• 제목/요약/키워드: Infrared thermal imaging system

검색결과 109건 처리시간 0.025초

Temperature Measurement of Photovoltaic Modules Using Non-Contact Infrared System

  • Jovanovic, Ugljesa;Mancic, Dragan;Jovanovic, Igor;Petrusic, Zoran
    • Journal of Electrical Engineering and Technology
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    • 제12권2호
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    • pp.904-910
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    • 2017
  • This paper presents temperature measurement of solar photovoltaic modules using the custom-made system composed of an infrared temperature sensor and a microcontroller. The obtained measurement results are processed, displayed and stored on a PC using the custom-made virtual instrument. The proposed system overcomes some of the problems related to the contact sensor application, and at the same time offers accurate readings and better flexibility. The proposed system is especially suitable for applications where the cost is a limiting factor in the choice of measuring system. The conducted analysis and the obtained results have shown an excellent accuracy of the proposed system in comparison to a high quality thermal imaging camera used as the reference instrument.

체열진단을 통한 펄스자기장 자극기의 혈류개선효과 고찰 (Effect of Pulse Magnetic Field Stimulus on Blood Flow using Digital Infrared Thermal Imaging)

  • 이현숙
    • 한국자기학회지
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    • 제21권5호
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    • pp.180-184
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    • 2011
  • 자기장 자극시스템을 통하여 순간펄스 고자기장을 손바닥과 발바닥 그리고 무릎에 인가한 후 체열진단시스템을 통하여 모세혈관을 포함한 인체의 혈관 자극에 의한 혈류개선 효과를 연구하였다. 연령별, 성별 구분을 통하여 자극 후 체열진단을 통해 공통적으로 자극부위에 온도가 상승하는 결과를 얻었으며, 자기장 자극기 코일에서 발생하는 자체 발열량을 제거하기 위해 플라스틱 재질의 성형물로 신체와의 직접적인 접촉을 차단시켰으며 일정거리를 유지하여 실험하였다. 그 결과 비접촉을 통하여 순수하게 자기장의 펄스파형이 피부에 가까운 혈관을 자극하여 내부 전자기 에너지가 피부에 온도상승을 가져온 것으로 고찰된다.

적외선 LED 램프를 이용한 적외선 체열 영상 진단 (The Method of medical Infrared Thermographic imaging using an Infrared LED Lamps)

  • 송민종;유성미;소병문;김진사;최운식;박춘배;김태완
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2010년도 하계학술대회 논문집
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    • pp.282-282
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    • 2010
  • LED Device was designed of electronic circuits of electrical power part for used Pspice student version and used Infrared LED lamps of load part. LED was used Computerized Electronic Medical Infrared Thermographic Imaging System for body surface Investigation of variable Body thermal asymmetry. It was knowledge body thermal Asymmetry of body surface and quantity body surface of electromagnetic wave to inflow electrical power part.

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셔터렌즈에 의한 검출기 불균일 보정을 적용한 이중배율 적외선 카메라 설계 (Design of Two Zoom Infrared Camels using Noise Uniformity Correction by Shutter Lens)

  • 안규봉;김서현;정재철;조문신;김창우;김현숙
    • 한국광학회지
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    • 제18권2호
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    • pp.135-141
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    • 2007
  • 완전한 2차원 배열을 갖는 중적외선 대역의 $320\times240$ 검출기를 사용하는 3세대 열상 장비의 설계 및 제작은 이차원 배열 검출기 제작 기술의 발달과 영상 신호처리 기술의 진전으로 인해 최근 더욱 더 활발히 이루어지고 있다. 본 논문은 다양한 응용 분야에서 적외선 센서로 사용될 수 있도록 하기 위하여 소형 경량화 제작을 목표로 한 3세대 열상장비의 이중 배율 적외선 카메라의 설계와 Defocus용 셔터 렌즈에 의한 영상기반 불균일 보정 방식에 대해 다룬다.

호모그래피 변환을 이용한 가시광 및 적외선 열화상 영상 정합 (Visible Light and Infrared Thermal Image Registration Method Using Homography Transformation)

  • 이상협;박장식
    • 한국산업융합학회 논문집
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    • 제24권6_2호
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    • pp.707-713
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    • 2021
  • Symptoms of foot-and-mouth disease include fever and drooling a lot around the hoof, blisters in the mouth, poor appetite, blisters around the hoof, and blisters around the hoof. Research is underway on smart barns that remotely manage these symptoms through cameras. Visible light cameras can measure the condition of livestock such as blisters, but cannot measure body temperature. On the other hand, infrared thermal imaging cameras can measure body temperature, but it is difficult to measure the condition of livestock. In this paper, we propose an object detection system using deep learning-based livestock detection using visible and infrared thermal imaging composite camera modules for preemptive response

Investigation of an Infrared Temperature Measurement System for Thermal Safety Verification of Plasma Skin Treatment Devices

  • Choi, Jong-ryul;Kim, Wookeun;Kang, Bongkeun;Song, Tae-Ha;Baek, Hee Gyu;Han, Yeong Gil;Park, Jungmoon;Seo, Soowon
    • Current Optics and Photonics
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    • 제1권5호
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    • pp.500-504
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    • 2017
  • In this paper, we developed a temperature measurement system based on an infrared temperature imaging module for thermal safety verification of a plasma skin treatment device (PSTD). We tested a pilot product of the low-temperature PSTD using the system, and the temperature increase of each plasma torch was well-monitored in real-time. Additionally, through the approximation of the temperature increase of the plasma torches, a certain limitation of the plasma treatment time on skin was established with the International Electrotechnical Commission (IEC) guideline. We determined an appropriate plasma treatment time ($T_{Safe}$ < 24 minutes) using the configured temperature measurement system. We believe that the temperature measurement system has a potential to be employed for testing thermal safety and suitability of various medical devices and industrial instruments.

