First of all, we should have
a more comprehensive understanding of all aspects of the tested object.
It
mainly includes: the properties of the tested object, whether it is condensable
gas or non condensable gas, whether it is single or mixed, inert gas or active
gas or corrosive gas; Whether the air flow state is steady or instantaneous,
whether it is uniform or non-uniform; Whether the temperature is isothermal or
non isothermal, high temperature or low temperature; Whether there are special
conditions such as magnetic field, electric field, vibration, impact,
acceleration, charged particles, radiation, etc.
Secondly, according to the
situation of the tested object and the research purpose, correctly select the
vacuum gauge, and need to understand the principle, range and limitations of the
selected vacuum gauge, so as to use the vacuum gauge correctly.
Third, we
should understand the interaction between the vacuum gauge and the measured
object.
The principles of various vacuum gauges are different, and its
introduction may cause changes in some states of the measured object; At the
same time, the gas in the measured object may also affect the vacuum gauge,
change its performance and interfere with its work.
Moreover, when
introducing the technical characteristics of vacuum measurement, fozhen has
mentioned that the measurement accuracy of vacuum measurement is not high due to
many influencing factors and difficult to control. Therefore, in order to carry
out ideal vacuum measurement, we must fully understand the above-mentioned
problems, so as not to cause greater errors or errors.
Vacuum pump and vacuum generator are widely used in pharmaceutical and food industry
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