CN201266119Y - Temperature compensation circuit - Google Patents
Temperature compensation circuit Download PDFInfo
- Publication number
- CN201266119Y CN201266119Y CNU2008201471666U CN200820147166U CN201266119Y CN 201266119 Y CN201266119 Y CN 201266119Y CN U2008201471666 U CNU2008201471666 U CN U2008201471666U CN 200820147166 U CN200820147166 U CN 200820147166U CN 201266119 Y CN201266119 Y CN 201266119Y
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- temperature
- human body
- compensation circuit
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- chip microcomputer
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- 230000036760 body temperature Effects 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a temperature compensating circuit. Two temperature compensating circuits are respectively used for compensating environmental temperature and human body temperature. Firstly, an environmental temperature compensating circuit is used for compensating the influence caused by the environmental temperature to electronic components of an instrument, and a human body temperature compensating circuit is used for compensating the influence caused by outside temperature to the human body surface temperature.
Description
Technical field
The utility model belongs to the electronic circuit technology field, and is especially a kind of specially at measuring the temperature-compensation circuit that human body temperature compensates under the different environment temperatures.
Background technology
Under different environment, survey the temperature of same object (such as human body), be certain to change, this is that the electronic devices and components of instrument can change because during variation of ambient temperature, can be offset by Temperature Influence as the linearity of sensor.And human body is under different environment, and the temperature of surface skin also has difference, and under the high temperature, the human surface temperature may be more higher than actual temperature, and under low temperature or the air-conditioning, the surface temperature of human body is subjected to the influence of cold wind again, can be more on the low side than actual temperature.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model aims to provide a kind of temperature-compensation circuit that utilizes two temperature-compensation circuits respectively environment temperature and human body temperature to be compensated.
For achieving the above object, the utility model comprises an ambient temperature compensation circuit and a human body temperature compensating circuit.At first utilize the ambient temperature compensation circuit that environment temperature is carried out temperature compensation to the influence that the variation of the electronic devices and components of instrument causes, again by the human body temperature compensating circuit to external world temperature temperature compensation is carried out in human surface temperature's influence.
The thermistor that described ambient temperature compensation circuit utilizes sensor to carry compensates, and connects first divider resistance from the 1.2V voltage stabilizing mouth of single-chip microcomputer, and first divider resistance connects the room temperature pin anode of sensor again.Insert the I/O mouth of single-chip microcomputer simultaneously through RC filtering one, sensor room temperature pin negative terminal is received simulation ground, when around variation of ambient temperature the time, the resistance of the thermistor of sensor also can be along with ambient temperature changes, the magnitude of voltage that is sent to the I/O mouth also can change, be that instrument just measures different environment temperatures, program the inside is again according to the varying environment temperature that measures, and the reading of instrument is compensated.
Under the different environment, the temperature of human body surface can be different, according to the experiment gained, the human surface temperature can raise under the high temperature, human body temperature can be on the low side under the low temperature, the utility model utilizes described human body temperature compensating circuit can measure ambient temperature, and the reading of measuring according to the human body temperature compensating circuit is made corresponding compensation to human body temperature again.The environment temperature that the human body temperature compensating circuit is measured is to be different from the ambient temperature compensation circuit, can not be subjected to the target temperature influence, is used for specially doing compensation at human body.When measuring an excessive temperature, because of being subjected to the influence of thermal source, the environment temperature of measurement has deviation around the sensor such as long-time.The human body temperature compensating circuit connects second divider resistance from the 1.2V voltage stabilizing mouth of single-chip microcomputer, second divider resistance connects a 3950100K thermistor again to ground, insert the I/O mouth of single-chip microcomputer simultaneously through RC filtering two, when the temperature of human body surface is subjected to temperature and influences, the resistance of 3950 power 100K thermistors also can be along with ambient temperature changes, the magnitude of voltage that is sent to the I/O mouth also can change, and promptly instrument just measures different ambient temperatures and comes human body temperature is made corresponding compensation.
After adopting the utility model, respectively environment temperature and human body temperature are compensated, can reach accurate measurement effect by ambient temperature compensation circuit and two circuit of human body temperature compensating circuit.
The purpose of this utility model, feature and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
Description of drawings
Fig. 1 is the ambient temperature compensation circuit of the utility model temperature-compensation circuit.
Fig. 2 is the human body temperature compensating circuit of the utility model temperature-compensation circuit.
Embodiment
With reference to Fig. 1, Fig. 2, the layout of the utility model temperature-compensation circuit comprises ambient temperature compensation circuit and human body temperature compensating circuit.
As shown in Figure 1, the ambient temperature compensation circuit is the thermistor 4 that utilizes sensor 12 to carry, embodiment is: connect first divider resistance 2 from the 1.2V voltage stabilizing mouth 1 of single-chip microcomputer, the 2nd pin room temperature pin anode 3 that first divider resistance 2 connects sensor 12 again connects thermistor 4, insert the I/O mouth 8 of single-chip microcomputer simultaneously through RC filtering 1, the 4th pin room temperature pin negative terminal 5 of sensor 12 is received simulation ground 6, when around variation of ambient temperature the time, the resistance of the thermistor 4 of sensor 12 also can be along with ambient temperature changes, the magnitude of voltage that is sent to I/O mouth 8 also can change, be that instrument just measures different environment temperatures, program the inside is again according to the varying environment temperature that measures, and the reading of instrument is compensated.
