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The method of calculation of kA coefficient needed for calculation of polarizability tensor components α[równoległa] and α(prostopadła] of liquid crystal molecule is presented. Having a refractive indices ne and no, density d, molecular weight M and kA we can calculate the polarizability anisotropy (α[równoległa]-α[prostopadła]), polarizability tensor components α[równoległa]1, α[prostopadła]1 and...
Polarizability tensor of liquid crystal molecule αII and α⊥ and can be written as sum of two tensors. The first one is connected with the change of distance between electron proton at the atoms of molecule with temperature and the second with the conformation change of molecule. The tensor of electron proton distance change is only the linear function of temperature. In this work the polarizability...
Polarizability tensor of liquid crystal molecule αII and α⊥ can be written as sum of two tensors. The first one is connected with the change of distance between electron proton at the atoms of molecule with temperature and the second with the conformation change of molecule. The tensor of electron proton distance change is only the linear function of temperature. In this work the polarizability tensor...
This article is devoted the elaboration a new method of solution of liquid crystal creation problem. Author found the new expression Σ(ri)² which of temperature dependence can help us to answer on this question. The Σ(ri)² has a maximum value for Tc crystallization temperature and minimum value for To transition temperature for liquid state. Liquid having a liquid crystalline properties must to have...
The refractive index is function of temperature and light wave length. In this article it was verified how the light wave length influence on the values of polarizability tensor components αII, α⊥ and polarizability anisotropy (αII - α⊥) of liquid crystal molecules. It is connected with the dispersion phenomena. The big influence of wave length was observed in the case of mentioned above quantities...
Two phenomenon influence temperature dependence of components of polarizability tensor. The first one the change of distance between electron proton with temperature. The second is the conformation change of molecule. From the two reasons mentioned above the electron proton distance change is only the linear function of temperature. It gives the possibility of separation of two part of αII and α ⊥...
Two phenomenon influence on the temperature dependence of component of polarizability tensor. First one is the change of distance between electrons and protons with temperature. The second is the conformation change of molecule. From the two reasons mentioned above the electron proton distance change is only the linear function of temperature. It gives the possibility of separation of two part of...
The refractive index is function of temperature and light wave length. In this article it was verified haw the light wave length influence on the values of polarizability tensor components αII , α⊥ and polarizability anisotropy (αII - α⊥) of liquid crystal molecules. The big influence of wave length was observed in the case of mentioned above quantities. It was confirmed that the order parameter S...
Two phenomena influence the temperature dependence of the components of the molecule polarizability tensor. The first one is the temperature change of distance between electrons and protons. The second one is the conformation change of a molecule. From the first reason the electron proton distance change is the linear function of temperature. It gives a possibility of separation of two parts of a/i...
W artykule (który był przedmiotem referatu na IV Sympozjum "Pomiary i sterowanie w procesach przemysłowych", Zielona Góra, grudzień 1999 r.) przedstawiono produkowane w OBR ME "METROL" mierniki typu MPS i MPS7, które można zaliczyć do przyrządów realizujących wieloparametrowe pomiary wielkości elektrycznych w obwodach sieci elektroenergetycznych. Opisano ich podstawowe dane techniczne...
Lightning is a discharge connected with a large difference of potentials. Although it is a common phenomenon in nature, it is not quite understood up to now. The article is devoted to the explanation of the cloud electrification based on the novel theory of electrification by friction. The author studying the polarizability tensor of liquid crystal molecules confirmed that the two kinds of atoms could...
Two phenomenon influence on the temperature dependence of component of polarizability tensor. First one is the change of distance between electrons and protons with temperature. The second is the conformation change of molecule. From the two reasons mentioned above the electron proton distance change is only the linear function of temperature. It gives the possibility of separation of two part of...
Two phenomena influence the temperature dependence of components of polarizability tensor. The first one is the change of distance between electrons and protons with temperature. The second is the conformation change of molecule. From the two reasons mentioned above the electron proton distance change is only the linear Junction of temperature. It gives the possibility of separation of two part of...
The temperature dependence of the polarizability anisotropy (αII-α⊥) and polarizabilily tensor components αII and α⊥ were investigated for homoloque of CH3CH2OC6H4N:N-C6H4OC(:O)(CH2)nCH3 liquid crystals, (series of nematogenic 4-ethoxy-4'-n-alkanoyl-oxyazobenzenes), whose molecules differ by the number of CH2 group in the alkyl chain. It was found that: (1) a change in the number of CH2 group in the...
In this work the new method of calculation of polarizability tensor components and (α II - α ⊥) is introduced and applied to four liquid crystals: cholesteryl propionate, nonanoate, decanoate and myristate. Polarizability tensor components of α II and α ⊥ seems to be non-linear function of temperature. Result of subtraction of (α II - α ⊥) for all four liquid crystal are nearly constant in all of...
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