Wuhan Questt Asia Technology CO.,LTD
Wuhan Questt Asia Technology Co., Ltd Address:
A7-101, Hangyu building, Wuhan University Sci & Tech Park, East
Lake High-tech Dev. Zone, Wuhan, Hubei, China
Tel: 00862787611146 Fax: 00862759908808 Http://www.questt.com.cn; Email:[email protected]
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German Technology | Made in China
More attention must to be paid to the two ends of the Xenon lamp during the changing:
(1) Turn off the system, close the water and discharge the remain charges in the energy
store capacitance;
(2) Unload the electrode of the lamp;
(3) Remove the top of the lamp, draw out the Xenon lamp carefully beside the reflecting
mirror;
(4) Clean the cover tube with the cotton and the cleaning liquid;
(5) Verify the size of the Xenon lamp;
(6) Insert the lamp in the cavity, close the top and mount the electrode;
(8) Check the water leaking;
(9) Turn on the main power supply to check the discharge;
(10) Check the laser output power by using the single pulse mode. If the laser output
power can not meet the requirement, the resonator need to be re-adjusted repeatedly;
(11) Close the laser cover.
6. Nd
3+
:YAG rod
Nd
3+
: YAG rod is the core of the laser, it must be very careful to handle the rod during the
installation and the using. The two end of the rod must be keep parallel strictly. If there is
dirtiness on the two end surface, it has to clean the room firstly, then ask the professional
service people to handle the rod. Take out the Nd
3+
: YAG rod, clean it by lens paper and
cleaning liquid. The reasons of the rod damage may be the followings:
a. The flow of the cooling water is low or the water hose is blocked. It lead to an overheat in the
lamp and the laser rod.
b. The end surface is damaged by something hard.
c. The coated end surface is burned out because of the dirtiness on the surface.
d. The strong and uneven stress from the installation of the rod breaks the laser rod. So, usually,
the operator can not open the laser cover and can not touch the YAG rod. If there is dirtiness on
the end surfaces of the YAG rod, it has to be handled by the professional service people.
7. Maintenance of condenser cavity
The condenser cavity is ceramic cavity imported from UK, which has very high reflectivity. It is
free of maintenance but never allowed to take apart.
8. The protection of high voltage
To start the laser, there are three voltages applied to the Xenon lamp. They are the triggering
voltage: about 15~20kV; the pre-igniting voltage: about 1.7kV~2kV and the arc discharge
voltage: about 500~1900 voltage. It must keep at least 15mm distance with the surrounding
component. During the operating, the insulating board must be clean and dry to prevent short-
circuit of the high voltage.
B. Laser Power
1. Specification
The laser power supply in this system is pulse mode power supply. The IGBT is supplied
by the L-C resonating charging and the energy storing circuit. The control circuit has two SCM
as the core. So the output power and the repeatability can be adjusted conveniently. The power
