CN201775622U - Non-contact infrared temperature measuring probe for measuring temperature of human body - Google Patents
Non-contact infrared temperature measuring probe for measuring temperature of human body Download PDFInfo
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- CN201775622U CN201775622U CN2010202903452U CN201020290345U CN201775622U CN 201775622 U CN201775622 U CN 201775622U CN 2010202903452 U CN2010202903452 U CN 2010202903452U CN 201020290345 U CN201020290345 U CN 201020290345U CN 201775622 U CN201775622 U CN 201775622U
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- infrared temperature
- human body
- signal processing
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Abstract
The utility model relates to a temperature measuring probe, in particular to a non-contact infrared temperature measuring probe for measuring the temperature of a human body. The utility model is characterized in that a Fresnel lens, a thermopile infrared temperature sensor and a signal amplification circuit board are sequentially arranged in a lens barrel; an aluminum radiating and shielding piece is arranged behind the lens barrel, aluminum foil is coated on the outer surface of the lens barrel, a black coarse fence structure which can eliminate parasitic light is arranged on the inner surface of the lens barrel, and signal light which enters the lens barrel in parallel is focused on the thermopile infrared temperature sensor after passing through the Fresnel lens. In the utility model, the outer surface of the lens barrel is coated with the aluminum foil, the inner surface of the lens barrel is black and coarse and comprises the fence structure for eliminating the parasitic light, thereby greatly eliminating the interfere of the parasitic light; and the signal light is focused on the thermopile infrared temperature sensor by adopting the Fresnel lens, thereby increasing measurement signal-to-noise ratio and distance coefficient ratio. Because the utility model adopts autozero operation and amplification and 24-bit AD circuit design, the measurement accuracy and the resolving capability of the temperature measuring probe are increased.
Description
Technical field
This utility model relates to a kind of temperature probe, is specially a kind of infrared temperature probe of non-contact measurement human body temperature.
Background technology
Body temperature is an important indicator of Human Physiology environment, and abnormal body temperature explanation Human Physiology environment occurs unusual, and sick possibility is arranged, and mercury clinical thermometer medically commonly used is measured human body temperature, and this measuring method is accurate, but speed is slow, is contact type measurement.Infectious disease takes place frequently in recent years, as SARS, bird flu, swine flu etc., brings fear to society.Effectively the infection prevention disease's spread is the top priority that guarantees social group's safety, and the disease patient often is accompanied by fervescence, so the rapid, accurate, non-contact measurement body temperature becomes the key of effective infection prevention disease's spread.Infrared temperature-test technology provides convenience for this reason.
The probe that is used for the noncontact infrared measurement of temperature at present mainly contains industrial and medical-type by the application branch, and industrial infrared temperature probe temperature-measuring range is wide, but precision not high (being generally ± 1 degree) is not suitable for human body temperature and measures.Though the industrial relatively height of medical-type Non-contact Infrared Temperature Measurement probe precision, but also come with some shortcomings, low (D: S is detection range and detection area diameter ratio than D: S as distance coefficient, this coefficient is big more, it is far away more to survey coverage, thermometric is accurate more), when surpassing certain distance, can't accurately measure human body temperature; Be subjected to extraneous interference of stray light serious, signal to noise ratio is low etc.
The utility model content
At problems of the prior art, the purpose of this utility model is to provide a kind of technical scheme of infrared temperature probe of non-contact measurement human body temperature.
The infrared temperature probe of described a kind of non-contact measurement human body temperature, it is characterized in that setting gradually in the lens barrel Fresnel Lenses, thermoelectric pile infrared temperature sensor and signal processing circuit plate, the lens barrel back also is provided with aluminum heat radiation shielding part, lens barrel outer surface parcel aluminium foil, inner surface is provided with the coarse fence structure that can eliminate veiling glare of black, focuses on the thermoelectric pile infrared temperature sensor after the parallel flashlight that enters lens barrel sees through Fresnel Lenses.
The infrared temperature probe of described a kind of non-contact measurement human body temperature, it is characterized in that the signal processing circuit on the described signal processing circuit plate adopts AD8552 from steady zero amplifier, signal processing adopts the C8051F350 single-chip microcomputer of integrated 24 AD, and signal processing circuit is provided with power supply and data communication interface.
