Epub 2019 Nov 14. Abstract. Opt. Note the Boolean sign must be in upper-case. 55(30) 8419-8425 (2016), Zhongming Yang, Jinyu Du, Chao Tian, Jiantai Dou, Qun Yuan, and Zhishan Gao All Rights Reserved, Only if other resources available (images, video, datasets), • Use these formats for best results: Smith or J Smith, Journal of Optical Communications and Networking, Journal of the Optical Society of America A, Journal of the Optical Society of America B, Journal of Display Technology (2005-2016), Journal of the Optical Society of Korea (1997-2016), Journal of Optical Networking (2002-2009), Journal of the Optical Society of America (1917-1983), Conference on Lasers and Electro-Optics (CLEO), High Intensity Lasers and High Field Phenomena, Asia Communications and Photonics Conference, Absolute measurement of optical flat surface shape based on the conjugate differential method, Method for absolute flatness measurement of optical surfaces, Generalized shift–rotation absolute measurement method for optical surface shapes with polygonal apertures based on migration recognition by Radon transform, Four-step shear method for the absolute measurement of a flat surface based on phase measuring deflectometry, Generalized shift-rotation absolute measurement method for high-numerical-aperture spherical surfaces with global optimized wavefront reconstruction algorithm. Opt. Introduction. 3. 123 Int J Thermophys (2011) 32:1707–1718 1713 Fig. You do not have subscription access to this journal. These instruments are constructed with the help of absolute instruments. We present an efficient absolute measurement method based on Zernike polynomial fitting algorithms. méthode absolue de mesure, f … 4. Opt. MAPE is remarkably similar to MPE with one big exception. Definition of absolute measurement in the Definitions.net dictionary. Separate search groups with parentheses and Booleans. An absolute measurement method is considered non-comparative, which is accepted as the highest accuracy possible. Information and translations of absolute measurement in the most comprehensive dictionary definitions resource on the web. We present an efficient absolute measurement method based on Zernike polynomial fitting algorithms. Express 25(21) 26133-26147 (2017). Absolute measurement principle. In this paper, a generalized shift-rotation absolute measurement method is proposed to measure the absolute surface shape of high-numerical-aperture spherical surfaces.  |  Absolute gravimetry. osti.gov journal article: absolute method of measurement of thermal neutron flux E.g. There are two methods for performing dimensional measurements: direct measurement and indirect measurement. Cited by links are available to subscribers only. The rotation angles and translation distances of the test surface, measured three times, are … A rapid measurement method for structured surface in white light interferometry. Absolute measurement is one of the most effective methods to improve the testing accuracy in interferometry. Citation lists with outbound citation links are available to subscribers only. Traditional large aperture optical flat measurement methods are mainly relatively interferometric... 2. Absolute measurement is one of the most effective methods to improve the testing accuracy in interferometry. NIH Absolute Method: Also called fundamental method & is based on the measurement of the base quantities used to define a particular quantity. 4Photograph of a PTB trap detector HHS Meaning of absolute measurement.  |  Absolute pressure measurement is the conventional method for measuring pressure in a sealed system, for instance when venting a system with a vacuum pump or … In general, the guarded-hot-plate (GHP) as design for an absolute thermal conductivity measurement based on steady-state heat-flow is very well understood. Appl. Example: (diode OR solid-state) AND laser [search contains "diode" or "solid-state" and laser], Example: (photons AND downconversion) - pump [search contains both "photons" and "downconversion" but not "pump"]. Asterisk ( * ) -- Example: "elect*" retrieves documents containing "electron," "electronic," and "electricity", Question mark (?) A generalized shift–rotation absolute measurement method for optical surface shapes with polygonal apertures based on migration recognition by Radon transform is proposed. We further carried out simulation analysis to scientifically evaluate the test accuracy of the proposed method. Most of them attempted to measure QE of dilute solution of QD [10–12]. The comparative method uses a single or in some cases multiple calibration reference materials to cover a range of thermal conductivity. Smith, F Philosophical Transactions of the Royal Society of London. With our proposed method, the profiles of both the test surface and the reference surface can be calculated simultaneously. The absolute distance measurement by using the tandem low-coherence interferometric method provides the possibility to perform remote measurement of the internal distance between two points [12, 13]. You may subscribe either as an OSA member, or as an authorized user of your institution. In situ absolute surface metrology for a 600 mm aperture interferometer 1. With our proposed method, the profiles of both the test surface and the reference surface can be calculated simultaneously. absolute method of measurement vok. measurementofresistance.Itisidealinitssimplicity,andin its method of directlybalancingaconstant induced electro- motive forceagainstthe fall of potential in theresistanceto be The method is established in QA and certification on insulating materials and it is the basis for thermal conductivity check of every available thermal conductivity reference material for steady state methods. Stress measurement methods 1 such as sectioning, hole drilling, X-ray diffraction, neutron diffraction, the magnetoelastic method, and ultrasound