MN·m torque calibration for nacelle test benches using transfer standards

Test Benches for Calibrating Custody Transfer Gas Meter

Several transmission and distribution companies in Western Europe operate test facilities for testing industrial meters like larger diaphragm gas meters, rotary gas meters and turbine gas meters. Alternatively, they lease mobile provers. Those installations are not suitable to perform the initial calibration (and try to save money on the calibration costs), but are suitable to perform all kind ...

Improvements in the Nist Calibration Service for Thermal Transfer Standards

We report on multiple improvements made in the calibration services offered for thermal converters and thermal transfer standards in the ac-dc Difference Standards and Measurement Techniques Project at NIST during the past year. The major improvement in this calibration is the increased efficiency made possible by the consolidation of three disparate calibration services – low voltage thermal t...

Generic Methodology for Field Calibration of Nacelle-Based Wind Lidars

Nacelle-based Doppler wind lidars have shown promising capabilities to assess power performance, detect yaw misalignment or perform feed-forward control. The power curve application requires uncertainty assessment. Traceable measurements and uncertainties of nacelle-based wind lidars can be obtained through a methodology applicable to any type of existing and upcoming nacelle lidar technology. ...

Mobile Communication Test Methods for Car-to-car Test Benches

Calibration of Ac-dc Voltage Transfer Standards at Inmetro

The aim of this work is to present the AC-DC transfer calibration system of Voltage and Current Laboratory (Latce) of brazilian's Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro). Latce is responsible for the realizations of both the volt and the ampère in accordance to SI, and for it's dissemination through the network of accredited laboratories in Brazil, so as ...