中国科学院机构知识库网格系统: 检索

Dynamic Measurement and Data Calibration for Aerial Mobile IoT 期刊论文 OAI收割
IEEE INTERNET OF THINGS JOURNAL, 2020, 卷号: 7, 期号: 6, 页码: 5210-5219
作者: Gu, Jingjing; Liu, Cheng; Zhuang, Yi; Du, Xiaojiang; Zhuang, Fuzhen

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收藏 | 浏览/下载：37/0 | 提交时间：2020/12/10

Sensors Atmospheric measurements Calibration Temperature measurement Pollution measurement Internet of Things Correlation Aerial Internet of Things (Aerial-IoT) data calibration dynamic measurement

采用双窗口红外探测器的道面温度遥测系统 期刊论文 OAI收割
红外与激光工程, 2020, 卷号: 49
作者: 程寅; 刘建国; 桂华侨; 陆亦怀; 魏秀丽

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收藏 | 浏览/下载：24/0 | 提交时间：2020/11/25

measurement of road surface temperature double window infrared detector internal stray radiation radiation calibration 道面温度测量双窗口红外探测器内部杂散辐射辐射定标

Temperature measurement used for 4000-m depth drilling and geothermal characteristics in Jiaodong Peninsula, China 期刊论文 OAI收割
ENVIRONMENTAL EARTH SCIENCES, 2017, 卷号: 76, 期号: 21
作者: Ma, Fengshan; Sun, Zhifu; Sun, Zongfeng; Wang, Xin'e; Lu, Rong

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收藏 | 浏览/下载：48/0 | 提交时间：2017/12/18

Jiaodong Peninsula Of China 4000 m Depth Drilling Temperature Measurement Terrestrial Heat Flow

Error analysis of the micro temperature control system (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China
Han Z.; Song K.

收藏 | 浏览/下载：49/0 | 提交时间：2013/03/25

In order to improve the measurement accuracy of optical detection instruments temperature control circuits for narrow band-pass filters are given and the error analysis is applied to temperature control circuits.The principle of a temperature measurement circuit is studied and the method of a driver circuit is described. A variety of influencing factors of temperature control accuracy are discussed. Moreover for these error factors improvement measures are given to reduce the nonlinear error. Finally circuit parameter error is quantified to propose a calculation method for margin of error in a temperature control system. (2013) Trans Tech Publications Switzerland.

Comparison of radiation temperature measurement precision between middlewave and longwave thermal-imaging systems (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者: Sun Z.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

A comparison study on temperature measurement precision between middlewave 3-5m and longwave 8-12m measuring thermal imaging systems has been conducted. The study was limited to systems working in indoor conditions and the target's temperature is in the range of 270K900K. First the Disturb Resisting Function (DRF) of infrared systems is deduced. On the base of DRF curve we find that the middlewave infrared system get the smaller influences under the same size disturb compared with the longwave system. A theory of the influence of target's physical characteristic and measurement conditions on the accuracy of temperature measurements has been developed. On the basis of the developed formulas an analysis of the influence of signal disturbances (because of incorrectly assumed emissivity limited transmittance of the atmosphere radiation reflected by the object and shift of optics radiation) on the accuracy of temperature measurement has been made. It has been found that the middlewave systems in typical temperature range offer generally better accuracy in temperature measurement than the longwave ones do. 2012 IEEE.

Real-Time Measurement of Detonation Transient Temperature 期刊论文 OAI收割
spectroscopy and spectral analysis, 2011, 卷号: 31, 期号: 11, 页码: 3060-3063
作者: Zheng Jin-kun; Bai Yong-lin; Wang Bo; Liu Bai-yu; Yang Wen-zheng

收藏 | 浏览/下载：31/0 | 提交时间：2012/06/29

Mechanics of explosion Detonation temperature FPGA High-speed linear CCD Multi-wavelength temperature measurement

