Experimental calibration procedures for rotating Lorentz-force flowmeters

Dynamic Weighing Calibration Method for Liquid Flowmeters -a New Approach

In the last years, the PTB liquid flow group has been working on the development of a new method to calibrate liquid flowmeters under dynamics conditions [1,2]. Such a measurement principle is based on a dynamic weighing approach, which is able to reproduce the unit of mass flow several times, with the ultimate goal to reduce the calibration time, energy cost, and workload in liquid flow calibr...

Gravitational Lorentz Force

In quantum gauge theory of gravity, the gravitational field is represented by gravitational gauge field. The field strength of gravitational gauge field has both gravitoelectric component and gravitomagnetic component. In classical level, gauge theory of gravity gives out classical Newtonian gravitational interactions in a relativistic form. Besides, it gives out gravitational Lorentz force whi...

Lorentz Force Electrical Impedance Tomography

Calibration method for rotating-analyzer ellipsometers

One of the main sources of errors in ellipsometry is inaccurate calibration; if the plane of incidence is not known correctly, all azimuthal angles of the optical components involved, such as the polarizer, the analyzer, and sometimes the compensator, contain errors. Thus calibration errors proliferate, leading ultimately to errors in the measured quantities A and *. Not withstanding the fact t...

Spirometer Calibration Check Procedures

drastically displaced. From our side, this has lead to an intelligent analytical procedure that we call “InCAP,” which groups waveforms into clusters.3 The cluster that most closely agrees with the normal capnogram is used for calculating PETCO2. This analysis system provides considerably better agreement between the data from cluster 1 and the PaCO2 value. The problematic nature of the convent...