MECH373-Final-2010-F-QES
... A vibration survey has been carried out on a bearing structure of a variable speed compressor in a gas pipe-line. The compressor has an operating speed range from 0 to 10000 rpm. At 6000 rpm, it is found that there are major resonance frequency components after the recorded data have been analyzed u ...
... A vibration survey has been carried out on a bearing structure of a variable speed compressor in a gas pipe-line. The compressor has an operating speed range from 0 to 10000 rpm. At 6000 rpm, it is found that there are major resonance frequency components after the recorded data have been analyzed u ...
Ami Pro - EUMC-DEF.SAM
... to set up one common gate voltage while changing drain voltages individually, or to change both drain and gate bias voltages individually. Of those, we have selected the first possibility. The oscillator built is depicted at Fig. 3. Drain voltage, common to all transistors, has been supplied through ...
... to set up one common gate voltage while changing drain voltages individually, or to change both drain and gate bias voltages individually. Of those, we have selected the first possibility. The oscillator built is depicted at Fig. 3. Drain voltage, common to all transistors, has been supplied through ...
In Powerpoint
... Double heterojunctions are useful to trap a lower bandgap material (where the lasing or LED action takes place) between two higher bandgap materials. The spectral width (of a laser or LED) is less of an issue in free-space-communications (compared to fiber communications) because the refract ...
... Double heterojunctions are useful to trap a lower bandgap material (where the lasing or LED action takes place) between two higher bandgap materials. The spectral width (of a laser or LED) is less of an issue in free-space-communications (compared to fiber communications) because the refract ...
MO461
... vessel. The upper end-point energy of the x-ray energy spectrum corresponds to the peak-gap voltage from which the electric field levels can be extrapolated. Sets of these data ...
... vessel. The upper end-point energy of the x-ray energy spectrum corresponds to the peak-gap voltage from which the electric field levels can be extrapolated. Sets of these data ...
solution
... 1. An electron is released at the negative plate of a parallel plate capacitor and accelerates to the positive plate (see the drawing). (a) As the electron gains kinetic energy, does its electric potential energy increase or decrease? Why? (b) The difference in the electrons electric potential energ ...
... 1. An electron is released at the negative plate of a parallel plate capacitor and accelerates to the positive plate (see the drawing). (a) As the electron gains kinetic energy, does its electric potential energy increase or decrease? Why? (b) The difference in the electrons electric potential energ ...
Review problems
... 14. The switch S is initially at position b for a long time. It is then switched to position a. Describe what happens to the light bulb as a function of time when the switch is flipped from b to a? A) The light bulb was on but goes off immediately. B) The light bulb was off and stays off. C) The li ...
... 14. The switch S is initially at position b for a long time. It is then switched to position a. Describe what happens to the light bulb as a function of time when the switch is flipped from b to a? A) The light bulb was on but goes off immediately. B) The light bulb was off and stays off. C) The li ...
PHYS 241 EXAM #2 November 9, 2006
... 8. ( 5 points) An electron passes through a region where there is an electric field E = 4.0 x105 V/m and the magnetic field B = 0.090 T. The directions of the electric field, the magnetic field, and the electron velocity are mutually perpendicular. If the electron is not deflected from its straight- ...
... 8. ( 5 points) An electron passes through a region where there is an electric field E = 4.0 x105 V/m and the magnetic field B = 0.090 T. The directions of the electric field, the magnetic field, and the electron velocity are mutually perpendicular. If the electron is not deflected from its straight- ...
Electrostatic Applications
... Some of the metallic materials contain flake which is conductive--like aluminum. Conductive flake supports the flow of electrons decreasing tip voltage and T.E. Metallics are more conductive at higher voltage than lower-measurement of conductivity with the meters will not work due to the low voltage ...
... Some of the metallic materials contain flake which is conductive--like aluminum. Conductive flake supports the flow of electrons decreasing tip voltage and T.E. Metallics are more conductive at higher voltage than lower-measurement of conductivity with the meters will not work due to the low voltage ...
The applied field potential (E, volts) of electromagnetic radiation is
... path to the control circuits . unhealthy -even deadly- for humans, it is just what the magnetron tube needs to do its job -that is, to dynamically convert the high voltage in to undulating waves of electromagnetic cooking energy. The microwave energy is transmitted into a metal channel called a wave ...
... path to the control circuits . unhealthy -even deadly- for humans, it is just what the magnetron tube needs to do its job -that is, to dynamically convert the high voltage in to undulating waves of electromagnetic cooking energy. The microwave energy is transmitted into a metal channel called a wave ...
RiverbeckConfPaper160516
... of media signals is particularly attractive to multi-dwelling units where any TV or radio channel can be demanded by any dwelling. This requires the entire signal bandwidth be provided to all dwellings. A fibre system reduces the infrastructure cabling, is immune to electrical interference, suffers ...
... of media signals is particularly attractive to multi-dwelling units where any TV or radio channel can be demanded by any dwelling. This requires the entire signal bandwidth be provided to all dwellings. A fibre system reduces the infrastructure cabling, is immune to electrical interference, suffers ...
VIGI-Lux IR Illuminator MVS 5760 Series
... ©2006 Excelitas Technologies Corp. All rights reserved. The Excelitas logo and design are registered trademarks of Excelitas Technologies Corp. VIGI-Lux is a trademark of Excelitas Technologies Corp. or its subsidiaries in the United States and other countries. All other trademarks not owned by Exce ...
... ©2006 Excelitas Technologies Corp. All rights reserved. The Excelitas logo and design are registered trademarks of Excelitas Technologies Corp. VIGI-Lux is a trademark of Excelitas Technologies Corp. or its subsidiaries in the United States and other countries. All other trademarks not owned by Exce ...
Klystron
A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian, which is used as an amplifier for high radio frequencies, from UHF up into the microwave range. Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television transmitters, satellite communication, and radar transmitters, and to generate the drive power for modern particle accelerators.In the klystron, an electron beam interacts with the radio waves as it passes through resonant cavities, metal boxes along the length of the tube. The electron beam first passes through a cavity to which the input signal is applied. The energy of the electron beam amplifies the signal, and the amplified signal is taken from a cavity at the other end of the tube. The output signal can be coupled back into the input cavity to make an electronic oscillator to generate radio waves. The gain of klystrons can be high, 60 dB (one million) or more, with output power up to tens of megawatts, but the bandwidth is narrow, usually a few percent although it can be up to 10% in some devices.A reflex klystron is an obsolete type in which the electron beam was reflected back along its path by a high potential electrode, used as an oscillator.The name klystron comes from the stem form κλυσ- (klys) of a Greek verb referring to the action of waves breaking against a shore, and the suffix -τρον (""tron"") meaning the place where the action happens. The name ""klystron"" was suggested by Hermann Fränkel, a professor in the classics department at Stanford University when the klystron was under development.