As shown in Figure 2, connect second divider resistance 9 from the 1.2V voltage stabilizing mouth 1 of single-chip microcomputer, second divider resistance 9 connects a 3950100K thermistor 10 again to simulation ground 6, insert the I/O mouth 8 of single-chip microcomputer simultaneously through RC filtering 2 11, when the temperature of human body surface is subjected to temperature and influences, the resistance of 3950100K thermistor 10 also can be along with ambient temperature changes, and the magnitude of voltage that is sent to I/O mouth 8 also can change, and promptly instrument just measures different ambient temperatures and comes human body temperature is made corresponding compensation.The human body temperature compensating circuit is used to measure ambient temperature, and the reading of measuring according to the human body temperature compensating circuit is made corresponding compensation to human body temperature again.The environment temperature that the human body temperature compensating circuit is measured is the ambient temperature compensation circuit that is different among Fig. 1, can not be subjected to the target temperature influence, is used for specially doing compensation at human body.
Obviously, the foregoing description only supplies the usefulness of explanation the utility model, and is not to restriction of the present utility model.The variation that the those of ordinary skill in relevant technologies field is made in the corresponding techniques field according to the utility model should belong to protection category of the present utility model.
Claims (2)
1, temperature-compensation circuit, comprise ambient temperature compensation circuit and human body temperature compensating circuit, it is characterized in that: in the described ambient temperature compensation circuit, the 1.2V voltage stabilizing mouth of single-chip microcomputer connects first divider resistance, the 2nd pin room temperature pin anode that first divider resistance connects sensor again connects thermistor, insert the I/O mouth of single-chip microcomputer simultaneously through RC filtering one, the pin room temperature pin negative terminal of sensor is received simulation ground; In the described human body temperature compensating circuit, the 1.2V voltage stabilizing mouth of single-chip microcomputer connects second divider resistance, and second divider resistance connects one 3950 100K thermistors again to simulation ground, inserts the I/O mouth of single-chip microcomputer simultaneously through RC filtering two.
2, temperature-compensation circuit according to claim 1 is characterized in that: described thermistor is loaded in the sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201471666U CN201266119Y (en) | 2008-09-10 | 2008-09-10 | Temperature compensation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201471666U CN201266119Y (en) | 2008-09-10 | 2008-09-10 | Temperature compensation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266119Y true CN201266119Y (en) | 2009-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201471666U Expired - Lifetime CN201266119Y (en) | 2008-09-10 | 2008-09-10 | Temperature compensation circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN201266119Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075349A1 (en) * | 2012-11-15 | 2014-05-22 | 创天昱科技(深圳)有限公司 | Circuit for solving influence of temperature on output value of smell sensor |
| CN104490368A (en) * | 2014-12-01 | 2015-04-08 | 辛勤 | Method and device for measuring human body temperature |
| CN106092365A (en) * | 2016-06-16 | 2016-11-09 | 陈国平 | Method and the application thereof of the one side temperature measurement accuracy of ultra-thin thermometric card can be improved |
| JP2018513738A (en) * | 2015-04-10 | 2018-05-31 | アルブーゾフ, イワンARBOUZOV, Ivan | Multi-sensor modular subject observation and monitoring system |
| CN111366260A (en) * | 2020-04-26 | 2020-07-03 | 广东虹勤通讯技术有限公司 | Temperature monitoring circuit, system and method |
| CN114627832A (en) * | 2022-02-28 | 2022-06-14 | 长沙惠科光电有限公司 | Voltage compensation circuit and display device |
-
2008
- 2008-09-10 CN CNU2008201471666U patent/CN201266119Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075349A1 (en) * | 2012-11-15 | 2014-05-22 | 创天昱科技(深圳)有限公司 | Circuit for solving influence of temperature on output value of smell sensor |
| CN104490368A (en) * | 2014-12-01 | 2015-04-08 | 辛勤 | Method and device for measuring human body temperature |
| CN104490368B (en) * | 2014-12-01 | 2017-05-31 | 辛勤 | A kind of method and device of measurement of bldy temperature |
| JP2018513738A (en) * | 2015-04-10 | 2018-05-31 | アルブーゾフ, イワンARBOUZOV, Ivan | Multi-sensor modular subject observation and monitoring system |
| CN106092365A (en) * | 2016-06-16 | 2016-11-09 | 陈国平 | Method and the application thereof of the one side temperature measurement accuracy of ultra-thin thermometric card can be improved |
| CN111366260A (en) * | 2020-04-26 | 2020-07-03 | 广东虹勤通讯技术有限公司 | Temperature monitoring circuit, system and method |
| CN111366260B (en) * | 2020-04-26 | 2022-03-15 | 广东虹勤通讯技术有限公司 | Temperature monitoring circuit, system and method |
| CN114627832A (en) * | 2022-02-28 | 2022-06-14 | 长沙惠科光电有限公司 | Voltage compensation circuit and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN HUASHENGCHANG MACHINARY INDUSTRY CO.,LTD. Free format text: FORMER OWNER: YUAN JIANMIN Effective date: 20091023 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091023 Address after: Shenzhen Nanshan District City Xili white Wangsong White Road Industrial Zone No. 19 district Baiwang value, No. 21 building, zip code: 518000 Patentee after: Shenzhen Everbest Machinery Industry Co., Ltd. Address before: 6, Li River Industrial Zone, Shiyan Town, Shiyan City, Guangdong, Shenzhen 518034, China: Baoan District Patentee before: Yuan Jianmin |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Nanshan District, Shenzhen City, Guangdong Province Xili Baishundong Baiwangluo Park Road value of five industrial zones five District 19 # 21 # plant Patentee after: Shenzhen City Huasheng Technology Industry Limited by Share Ltd Address before: 518000 Nanshan District, Shenzhen City, Guangdong Province Xili Baishundong Baiwangluo Park Road value of five industrial zones five District 19 # 21 # plant Patentee before: Shenzhen Everbest Machinery Industry Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090701 |
|
| CX01 | Expiry of patent term |