The infrared temperature probe of described a kind of non-contact measurement human body temperature is characterized in that described data communication interface adopts SMBus bidirectional linked list bus.
The infrared temperature probe of above-mentioned a kind of non-contact measurement human body temperature, adopted lens barrel outer surface parcel aluminium foil, inner surface black is coarse, comprise the fence structure of eliminating veiling glare, eliminated the interference of veiling glare greatly, adopt the Fei Nier lens that flashlight is focused on the thermoelectric pile infrared temperature sensor, improved the signal to noise ratio and distance coefficient ratio measured; Owing to this utility model adopts from steady zero amplifier, 24 AD circuit design have improved the accuracy of measurement and the resolution of popping one's head in.
Figure of description
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with Figure of description this utility model is described further:
A kind of infrared temperature probe of non-contact measurement human body temperature, set gradually Fresnel Lenses 3 in the lens barrel 1, thermoelectric pile infrared temperature sensor 4 and signal processing circuit plate 5, lens barrel 1 bottom also is provided with aluminum heat radiation shielding part 6, Fresnel Lenses 3 is installed in the lens barrel 1, focus on the thermoelectric pile infrared temperature sensor 4 after the parallel flashlight that enters lens barrel 1 can being seen through Fresnel Lenses 3, lens barrel 1 outer surface parcel aluminium foil, inner surface is provided with the coarse fence structure 2 that can eliminate veiling glare of black, aluminum heat radiation shielding part 6 provides heat radiation and shielding for thermoelectric pile infrared temperature sensor 4, for signal processing circuit plate 5 provides shielding, reduce the interference of extraneous veiling glare, luxuriant and rich with fragrance Neil lens 3, thermoelectric pile infrared temperature sensor 4, signal processing circuit plate 5 is installed in the lens barrel 1 with aluminum heat radiation shielding, constitutes an integral body.Signal processing circuit on the signal processing circuit plate 5 adopts AD8552 from steady zero amplifier, signal processing adopts the C8051F350 single-chip microcomputer of integrated 24 AD, signal processing circuit is provided with power supply and data communication interface, and data communication interface adopts SMBus bidirectional linked list bus.
As shown in Figure 1, the light that the intense light source (as the sun) outside visual field is sent enters probe, and direct irradiation and is reflexed on the detector by inwall on inwall, Here it is veiling glare, and it can reduce the signal to noise ratio of temperature sensor greatly, and signal might be flooded.In order to improve signal to noise ratio, eliminate interference of stray light, this utility model adopts at lens barrel 1 inwall design needle pattern fence structure 2, by rational arrangement, the veiling glare that is radiated at inwall is reflected lens barrel, makes pick off 4 not receive veiling glare.
The infra-red radiation that comes from target object (people's body surface) can proximately be seen directional light as, enter lens barrel 1 after, behind Fei Nier lens 3, focus on the thermoelectric pile infrared temperature sensor 4, be transformed into the signal of telecommunication.
35 millimeters of lens barrel 1 length, 22 millimeters of external diameters, 16 millimeters of internal diameters, 20 millimeters of Fresnel Lenses 3 diameters, 20 millimeters of focal lengths, thermoelectric pile infrared temperature sensor 4 models are: TPS333,0.7 * 0.7 millimeter of effective photosensitive receiving plane, long 65 millimeters of aluminum hull, 22 millimeters of external diameters.
The distance coefficient of this thermoelectric pile infrared temperature sensor 4 is than D: S reaches 200: 7, and temperature measurement error meets national standard less than ± 0.3 ℃.
Claims (3)
1. the infrared temperature probe of a non-contact measurement human body temperature, it is characterized in that setting gradually in the lens barrel (1) Fresnel Lenses (3), thermoelectric pile infrared temperature sensor (4) and signal processing circuit plate (5), lens barrel (1) back also is provided with aluminum heat radiation shielding part (6), lens barrel (1) outer surface parcel aluminium foil, inner surface is provided with the coarse fence structure (2) that can eliminate veiling glare of black, focuses on the thermoelectric pile infrared temperature sensor (4) after the parallel flashlight that enters lens barrel (1) sees through Fresnel Lenses (3).