can be used to measure absolute stress. Interferometry is a relative measurement method for optical surface testing, and thus its testing accuracy depends on the accuracy of the reference surface. Method for absolute measurement of the geometric or optical structure of an optical component and device for its implementation. Based on the wavefront difference method, the high order misalignment aberrations can be removed from the measurements. COVID-19 is an emerging, rapidly evolving situation. For absolute regular ~specular! The proposed method is not necessary to replace the transmission flat with another flat and rotate the reflection flat about the z-axis, it … Interferometry is a relative measurement method for optical surface testing, and thus its testing accuracy depends on the accuracy of the reference surface. Absolute measurement of optical flat surface shape based on the conjugate differential method. The sectioning 8 and hole-drilling 9 methods are both destructive to members and thus are not recommended for use on existing structures. Lei Z, Liu X, Zhao LI, Yang W, Chen C, Guo X. J Microsc. NLM A novel absolute measurement method based on multisurface interference for a 600 mm aperture interferometer is proposed. By continuing to use this site, you agree to our use of cookies. Series A, Containing Papers of a Math. абсолютный метод измерения, m pranc. 214:27–108 Secondary instruments are calibrated by comparison with an absolute instruments. As you can see, the absolute value removes the negative value. This site needs JavaScript to work properly. You do not have subscription access to this journal. Direct method of measurement: This is a simple method of measurement, in which the value of the … 59(17) 5158-5166 (2020), Kewei E, Dahai Li, Chen Zhang, Tao Zhang, Mengyang Li, Qin Wang, Chengying Jin, and Zhao Xiong Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution. Our general … 1914-01-01. We further carried out simulation analysis to scientifically evaluate the test accuracy of the proposed method. Article tables are available to subscribers only. Introduction. © Copyright 2021 | The Optical Society. Lisong Yan, Fazhi Li, Xiaokun Wang, Haidong Zhang, Lei Zhang, and Donglin Ma, Lisong Yan,1 Opt. Would you like email updates of new search results? Equations are available to subscribers only. 16. The exception is that you take the absolute value of the difference between the actual and forecast. Measurement of absolute value of gravity (free-fall) acceleration. 2) Secondary instruments :: These instruments are so constructed that the quantity being measured … Use quotation marks " " around specific phrases where you want the entire phrase only. 48(13) 2536-2541 (2009), Dong Yang, Zhongming Yang, Jiantai Dou, and Zhaojun Liu or Phys. At PTB, the measurement of the absolute spectral responsivity of filter radiometers traceable to a cryogenic radiometer was implemented in the late 1980s, and is routinely per- formed since the early 1990s [11,18]. A Micro Absolute Distance Measurement Method Based on Dispersion Compensated Polarized Low-Coherence Interferometry 1. Absolute planarity with three-flat test: an iterative approach with Zernike polynomials. Opt Lett. Huang Y, Ma J, Zhu R, Yuan C, Chen L, Cai H, Sun W. Opt Express. reflectance mea-surements, various methods, including, V–W, V–N, and goniometer-based methods, are typically used.2,3 Thesemethodstypicallydonotinvolveanintegrating sphere. With our proposed method, the profiles of both the test surface and the reference surface can be calculated simultaneously. Absolute gravimetry. Opt Express. Direct or calibrated thermal conductivity measurements is also referred to as a comparative method. Please enable it to take advantage of the complete set of features! The method for determining absolute fluorescence quantum yield which is derived en The statistical method accounts for the mean and standard deviation associated with error measurements of the subject IED, and the absolute method uses the absolute value of the error measurement, expressed as a percentage, to produce ranges of … Xiaokun Wang,3 Click here to learn more.  |  2016 Mar 20;55(9):2387-92. doi: 10.1364/AO.55.002387. Express 23(23) 29687-29697 (2015), Chen Xu, Lei Chen, and Jiayi Yin Contact your librarian or system administrator Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. Direct or calibrated thermal conductivity. Opt. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. A review of the usefulness and accuracy of methods for absolute measurements of the activity of isotopes is given. Clipboard, Search History, and several other advanced features are temporarily unavailable. Lisong Yan, Fazhi Li, Xiaokun Wang, Haidong Zhang, Lei Zhang, and Donglin Ma, "Method for absolute measurement of flat surface," Appl. Use these formats for best results: Smith or J Smith, Use a comma to separate multiple people: J Smith, RL Jones, Macarthur. You do not have subscription access to this journal. Pressure measurement is the analysis of an applied force by a fluid (liquid or gas) on a surface. Since the relative measurement only provides limited information on PL materials, various methods for absolute QE measurement have been developed. You may subscribe either as an OSA member, or as an authorized user of your institution. We present an efficient absolute measurement method based on Zernike polynomial fitting algorithms. absolute method of measurement— absoliutusis matavimo metodas statusas T sritis fizika atitikmenys: angl. Pressure is typically measured in units of force per unit of surface area.Many techniques have been developed for the measurement of pressure and vacuum.Instruments used to measure and display pressure in an integral unit are called pressure meters or pressure gauges or vacuum gauges. Lei Zhang,4 Ya Huang, Jun Ma, Rihong Zhu, Caojin Yuan, Lei Chen, Huijuan Cai, and Weiyuan Sun All measurement data from measurements at TKK and part of the measurement data from measurements at PTB for publication II were analyzed by the author. We present an efficient absolute measurement method based on Zernike polynomial fitting algorithms. Finally, we conducted actual experiments to demonstrate the feasibility and practicability of our method. dial indicators & other comparators. Click here to see what's new. The measurement data of publications I, III and IV were analyzed by the author. 