중앙형 추간판탈출증의 진단에서 체열촬영의 의의 (A Study on the Infrared Thermographic Imaging in Diagnosis of the Central Type of Herniated Disc)

  • 송봉근;이종덕;박용현;송운용;김중길
    • Journal of Acupuncture Research
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    • 제15권2호
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    • pp.301-310
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    • 1998
  • Infrared thermographic imaging visualizes noninvasively various abnormal condition by detecting the skin temperature. As the imaging represents the objective condition by the changes in blood flow under the control of autonomic nervous system, it is used to diagnosis and monitor the lumboscral radiculopathy. And asymmetry is important in the diagnosis of disc herniation. The most common type of disc herniation occurs psoterolaterally. This frequently causes nerve root compression leading to a radiculopathy in the distribution of the involved nerve root, most of which also provoke the asymmetric changes in thermography. Central disc herniation, which accounts for 5% to 35% of disc herniation, is typically associated with low back pain. But radiculopathy is usually abscent unless central disc heriniaton is large enough to cause compression of the cauda equina. To evalute the diagnostic value of the thermographic imaging in the diagnosis of central disc herniation, the imaging of 15 normal subjects and 48 patients with central disc herniation documented by CT scan were analyzed. The patients had either bilateral radiculophathy or no radiculopathy. The imaging of patient group with non rediculopathy did not show any significant thermal difference to control. While bilateral radiculopathy group reveled hypothermic pattern compared twith control. Thermal difference between left and right side did not present any significance in non radiculopathy group but hypothermia in bilateral radiculopathy group. Large herniation group demonstrated hyperthemic pattern while the others showed no significant change. Cranial caudal thermal difference did not show any difference between experiment groups. These results shows that infrared thermographic imaging can be used central disc herniation with bilateral radiculopathy, while it seems to little useful on the diagnosis of non radiculopathic disc herniation.

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적외선 열화상을 활용한 리튬 이온 ESS의 방열설계 성능평가에 관한 연구 (A Performance Evaluation of a Heat Dissipation Design for a Lithium-Ion Energy Storage System Using Infrared Thermal Imaging)

  • 김은지;이경일;김재열
    • 한국기계가공학회지
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    • 제19권5호
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    • pp.105-110
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    • 2020
  • The global battery market is rapidly growing due to the development of vehicles(EV) and wireless electronic products. In particular logistics robots, which hielp to produce EVs, have attracted much interest in research in Korea Because logistics sites and factories operate continuously for 24 hours, the technology that can dramatically increase the operation time of the logistics equipment is rapidly developing, and various high-level technologies are required for the batteries used in. for example, logistics robots. These required technologies include those that enable rapid battery charging as well wireless charging to charge batteries while moving. The development of these technologies, however, result in increasing explosions and topical accidents involving rapid charging batteries These accidents due to the thermal shock caused by the heat generated during the charging of the battery cell. In this study, a performance evaluation of a heat dissipation design using infrared thermal imaging was performed on an energy storage systrm(Ess) applied with an internal heat conduction cooling method using a heating plate.

Digital Infrared Thermal Imaging of Crape Myrtle Leaves Infested with Sooty Mold

  • Kim, Jiyeon;Kweon, Si-Gyun;Park, Junhyung;Lee, Harim;Kim, Ki Woo
    • The Plant Pathology Journal
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    • 제32권6호
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    • pp.563-569
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    • 2016
  • The spatial patterns for temperature distribution on crape myrtle leaves infested with sooty mold were investigated using a digital infrared thermal imaging camera. The mean temperatures of the control and sooty regions were $26.98^{\circ}C$ and $28.44^{\circ}C$, respectively. In the thermal images, the sooty regions appeared as distinct spots, indicating that the temperatures in these areas were higher than those in the control regions on the same leaves. This suggests that the sooty regions became warmer than their control regions on the adaxial leaf surface. Neither epidermal penetration nor cell wall dissolution by the fungus was observed on the adaxial leaf surface. It is likely that the high temperature of black leaves have an increased cooling load. To our knowledge, this is the first report on elevated temperatures in sooty regions, and the results show spatial heterogeneity in temperature distribution across the leaf surface.

열화상카메라를 이용한 산불 화재 대응시스템 연구 (Forest Fire Response System Using Thermal Imaging Camera)

  • 윤원섭;김연규;김승준
    • 한국산업융합학회 논문집
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    • 제24권6_2호
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    • pp.927-935
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    • 2021
  • This study conducted a study to improve the problems of the existing fire sensor system. In the case of the existing system, it took more than 3 minutes to detect a fire even at a short distance, making it difficult to extinguish the initial fire. In order to improve these problems, in this study, a fire detection system using an infrared thermal imaging camera was studied. The infrared image-based fire detection system is relatively wide and can detect fire over a long distance, so it has the advantage of being applicable to many fire detection systems. As a result of conducting a field test using the fire detection system, a fire that occurred about 2 km ahead was detected within about 10 seconds. Since the fire detection function of this system can detect within 10 seconds from a distance of about 2 km, it was applicable to forest fires that occur frequently in spring and autumn.