• Title, Summary, Keyword: measurement device

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The measurement temperature and analysis used embedded system by internet explorer (인터넷 익스플로러를 통한 임베디드 시스템 기반의 온도 측정 및 분석)

  • 김희식;김영일;설대연;남철
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.1003-1006
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    • 2004
  • In this paper have developed a system for monitoring and processing the real time sensor data in remote site through network. For realizing this system, measurement equipment and protocol are used to transmit the measurement data to remote server and to process measurement data. In server part, the received data from remote site sensor is converted to text or graphic charts for user. The measurement device in sensor part receives the sensor data form sensor and store the received data to its internal memory for transmitting data to server part through Internet. Also the measurement device can receive data form server. The temperature sensor is connected to the measurement device located in laboratory and the measurement device measures temperature of laboratory which can be confirmed by user through Internet. We have developed a server programworking on the Linux to store measurement data from measurement device to server memory. The program is use for SNMP(Simple Network Management Protocol) to exchange data with measurement device. Also the program changes the measurement data into text and graphic charts for user display. The program is use apache PHP program for user display and inquiry. The real time temperature measurement system can be apply for many parts of industry and living.

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Automatic Measurement of Temperature in Real Time by Using an Internal and Data Processing System (인터넷을 이용한 원격 실시간 온도 계측 모니터 및 계측데이터 자동처리 시스템)

  • Kim, Hui-Sik;Kim, Yeong-Il;Seol, Dae-Yeon;Nam, Cheol;O, Heung-Il
    • Proceedings of the KIEE Conference
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    • pp.99-102
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    • 2003
  • In this paper, we have developed a system for monitoring and processing the real time sensor data in remote site through Internet. For realizing this system, measurement equipment and protocol are used to transmit the measurement data to remote server and to process measurement data. In server part, the received data from remote site sensor is converted to text or graphic charts for user. The measurement device in sensor part receives the sensor data form sensor and store the received data to its internal memory for transmitting data to server part through Internet. Also the measurement device can receive data form server. The temperature sensor is corrected to the measurement device located in laboratory and the measurement device measures temperature of laboratory which can be confirmed by user through Internet. We have developed a server program working on the Linux to store measurement data from measurement device to server memory. The program is use for SNMP(Simple Network Management Protocol) to exchange data with measurement device. Also the program changes the measurement data into text and graphic charts for user display. The program is use apache PHP program for user display and inquiry. The real time temperature measurement system can be applly for many parts of industry and living.

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A Measurement System for 3D Hand-Drawn Gesture with a PHANToMTM Device

  • Ko, Seong-Young;Bang, Won-Chul;Kim, Sang-Youn
    • Journal of Information Processing Systems
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    • v.6 no.3
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    • pp.347-358
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    • 2010
  • This paper presents a measurement system for 3D hand-drawn gesture motion. Many pen-type input devices with Inertial Measurement Units (IMU) have been developed to estimate 3D hand-drawn gesture using the measured acceleration and/or the angular velocity of the device. The crucial procedure in developing these devices is to measure and to analyze their motion or trajectory. In order to verify the trajectory estimated by an IMU-based input device, it is necessary to compare the estimated trajectory to the real trajectory. For measuring the real trajectory of the pen-type device, a PHANToMTM haptic device is utilized because it allows us to measure the 3D motion of the object in real-time. Even though the PHANToMTM measures the position of the hand gesture well, poor initialization may produce a large amount of error. Therefore, this paper proposes a calibration method which can minimize measurement errors.

Development of an Illumination Measurement Device for Color Distribution Based on a CIE 1931 XYZ Sensor

  • Son, Do-Ky;Cho, Eun-Byeol;Moon, In-Kyu;Park, You-Sang;Lee, Chung-Ghiu
    • Journal of the Optical Society of Korea
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    • v.15 no.1
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    • pp.44-51
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    • 2011
  • In this paper, an easy-to-use measurement device for illumination distribution is developed. The device consists of a sensor array module, a control module, and a PC interface. The sensor array module incorporates CIE 1931 color sensors and the ARM-based 96 MHz microcontroller in the control module for measurement and data processing. The sensor array module contains 64 color sensors arranged in a $16{\times}4$ array. The sensitivity of the sensor array module can be adjusted depending on the illumination level to be measured. The measurement data and control signals are exchanged via USB 2.0 standard. To demonstrate the performance of the device, the illumination distribution is measured for colors of red, green, and blue and is graphically shown. The device can be used for measurement of the illumination distribution, design and adjustment of LED illumination.