5. and Donglin Ma1,*, 1School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China, 2Hunan University of Technology, Zhuzhou, Hunan 412007, China, 3Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China, 4Key Laboratory of Opto-Electronic Information Acquisition and Manipulation, Ministry of Education, Anhui University, Hefei 230601, China, *Corresponding author: madonglin@hust.edu.cn. When we take the measurement of an object, it is possible that the measured value is either a little more or a little lower than its true value, that is, an absolute error has occurred. Login to access OSA Member Subscription. You do not have subscription access to this journal. What does absolute measurement mean? 2012 Aug 1;37(15):3198-200. doi: 10.1364/OL.37.003198. The solid angle and BETA -- gamma coincidence methods are described and results compared with the results of measurement of standards from The National Physical Laboratory, England. Appl. Absolute measurement is one of the most effective methods to improve the testing accuracy in interferometry. You may subscribe either as an OSA member, or as an authorized user of your institution. USA.gov. 2015 Nov 16;23(23):29687-97. doi: 10.1364/OE.23.029687. Comparison Method: The value of quantity to be measured is compared with a known value of a same or related quantity to it. Hence, we propose a new method for directly measuring the absolute internal distance between two points without the use of angle or coordinate information by using a tandem low … Absolute surface figure testing by shift-rotation method using Zernike polynomials. We've also updated our Privacy Notice. Fazhi Li,2 You may subscribe either as an OSA member, or as an authorized user of your institution. Absolute error of a measurement is the difference between the measured value of an object and its true value. You do not have subscription access to this journal. 2019 Dec;276(3):118-127. doi: 10.1111/jmi.12843. Appl Opt. Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored. Opt. 2008 Jan 7;16(1):340-54. doi: 10.1364/oe.16.000340. or Improve efficiency in your search by using wildcards. Haidong Zhang,3 Let’s see how the calculation works for Sunday: MAPE = (Absolute Value(79 – 81) / 79) x 100 = 3.9 . absolute Meßmethode, f rus. For best results, use the separate Authors field to search for author names. Absolute Measurements of a Resistance by a Method Based on That of Lorenz. Figure files are available to subscribers only. Measurement of absolute value of gravity (free-fall) acceleration. Principle of PLCI for MADM and the Proposed Method. These are more frequently used in measurement of the quantities as compared to absolute instruments, as working with absolute instruments is … Absolute flatness testing of skip-flat interferometry by matrix analysis in polar coordinates. With our proposed method, the profiles of both the test surface and the reference surface can be calculated simultaneously. In … These measurements are also known as absolute measurements. Finally, we conducted actual experiments to demonstrate the feasibility and practicability of our method. You do not have subscription access to this journal. -- Example: "gr?y" retrieves documents containing "grey" or "gray". You may subscribe either as an OSA member, or as an authorized user of your institution. Some subsets of the Absolute measurement is one of the most effective methods to improve the testing accuracy in interferometry. Learn more about our response to COVID-19 including information for. With direct measurements, measuring instruments such as Vernier calipers, micrometers, and coordinate measuring machines are used to measure the dimensions of the target directly. Appl. Character (1896-1934). This website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience. They involve an input beam, several direct-ing mirrors, and the detector. For high-precision surface measurements, the … Keep it simple - don't use too many different parameters. Micro absolute distance measurement (MADM) is widely used in industrial and military fields, such as... 2. By shift-rotation method using Zernike polynomials 2009 ), Dong Yang, Yang... 15 ):3198-200. doi: 10.1111/jmi.12843 of absolute measurement method solution of QD [ 10–12.! Plci for MADM and the detector of dilute solution of QD [ 10–12 ], Chen,! 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To as a comparative method dictionary definitions resource absolute measurement method the accuracy of the proposed method novel absolute measurement for!, V–W, V–N, and Jiayi Yin Appl absolute value removes the negative value of measurement of measurement. On multisurface interference for a 600 mm aperture interferometer is proposed, Rihong Zhu, Caojin Yuan, Chen. Heat-Flow is very well understood our use of cookies is one of the base quantities used to define a quantity... The difference between the measured value of gravity ( free-fall ) acceleration ( 2015,! Surface and the reference surface 2012 Aug 1 ; 37 ( 15:3198-200.... Fluid ( liquid or gas ) on a surface ) is absolute measurement method used in industrial and military fields, as...: the value of quantity to it solution of QD [ 10–12 ] or related quantity to measured... With polygonal apertures based on multisurface interference for a 600 mm aperture interferometer is proposed measurement the... 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