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Academic model of ALCT-PP1
Ferroelectric liquid crystal module
Optional photodetector support
Capable of automatically measuring the bend and splay elastic parameters K11 and K33 and threshold voltage and dielectric constants of both positive and negative nematic liquid crystals
ALCTE-PP1
PRODUCT INQUIRY -
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DESCRIPTION
The ALCTE-PP1 is a low cost version of the ALCT-PP1, available only to academic customers and designed especially for them. This version of the ALCT provides many features in addition to those available to industrial customers, such as a module for the measurement of ferroelectric liquid crystal parameters and optional photodetector support. The ALCTE-PP1 is a USB based instrument which can be connected conveniently to both desktop and laptop computers. The ALCTE-PP1's easy-to-use software allows for the measurement of both positive and negative dielectric nematic liquid crystal materials.
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FEATURES
The range of material parameters measured by the ALCTE-PP1 includes:
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
For FLC (optional):
· Spontaneous Polarization
· Electrical Switching Time
· Optical Switching Time (with additional optional hardware)
· Rotational Viscosity
· Ion Density and Mobility*
· Dielectric Constant
*The minimum current measurement is 1nA. For current measurement down to 10pA, please refer to the IV1.
The ALCTE-PP1 can also be integrated with Instec's microscope thermal stages and temperature controllers.
This enables the user to analyze the temperature dependence of the above parameters.
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SPECIFICATIONS
Output Wave
DC to 2KHz, voltage 0 to ±10V (Optional ±95V)
Output Update Rate
500KHz
Output Resolution
16 bit
Input Resolution
16 bit
Input Sample Rate
2MHz
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 10nF