2. the infrared temperature probe of a kind of non-contact measurement human body temperature according to claim 1, it is characterized in that the signal processing circuit on the described signal processing circuit plate (5) adopts AD8552 from steady zero amplifier, signal processing adopts the C8051F350 single-chip microcomputer of integrated 24 AD, and signal processing circuit is provided with power supply and data communication interface.
3. the infrared temperature probe of a kind of non-contact measurement human body temperature according to claim 2 is characterized in that described data communication interface adopts SMBus bidirectional linked list bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202903452U CN201775622U (en) | 2010-08-12 | 2010-08-12 | Non-contact infrared temperature measuring probe for measuring temperature of human body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202903452U CN201775622U (en) | 2010-08-12 | 2010-08-12 | Non-contact infrared temperature measuring probe for measuring temperature of human body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201775622U true CN201775622U (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202903452U Expired - Fee Related CN201775622U (en) | 2010-08-12 | 2010-08-12 | Non-contact infrared temperature measuring probe for measuring temperature of human body |
Country Status (1)
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| CN (1) | CN201775622U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017080272A1 (en) * | 2015-11-13 | 2017-05-18 | 深圳通感微电子有限公司 | Self-focusing lens thermopile sensor and assembly process thereof |
| CN107773221A (en) * | 2017-11-06 | 2018-03-09 | 上海道生医疗科技有限公司 | Hand-held temp of acupoint detector |
| CN110864816A (en) * | 2019-12-05 | 2020-03-06 | 国网河南省电力公司焦作供电公司 | Multispectral high-voltage live equipment parameter gathers infrared radiation thermometer for appearance |
| CN111442848A (en) * | 2020-04-10 | 2020-07-24 | 江苏日颖慧眼智能设备有限公司 | Infrared sensor assembly |
| CN111481179A (en) * | 2020-05-21 | 2020-08-04 | 昆山热映光电有限公司 | Distance type ear thermometer forehead temperature conversion head |
| CN111879408A (en) * | 2020-06-18 | 2020-11-03 | 武汉高芯科技有限公司 | Light blocking ring with stray light inhibiting function, cold screen and refrigeration type infrared detector |
| CN112763070A (en) * | 2020-11-30 | 2021-05-07 | 江苏鱼跃医疗设备股份有限公司 | Temperature measuring probe, non-contact infrared thermometer and temperature compensation method |
-
2010
- 2010-08-12 CN CN2010202903452U patent/CN201775622U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017080272A1 (en) * | 2015-11-13 | 2017-05-18 | 深圳通感微电子有限公司 | Self-focusing lens thermopile sensor and assembly process thereof |
| CN107773221A (en) * | 2017-11-06 | 2018-03-09 | 上海道生医疗科技有限公司 | Hand-held temp of acupoint detector |
| CN107773221B (en) * | 2017-11-06 | 2024-02-06 | 上海道生医疗科技有限公司 | Hand-held acupoint temperature detector |
| CN110864816A (en) * | 2019-12-05 | 2020-03-06 | 国网河南省电力公司焦作供电公司 | Multispectral high-voltage live equipment parameter gathers infrared radiation thermometer for appearance |
| CN111442848A (en) * | 2020-04-10 | 2020-07-24 | 江苏日颖慧眼智能设备有限公司 | Infrared sensor assembly |
| CN111481179A (en) * | 2020-05-21 | 2020-08-04 | 昆山热映光电有限公司 | Distance type ear thermometer forehead temperature conversion head |
| CN111879408A (en) * | 2020-06-18 | 2020-11-03 | 武汉高芯科技有限公司 | Light blocking ring with stray light inhibiting function, cold screen and refrigeration type infrared detector |
| CN112763070A (en) * | 2020-11-30 | 2021-05-07 | 江苏鱼跃医疗设备股份有限公司 | Temperature measuring probe, non-contact infrared thermometer and temperature compensation method |
| CN112763070B (en) * | 2020-11-30 | 2022-06-17 | 江苏鱼跃医疗设备股份有限公司 | Temperature measuring probe, non-contact infrared thermometer and temperature compensation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20140812 |
|
| EXPY | Termination of patent right or utility model |