Class information for:
Level 1: PISTON GAUGE//PRIMARY PRESSURE STANDARD//METROLOGIA

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
27313 232 13.4 29%


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
2 4 MATERIALS SCIENCE, MULTIDISCIPLINARY//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 2836879
28 3       SYNTHETIC METALS//POLYANILINE//CONJUGATED POLYMERS 109289
2851 2             POLYDIACETYLENE//OPTOELECT SCI TECHNOL ANHUI PROV//DIACETYLENE 2945
27313 1                   PISTON GAUGE//PRIMARY PRESSURE STANDARD//METROLOGIA 232

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PISTON GAUGE authKW 658090 2% 100% 5
2 PRIMARY PRESSURE STANDARD authKW 658090 2% 100% 5
3 METROLOGIA journal 505354 44% 4% 103
4 PISTON CYLINDER ASSEMBLY authKW 470061 2% 71% 5
5 PRESSURE METROLOGY authKW 300838 2% 57% 4
6 DEAD WEIGHT TESTER authKW 263236 1% 100% 2
7 P SURE VACUUM GRP address 263236 1% 100% 2
8 PISTON CYLINDER UNIT authKW 263236 1% 100% 2
9 PRESSURE DIAL GAUGE authKW 263236 1% 100% 2
10 ULTRASONIC INTERFEROMETER MANOMETER authKW 263236 1% 100% 2

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Instruments & Instrumentation 14733 78% 0% 181
2 Physics, Applied 2229 62% 0% 144
3 Engineering, General 678 13% 0% 31
4 Physics, Multidisciplinary 41 8% 0% 18
5 Materials Science, Characterization, Testing 19 1% 0% 3
6 Thermodynamics 14 3% 0% 6
7 Mechanics 1 2% 0% 4
8 Materials Science, Coatings & Films 1 1% 0% 2
9 Chemistry, Analytical 0 2% 0% 5
10 Engineering, Mechanical 0 1% 0% 3

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 P SURE VACUUM GRP 263236 1% 100% 2
2 PHYS NPLI 182795 2% 28% 5
3 DIP MECCAN STRUTT AMBIENTE TERRITORIO 175489 1% 67% 2
4 NMIJ AIST 175489 1% 67% 2
5 IMGC CNR 131618 0% 100% 1
6 INM BNM 131618 0% 100% 1
7 MASS RELATED QUANTIT SECT 131618 0% 100% 1
8 TECH STAND ACT PROGRAM 131618 0% 100% 1
9 THERMOPHYS P SURE GRP 131618 0% 100% 1
10 IST METROL G COLONNETTI 120322 3% 11% 8

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 METROLOGIA 505354 44% 4% 103
2 MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA 115757 7% 5% 16
3 PTB-MITTEILUNGEN 17281 3% 2% 6
4 TURBOMACHINERY INTERNATIONAL 5981 0% 5% 1
5 JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS 4644 4% 0% 9
6 MEASUREMENT TECHNIQUES USSR 4586 2% 1% 5
7 JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS 3520 1% 1% 3
8 JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY 3421 2% 1% 5
9 HIGH TEMPERATURES-HIGH PRESSURES 1819 1% 0% 3
10 MEASUREMENT SCIENCE AND TECHNOLOGY 1741 5% 0% 11

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 PISTON GAUGE 658090 2% 100% 5 Search PISTON+GAUGE Search PISTON+GAUGE
2 PRIMARY PRESSURE STANDARD 658090 2% 100% 5 Search PRIMARY+PRESSURE+STANDARD Search PRIMARY+PRESSURE+STANDARD
3 PISTON CYLINDER ASSEMBLY 470061 2% 71% 5 Search PISTON+CYLINDER+ASSEMBLY Search PISTON+CYLINDER+ASSEMBLY
4 PRESSURE METROLOGY 300838 2% 57% 4 Search PRESSURE+METROLOGY Search PRESSURE+METROLOGY
5 DEAD WEIGHT TESTER 263236 1% 100% 2 Search DEAD+WEIGHT+TESTER Search DEAD+WEIGHT+TESTER
6 PISTON CYLINDER UNIT 263236 1% 100% 2 Search PISTON+CYLINDER+UNIT Search PISTON+CYLINDER+UNIT
7 PRESSURE DIAL GAUGE 263236 1% 100% 2 Search PRESSURE+DIAL+GAUGE Search PRESSURE+DIAL+GAUGE
8 ULTRASONIC INTERFEROMETER MANOMETER 263236 1% 100% 2 Search ULTRASONIC+INTERFEROMETER+MANOMETER Search ULTRASONIC+INTERFEROMETER+MANOMETER
9 PRESSURE STANDARD 210584 2% 40% 4 Search PRESSURE+STANDARD Search PRESSURE+STANDARD
10 PRESSURE BALANCE 208030 3% 23% 7 Search PRESSURE+BALANCE Search PRESSURE+BALANCE

