Class information for:
Level 1: GAUGE BLOCK//ABSOLUTE DISTANCE MEASUREMENT//AIR REFRACTIVE INDEX

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
263 3       OPTICS//APPLIED OPTICS//OPTICS AND LASERS IN ENGINEERING 45499
1174 2             FRINGE ANALYSIS//OPTICS AND LASERS IN ENGINEERING//FRINGE PROJECTION 9759
12949 1                   GAUGE BLOCK//ABSOLUTE DISTANCE MEASUREMENT//AIR REFRACTIVE INDEX 901

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 GAUGE BLOCK authKW 578223 3% 72% 23
2 ABSOLUTE DISTANCE MEASUREMENT authKW 526124 2% 79% 19
3 AIR REFRACTIVE INDEX authKW 314805 1% 100% 9
4 ABSOLUTE DISTANCE authKW 264517 1% 69% 11
5 FREQUENCY SCANNING INTERFEROMETRY authKW 248733 1% 89% 8
6 ABSOLUTE LENGTH MEASUREMENT authKW 244848 1% 100% 7
7 SINUSOIDAL PHASE MODULATING authKW 209870 1% 100% 6
8 SYNTHETIC WAVELENGTH authKW 172195 1% 62% 8
9 REFRACTIVE INDEX OF AIR authKW 157399 1% 75% 6
10 TANDEM INTERFEROMETER authKW 145741 1% 83% 5

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 20467 62% 0% 560
2 Instruments & Instrumentation 6311 27% 0% 240
3 Engineering, General 1918 12% 0% 104
4 Physics, Applied 298 14% 0% 130
5 Engineering, Manufacturing 153 3% 0% 23
6 Spectroscopy 29 2% 0% 20
7 Physics, Multidisciplinary 16 4% 0% 34
8 Engineering, Electrical & Electronic 3 4% 0% 37
9 Automation & Control Systems 3 1% 0% 7
10 Nanoscience & Nanotechnology 2 2% 0% 14

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ULTRAFAST OPT ULTR RECIS GRP 139905 1% 50% 8
2 DIOPT 69957 0% 100% 2
3 ENGN METROL GRP 69957 0% 100% 2
4 INFORMAT OPT OPT ELECT TECHNOL 69957 0% 100% 2
5 PHYS ANGEW PHYS 69957 0% 100% 2
6 PHYS CHEM OPT ENGN 69957 0% 100% 2
7 STATE PRECIS MEASUREMENT TECHNOL RU 62634 6% 4% 50
8 ADV MACHINING FUNDAMENTAL SCI 46636 0% 67% 2
9 COHERENCE OPT 46636 0% 67% 2
10 AEOSP LAER 34978 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 APPLIED OPTICS 34124 21% 1% 187
2 TECHNISCHES MESSEN 15300 2% 2% 18
3 MEASUREMENT SCIENCE AND TECHNOLOGY 15244 7% 1% 64
4 METROLOGIA 15077 4% 1% 35
5 OPTICAL ENGINEERING 7860 6% 0% 57
6 OPTICAL REVIEW 5933 2% 1% 19
7 PTB-MITTEILUNGEN 4567 1% 2% 6
8 JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS 3844 1% 1% 8
9 OPTICS LETTERS 3843 6% 0% 58
10 JOURNAL OF OPTICS-NOUVELLE REVUE D OPTIQUE 3423 1% 1% 8

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 GAUGE BLOCK 578223 3% 72% 23 Search GAUGE+BLOCK Search GAUGE+BLOCK
2 ABSOLUTE DISTANCE MEASUREMENT 526124 2% 79% 19 Search ABSOLUTE+DISTANCE+MEASUREMENT Search ABSOLUTE+DISTANCE+MEASUREMENT
3 AIR REFRACTIVE INDEX 314805 1% 100% 9 Search AIR+REFRACTIVE+INDEX Search AIR+REFRACTIVE+INDEX
4 ABSOLUTE DISTANCE 264517 1% 69% 11 Search ABSOLUTE+DISTANCE Search ABSOLUTE+DISTANCE
5 FREQUENCY SCANNING INTERFEROMETRY 248733 1% 89% 8 Search FREQUENCY+SCANNING+INTERFEROMETRY Search FREQUENCY+SCANNING+INTERFEROMETRY
6 ABSOLUTE LENGTH MEASUREMENT 244848 1% 100% 7 Search ABSOLUTE+LENGTH+MEASUREMENT Search ABSOLUTE+LENGTH+MEASUREMENT
7 SINUSOIDAL PHASE MODULATING 209870 1% 100% 6 Search SINUSOIDAL+PHASE+MODULATING Search SINUSOIDAL+PHASE+MODULATING
8 SYNTHETIC WAVELENGTH 172195 1% 62% 8 Search SYNTHETIC+WAVELENGTH Search SYNTHETIC+WAVELENGTH
9 REFRACTIVE INDEX OF AIR 157399 1% 75% 6 Search REFRACTIVE+INDEX+OF+AIR Search REFRACTIVE+INDEX+OF+AIR
10 TANDEM INTERFEROMETER 145741 1% 83% 5 Search TANDEM+INTERFEROMETER Search TANDEM+INTERFEROMETER

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 12315 WHITE LIGHT INTERFEROMETRY//WHITE LIGHT SCANNING INTERFEROMETRY//ELLIPSO HEIGHT TOPOMETRY
2 10324 HETERODYNE INTERFEROMETRY//HETERODYNE INTERFEROMETER//NANOMETER MEASUREMENT
3 5806 FREQUENCY COMB//OPTICAL FREQUENCY COMB//OPTICAL FREQUENCY METROLOGY
4 14764 SELF MIXING INTERFERENCE//SELF MIXING INTERFEROMETRY//SELF MIXING
5 8188 EXTRINSIC FABRY PEROT INTERFEROMETER//WHITE LIGHT INTERFEROMETRY//MICHELSON INTERFEROMETRIC SENSOR
6 23617 LASER INTERFERENCE MICROSCOPY//COHERENT PHASE MICROSCOPY//DYNAMIC PHASE MICROSCOPY
7 12144 DISTRIBUTED OPTICAL FIBER SENSOR//PHASE SENSITIVE OPTICAL TIME DOMAIN REFLECTOMETRY//OPTICAL TIME DOMAIN REFLECTOMETER OTDR
8 1012 SHEAROGRAPHY//SPECKLE INTERFEROMETRY//PL COMP MECH
9 27000 ANGLE ENCODER//ANGLE STANDARD//AUTOCOLLIMATOR
10 8643 MODULATION TRANSFER SPECTROSCOPY//IODINE SPECTROSCOPY//OPTICAL FREQUENCY STANDARD

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