof Download PDFInfo
- Publication number
- US20030169802A1 US20030169802A1 US10/407,240 US40724003A US2003169802A1 US 20030169802 A1 US20030169802 A1 US 20030169802A1 US 40724003 A US40724003 A US 40724003A US 2003169802 A1 US2003169802 A1 US 2003169802A1
- Authority
- US
- United States
- Prior art keywords
- temperature
- clinical thermometer
- heating
- probe head
- surrounding
- 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.)
- Abandoned
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
Definitions
- the present invention relates to a method of stabilizing an infrared clinical thermometer and the apparatus thereof, and in particular, a method to stabilize the surrounding temperature of the cavity of the clinical thermometer probe head so as to avoid precision of measurement by the clinical thermometer as a result of unstable surrounding temperature.
- the cavity of the probe head of a common infrared clinical thermometer contains a guided wave tube, an infrared temperature sensing element and other related components so as to provide function of temperature measurement.
- the guided wave tube or other associated components are made from metal as the heating rate of metal is faster and the heat dissipation is also fast, and this provides a balance to the surrounding temperature, i.e., the surrounding temperature is evenly distributed along the tube body of the guided wave tube, however, this is not a stable temperature (some time at a higher temperature, and some time at a lower temperature).
- the infrared temperature-sensing element of the conventional infrared clinical thermometer will sense the temperature of the surrounding, and the measured temperature is thus not accurate.
- the surrounding temperature cannot be stabilized to provide a specific surrounding temperature. Therefore, after the infrared temperature sensing element is used to measure the temperature of the human body, the infrared temperature sensing element and the associated component in the course of temperature measuring are always affected by the change of the surrounding temperature, and in actual, the measured temperature is always not stable and the measured temperature may not be accepted by the user. Accordingly, it is an object of the present invention to provide a method of stabilizing a clinical thermometer and the apparatus thereof which mitigates the above drawbacks.
- Yet another object of the present invention is to provide a stabilizing device for a clinical thermometer comprising a clinical thermometer probe head which is made from a material capable of producing heat energy; and a heating controller connected to the probe head which provides heating for the probe head prior to temperature measuring to the pre-set surrounding temperature, thereby the heating controller causes the surrounding temperature to maintain at a constant and stable temperature such that the precision of measuring is accurate.
- FIG. 1 is a control flowchart of the heating of the clinical thermometer probe head of the present invention.
- FIG. 2 is a block diagram showing the temperature control system of the present invention.
- FIG. 3 is a perspective view of the heating element of the present invention.
- FIG. 4 is a schematic view showing the heating elements mounted within the interior of the probe head of the present invention.
- FIG. 5 schematically shows the heating element together with a non-conductive wave tube Infrared temperature sensor in accordance with the present invention.
- FIG. 6 is a schematic view showing the structure of a separate heating device of the present invention.
- FIGS. 1, 2, 3 , and 4 there is shown the device of stabilizing temperature of a clinical thermometer being mounted onto a probe head 11 of a clinical thermometer 10 .
- the probe head 11 contains a heating element 20 and the probe head 11 is a conventional element and further description thereto is not required.
- the probe head 11 is positioned at the front end of the clinical thermometer 10 and has a funnel shaped body which will contact with the ear and mouth of the human body in the course of temperature-measuring.
- the cavity of the probe head 11 is provided with an infrared temperature sensor 12 , a seat body 12 , a temperature-sensitive resistance 14 , a guided wave tube 15 .
- the material for the heating element 20 is a conductive material and will produce heat energy if a current passes through the heating element 20 .
- the shape of the heating element 20 is a conic shape and is either or indirectly contact with the enclosed associated components within the interior of the probe head 11 , or the partial enclosed components.
- One end of the heating element 20 is an opening, allowing the infrared ray to enter.
- the other end of the heating element 20 is pivotally mounted with a cap body 21 , allowing the opening up of the cap body 21 for replaceable of components, if there is a need.