Performance test of steel tube enclosed thermistors in air temperature measurements (EI CONFERENCE) 会议论文 OAI收割
3rd International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2011, January 6, 2011 - January 7, 2011, Shanghai, China
作者: Yang H.; Yan F.; Yan F.; Peng J.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

The performances of two steel tube enclosed precision thermistors are tested in a well controlled air environment to determine if the thermistors have enough accuracy for 0.01C levels of air temperature gradient measurement. Three Fluke's 5641 and three 5610 thermistors were tested for 24 hours in Fluke's 7008 calibration bath in the first step. In the second step the performances of these two thermistors in steady state and transient state air temperature environments were tested for 8 hours separately. The results illustrate that two of the 5641s were airproofed in a temperature well controlled tube when steel tube enclosed precision thermistors are used in air temperature measurement there are unstable departures from each other with a maximum 8.8 mC in constant air medium and 27 mC in temperature changing air medium. The transient-time errors are too large to show the true amounts of temperature changes for air temperature measurement. 2011 IEEE.

System design on a field emission with phosphor detection (EI CONFERENCE) 会议论文 OAI收割
2009 International Symposium on Liquid Crystal Science and Technology, August 2, 2009 - August 5, 2009, Kunming, China
作者: Li Y.; Sun T.; Li Y.; Li Y.; Li Y.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

It is well-known that the phosphor is widely used for the field emission display (FED) and its luminescent and temperature properties are very important for the effect of display. In this paper we propose a measurement scheme for the phosphor and design a test-equipment to test the luminescent and temperature properties of phosphor. Furthermore the equipment can also be used for the life-test of the phosphor because it can generate a great excitation power. Finally there are design principle structure and some data and result which we obtained in the experiment. These data will be very useful for the design of FED. (2010) Trans Tech Publications.

Research on the laboratory radiometric calibration of the thermal imager (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者: Wang J.; Liu Y.; Liu Y.; Liu Y.; Sun Q.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

The radiometric calibration of the thermal imager was investigated to build the relationship between the input radiance and the digital output to realize the temperature measurement. The radiometric calibration was implemented in the State Key Laboratory of Applied Optics. A standard black body source was served as radiation source. The response of the thermal imager to the input radiance was tested for different gains. The experimental results show that the average grey level of the output imaging is linear dependence of the input radiance. Because the radiance in the receiving wave range of the thermal imager is linear with the black body's temperature based on Planck's law of radiation the average grey level of the output image is also linear with the black body's temperature after fitting a curve to the experiment data points. Then the relationship of the response and the gain was studied when the black body's temperature kept constant. The preliminary analysis of calibration data shows that the response of the thermal imager is linear and the average grey value of the image is directly proportion to the gain. According to the experimental results the reference gains and the dynamic range of temperature measurement were obtained. Finally the uncertainty influencing the calibration results was analyzed the analysis shows the maximal uncertainty is 5.2% which can meet the calibration requirement less than 10%. 2010 Copyright SPIE - The International Society for Optical Engineering.

Infrared signature measurement of targets accounting for atmospheric attenuation (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者: Yang C.-Y.; Lu M.; Zhang J.-P.; Cao L.-H.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

Infrared radiation signature measurement of targets is one of important ways for target signature acquirement and target recognition. When measuring the infrared signature of a target in the atmosphere molecules and aerosol particles in the atmosphere would attenuate the infrared radiation from the target and at the same time the air path radiation would be added to the target radiation. Therefore in order to obtain the intrinsic infrared radiation of the target it is necessary to perform atmospheric correction in the process of target radiation inversion. A model for target radiation measurement and inversion was established and precision analysis on the model was given. A longwave infrared camera was used to perform infrared signature measurement experiment on an ISDC extended-area blackbody. Based on atmospheric parameters the atmospheric transmittance and the air path radiation between the blackbody target and the camera were calculated by using the MODTRAN software for use in atmospheric correction in the target radiation inversion process. The experimental results showed that radiation inversion precisions were about 7.3%9.3%. Additionally inversion precision will improve as target temperature rises. 2010 IEEE.