Lab
RAM II Jacketed Vessel Users’ Manual
DEFINITIONS
Resodyn Acoustic Mixers, Inc.
4
010320
2
Definitions and Abbreviations
Acceleration:
A change in velocity with respect to time that is expressed in “
g
.”
Different mix media mixes at different accelerations, based on the
material and the expected results,
Damping:
A term to quantify the instantaneous amount of energy absorbed by the
mix media while mixing.
g
:
A measure of acceleration expressed as a multiple of the gravitational
acceleration applied to the vessel and mix media during mixing. For
example, 10
g
is 10 times the force of gravity. It may also be shown as
g
or
g
’s. Another term that may be used to describe the acceleration is
“gravities.”
Headspace:
The volume of compressible air, gas, or void space above the mix
media in the vessel that is not occupied by the mix media.
Mixing Media:
Defined as the liquid or solid material inside the mixing vessel.
Mixing Power:
The amount of power being delivered by the RAM system to perform
mixing.
Mixing Regime: Specific modes of mixing. For example, a fluid will change regimes as it
undergoes changes in acceleration, from an incompressible liquid
containing few headspace bubbles, to a fluid that is fully integrated with
the compressible headspace such that the two are indistinguishable
from each other.
PTFE:
Polytetrafluoroethylene, also known as Teflon
TM
RAM:
ResonantAcoustic
®
Mixing or ResonantAcoustic
®
Mixer.
Resonance:
The frequency (nominally 60 Hz) at which the system operates in the
most efficient manner.
RTD:
Resistance Temperature Detector used to measure the temperature of
processing materials
Service Loop:
A gradual arc in lines and cables connected to the Jacketed Vessel to
accommodate the vertical movement of the LabRAM II mixing platform
during operation.
SS:
Stainless Steel
Vacuum:
Internal vessel pressure that is less than atmospheric pressure. (If
using vacuum in combination with heating/chilling, please refer the
appropriate Resodyn Vacuum System Manual, or other vacuum utility
in use for processing.)
