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Electrical Definitions |
Dielectric Fatigue : Resistance to breakdown decreases after prolonged application of high voltage stress across the dielectric. |
Dielectric Heating : The heating of an insulating material by an ac field. The principle is used in Microwave Ovens. |
Dielectric Isolation : A method of isolating individual regions in an integrated circuit,particularly a bipolar integrated circuit,by surrounding the region with insulating material rather than with isolating diffusions. |
Digital Electronics : A field of electronics wherein devices operate on the basis of discrete numerical techniques in which the variables are reprsented by coded pulses or state. |
Digital Computer : An electronic calculating and data processing machine which works with instructions and data coded in simple binary digit form. |
Digital Paper : Digital Paper is a flexible optical recording medium from a sandwich of thin polymer films.It is similar material used in computer tapes but data is written by a laser. |
Digital to Analog Converter : A device that converts a binary input to an analogue output. |
Digitron : Type of cold cathode scaling tube that has several cathodes shaped into the form of characters. |
Diode : Any electronic device that has only two electrodes. |
Diplexer : A device which enables a transmitter and a receive to be used with same antenna. |
Directional Coupler: A transmission coupling device for sampling for measurement or exciting an incident or reflected wave in a waveguide or any transmission line such as microstrip,coaxial cable etc. |
Directional Radio-communication: Radio communication,in which the waves are defined as nearly as possible to the direction between the transmitting and receiving stations. |
Dissipation Factor: The relation between conductivity and permittivity of a dielectric at a given frequency.It is also called Q factor. |
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