P.O. Box 2684
03001 Vilnius, Lithuania
Phone: +370-5-2651474
Fax: +370-5-2651483
E-mail: [email protected]
Manufacturer of Opto-Mechanical equipment for research, industry and education
http://www.standa.lt
14
3.
Management of the system
3.1 Main principles
After completing the assembly of the system and once the table has emerged, minor changes
may be introduced based on individual requirements for the system. These adjustments include
parameters such as air pressure in the system, position of the level control lever, and setting of the
needle valve.
Warning
After the table has emerged, the space between the table and the support may become a
zone of danger.
Any object present in this zone may be squeezed in the case of changes in the load on the
table or in the pressure, which can result in injuries.
3.2 Adjustment of parameters of the system
If a load has a high weight centre, the table may start to oscillate. In this case, you need to reduce
the pressure in the system and close the needle valve. This will improve the stability of the table. The
empirical rule to determine the height of the weight centre is shown in fig. 13. The system can be in
three different modes –
stable
,
may be stable
and
unstable
, depending on the position of the weight
centre. If the overall weight centre is outside of
stable
and
may be
stable areas, the system will lack
stability.
Fig. 13. Empirical rule for the determination of the height of the weight centre
