making it emit light‚ usually green or blue. This is similar to the way a television picture is produced. Oscilloscopes contain a vacuum tube with a cathode (negative electrode) at one end to emit electrons and an anode (positive electrode) to accelerate them so they move rapidly down the tube to the screen. This arrangement is called an electron gun. The tube also contains electrodes to deflect the electron beam up/down and left/right. The electrons are called cathode rays because they are emitted
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background. These were known as monochrome monitors and they did not use to have high quality displays. The displays that we see on the monitors are caused by the electrons directed on a phosphor coating on the screen by the cathode gun of the picture tube. To put it simply‚ the computer monitor comprises of a display device along with the circuitry required to form a display using the signals sent by an external source. The computer monitor receives the signals sent by the CPU of the PC and displays
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earliest moving silhouette images on June 14‚ 1923. In 1927 philo Farnsworth made the first working TV with electric scanning that could both pickup and display devices. German scientist‚ Karl Braun invented the cathode ray tube oscilloscope (CRT) in 1897‚ and which is the picture tube found in modern TV sets. In December 17‚ 1953 RCA designed the first successful color television. In the
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Electronic Display System Contents • Electronic Flight Information Systems (EFIS) • Primary Flight Display (PFD) • Navigational Display (ND) • Engine Indication and Crew Alert System (EICAS) • Cathode Ray Tube (CRT) • Liquid Crystal Display (LCD) • Light Emitting Diode (LED) Electronic Flight Information System • An Electronic Flight Information System (EFIS) is a flight deck instrument system in which it uses electronic to display instead of electromechanical. • The Electronic system display
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be used by any electronics hobbyist but not everyone can afford to have one. As commercial scopes are often too expensive‚ almost every electronics hobbyist thought at a certain time to build one from scratch. The classical oscilloscope (cathode ray tube) is difficult to build at home because of its size‚ mechanical fragility‚ high voltage presence‚ etc. An alternative solution is the modern “PC oscilloscope”‚ having the advantage of post processing and recording capabilities‚ and kind of reduced complexity
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digital record of the amplitude of the signal at each sample time. The sampling frequency should be the Nyquist rate or better to avoid aliasing. These digital values are then turned back into an analogue signal for the display if this is a cathode ray tube (CRT) or otherwise transformed as needed for the various possible types of output. The two types of D.S.O that we used were: 1: A High frequency wave generator 2: A Low frequency wave generator • Resistance decade boxes A resistance decade
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the limit of the material’s ability to resist tearing. As the tube is bent over a specific radius the outside wall will stretch in tension while the inside wall bends under compressive forces. The boundary line through the centre of the tube‚ between the tension and compressed zones is called the ’neutral axis’. The ’neutral axis’ is the location from which all dimensional calculations are made. WHY HYDRAULIC PIPE BENDING M/C Tube bending can be done manually‚ semi-automatically‚ with CNC equipment
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use two types of video output ports‚ VGA port (analog) and DVI port (digital). In addition an S-video port might be equipped as an output for the TV. There are two types of monitors on the market today‚ CRT and LCD. CRT Monitors or Cathode Ray Tube uses a tube similar to old television screens. CRT Monitors contain an electric charged storage capacitor‚ deadly if touched. LCD Monitors or Liquid Crystal Display uses TFT technology or Active Matrix. There are several specifications to conceder when choosing
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Seeing‚ Hearing‚ and Printing Data 1. This type of monitor is common on desktop computers. It looks much like a standard television. A) cathode-ray tube B) flat-panel C) monochrome D) projector 2. Monitors use various intensities of __________ colors to generate the rainbow. A) 16 B) 16 million C) three D) four 3. The __________ helps to align the electron guns. A) pixel B) shadow mask C) resolution D) refresh 4. LCD monitors often have a smaller __________ than CRT monitors. A) refresh rate B)
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APPLICATIONS OF MICROPROCESSOR 8086 ON OUTER PERIPHERALS Vishal Dahuja B.Tech. - CSE RC1701A’29’ Reg. No # 1050070024 vishaldahuja@gmail.com 1. INTRODUCTION The 8086 microprocessor is the 16 bit microprocessor which means that the arithmetic logic unit‚ its internal registers and also the data bus these entire have to work with 16 bit at a time. The microprocessor has 20 bit address bus and therefore 220 memory locations. The pin diagram of 8086 is as shown: The 8086 microprocessor is just like
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