![]() The amplitude and frequency of the signal displayed on the screen depends on the voltages on vertical and horizontal deflection plates respectively. The emitted electrons is then accelerated towards the screen and strikes on the fluorescent screen, due to its fluorescent properties it glow s when electron strikes on it. The positive low voltage supply is from + 300 to 400 V and t he negative high voltage supply is from -1000 to -1500 V.ĭ epicting the cathode ray tube which emits electrons from the ( filament ) cathode. There are two power supplies, a negative High Voltage (HV) supply which is required for filament and a positive Low Voltage (LV) supply for other circuitry then filament. In this phenomenon the charge particle are emitted by the filament when it is heated by supplying a high negative voltage. It is also known as thermal electron emission. part of his work on high frequency alternating currents. Karl Braun demonstrated the model of first oscilloscope in 1897, while working on the high frequency AC current. Karl Braun used the cathode ray tube as an electron gun with a fluorescent screen which emit flash of light which electronic strike on it and built the first oscilloscope called Braun’s electro meter. He worked as assistant Professor at Wurzburg University. In this graduated the topic of his research is the oscillations of elastic strings. Karl Ferdinand Braun born on June 6 1 850, he educated at the local “Gymnasium”. It comprises of a cathode-ray tube (CRT), and input circuitry for focusing and amplification. It can measure various quantities such as peak voltage, frequency, phase difference, pulse-width, delay time, rise time, and fall time. ![]() Shaheed Rajguru College of Applied Sciences for Women, University of Delhi.ĬRO is a basic instrument employed for the study of several types of waveforms. Project Investigators: Dr Sneha Kabra, Dr Amita Kapoor, Ms Himani Dua, ![]() ![]() Mridula Gupta, Department of Electronics, South campus. Development of e-resource on standard procedure of operation and applications of important Electronic devices used by undergraduate science students. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |