Галерея 2898791
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Галерея 2898791
The utility model relates to a human-body temperature sensor, which comprises a platinum resistance temperature-sensitive element, three insulated leads connected with the platinum resistance temperature-sensitive element with the same resistance value, and a sensor head packing the platinum resistance temperature-sensitive element. The platinum resistance temperature-sensitive element includes two leading feet, two of the three leads simultaneously are connected with one leading foot of the platinum resistance temperature-sensitive element, and the other lead is connected with the other leading foot of the platinum resistance temperature-sensitive element. The adoption of the platinum resistance temperature-sensitive element guarantees the precision under the high resolution. The adoption of three-line type resistance sensor can eliminate the line resistance error, improve the technical performance, and has the advantages of high resolution, high precision and good stability. Matching with the precision digital temperature instrument with display modification function, the sensor and the instrument can be calibrated and modified on the whole. Within the range of 35 Celsius system to 45 Celsius system (human measured temperature), the resolution of 0.01 Celsius system and the precision of plus or minus 0.03 Celsius system can be reached, and the measured temperature can be displayed, recorded and controlled.
The utility model relates to the human body temperature measuring equipment, more particularly, relates to a kind of temperature sensor for human body that can accurately measure human body temperature.
The modern medical service technology is had higher requirement to the accurate surveying and the control of human body temperature, and the medical applications that some are special is accurately measured reliably or the temperature of control human body becomes the task of top priority.
Traditional measurement of bldy temperature adopts mercury clinical thermometer, and resolving power has only 0.1 ℃, and measuring accuracy can only reach 0.3 ℃ level, and can not realize signal output, thereby can not realize record and temperature control automatically.The temperature probe that more present Medical Instruments is joined adopts the NTC semiconductor as temperature-sensing element, and temperature-sensing element is connected to the precision digital thermometric instrument, carries out demonstration, record and the control of temperature.Though these Medical Instruments can realize signal output and record, control automatically, but resolving power and measuring accuracy all can only reach the level of mercury clinical thermometer, if raising resolving power, its indicating value reappearance and long-time stability can not get guaranteeing, limited the development of body temperature observation and control technology.
The technical problems to be solved in the utility model is, at the defective of the above-mentioned human body temperature measuring equipment of prior art, provides the temperature sensor for human body of a kind of resolving power height, precision height, good stability.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of temperature sensor for human body, comprise platinum resistance temperature-sensing element, three sensor head that mutually insulated has the lead of same resistance value and wraps up described platinum resistance temperature-sensing element that are connected with described platinum resistance temperature-sensing element; Described platinum resistance temperature-sensing element comprises two pins, and two whiles in described three leads are connected with a pin of described platinum resistance temperature-sensing element, another root lead is connected with another root pin of described platinum resistance temperature-sensing element.
In the temperature sensor for human body of the present utility model, the periphery of described three leads is enclosed with sheath, and described sheath is tightly connected with described sensor head near one section of described platinum resistance temperature-sensing element.Described sheath is the medical grade silicon rubber sheath.
In the temperature sensor for human body of the present utility model, described sensor head is for inserting human intracavity's cylindrical head.Perhaps, described sensor head is for ease of sticking on the button shaped head of body surface.
In the temperature sensor for human body of the present utility model, relative fixed between described three leads and the described silicone rubber jacket.
Implement temperature sensor for human body of the present utility model, have following beneficial effect: adopt the most stable platinum resistance of physics and chemical property as temperature-sensing element, improved the precision of measured temperature, thereby guaranteed the degree of accuracy under the high resolution condition; Adopt three-wire type electric resistance sensor structure, eliminate the lead resistance error, further improved the technical feature of sensor, have the advantage of resolving power height, degree of accuracy height, good stability.Cooperate and have the precision digital thermometric instrument that shows debugging functions, carry out the piece calibration correction of sensor and instrument, in 35 ℃-45 ℃ (human body thermometric) scopes, reach 0.01 ℃ resolving power and ± 0.03 ℃ degree of accuracy, and the temperature that measures can be shown, write down and control.
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of an embodiment of temperature sensor for human body of the present utility model.
Fig. 2 is the structural representation of another embodiment of temperature sensor for human body of the present utility model.
Fig. 3 is the structural representation of another angle of the temperature sensor for human body among Fig. 2.
As shown in Figure 1, temperature sensor for human body of the present utility model comprises platinum resistance temperature-sensing element 4, three leads, sheath and sensor head.
