National Institute of Advanced Industrial Science and Technology (AIST) This page is a page of the former research institute. We stopped updating on March 31.2001.
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Recent Publication


1999

    

  1.  Terao and TakamotoC"Optimization of a Bluff Body in a Vortex Shedding Flowmeter and 
New Method to Estimate Its Flow Measurement Uncertainty", Journal of Society of Control 
and Instrumentation Engineers, Vol.35, No.5, 623/629(1999), in Japanese.


  2.  Ishibashi and Takamoto, "Discharge Coefficient of Super Accurate Critical Nozzle at 
Pressurized Condition", 4th International Symposium on Fluid Flow Measurement, Session 6, 
Denver(1999) .


  3.  Terao and Takamoto, "Uncertainty Analysis of Large Water Flow Calibration Facility", 4th 
International Symposium on Fluid Flow Measurement, Session 14, Denver(1999).


  4.  Takamoto and Terao, "Standardization of Vortex Shedding Flowmeter", 4th International 
Symposium on Fluid Flow Measurement, Session 17, Denver(1999).



1998

    

  1.  Takamoto, Ishibashi and Nakao, "Study on standards of gas flow rates and performance of 
sonic Venturi nozzles", Journal of Society of Control and Instrumentation Engineers, Vol.37, 
No.6 pp.432-445 (1998), in Japanese.


  2.  Ishibashi, Takamoto, Nakao and Yokomizo, "Calibration of Critical Nozzles Against Another 
One Connected in Series and Its Application", Transaction of Society of Control and 
Instrumentation Engineers, 34-7, 698/706(1998) in Japanese.


  3.  Ishibashi, Takamoto and Watanabe, "Simplified Method to Calibrate a Critical Nozzle by 
Utilizing the Linearity of a Pressure Gauge,", Transaction of Society of Control and 
Instrumentation Engineers, 34-7, 707/713(1998) in Japanese.


  4.  J. D. Wright, G. E. Mattingly, S.Nakao, Y. Yokoi and M. Takamoto, "International 
comparison of a NIST primary standard with an NRLM transfer standard for small mass flow 
rates of nitrogen gas", Metrologia, 1998, 35, pp.211-221.


  5.  H. Ishikawa, M. Takamoto, K. Shimizu, G. Matsui, "The effect of beam width on the 
performance of ultrasonic flowmeter", Proceedings of FLOMEKO'98


  6.  S. Nakao, "Choking Phenomenon of Sonic Venturi Nozzles on Low Reynolds Numbers", 
Proceedings of FLOMEKO'98


  7.  S. Nakao, Y. Yokoi, T. Hirayama, M. Masaki, J. Barbe and A. Marschal, "Intercomparison 
Tests of BNM-LNE with NRLM for Small Mass Flow Rates of N2, Ar and He in the Range 
from 40 mg/min to 10 g/min" ,Proceedings of FLOMEKO'98


  8.  Y Terao, H.M. Choi, M. Takamoto and G. Matsui, "Measurement of Karman vortex street 
shed in a circular pipe using a triple hot wire probe", Proceedings of FLOMEKO'98


  9.  Ishibashi, Takamoto, Nakao, Watanabe, Yokoi, and Ina, "Calibration of Critical Nozzles by 
Critical Nozzles" Proceedings of FLOMEKO'98


  10.  Ishibashi and Takamoto, "Discharge Coefficient of Critical Nozzles Machined by Super-
Accurate Lathes", Proceedings of the 1998 NCSL Workshop and Symposium423/442 (July 
1998, Albuquerque)



1997

    

  1.  Y. Terao, M. Takamoto and T. Katagiri, "Very Low Speed Wind Tunnel for Anemometer 
Calibration", Trans. Japan Society of Mechanical Engineers, Series B, Vol. 63, No. 607, 
938/943 (1997), in Japanese.


  2.  Y. Terao, M. Takamoto et. al., "Preliminary Intercomparison of Anemometer Calibration 
Systems at Very Low Speeds between the National Standard Laboratories in Japan and USA", 
JSME International Journal, Series B, Vol. 40, No. 3, 509/515 (1997).


  3.  S. Nakao, T. Hirayama et. al., "Effects of Thermalphysical Properties of Gases on the 
Discharge Coefficient of the Sonic Venturi Nozzle", Proc. 1997 ASME Fluid Engineering Div. 
Summer Meeting, FEDSM-3005 (1997).


  4.  M. Ishibashi and M. Takamoto, "Very Accurate Analytical Calculation of the Discharge 
Coefficient of Critical Venturi Nozzles with Laminar Boundary Layer," Proc. 
FLUCOME'97(1997).



1996

    

  1.  M. Takamoto, "New Flow Measurement Technology for the Next Century", Proc. 
FLOMEKO'96 (1996).

  2.  S. Nakao, Y. Yokoi and M. Takamoto, "Development of a Calibration Facility for Small Mass 
Flow Rates of Gas and the Uncertainty of a Sonic Venturi Transfer Standard", Flow 
Measurement and Instrumentation, Vol. 7, No. 2, 77/83 (1996).

  3.  Kurihara, N.; Takamoto, M., Proc. of 8th Int. Sym. on Applications of Laser Techniques to 
Fluid Mechanics, Lisbon, pp. 34.5.1-34.5.5 (1996)



1995

    

  1.  M. Takamoto and Y. Terao, "Dry Calibration of a Vortex Shedding Flowmeter", Joint 
ASME/JSME Symp. on Fluids Engineering (1995).


  2.  Y. Terao and M. Takamoto, "A Very Low Speed Wind Tunnel for Anemometer Calibration", 
Joint ASME/JSME Symp. on Fluids Engineering (1995).



1994

    

  1.  M. Ishibashi, M. Takamoto et. al., "Precise Calibration of Critical Nozzles of Various Shapes 
at the Re = 0.8 - 2.5 x 105", Proc. FLOMEKO'94 (1994).


  2.  M. Takamoto and Y. Terao "Development of Standard Vortex Shedding Flowmeter", Proc. 
FLOMEKO'94 (1994).


  3.  Y. Terao, M. Takamoto et. al., "Velocity Distribution in a Very Low Speed Wind Tunnel", 
Proc. FLUCOME'94 (1994).


  4.  M. Takamoto and K. Shimizu, "Study of Characteristics of an Ultrasonic Flowmeter for 
Range of Small Flow Rates", Proc. FLUCOME'94 (1994).



1993

    

  1.  M. Ishibashi, M. Takamoto et. al., "Estimation of the Uncertainty of Discharge Coefficients of 
Sonic Venturi Nozzles Measured by the Constant Volume Tank Method", Trans. Society of 
Instrumentation and Control Engineers, Vol.29 No.1, 1/9 (1993), in Japanese.


  2.  M. Takamoto, M. Ishibashi et. al., "Intercomparison Tests of Gas Flow Rate Standards", Proc. 
FLOMEKO'93, 75/81 (1993).


  3.  Y. Terao and M. Takamoto, "An Experimental Study of Flow Structure in Vortex 
Flowmeters" Proc. FLOMEKO'93, 327/334 (1993).


  4.  M. Takamoto, Y. Terao et. al., "Installation Effects of Vortex Shedding Flowmeter", Flow 
Measurement and Instrumentation, Vol.4 No.4, 277/285 (1993).






   

 the small flowrate test facility

	



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