Warianty tytułu
Labmade equipment for exploring liquid crystal twist-effect at the comprehensive school
Języki publikacji
Abstrakty
The paper analyses existing physical experiment, which has been designed and is currently used at a number of higher educational establishments while studying physical properties of liquid crystals. It suggests original labmade equipment used for studying twist-effect in nematic liquid crystals. The paper describes methods for transforming LCD indicator of a Motorola V50, which doesn’t work properly, to get a studying optical cell, apt for exploring twist effect properties in liquid crystal. The article describes twist effect features, on which the work of most LCD data displaying indicators is based. A workshop of a physical laboratory session and methods of its conducting has been worked out. It can be employed at a Physics lesson while teaching liquid crystals to school students. This promotes deeper understanding of physical properties and phenomena on which modern data displaying appliances that function at the base of liquid crystals are grounded. Basic physical parameters of an optical sell filled with nematic liquid crystal of a twist structure have been surveyed. The results of a physical workshop have been arranged in a table and corresponding diagrams, which permitted to define limit voltage of the twist effect in nematic liquid crystals. The technique of creating labmade equipment from available materials in combination with existing equipment of a school physical classroom allows to implement experimental study of the optical characteristics of the twist effect of the liquid crystal. Therefore, the developed lab physical workshop provides the principle of clarity in the study of the physics of liquid crystals in a secondary school and contributes to students’ understanding of the processes occurring in the devices, where the use of modern methods of information display using LCD displays.
Rocznik
Numer
Strony
263-275
Opis fizyczny
Daty
wydano
2016-01-25
Twórcy
autor
Bibliografia
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.desklight-635403b2-4c75-4b3d-a269-421e0493d41d
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