In the present embodiment, described lead be three independent insulation equal in quality, equal length, meet the plastic insulation cord of UL standard.Lead 1 is that red lead, lead 2 and lead 3 are white wire in the drawings.Be enclosed with described sheath in the periphery of described lead, described sheath is the medical grade silicon rubber sheath, thereby forms three core medical grade silicon rubber sheath flexible cords 6 jointly with three leads.When encapsulated sensor, length with three core medical grade silicon rubber sheath flexible cords, 6 intercepting actual needs, at one end (left end in as figure) ring cutting silicone rubber jacket 5mm, and keep the insulation of three leads excellent, insulation sleeve with three leads divests 2mm respectively again, and keeps the copper core of three leads excellent.Two pins of described platinum resistance temperature-sensing element 4 all are cut into the length of 3mm, a lead (as red lead) 1 firmly welds with a pin of platinum resistance temperature-sensing element 4, and other two leads (as white wire) 2 and 3 firmly weld with another pin of platinum resistance temperature-sensing element 4 simultaneously, will all burn-on each root thin copper wire of stranded conductor during welding, its spot size is not more than 2mm.Described sensor head 5 answers the use mould to guarantee moulding, both medical grade silicon rubber can be heated injection mo(u)lding, also available bonding way moulding.Described sensor head 5 can be packaged into cylindrical head, thereby can be inserted into the human intracavity, as shown in Figure 1; Also can be packaged into the button shaped head, thereby be convenient to paste body surface, as Fig. 2, shown in Figure 3.Must guarantee in the forming process around described platinum resistance temperature-sensing element 4 without any air gap, bubble.And one section of the close described platinum resistance temperature-sensing element 4 of sensor head 5 and sheath is tightly connected, thereby the junction that guarantees lead and platinum resistance temperature-sensing element 4 is in sealing state.The other end (as right-hand member among the figure) the ring cutting silicone rubber jacket 30-50mm of three core medical grade silicon rubber sheath flexible cords 6, and keep the insulation sleeve of three leads excellent, insulation sleeve with three leads divests the 10mm insulation respectively again, and keeps the copper core of three leads excellent.The copper core of every lead is warded off tin after stranded respectively, prevent the breakdown of multiply thin copper wire or miss.In order to guarantee to improve the serviceable life of sensor, fixing between lead in the three core medical grade silicon rubber sheath flexible cords 6 and the silicone rubber jacket, can not relative motion.
Three leads with packaged temperature sensor for human body are connected respectively in the precision digital thermometric instrument with demonstration debugging functions again, carry out the piece calibration correction of sensor and instrument, can obtain in 35 ℃-45 ℃ (human body thermometric) scopes, reach 0.01 ℃ resolving power and ± 0.03 ℃ degree of accuracy, and the temperature that measures can be shown, write down and control.
1, a kind of temperature sensor for human body is characterized in that, comprises platinum resistance temperature-sensing element, three sensor head that mutually insulated has the lead of same resistance value and wraps up described platinum resistance temperature-sensing element that are connected with described platinum resistance temperature-sensing element; Described platinum resistance temperature-sensing element comprises two pins, and two whiles in described three leads are connected with a pin of described platinum resistance temperature-sensing element, another root lead is connected with another root pin of described platinum resistance temperature-sensing element.
2, temperature sensor for human body according to claim 1 is characterized in that, the periphery of described three leads is enclosed with sheath, and described sheath is tightly connected with described sensor head near one section of described platinum resistance temperature-sensing element.
3, temperature sensor for human body according to claim 2 is characterized in that, described sheath is the medical grade silicon rubber sheath.
4, temperature sensor for human body according to claim 1 and 2 is characterized in that, described sensor head is for inserting human intracavity's cylindrical head.
5, temperature sensor for human body according to claim 1 and 2 is characterized in that, described sensor head is for ease of sticking on the button shaped head of body surface.
6, temperature sensor for human body according to claim 2 is characterized in that, relative fixed between described three leads and the described silicone rubber jacket.
Granted publication date :
20070509
CN 200620013576
CN2898791Y
( en )
CN2898791Y
true
CN2898791Y
( en )
CN 200620013576
Expired - Fee Related
CN2898791Y
( en )
CN104215351A
( en )
*
CN104215351A
( en )
*
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Within the range of 35 Celsius system to 45 Celsius system (human measured temperature), the resolution of 0.01 Celsius system and the precision of plus or minus 0.03 Celsius system can be reached,...
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Within the range of 35 Celsius system to 45 Celsius system (human measured temperature), the resolution of 0.01 Celsius system and the precision of plus or minus 0.03 Celsius system can be reached,...
11. Jan. 2023 For the 10 of 10-spot plays the prize amounts are shared equally by the total number of winners. See payouts tooltip above for full details.
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Within the range of 35 Celsius system to 45 Celsius system (human measured temperature), the resolution of 0.01 Celsius system and the precision of plus or minus 0.03 Celsius system can be reached,...
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Галерея 2419039