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Generation of RF for acceleration
Generation of RF for acceleration

... Surface must be at same potential so field lines much be normal to the surface ...
Sampling Phase Detectors
Sampling Phase Detectors

... bandpass filter network. The circuit's performance can be improved by matching the microwave source to the Schottky diodes. Also use microwave layout rules for the physical layout of the interface circuit between the microwave source and the Schottkys. R3 and C2 create a low pass filter which separa ...
Hearing Science
Hearing Science

... • When you have two (or more) sinusoids as inputs, the output will be the difference of these tones. ...
Angle Modulation Part 2
Angle Modulation Part 2

... Certain forms of interference at the receiver are more easily to suppressed, as FM receiver has a limiter which eliminates the amplitude variations and fluctuations. The modulation process can take place at a low level power stage in the transmitter, thus a low modulating power is needed. Power cont ...
Frequency Response of Amplifiers
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... The amplifier bandwidth is defined by the 3-dB frequency which is typically evaluated by the dominant pole (the lowest-frequency pole) in the transfer function ...
A Solution for Peak EMI Reduction with Spread Spectrum Clock
A Solution for Peak EMI Reduction with Spread Spectrum Clock

... to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, ...
Document
Document

... and capacitors. Both techniques work well and have their advantages and disadvantages. In this lab, we will “solder together” the circuit using standard components, which give us the opportunity to learn soldering techniques and the satisfaction of testing a circuit. The band pass circuit is shown b ...
AN7600 - Synergy Microwave
AN7600 - Synergy Microwave

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MAX7375 3-Pin Silicon Oscillator General Description Features
MAX7375 3-Pin Silicon Oscillator General Description Features

... are used to set or adjust the frequency. Unlike typical crystal and ceramic resonator oscillator circuits, the MAX7375 is highly resistant to vibration and EMI. The high output drive current and absence of high-impedance nodes also makes the oscillator less susceptible to dirty or humid operating co ...
How to fix your 260Z or 280Z clock. I first wrote this up about
How to fix your 260Z or 280Z clock. I first wrote this up about

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... I have tried to fix the earliest clocks with the motor drives but had no success. These had ‘Jeco’ stamped on the clock face and were found on the 240Zs. If you have one of these, this document won’t help you. I have also tried fixing my 260Z clock (and the clocks out of some other 260Zs). These had ...
TIA Contribution Ref Codec, Loudness Ratings, Handsfree
TIA Contribution Ref Codec, Loudness Ratings, Handsfree

... [email protected] ...
pape
pape

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Jun 1999 LTC1569-X, 10th Order, Linear
Jun 1999 LTC1569-X, 10th Order, Linear

... external or internal clock. If the system already possesses a crystal-based master clock of several MHz, the desired clock frequency for the filter can be derived by using appropriate dividers. Clock division by conventional binary or decade counters will then provide enough resolution to fit the ap ...
PowerPoint Slides
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... • Disclaimer - Nothing in the talk is warranted as accurate, optimal or indeed sensible. • Objective – Encourage people to recycle a CB as a way of learning about radio systems and producing a useful and unusual radio. • Practical - High level talk through of the process and issues. ...
LC Tunable Oscillator
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... The transformer ferromagnetic losses, the lag phase brought by Q1, Q2 and Q3, the output impedance of Q3 and the stray capacity in parallel with R1//R2 limit this high frequency value. Designing more powerful amplitude limitation device, based on nonlinear voltage-controlled voltage source Further r ...
INSTRUMENTS, INC. - Novatech Instruments
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... The 409B 171 MHz Four Channel Direct Digital Synthesized Signal Generator in a small table top case. The 409B generates four output signals simultaneously up to 171MHz in 0.1Hz steps under serial control. The frequencies of the four outputs can be set independently and can be offset from each other ...
Report on waist dependence of photo
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... To observe the dynamic photo-thermal effect we apply a sinusoidal voltage to EOM2. The power incident on C2 is thus modulated around an average value, as well as the light power absorbed by the mirrors, and a cavity length change is originated due to their non-zero thermal expansion coefficient. We ...
The Colpitts Oscillator
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... •Uses transformer coupling for feedback provision of the signal voltage. •Sometimes called tickler oscillator in reference to transformer secondary of tickler coil. •Less common as compared to previous ones mainly because of transformer size and cost. •The frequency of oscillation is set by the ind ...
abworks Inc. L - Labworks Inc.
abworks Inc. L - Labworks Inc.