- the heating element 20 is connected to a heating controller 30 which possesses temperature controlling function and by means of a circuit to control the heating element 20 by heating to an appropriate surrounding temperature so as to avoid the rapid exhaustion of the power supply due to the heating of the heating element 20 .
- the heating power source of the heating element 20 is designed in such a way that a separate power source is used and it is different from that used in the measuring system.
- the method of stabilizing the clinical thermometer comprises the steps of
- the temperature measuring element for instance, temperature sensitive resistance 14 , or the controller 30
- the pre-set surrounding temperature for instance 36° C. or 96.8° C.
- the heating element 20 is initiated to proceed with the heating until it reaches the surrounding temperature. If the pre-set temperature is attained, the heating element 20 stops to produce heat and a signal is sent out from the control circuit to the thermometer which indicates a signal to proceed to temperature measurement.
- the temperature stabilizing system makes use of the heating controller 30 to check the cavity of the probe head whether the pre-set surrounding temperature is reached so as to compensate a temperature thereto.
- the clinical thermometer can proceed with temperature measuring so as to obtain a precise measurement. If a measuring of the clinical temperature is not made during the waiting time, the clinical thermometer will be switch to OFF position.
- the probe head 11 of the clinical thermometer 10 can be used as an element used to proceed with the heating so as to reduce the cost of production.
- the heating element 20 of the present invention can be a clinical thermometer probe head 11 enclosed an infrared temperature-sensing element (thermometer) 12 with Infrared guided wave tube.
- the front end of the probe head 11 is provided with a convex lens 16 to effectively focus the Infrared ray emitted from the human body for the sensing of the Infrared temperature sensing element 12 .
- the pre-heating temperature-stabilizing device at the probe head 11 can be the heating element 20 or the probe head 11 , in order to reduce the battery exhaustion of the probe head 11 in the pre-heating process, a separate pre-heating device 40 , separated from the clinical thermometer, is provided.
- the pre-heating device 40 has a seat body shape, and the interior thereof is provided with a heating element 41 , a heating controller 42 , a power source device 43 , wherein the heating element 41 is designed into a shape corresponding to the external of the probe head 11 so that the probe head 11 is covered.
- the probe head 11 is placed at the heating element 41 , and heating is proceeded from the surrounding of the probe head 11 . After the heat reaches the pre-set temperature, the temperature is kept constant. The maximum heating temperature is similar to the pre-set temperature of the probe head 11 .
Abstract
A method of stabilizing an infrared clinical thermometer and the apparatus thereof are disclosed. The method comprises the steps of pre-heating the surrounding temperature to a pre-set temperature prior to using the clinical thermometer for measuring temperature; and providing compensational temperature by way of heat energy by a control circuit such that the surrounding temperature is maintained and stabilized at the pre-set temperature so as to avoid the change of the surrounding temperature from affecting the measured temperature. The stabilizing devices for a clinical thermometer comprises a clinical thermometer probe head which is a material capable of producing heat energy; and a heating controller connected to the probe head which provides cavity heating for the probe head prior to temperature measuring to the pre-set surrounding temperature, thereby the heating controller causes the surrounding temperature to maintain at a constant and stable temperature such that the precision of measuring is accurate.
Description
- This is a division of Ser. No. 09/899,200, filed Jul. 6, 2001.
- (a) Field of the Invention
- The present invention relates to a method of stabilizing an infrared clinical thermometer and the apparatus thereof, and in particular, a method to stabilize the surrounding temperature of the cavity of the clinical thermometer probe head so as to avoid precision of measurement by the clinical thermometer as a result of unstable surrounding temperature.
