"Other systems work using a measuring grid
of infra-red light," explains Torsten Sattler, another postdoc in Pollefeys' group who is also participating in the project.
The computation of the phase center of an antenna by means of the least-squares fit method implies the comparison between the measured phase value at each point of the planar measuring grid and the theoretical expected one in the grid, for different distances z.
where, again, [A.sub.mn] ([x.sub.n], [y.sub.m], [z.sub.0]) and [[phi].sub.meas] ([x.sub.n], [y.sub.m], [z.sub.0]) are the measured amplitude and phase at each point ([x.sub.n], [y.sub.m]) of the measuring grid, [d.sub.x]/y is the distance between points in the grid, [k.sub.x] and [k.sub.y] are the components of the wave vector in Cartesian coordinate system and m and n are the reference to the location of the different points in the grid.
To further understand the nature of inaccuracy in direct measurement, an additional method, termed the multi-sensor measuring grid, is applied.
A measuring grid in the inlet of the supply air duct and riAht out of the RTU is also constructed for the experiments.
Strain gages with measuring grid
lengths of 6, 10, 20 and 50 mm were applied with superglue X60 precisely in the middle of each test specimen.
Encapsulated for added durability, the measuring grid
is formed by etching constantan foil, which is then completely sealed in a carrier medium composed of polyimide film.
The KFG gauges' measuring grid
is formed by etching Constantan foil and then completely sealing it in a polyimide film.
Add the appropriate amount of Foreplay, or another sex toy cleaner (the bottle is usually labeled with a handy measuring grid
), and swirl the mix around with your utensil.
Available in grid lengths of 2 mm and 5 mm as well as in different versions, such as linear, T (with two measuring grids
) or R (with three measuring grids
) rosettes, depending on the application's requirements, the KFU strain gauges are also available with temperature responses matched to steel, austenitic steel, and aluminium.