... The Labworks SG-135 Sine Generator/Monitor is a low cost, single-channel, manual sine controller that’s adaptable to many test situations. It’s perfect for controlling modal shaker systems, manual calibration stations, or for engineering evaluation and general sine testing applications requiring sin ...
X. Pang
X. Pang

... Our goal is to increase the resonace frequency but make the shunt impedance as high as possible. So we may need to make the loaded capacitance lower (around 100pf) or cut the length of the cavity.(Q=40) We are trying to model this cavity. We will ultimately get more understanding from the real e ...
Radio Frequency Osc.
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... design of the master oscillator.  The minimally distorted sinusoidal output of the oscillator is applied to a broadband amplifier that amplifies the signal and provides buffering between the oscillator and any load connected to the output terminal. If so desired, the RF signal is modulated at the a ...
Investigation of LCR Resonance - Hong Kong University of Science
Investigation of LCR Resonance - Hong Kong University of Science

... By ohm’s law, the potential difference across resistor would be proportional to the current V=IrmsR [7]. Therefore, the resonance frequency could be obtained when there is maximum potential difference across the resistor. Most normal multimeters cannot measure alternating current at frequencies high ...
EEE 302 Lecture 23 - Arizona State University
EEE 302 Lecture 23 - Arizona State University

... • Filters pass, reject, and attenuate signals at various frequencies • Common types of filters: Low-pass: pass low frequencies and reject high frequencies High-pass: pass high frequencies and reject low frequencies Band-pass: pass some particular range of frequencies, reject other frequencies outsid ...
Ultra Low Noise Spread Spectrum Oscilliators
Ultra Low Noise Spread Spectrum Oscilliators

... wireless technologies, it is easy to understand why EMC is becoming one of the most important standard requirements in the new-technology world. In the past, shielding and filtering were the most prevalent method used to control EMI. This method of shielding and filtering can get very expensive. As ...
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Atomic clock



An atomic clock is a clock device that uses an electronic transition frequency in the microwave, optical, or ultraviolet region of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element. Atomic clocks are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, to control the wave frequency of television broadcasts, and in global navigation satellite systems such as GPS.The principle of operation of an atomic clock is not based on nuclear physics, but rather on atomic physics; it uses the microwave signal that electrons in atoms emit when they change energy levels. Early atomic clocks were based on masers at room temperature. Currently, the most accurate atomic clocks first cool the atoms to near absolute zero temperature by slowing them with lasers and probing them in atomic fountains in a microwave-filled cavity. An example of this is the NIST-F1 atomic clock, one of the U.S.'s national primary time and frequency standards.The accuracy of an atomic clock depends on two factors. The first factor is temperature of the sample atoms—colder atoms move much more slowly, allowing longer probe times. The second factor is the frequency and intrinsic width of the electronic transition. Higher frequencies and narrow lines increase the precision.National standards agencies in many countries maintain a network of atomic clocks which are intercompared and kept synchronized to an accuracy of 10−9 seconds per day (approximately 1 part in 1014). These clocks collectively define a continuous and stable time scale, International Atomic Time (TAI). For civil time, another time scale is disseminated, Coordinated Universal Time (UTC). UTC is derived from TAI, but approximately synchronised, by using leap seconds, to UT1, which is based on actual rotation of the Earth with respect to the solar time.
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