- (b) Description of the Prior Art
- The cavity of the probe head of a common infrared clinical thermometer contains a guided wave tube, an infrared temperature sensing element and other related components so as to provide function of temperature measurement. However, the guided wave tube or other associated components are made from metal as the heating rate of metal is faster and the heat dissipation is also fast, and this provides a balance to the surrounding temperature, i.e., the surrounding temperature is evenly distributed along the tube body of the guided wave tube, however, this is not a stable temperature (some time at a higher temperature, and some time at a lower temperature). This temperature will affect the accuracy of the detected temperature data, and the infrared temperature-sensing element of the conventional infrared clinical thermometer will sense the temperature of the surrounding, and the measured temperature is thus not accurate. Although there is guided wave tube made from plastic material, the surrounding temperature cannot be stabilized to provide a specific surrounding temperature. Therefore, after the infrared temperature sensing element is used to measure the temperature of the human body, the infrared temperature sensing element and the associated component in the course of temperature measuring are always affected by the change of the surrounding temperature, and in actual, the measured temperature is always not stable and the measured temperature may not be accepted by the user. Accordingly, it is an object of the present invention to provide a method of stabilizing a clinical thermometer and the apparatus thereof which mitigates the above drawbacks.
- Accordingly, it is an object of the present invention to provide a method of stabilizing a clinical thermometer, comprising the steps of pre-heating the surrounding temperature to a pre-set temperature prior to using the clinical thermometer for measuring temperature; and providing compensational temperature by way of heat energy by a control circuit such that the surrounding temperature is maintained and stabilized at the pre-set temperature so as to avoid the change of the surrounding temperature from affecting the measured temperature.
- Yet another object of the present invention is to provide a stabilizing device for a clinical thermometer comprising a clinical thermometer probe head which is made from a material capable of producing heat energy; and a heating controller connected to the probe head which provides heating for the probe head prior to temperature measuring to the pre-set surrounding temperature, thereby the heating controller causes the surrounding temperature to maintain at a constant and stable temperature such that the precision of measuring is accurate.
- The foregoing objects and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
- Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
- FIG. 1 is a control flowchart of the heating of the clinical thermometer probe head of the present invention.
- FIG. 2 is a block diagram showing the temperature control system of the present invention.
- FIG. 3 is a perspective view of the heating element of the present invention.
- FIG. 4 is a schematic view showing the heating elements mounted within the interior of the probe head of the present invention.
- FIG. 5 schematically shows the heating element together with a non-conductive wave tube Infrared temperature sensor in accordance with the present invention.
- FIG. 6 is a schematic view showing the structure of a separate heating device of the present invention.
- For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings. Specific language will be used to describe same. It will, nevertheless, be understood that no limitation of the scope of the invention is thereby intended, alterations and further modifications in the illustrated device, and further applications of the principles of the invention as illustrated herein being contemplated as would normally occur to one skilled in the art to which the invention relates.
- Referring to FIGS. 1, 2,3, and 4 there is shown the device of stabilizing temperature of a clinical thermometer being mounted onto a
probe head 11 of aclinical thermometer 10. - The
probe head 11 contains aheating element 20 and theprobe head 11 is a conventional element and further description thereto is not required. Theprobe head 11 is positioned at the front end of theclinical thermometer 10 and has a funnel shaped body which will contact with the ear and mouth of the human body in the course of temperature-measuring. The cavity of theprobe head 11 is provided with aninfrared temperature sensor 12, aseat body 12, a temperature-sensitive resistance 14, a guidedwave tube 15. The material for theheating element 20 is a conductive material and will produce heat energy if a current passes through theheating element 20. The shape of theheating element 20 is a conic shape and is either or indirectly contact with the enclosed associated components within the interior of theprobe head 11, or the partial enclosed components. One end of theheating element 20 is an opening, allowing the infrared ray to enter. The other end of theheating element 20 is pivotally mounted with acap body 21, allowing the opening up of thecap body 21 for replaceable of components, if there is a need. Theheating element 20 is connected to aheating controller 30 which possesses temperature controlling function and by means of a circuit to control theheating element 20 by heating to an appropriate surrounding temperature so as to avoid the rapid exhaustion of the power supply due to the heating of theheating element 20. The heating power source of theheating element 20 is designed in such a way that a separate power source is used and it is different from that used in the measuring system. - In accordance with the present invention, the method of stabilizing the clinical thermometer comprises the steps of
- (a) pre-heating the surrounding temperature to a pre-set temperature prior to using the clinical thermometer for measuring temperature; and
- (b) providing compensational temperature by way of heat energy by a control circuit such that the surrounding temperature is maintained and stabilized at the pre-set temperature so as to avoid the change of the surrounding temperature from affecting the measured temperature.
