• Title/Summary/Keyword: Infrared thermometer

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Developing Affective Computing Game with Player's Bio-Signal (사용자의 생체 신호를 이용한 감성 컴퓨팅 게임 개발)

  • Lee, Chung-Hyeon;Kim, Dong-Gyun;Kim, Hye-Young;Kang, Shin-Jin
    • Journal of Korea Game Society
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    • v.16 no.6
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    • pp.91-100
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    • 2016
  • In this research, Affective computing game has been developed which reacts with a player's bio-signals. A modified computer mouse will be used to collect bio-signals by GSR, FSR, and infrared thermometer. This modified computer mouse collect human bio-signals in non-intrusive way. The collected data is complementary reflected in 3 level of tension of a player. The player's tension affects on the game and the reaction for NPC will be followed. Then this leads to plot changes individually. To let diverse NPC reaction and interactive story telling, Live 2d and Inkle Script have been used. This research can be alternative method on the game development using Affective computing.

Analysis of infrared thermal image for melting processes of Co-Cr-Mo based alloy using high frequency induction casting machine (치과용 고주파 주조기를 이용한 Co-Cr-Mo계 합금 용해과정의 적외선 열화상 분석)

  • Kang, Hoo-Won;Park, Young-Sik;Hwang, In;Lee, Chang-Ho;Heo, Yong;Won, Yong-Gwan
    • Journal of Technologic Dentistry
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    • v.36 no.3
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    • pp.149-158
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    • 2014
  • Purpose: Dental casting Co-Cr-Mo based alloys of five kinds of ingot type and two kinds of shot type were analyzed the melting processes with heating time of high frequency induction centrifugal casting machine using infrared thermal image analyzer. Methods: When Co-Cr-Mo based alloys were put about 30g/charge in the ceramic crucible of high frequency induction centrifugal casting machine and heat, Infrared thermal image analyzer and IR thermometer indicated these alloys in the crucible were set and operated. Results: The melting temperatures of alloys measuring infrared thermal image analyzer were deviated ${\pm}10^{\circ}C$ compared to those of manufacturing company. On the other hand, the melting time of alloys were differently appeared with the shape of alloys(ingot and shot type). Conclusion: The melting temperatures of dental Co-Cr-Mo based alloys were measured the degree of $1,360{\sim}1410^{\circ}C$ and the heating time with the alloys of ingot and shot type were deviated ${\pm}10sec$.

U-Healthcare Patch Type Wireless Body Temperature Monitoring System (유헬스케어 패치형 무선 체온 모니터링 시스템 구현)

  • Park, Young-Sang;Kwon, Oeon;Cho, Hyun-Sung;Son, Jaebum
    • Journal of Biomedical Engineering Research
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    • v.41 no.1
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    • pp.55-61
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    • 2020
  • Recently, there have been many research on fever management using u-healthcare technology. Especially, fever of infants requires continuous monitoring of body temperature by parents. For infants between 4 weeks and under 5 years old, it is recommended to use an electronic thermometer or chemical thermometer in the axilla, or to use an infrared thermometer. However, in order to overcome the reality of not being able to waste significant time on continuous monitoring, there have been demands of patch type thermometers with the internet of things (IoT) and wireless communication technologies. Existing IoT thermometers are difficult to attach to infants' body because they do not take into account its size, and their interoperability is not guaranteed because they do not comply with standards in communication. Therefore, in this study, a patch-type thermometer with a diameter of 20 mm and a weight of 2.9 g was developed to manage the fever of infants, while it communicates wirelessly with Bluetooth Low Energy (BLE) communication protocol and complies with IEEE 11073 PHD(Personal Health Device) at the same time. We verified its performance under the requirements of thermometers regulated by the Korean Ministry of Food and Drug Safety.