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.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 DOGRA, S , YADAV, S , BANDYOPADHYAY, AK , (2010) COMPUTER SIMULATION OF A 1.0 GPA PISTON-CYLINDER ASSEMBLY USING FINITE ELEMENT ANALYSIS (FEA).MEASUREMENT. VOL. 43. ISSUE 10. P. 1345-1354 10 100% 3
2 YADAV, S , GUPTA, VK , BANDYOPADHYAY, AK , (2011) STANDARDISATION OF PRESSURE MEASUREMENT USING PRESSURE BALANCE AS TRANSFER STANDARD.MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA. VOL. 26. ISSUE 2. P. 133 -151 9 100% 0
3 YADAV, S , GUPTA, VK , BANDYOPADHYAY, AK , (2010) INVESTIGATIONS ON MEASUREMENT UNCERTAINTY AND STABILITY OF PRESSURE DIAL GAUGES AND TRANSDUCERS.MEASUREMENT SCIENCE REVIEW. VOL. 10. ISSUE 4. P. 130 -135 9 90% 3
4 EHRLICH, C , (1994) A REVIEW OF GAS-OPERATED PISTON GAUGES.METROLOGIA. VOL. 30. ISSUE 6. P. 585-590 12 100% 1
5 SHARIPOV, F , YANG, YC , RICKER, JE , HENDRICKS, JH , (2016) PRIMARY PRESSURE STANDARD BASED ON PISTON-CYLINDER ASSEMBLIES. CALCULATION OF EFFECTIVE CROSS SECTIONAL AREA BASED ON RAREFIED GAS DYNAMICS.METROLOGIA. VOL. 53. ISSUE 5. P. 1177 -1184 12 52% 0
6 SUTTON, CM , FITZGERALD, MP , (2009) PERFORMANCE ASPECTS OF GAS-OPERATED PRESSURE BALANCES AS PRESSURE STANDARDS.METROLOGIA. VOL. 46. ISSUE 6. P. 655 -660 7 100% 4
7 YADAV, S , BANDYOPADHYAY, AK , DILAWAR, N , GUPTA, AC , (2002) INTERCOMPARISON OF NATIONAL HYDRAULIC PRESSURE STANDARDS UP TO 500 MPA.MEASUREMENT & CONTROL. VOL. 35. ISSUE 2. P. 47-51 8 100% 5
8 SADANA, S , YADAV, S , JHA, N , GUPTA, VK , AGARWAL, R , BANDYOPADHYAY, AK , SAXENA, TK , (2011) A COMPUTER CONTROLLED PRECISION HIGH PRESSURE MEASURING SYSTEM.MEASUREMENT SCIENCE REVIEW. VOL. 11. ISSUE 6. P. 198-202 6 100% 2
9 DOGRA, S , SINGH, J , LODH, A , SHARMA, ND , BANDYOPADHYAY, AK , (2011) A COMPARATIVE APPROACH FOR THE CHARACTERIZATION OF A PNEUMATIC PISTON GAUGE UP TO 8 MPA USING FINITE ELEMENT CALCULATIONS.MEASUREMENT SCIENCE AND TECHNOLOGY. VOL. 22. ISSUE 2. P. - 6 100% 0
10 OLSON, DA , DRIVER, RG , BOWERS, WJ , (2010) A GAS PRESSURE SCALE BASED ON PRIMARY STANDARD PISTON GAUGES.JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY. VOL. 115. ISSUE 6. P. 393 -412 6 100% 1

Classes with closest relation at Level 1


Rank Class id link
1 34743 FAT MEAT TECHNOL//SECT ACOUSTOELECT//HIGH PRESSURE FOOD PROCESSING
2 21640 BOLTZMANN CONSTANT//PRIMARY THERMOMETRY//ACOUSTIC THERMOMETRY
3 4923 VACUUM//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A//GETTER
4 8839 AVOGADRO CONSTANT//KILOGRAM//WATT BALANCE
5 11064 ITS 90//INTERNATIONAL JOURNAL OF THERMOPHYSICS//METROLOGIA
6 29773 DANISH PRIMARY ACOUST//MICROPHONE CALIBRATION//ACOUSTICAL CALIBRATION
7 35841 QAS//2 CHLORO 1 1 2 TRIFLUOROETHYL METHYL ETHER//ANHYDROUS FLUORINE GAS
8 34449 ENTHALPY OF WETTING//DICHEP CHEM ENGN PROC//MICROPROBE MEASUREMENTS
9 22831 CRYOGENICS//CRYOGENIC THERMOMETERS//DIODE THERMOMETERS
10 32592 ANALYSIS OF ALUMINIUM MATERIALS//C 5 C 9 AND C 12 C 18 HYDROCARBONS//CHAIR WATER WATERSEWAGE TREATMENT

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