- The details of the controlling flow chart are as follows: When the
clinical thermometer 10 is switched to the ON position, the temperature measuring element (for instance, temperaturesensitive resistance 14, or the controller 30) will first inspect the cavity of theclinical thermometer 10 whether it is at the pre-set surrounding temperature (for instance 36° C. or 96.8° C.). If this temperature has not been reached, theheating element 20 is initiated to proceed with the heating until it reaches the surrounding temperature. If the pre-set temperature is attained, theheating element 20 stops to produce heat and a signal is sent out from the control circuit to the thermometer which indicates a signal to proceed to temperature measurement. After that the temperature stabilizing system makes use of theheating controller 30 to check the cavity of the probe head whether the pre-set surrounding temperature is reached so as to compensate a temperature thereto. - Thus, during the waiting time, the clinical thermometer can proceed with temperature measuring so as to obtain a precise measurement. If a measuring of the clinical temperature is not made during the waiting time, the clinical thermometer will be switch to OFF position.
- In accordance with the present invention, other than pre-heating the
probe head 11 of theclinical thermometer 10 by theheating element 20, theprobe head 11 can be used as an element used to proceed with the heating so as to reduce the cost of production. - Referring to FIG. 5, the
heating element 20 of the present invention can be a clinicalthermometer probe head 11 enclosed an infrared temperature-sensing element (thermometer) 12 with Infrared guided wave tube. The front end of theprobe head 11 is provided with aconvex lens 16 to effectively focus the Infrared ray emitted from the human body for the sensing of the Infraredtemperature sensing element 12. - Referring to FIG. 6, the pre-heating temperature-stabilizing device at the
probe head 11 can be theheating element 20 or theprobe head 11, in order to reduce the battery exhaustion of theprobe head 11 in the pre-heating process, a separatepre-heating device 40, separated from the clinical thermometer, is provided. Thepre-heating device 40 has a seat body shape, and the interior thereof is provided with aheating element 41, aheating controller 42, apower source device 43, wherein theheating element 41 is designed into a shape corresponding to the external of theprobe head 11 so that theprobe head 11 is covered. - Thus, before the
clinical thermometer 40 proceeds to measuring temperature of a human body, theprobe head 11 is placed at theheating element 41, and heating is proceeded from the surrounding of theprobe head 11. After the heat reaches the pre-set temperature, the temperature is kept constant. The maximum heating temperature is similar to the pre-set temperature of theprobe head 11. - It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
- While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Claims (1)
1. A stabilizing device for an infrared clinical thermometer comprising:
a pre-heating device separated from the clinical thermometer, wherein the pre-heating device is a seat body; and
a heating element, a heating controller, a power source device being mounted within the pre-heating device, wherein the heating element has a shape corresponding to that of the external of the probe head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/407,240 US20030169802A1 (en) | 2001-07-06 | 2003-04-07 | Method of stabilizing an infrared clinical thermometer and the apparatus thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/899,200 US6632016B2 (en) | 2001-07-06 | 2001-07-06 | Method of stabilizing an infrared clinical thermometer and the apparatus thereof |
US10/407,240 US20030169802A1 (en) | 2001-07-06 | 2003-04-07 | Method of stabilizing an infrared clinical thermometer and the apparatus thereof |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/899,200 Division US6632016B2 (en) | 2001-07-06 | 2001-07-06 | Method of stabilizing an infrared clinical thermometer and the apparatus thereof |
