Abstract
the design is a system that focus on the control tecnology of water supply for
paper/juice pulp making machine.there is a lack of literature major in this field,so this
is kind of different,and I have to consult so many teachers and friends.the machine is
include sensors for measuring the water supply,the control facilities of water swithse
and the container for water.Its characteristics is the pulp container or arranged on the
hand piece has used for detection of plasma volume (concentration measurement
transformation gravim etric measurements with pairwise serofluid can avoid loss of
concentration probe caused by the damage of the economic benefits, and the method
is simple and convenient) and the detection results feedback to the control device for
controlling device to choose different pulping process of the water level detection
device and water level detecting device of the signal output terminal and the control
device of the signal input end of the electric connection. The control method of the
pulping machine of the invention: water level detecting device to detect the water
level data transmission to the control device, control device to receive the data of
water level and pre stored data for comparative analysis, and draw to join Sheng
slurry vessel within the actual content; control device with the recall of the actual
amount of water corresponding to the pulping process, then adjust the size of the
water, pulping machine began pulping. The pulping machine of the invention can
avoid the defects of the pulping halfway overflow caused by the addition of water
quantity or the small amount of pulping material and the difference of the texture of
the pulp.
The underlying hardware part is the quality measurement module controlled by
single chip microcomputer, which is connected with LabVIEW through serial port,
and the host computer is programmed by LabVIEW to control the interface.
Keywords: vehicle inverters, SPWM, push-pull converter, power switches