EXPERIMENTAL STUDY ON MEASUREMENT OF EMISSIVITY FOR ANALYSIS OF SNU-RCCS

  • CHO YUN-JE;KIM MOON OH;PARK GOON-CHERL
    • Nuclear Engineering and Technology
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    • v.38 no.1
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    • pp.99-108
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    • 2006
  • SNU-RCCS is a water pool type RCCS (Reactor Cavity Cooling System) developed for VHTR (Very High Temperature Reactor) application by SNU (Seoul National University). Since radiation heat transfer is the major process of passive heat removal in a RCCS, it is important to determine the precise emissivity of the reactor vessel. Review studies have used a constant emissivity in the passive heat removal analysis, even though the emissivity depends on many factors such as temperature, surface roughness, oxidation level, wavelength, direction, atmosphere conditions, etc. Therefore, information on the emissivity of a given material in a real RCCS is essential in order to properly analyze the radiation heat transfer in a VHTR. The objectives of this study are to develop a method for compensation of the factors affecting the emissivity measurement using an infrared thermometer and to estimate the true emissivity from the measured emissivity via the developed method, especially in the SNU-RCCS environment. From this viewpoint, we investigated factors such as the attenuation effect of the window, filling gas, and the effect of background radiation on the emissivity measurements. The emissivity of the vessel surface of the SNU-RCCS facility was then measured using a sight tube. The background radiation was subsequently removed from the measured emissivity by solving a simultaneous equation. Finally, the calculated emissivity was compared with the measured emissivity in a separate emissivity measurement device, yielding good agreement with the emissivity increase with vessel temperature in a range of 0.82 to 0.88.

The Development of Acupuncture- Moxibustion Device for 4 points around GV20(Baihui) (백회와 사신총 혈위에 적합한 침구 소자의 개발)

  • Jo, Bongkwan
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.19 no.2
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    • pp.101-108
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    • 2015
  • Objectives This paper focused on developing the acupuncture-moxibustion device for head. Disadvantages of the existing devices for head moxibustion are its hume and inconvenience in operating because of the hair. Methods The proposed acupuncture-moxibustion device for GV20(Baihui) is 10mm long as needle body and 6mm long as needle root whose feature are 1~2 turns spiral coil. The spiral coil contains the moxa in order not to drop the moxa while operating Results The direct temperature on the burning moxa were measured by TK-305 infrared thermometer. But the direct temperature on the needle of acupuncture-moxibustion device were not able to measure by TK-305 infrared thermometer. By definition equation, the indirect temperatures on the needle of acupuncture-moxibustion device were able to be calculated. Conclusion A very safe, small and cheap acupuncture-moxibustion device for GV20(Baihui) of head is proposed. It will be useful to generate the heat shock protein and to operate in preventing and curing the Alzheimer's disease.

Reliability and Accuracy of Infrared Temperature: A Systematic Review (적외선 체온의 진단 정확도 평가 연구: 체계적 문헌고찰)

  • Park, Seong-Hi
    • Korean Journal of Adult Nursing
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    • v.26 no.6
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    • pp.668-680
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    • 2014
  • Purpose: The aim of this study was to investigate the accuracy of infrared temperature measurements compared to axillary temperature in order to detect fever in patients. Methods: Studies published between 1946 and 2012 from periodicals indexed in Ovid Medline, Embase, CINAHL, Cochrane, KoreaMed, NDSL, KERIS and other databases were selected using the following key words: "infrared thermometer". QUADAS-II was utilized to assess the internal validity of the diagnostic studies. Selected studies were analyzed through a meta-analysis using MetaDisc 1.4. Results: Twenty-one diagnostic studies with high methodological quality were included representing 3,623 subjects in total. Results of the meta-analysis showed that the pooled sensitivity, specificity, and area under the curve (AUC) of infrared tympanic thermometers were 0.73 (95% CI 0.70~0.75), 0.92 (95% CI 0.91~0.92), and 0.90, respectively. For axillary temperature readings, the pooled sensitivity was 0.67 (95% CI 0.62~0.73), the pooled specificity was 0.87 (95% CI 0.85~0.90), and the AUC was 0.80. Conclusion: Infrared tympanic temperature can predict axillary temperature in normothermic and in febrile patients with an acceptable level of diagnostic accuracy. However, further research is necessary to substantiate this finding in patients with hyperthermia.

