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Firstly, we need to understand how bubbles in the cooling water can be
formed. Generally the formation of bubbles results from the improper
design of pipeline inside the water chiller.
Please allow me to make a brief analysis on the influence of bubble formation on the precision laser:
1.As heat cannot be absorbed by bubbles in the pipe, it would lead to
the uneven heat absorption by water and thus cause the improper heat
dissipation of the equipment. Then heat will be accumulated in the
equipment during the operation, and the severe impact force generated
when bubbles are flowing in the pipe will cause cavitation erosion and
vibration on the internal pipe. In this case, when laser crystal
operates under strong vibration condition, it will lead to crystal
faults and more light extraction optical loss to shorten the service
life of the laser.
2.The continuous impact force imposed by something like medium material
that has been formed by bubbles on the laser system will bring about
oscillation to some extent, which would consequently give rise to a
hidden danger to the laser. Moreover, the UV, green and fiber lasers
have strict requirements on water cooling. As the service life of the
embedded chip is closely related to the water pressure stability of the
circulating cooling water, the oscillation caused by bubbles will
significantly reduce the service life of the laser.
Warm tips about S&A water chiller: The correct start-up sequence for
the operation of laser with water chiller: Firstly, turn on the water
chiller and then activate the laser. This is because that if laser is
activated before the start-up of the water chiller, the operating
temperature (It's 25-27℃ for ordinary lasers) might not be achieved
immediately when the water chiller is started up and this will certainly
affect the laser.
For the cooling of precision laser, please choose S&A CWUL-10 water
chiller. With a reasonable piping design, it can significantly prevent
the formation of bubbles to stabilize the light extracting rate of laser
and extend the service life. Therefore it can facilitate the users to
save the cost.
CONTACT S&A
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In the previous case about the application of CWUL-10 water chiller,
we've mentioned that bubbles in the cooling water of water chiller will
affect the precision laser. Then what kind of influence would it be?