Uncertainty in NIST force measurements

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Uncertainty in NIST Force Measurements

This paper focuses upon the uncertainty of force calibration measurements at the National Institute of Standards and Technology (NIST). The uncertainty of the realization of force for the national deadweight force standards at NIST is discussed, as well as the uncertainties associated with NIST's voltage-ratio measuring instruments and with the characteristics of transducers being calibrated. T...

متن کامل

Uncertainty quantification in nanomechanical measurements using the atomic force microscope.

Quantifying uncertainty in measured properties of nanomaterials is a prerequisite for the manufacture of reliable nanoengineered materials and products. Yet, rigorous uncertainty quantification (UQ) is rarely applied for material property measurements with the atomic force microscope (AFM), a widely used instrument that can measure properties at nanometer scale resolution of both inorganic and ...

متن کامل

Uncertainty of Nist Airspeed Calibrations

The National Institute of Standards and Technology (NIST) provides calibration services for airspeed instruments. Here, we describe NIST’s recently upgraded airspeed calibration system and its uncertainty. At NIST, airspeed calibrations are performed over the range 0.15 m/s to 40 m/s in the wind tunnel that has a test cross section of 1.5 m by 2.1 m. The standard for airspeed measurement is a f...

متن کامل

NIST-ASME WORKSHOP ON UNCERTAINTY IN DIMENSIONAL MEASUREMENTS Gaithersburg, MD June 5–7, 2001

While the use of measurement uncertainty in dimensional measurements, particularly uncertainty represented according to the ISO Guide to the Expression of Uncertainty in Measurement (GUM), is a wellestablished practice among national metrology institutes (NMIs), is a required basis for commercial laboratory accreditation, and is being specified in international product standards, such use is ra...

متن کامل

NIST Mechanisms for Disseminating Measurements

The national responsibilities assigned to the National Bureau of Standards (NBS) early in the last century for providing measurement assistance and service are carried out today by the four programs that comprise the National Institute of Standards and Technology (NIST) Office of Measurement Services (OMS). They are the Calibration Program (CP), the Standard Reference Materials Program (SRMP), ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Research of the National Institute of Standards and Technology

سال: 2005

ISSN: 1044-677X

DOI: 10.6028/jres.110.084