1 - QSL.net
... 1. A force of repulsion exists between two _________ magnetic poles. A. unlike. B. positive. C. negative. D. like. 2. A permanent magnet would most likely be made from: A. copper. B. aluminum. C. brass. D. steel. 3. The strength of the magnetic field around a conductor in air is: A. inversely propor ...
... 1. A force of repulsion exists between two _________ magnetic poles. A. unlike. B. positive. C. negative. D. like. 2. A permanent magnet would most likely be made from: A. copper. B. aluminum. C. brass. D. steel. 3. The strength of the magnetic field around a conductor in air is: A. inversely propor ...
CONTACTLESS DIAGNOSTICS OF THIN FILM LAYERS Vaclav Papez Stanislava Papezova
... The voltage drop of the measuring coil and the reference coil is a measure of the impedance at themselves. A real part of the coils impedance represents a losing resistance of coils and it matches to the component of the voltage drop, which is in a phase with the exciting current. An impedance incre ...
... The voltage drop of the measuring coil and the reference coil is a measure of the impedance at themselves. A real part of the coils impedance represents a losing resistance of coils and it matches to the component of the voltage drop, which is in a phase with the exciting current. An impedance incre ...
Introduction To Electronic Communication
... For guidance in weapons systems, where the heat radiated from airplanes or missiles can be detected and used to guide missiles to targets. In most new TV remote-control units, where special coded signals are transmitted by an infrared LED to the TV receiver to change channels, set the volume, an ...
... For guidance in weapons systems, where the heat radiated from airplanes or missiles can be detected and used to guide missiles to targets. In most new TV remote-control units, where special coded signals are transmitted by an infrared LED to the TV receiver to change channels, set the volume, an ...
MAE511 FinalReport ASavas ARousing BReimold
... gain and DC offset (see Figure 21 in Chapter C of the Appendix). The operational amplifiers (op-amps) used in this stage are railed to ˘15 V, meaning that the oscilloscope can sample signals within that range (otherwise the sampled signals will be railed). The ability to offset the incoming signal b ...
... gain and DC offset (see Figure 21 in Chapter C of the Appendix). The operational amplifiers (op-amps) used in this stage are railed to ˘15 V, meaning that the oscilloscope can sample signals within that range (otherwise the sampled signals will be railed). The ability to offset the incoming signal b ...
Analysis of System
... sensitivity of silicon photodiodes. Flicker noise is the most dominant source of noise, as it is characterized by its 1/f noise distribution. Hence, the motivation for modulation is to overcome the low-frequency noise content that limits the sensitivity of the photodiodes. Furthermore, we introduced ...
... sensitivity of silicon photodiodes. Flicker noise is the most dominant source of noise, as it is characterized by its 1/f noise distribution. Hence, the motivation for modulation is to overcome the low-frequency noise content that limits the sensitivity of the photodiodes. Furthermore, we introduced ...
Electric Circuit Practice
... possibilities of I2 and I3 values which satisfy this equation. Determining the amount of current in either branch will demand that we use the Ohm's law equation. But to use it, the voltage drop across the branches must first be known. To determine the voltage drop across the parallel branches, the v ...
... possibilities of I2 and I3 values which satisfy this equation. Determining the amount of current in either branch will demand that we use the Ohm's law equation. But to use it, the voltage drop across the branches must first be known. To determine the voltage drop across the parallel branches, the v ...
LT5506
... schematic is shown using a 1:4 transformer. The measured input sensitivity of this board is about –82.6dBm for a 10dB signal-to-noise ratio. In the case of an LC matching circuit, the circuit of Figure 1 can be used. In Table 1 the values are given for a range of IF frequencies. The matching circuit ...
... schematic is shown using a 1:4 transformer. The measured input sensitivity of this board is about –82.6dBm for a 10dB signal-to-noise ratio. In the case of an LC matching circuit, the circuit of Figure 1 can be used. In Table 1 the values are given for a range of IF frequencies. The matching circuit ...
IX Gamma-Gamma Angular Correlation
... The two detectors should be at an angle of 180°. The source should be located at the same height as the center of the detector. Also adjust the position of the source in the plane of the two detectors so that the coincidence counting rate is at a maximum. This is important due to the sharp distribut ...
... The two detectors should be at an angle of 180°. The source should be located at the same height as the center of the detector. Also adjust the position of the source in the plane of the two detectors so that the coincidence counting rate is at a maximum. This is important due to the sharp distribut ...
Implementation of FSK Modulation and
... In telecommunications and signal processing, frequency modulation (FM) is encoding of information on a carrier wave by varying the instantaneous frequency of the wave. Digital data can be encoded and transmitted via carrier wave by shifting the carrier's frequency among a predefined set of frequenci ...
... In telecommunications and signal processing, frequency modulation (FM) is encoding of information on a carrier wave by varying the instantaneous frequency of the wave. Digital data can be encoded and transmitted via carrier wave by shifting the carrier's frequency among a predefined set of frequenci ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... fractionally multiply or scale the voltages such as (3/2, 4/3, 2/3, etc.) and generate arbitrary voltages by quickly alternating between modes depending on the circuit topology. But when charge pump is used in PLL then it can supply positive and negative current pulses into loop filter of PLL. But i ...
... fractionally multiply or scale the voltages such as (3/2, 4/3, 2/3, etc.) and generate arbitrary voltages by quickly alternating between modes depending on the circuit topology. But when charge pump is used in PLL then it can supply positive and negative current pulses into loop filter of PLL. But i ...
Audio level control with resistive optocouplers.
... Frequently in audio mixing it is desirable to fade between one source and another. A standard slider potentiometer can be used for this purpose. Unless the highest quality conductive plastic elements are used, the track rapidly degrades with use, giving rise to contact noise as the wiper is moved. ...
... Frequently in audio mixing it is desirable to fade between one source and another. A standard slider potentiometer can be used for this purpose. Unless the highest quality conductive plastic elements are used, the track rapidly degrades with use, giving rise to contact noise as the wiper is moved. ...
Introduction to MatLab: Circuit Analysis
... • Analogous to the inertial effect of the flow of a fluid. The inductance is the mass that is moving. • Inductor Law V=L*dI/dt (dI/dt is the “rate of change” in the current. This is analogous to velocity.) Introduction to MatLab: Circuit Analysis ...
... • Analogous to the inertial effect of the flow of a fluid. The inductance is the mass that is moving. • Inductor Law V=L*dI/dt (dI/dt is the “rate of change” in the current. This is analogous to velocity.) Introduction to MatLab: Circuit Analysis ...
AC Measurements with the Agilent 54622D Oscilloscope
... other (they have opposite polarities; ZL = jXL and ZC = -jXC ). Above the resonant frequency, XL is increasing and XC is decreasing, which means that the inductor blocks signal above the resonant frequency. The opposite happens below the resonant frequency. ...
... other (they have opposite polarities; ZL = jXL and ZC = -jXC ). Above the resonant frequency, XL is increasing and XC is decreasing, which means that the inductor blocks signal above the resonant frequency. The opposite happens below the resonant frequency. ...
350W Subwoofer Amplifier
... The default extension filter (12hz with Q=0.7) is good for sealed box subwoofers. It provides a gradual attenuation at the bottom end. On the other hand, extension filter plays a very important role in preventing over-excursion (or bottoming) in vented box subwoofers. If you will be using this ampli ...
... The default extension filter (12hz with Q=0.7) is good for sealed box subwoofers. It provides a gradual attenuation at the bottom end. On the other hand, extension filter plays a very important role in preventing over-excursion (or bottoming) in vented box subwoofers. If you will be using this ampli ...
Regenerative circuit
The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.