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US20030169802A1 true US20030169802A1 (en) | 2003-09-11 |
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US09/899,200 Expired - Fee Related US6632016B2 (en) | 2001-07-06 | 2001-07-06 | Method of stabilizing an infrared clinical thermometer and the apparatus thereof |
US10/407,240 Abandoned US20030169802A1 (en) | 2001-07-06 | 2003-04-07 | Method of stabilizing an infrared clinical thermometer and the apparatus thereof |
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US09/899,200 Expired - Fee Related US6632016B2 (en) | 2001-07-06 | 2001-07-06 | Method of stabilizing an infrared clinical thermometer and the apparatus thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050220170A1 (en) * | 2001-04-11 | 2005-10-06 | Omron Corporation | Electronic clinical thermometer |
US20110200069A1 (en) * | 2007-05-04 | 2011-08-18 | Drager Safety Ag & Co. Kgaa | Detection device and process for detecting a temperature of an object |
US20110243187A1 (en) * | 2008-03-31 | 2011-10-06 | Hsueh-Yu Lu | Pre-heat type clinical thermometer |
CN103234647A (en) * | 2013-04-16 | 2013-08-07 | 广东欧珀移动通信有限公司 | Temperature correction method and temperature correction system of embedded system |
Families Citing this family (10)
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US7014358B2 (en) * | 2001-02-19 | 2006-03-21 | Braun Gmbh | Radiation thermometer comprising a heated measuring tip |
GB2401207B (en) * | 2003-04-30 | 2006-11-22 | Agilent Technologies Inc | Master slave arrangement |
US20060153272A1 (en) * | 2005-01-11 | 2006-07-13 | Kun-Sung Chen | Ear thermometer |
US7704605B2 (en) * | 2006-03-28 | 2010-04-27 | Eastman Chemical Company | Thermoplastic articles comprising cyclobutanediol having a decorative material embedded therein |
DE102005033506A1 (en) * | 2005-07-14 | 2006-06-14 | Braun Gmbh | Infra red temperature measurement in aural channel using heated tip, takes into account both ambient temperature and measured radiation temperature |
US7314310B2 (en) * | 2006-04-13 | 2008-01-01 | The General Electric Company | Predictive temperature probe with proximity sensor |
TW200841859A (en) * | 2007-04-27 | 2008-11-01 | Actherm Inc | Infrared thermometer |
CN102727189B (en) * | 2011-04-12 | 2014-08-20 | 深圳市金亿帝科技有限公司 | Infrared thermometer measuring method |
CN104287697B (en) * | 2014-10-13 | 2017-02-15 | 南京信息工程大学 | Non-contact infrared thermometer |
CN105973477A (en) * | 2016-06-20 | 2016-09-28 | 苏州华徕光电仪器有限公司 | Signal acquiring and amplifying circuit of infrared temperature measuring device |
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US3681991A (en) * | 1970-07-06 | 1972-08-08 | United States Banknote Corp | Electronic thermometer |
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Cited By (8)
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US20050220170A1 (en) * | 2001-04-11 | 2005-10-06 | Omron Corporation | Electronic clinical thermometer |
US7059767B2 (en) * | 2001-04-11 | 2006-06-13 | Omron Corporation | Electronic clinical thermometer |
US7284904B2 (en) * | 2001-04-11 | 2007-10-23 | Omron Corporation | Electronic clinical thermometer |
US20110200069A1 (en) * | 2007-05-04 | 2011-08-18 | Drager Safety Ag & Co. Kgaa | Detection device and process for detecting a temperature of an object |
US8322921B2 (en) * | 2007-05-04 | 2012-12-04 | Dräger Safety AG & Co. KGaA | Detection device and process for detecting a temperature of an object |
US20110243187A1 (en) * | 2008-03-31 | 2011-10-06 | Hsueh-Yu Lu | Pre-heat type clinical thermometer |
US8303177B2 (en) * | 2008-03-31 | 2012-11-06 | Hsueh-Yu Lu | Pre-heat type clinical thermometer |
CN103234647A (en) * | 2013-04-16 | 2013-08-07 | 广东欧珀移动通信有限公司 | Temperature correction method and temperature correction system of embedded system |
Also Published As
Publication number | Publication date |
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US6632016B2 (en) | 2003-10-14 |
US20030007546A1 (en) | 2003-01-09 |
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