Biomedical Engineering Reference
In-Depth Information
Fig. 13
Schematic representation of the injection system of the PIMMS
Fig. 14
Four-way valve for switching between ignition and operation pressure. The setting for the
ignition pressure (
left side
) bypasses the capillary loop
transducer directly into the plasma and ionization chambers is possible, it would
further complicate the layout and operation of the system. Therefore, in order to
introduce an appropriate pressure stage, a simplified pressure distribution model is
used (Fig.
15
). This is based on a chamber (plasma or ionization chamber, respec-
tively) with an aperture of cross-sectional area
A
,
through which gas is pumped out.
