THORLABS LCC25, Руководство по эксплуатации

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Liquid Crystal Controller
18828-D02 Rev F, Sept 23, 2011 Page 6 www.thorlabs.com
Figure 2: A 2 kHz Square Wave Output with 150 Hz Modulation
The LCC25 will automatically detect and correct any DC offset in real time to within ±10
mV. This feature increases the life of the liquid crystal device.
The device can be controlled using tactile buttons on the front panel to select the voltage
and frequency and then using the knob to adjust the levels. The system’s display is a
16 x 2 LCD which displays the voltages and frequency (see figure 3). There are two BNC
connectors. The top BNC is the external input and allows the user to input an external
modulation frequency square wave up to 5 volts. The bottom BNC is the system output.
Figure 3: Front Display
The LCC25 may also be controlled by a command line language through the USB port.
This is offered to enable operation through a terminal interface or for those who may
want to write their own program to control the unit.