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ALCT-PP1 Automatic Liquid Crystal Tester
        Instec’s Automatic Liquid Crystal Testing System for Physical Properties (ALCT-PP1) provides a full range of liquid crystal physical property measurements including splay and bend elastic constants, threshold voltage, and dielectric constants for both positive and negative anisotropic nematic liquid crystal materials. Quick, convenient, small-volume, bench-top measurements are reported to any Windows PC using the USB communication port and can be readily analyzed with the included WinLC software. The ALCT-PP1 is compatible with all Instec LC cells, holders, optical accessories, and temperature control sample stages.
Features
For NLC (Positive Dielectric Anisotropic Material):
· Threshold Voltage
· Splay and Bend Elastic Constants
· ε┴ and ε|| Dielectric Constants
 
For Negative Dielectric Anisotropic Nematic Material:
· Threshold Voltage
· Splay and Bend Elastic Constants
· ε┴ and ε|| Dielectric Constants
Technical Specifications
Output Wave
DC to 2KHz, voltage 0 to ±35V 
Output Update Rate
500KHz
Output Resolution
16 bit
Input Resolution
16 bit
Input Sample Rate
500KHz
Current Measurement Range
1nA ~ 1mA
Current Sensing Resistance
1KΩ, 10KΩ, 100KΩ
Current Resolution
100pA
Post Gain in the ALCT Box
1x, 10x, 100x, 1000x
Capacitance Measurement
2pF to 100nF
Number of Measurement Channels
1 (up to 8 optional)
 
 
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