Complete Parameter Identification of Gough-Stewart platform with partial pose measurements using a new measurement device

  • Rauf, Abdul;Ryu, Je-Ha
    • 제어로봇시스템학회:학술대회논문집
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    • pp.825-830
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    • 2004
  • Kinematic calibration of Gough-Stewart platform using a new measurement device is presented in this paper. The device simultaneously measures components of position and orientation using commercially available gadgets. Additional kinematic parameters are defined to model the sources of inaccuracies for the proposed measurement device. Computer simulations reveal that all kinematic parameters of the Gough-Stewart platform and the additional kinematic parameters of the measurement device can be identified with the partial pose measurements of the device. Results also show that identification is robust for the initial errors and the noise in measurements. The device also facilitates the automation of easurement procedure.

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Reference-Frame-Independent Measurement-Device-Independent Quantum Key Distribution with Uncharacterized Qubits

  • Hwang, Won-Young
    • Journal of the Korean Physical Society
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    • v.73 no.7
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    • pp.861-865
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    • 2018
  • We propose a reference-frame-independent measurement-device-independent quantum key distribution with uncharacterized quantum bits. We show the security of the protocol. The protocol can also be useful for a channel that has a very low bit error rate but suffers a large, uncontrolled (but slow), unitary rotation.

Experimental Results on Kinematic Calibration of Parallel Manipulator using 6 DOF Measurement Device (6자유도 측정 장치를 이용한 병렬 기구의 캘리브레이션 실험 결과)

  • Rauf Abdul;Pervez Aslam;Kim Hyun-Ho;Ryu Je-Ha
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.197-203
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    • 2005
  • This paper presents kinematic calibration of parallel manipulators with partial pose measurements using a device that measures a rotation of the end-effector along with its position. The device contains an LVDT, a biaxial inclinometer, and a rotary sensor and facilitates automation of the measurement procedure. The device is designed in a modular fashion and links of different lengths can be used. The additional kinematic parameters required for the measurement device are discussed, kinematic relations are derived, and cost function is established to perform calibration with the proposed device. The study is performed for a six degree-of-freedom(DOF) fully parallel HexaSlide Mechanism(HSM). Experimental results show significant improvement in the accuracy of the HSM.

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Development of Direct Measurement Device for Alveolar Breath Carbon Monoxide

  • Jo, Wan-Kuen;Oh, Jee-Won
    • Journal of Korean Society for Atmospheric Environment
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    • v.18 no.E4
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    • pp.181-190
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    • 2002
  • A novel portable device for the direct measurement of alveolar breath carbon monoxide (CO) was developed. The major components of the device include a mouthpiece, non-rebreathing two-way valve, Teflon tube, and CO dosimeter. An alveolar CO measurement can be completed within 1.5 min when using the proposed device and measurement protocol. Measurements could be read to the nearest 0.1 ppm. Humidity did not influence the CO measurements taken by the CO dosimeter, plus there were no problems associated with the recovery and carryover of CO through the device. The criterion for significance in statistical analyses was p< 0.05. The average recovery was 103 and 99% for recovery and carryover experiments, respectively. Test results using the proposed alveolar CO measurement system reflected a good reproducibility. This reproducibility was also supported by the finding that the relative standard deviations (RSDs) of the data sets were less than 7% for the loss experiment and less than 8% for the carryover experiment. Consequently, it would appear that the proposed device can be effectively applied to measure CO levels found in breath, thereby overcoming several disadvantages associated with the conventional bag and adsorbent tube sampling methods.

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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    • v.1 no.5
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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.

Development of a Tensile Force Measurement Device of Long Duration (인장력 상시 측정장치 개발에 관한 연구)

  • Shin, Kyung Jae;Hwang, Yun Ha
    • Journal of Korean Society of Steel Construction
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    • v.15 no.4
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    • pp.435-445
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    • 2003
  • Tension member is one of the most important elements in tension structure. An economical and reliable measurement method of a member's tensile force has yet to be developed, however. Several conventional measurement methods have some disadvantages when used for long-term, on-site measurement. A new tension-force measurement device was proposed to resolve measuring problems. Its principle was to use the bending part of the device as an elastic spring. The lateral deformation of the bending part due to tensile force can be measured to monitor the tensile force. This device was inserted in the tension member like a turn-buckle. Lateral deformation may be measured in the field at any time for the purpose of maintaining structures. Finite element analysis was used to design the shape and parametric study. Six specimens were tested within the elastic range. The test result showed that the elastic behavior or the bending part was consistent with the analysis' results.