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Filtering by: Language English [eng] Subject Oscillators, Crystal

The conductivity of lead oxide doped potassium chloride single crystals

Creator:

Knepp, Donald Jack

Abstract:

A comparison was made of the d.c. conductivity of KCI:Pb²⁺ and KCl:PbO single crystals at temperatures greater than 325°C. The energy of activation was 0.72 ev for all crystals. Lead concentration was determined by chemical, optical and electrical methods. The half band width of the UV absorption band at 273...

Resource Type:

Masters Thesis
An ultra low power frequency reference for timekeeping applications

Creator:

Oporta, Hector Ivan

Abstract:

An ultra low power crystal oscillator that provides a frequency reference for battery powered timekeeping applications is presented. An amplitude control circuit is employed to ensure that minimum current is consumed. A subthreshold voltage regulator provides a supply voltage for the oscillator with minimum current consumption. The oscillator and regulator...

Resource Type:

Masters Thesis