vidicon tube

collector current is the base current change of β times, That is, the current change is amplified by the β-fold, so we call β the magnification of the transistor (β is generally far greater than 1, for example, dozens of, hundreds of). If we add a small change of signal between the base and the emitter, this will cause the base current IB to change, and the IB changes are amplified, resulting in large changes in the IC. If the collector current IC is flowing through a resistor R, then u=r*i can

Question link: http://acm.hdu.edu.cn/showproblem.php? PID = 1, 5090 Problem descriptiontom and Jerry are playing a game with tubes and pearls. The rule of the game is: 1) Tom and Jerry come up together with a number K. 2) Tom provides n tubes. Within each tube, there are several pearls. The number of pearls in each tube is at least 1 and at most N. 3) Jerry puts some more pearls into each

: The noise indicators provided by the Operational Amplifier manufacturer usually refer to the noise tested at the operational amplifier input end, including hot noise and flashing noise. The noise inside the operational amplifier is described by an internal equivalent. The operational amplifier can be viewed as an ideal Noisless OpAmp ), A noise voltage source is connected at the same-phase input end of the ideal noise-free operation amplifier, and a noise current source is conn

The power frequency machine is a traditional X-ray equipment that uses 50Hz AC as the power supply of High Voltage Generators. We know that the composition of X-ray machine (or X-ray equipment) can be roughly divided into two parts: X-ray Generator (X-ray source) and auxiliary equipment. The following discussion will confuse the x-ray machine with the X-ray generator without distinction. High-voltage power supplies of power frequency X-ray machines are generally in the form of single-phase self

HDOJ 5090 Game with Pearls bipartite graph matching, hdoj5090 Simple Bipartite Graph Matching: The number of edges at each position can be the number of connected edges. Game with Pearls Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission (s): 122 Accepted Submission (s): 85 Problem DescriptionTom and Jerry are playing a game with tubes and pearls. The rule of the game is: 1) Tom and Jerry come up together with a number K. 2) Tom provides N tubes.

reading quality and service life of the laser head, but also affects the precision of various mechanical components in the optical drive. Therefore, it is particularly important to keep the optical drive clean.For the mechanical parts of the optical drive, the cotton swab alcohol can be used to wipe, but the laser head can not use alcohol and other detergents, you can use the airbag at the laser head to blow off the dust.As we can see from the above, dust is the "killer" of the laser head, but

Simple two-part graph matching:Each position can be edged to these numbers and can even beGame with PearlsTime limit:2000/1000 MS (java/others) Memory limit:65536/65536 K (java/others)Total submission (s): 122 Accepted Submission (s): 85Problem Descriptiontom and Jerry is playing a game with tubes and pearls. The rule of the game is:1) Tom and Jerry come up together with a number K.2) Tom provides N tubes. Within each tube, there is several pearls.

Problem Descriptiontom and Jerry is playing a game with tubes and pearls. The rule of the game is:1) Tom and Jerry come up together with a number K.2) Tom provides N tubes. Within each tube, there is several pearls. The number of pearls in each tube are at least 1 and at most N. 3) Jerry puts some more pearls to each tube. The number of pearls put into each

-moduleFigure 2-3-1 Diagram of the method for adding a sub-circuitB. Add PinsFigure 2-3-2 Sub-circuit pin add diagram Three, the circuit general design ideaFigure 3-1 Schematic diagram of the total circuit designFirst of all the functions of the digital clock: There is a clock display, timing, stopwatch, perpetual calendar, fixed time and alarm clock altogether 6 functions, so the switching circuit to reserve more than 6 function switching items. (Toggle key set to "=")Secondly, for the digital

Original reproduced from: http://www.soft6.com/tech/5/54287.htmlThis paper introduces the application of Siemens MES core product simatic IT historian Real-time database and client tool in process production. The application project, known as the "Filament tube control system", historian as a bridge, connecting the PCS7 control system down and connecting the ERP up. As the local application content of MES, it has obvious effect and good effect.1. Proj

turned off" );}} Public Class Tubelight: Light { Public Override Void Turnon () {console. writeline ( "Tube light is turned on" );} Public Override Void Turnoff () {console. writeline ( "Tube light is turned off" );}} Public Class Lightsimplefactory { Public Light create ( String Lighttype ){ If (Lighttype = "Bulb" ) Return New Bulblight (); Else If (Lighttype = "

Fiber Cabling Considerations: 1. Clean brush and try to pass. Before laying the optical cable, should Yukong brush clean and try to pass each paragraph. The use of autocratic brush cleaning tools, after cleaning the application of test rods for test pass inspection. Plastic pipe diameter should be 1.5 times times the diameter of the optical cable. When two or more sub tubes are placed in a cement pipe hole, the equivalent total outer diameter of the sub tub