Estimating evapotranspiration using leaf temperatured (엽온도 측정을 통한 증발산량 산정(관개배수 \circled1))

  • 이훈선;이남호
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2000.10a
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    • pp.151-156
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    • 2000
  • This study was to evaluate the effect of leaf temperature on daily evapotranspiration of crop. A transpiring crop will be cooled by the vaporization of water to a temperature below that of the surrounding air. Leaf temperature was measured a infrared thermometer. Crop evapotranspiration was measured by the method of lysimeter. A statistical model for estimating evapotranspiration was developed and tested. It was showed that the model was applicable.

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Possibility and Accuracy of Extracting Room Temperature Information from Mid-Infrared Sensor Satellite Images (중적외선 센서 위성 영상의 상온 온도 정보 추출 가능성 및 정확도)

  • Choi, SeokWeon;Seo, DooChun;Lee, DongHan
    • Journal of Space Technology and Applications
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    • v.1 no.3
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    • pp.356-363
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    • 2021
  • It was common knowledge in textbooks that images acquired using mid-infrared ray were not suitable for measuring temperature near room temperature. But a recent satellite image using a mid-infrared sensor show the possibility that the result measured using the mid-infrared sensor can also measure the temperature near room temperature. In this paper, the possibility and accuracy of extraction room temperature information from satellite images with mid-infrared sensors are reviewed. The mid-infrared satellite image reviewed in this paper showed the temperature of room temperature well, and regarding the reliability as an absolute value of the measured temperature, the effect of the heat transfer amount due to the direct reflection of sunlight on the surface and the effect of the infrared absorption amount absorbed in the atmosphere can be seen as a relatively small or constant value. However, the problem of uncertainty in the radiation coefficient due to physical properties, which is the limit of the non-contact thermometer, remained a problem to be solved.

Thermal environment analysis of greenhouse using Thermo-tracer (Thermo-tracer를 이용한 온실의 열환경 분석)

  • 이석건;이종원;이현우;김란숙
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 1998.10a
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    • pp.230-236
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    • 1998
  • Thermal environment of greenhouse was investigated by thermo-tracer in this study. The Thermo-tracer is a high-sensitivity infrared thermometer of non-contact type. The infrared energy emitted from the measured object is converted into an electrical signal by the detector(HgCdTe) and display as a color or black & white thermal image by way of optical scanning, The experiment was conducted for Venlo-type greenhouse with pad & fan system. The temperature difference between measured by Thermo-trace and measured by HOBO sensor is maximum 0.8$^{\circ}C$. Thermo-trace is possible to use for the thermal environment analysis and diagnosis of a cooling and heating system of greenhouse.

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Development of Deep-Heating Stimulation System for Substituting the Heat Effect of Moxibustion (뜸의 열적효과를 구현하기 위한 심부 열 자극 시스템 개발)

  • Cha, Ji-Young;Myoung, Hyoun-Seok;Cho, Sung-Pil;Lee, Kyoung-Joung
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.46 no.6
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    • pp.50-57
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    • 2009
  • In this paper, a deep-heating stimulation system and protocol were designed to substitute the heat effect of moxibustion. Moxibustion is used to increase immunity and cure disease. But, it is difficult to control power of heat stimulation. A designed deep-heating stimulation system using Radio-Frequency(RF) is easy to control power of heat stimulation. Also, the stimulation protocol for substitution of the heat effect of moxibustion is proposed. Core temperature was applied to infrared camera, thermometer, and infrared sensor, and then was compared with that of moxibustion. The proposed system showed that it is more effective than moxibustion in transferring heat effect in such a deep part. Also, it shows the possibility of usefulness of deep-heating stimulation system and heat stimulation protocol.