Results 291 to 300 of about 152,699 (329)
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1994
Devices in which phosphors are excited by means of cathode rays have great practical importance: cathode-ray tubes are used for television, oscilloscopes, electron microscopes, etc. Cathode rays are a beam of fast electrons; the accelerating voltage in a television picture tube is high (> 10 kV).
G. Blasse, B. C. Grabmaier
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Devices in which phosphors are excited by means of cathode rays have great practical importance: cathode-ray tubes are used for television, oscilloscopes, electron microscopes, etc. Cathode rays are a beam of fast electrons; the accelerating voltage in a television picture tube is high (> 10 kV).
G. Blasse, B. C. Grabmaier
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Proceedings of the Physical Society of London, 1922
The paper draws attention to three commercial forms of cathode-ray oscillograph which may be employed in the study of very high-frequency alternating or impulsive electrical phenomena.The behaviour of a stream of cathode rays in electrostatic and magnetic fields is first dealt with, and the penetrating power of cathode rays through matter is considered
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The paper draws attention to three commercial forms of cathode-ray oscillograph which may be employed in the study of very high-frequency alternating or impulsive electrical phenomena.The behaviour of a stream of cathode rays in electrostatic and magnetic fields is first dealt with, and the penetrating power of cathode rays through matter is considered
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Journal of Applied Physics, 1939
The bunching of cathode rays in the klystron, described in this Journal by R. H. Varian and S. F. Varian, is treated mathematically here, and is found to result in a current having a wave form with sharp peaks and containing strong higher harmonics.
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The bunching of cathode rays in the klystron, described in this Journal by R. H. Varian and S. F. Varian, is treated mathematically here, and is found to result in a current having a wave form with sharp peaks and containing strong higher harmonics.
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1968
The modern cathode-ray oscilloscope is designed as a measuring instrument, and is the most useful of all electronic test devices. So great is its versatility that workers in every branch of scientific activity now find the instrument to be almost indispensable.
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The modern cathode-ray oscilloscope is designed as a measuring instrument, and is the most useful of all electronic test devices. So great is its versatility that workers in every branch of scientific activity now find the instrument to be almost indispensable.
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2013
The study of the passage of electricity through gases had lagged behind the corresponding study on metals and liquids. Faraday himself had engaged in research on electrical discharges in gases as early as 1838 but was hampered by the inefficiency of his vacuum pumps.
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The study of the passage of electricity through gases had lagged behind the corresponding study on metals and liquids. Faraday himself had engaged in research on electrical discharges in gases as early as 1838 but was hampered by the inefficiency of his vacuum pumps.
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1999
After this chapter you should be able to explain how a cathode ray gun works know how electron beams may be deflected know how a time base circuit is used understand how a cathode ray oscilloscope, (CRO), can be used as a timer be able to explain both vertical and horizontal deflections in a CRO know how an a.c.
Martin Harrison, Frank McKim
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After this chapter you should be able to explain how a cathode ray gun works know how electron beams may be deflected know how a time base circuit is used understand how a cathode ray oscilloscope, (CRO), can be used as a timer be able to explain both vertical and horizontal deflections in a CRO know how an a.c.
Martin Harrison, Frank McKim
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2002
A cathode ray tube comprising an electron source and an electron beam guidance cavity (220) having an input aperture (208) and an output aperture (223), wherein at least a part of the wall of the electron beam guidance cavity near the output aperture comprises an isolating material having a secondary emission coefficient 1 for cooperation with the ...
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A cathode ray tube comprising an electron source and an electron beam guidance cavity (220) having an input aperture (208) and an output aperture (223), wherein at least a part of the wall of the electron beam guidance cavity near the output aperture comprises an isolating material having a secondary emission coefficient 1 for cooperation with the ...
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1989
A CRT pre-production unit was established at the Laboratories, led by R. Harvey who pre-war had been engaged on work in the Heat Laboratory, to produce quantities of tubes to Wembley design. In addition the Ministry of Aircraft Production set up a shadow factory at Shaw, Manchester, managed by GEC, at which production of CRTs was led by D.P.
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A CRT pre-production unit was established at the Laboratories, led by R. Harvey who pre-war had been engaged on work in the Heat Laboratory, to produce quantities of tubes to Wembley design. In addition the Ministry of Aircraft Production set up a shadow factory at Shaw, Manchester, managed by GEC, at which production of CRTs was led by D.P.
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