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Lecture 13
Lecture 13

CLIF MOCK CD30A Sampler Drive IOM
CLIF MOCK CD30A Sampler Drive IOM

Dual Channel Function/Arbitrary Waveform Generators
Dual Channel Function/Arbitrary Waveform Generators

pacemakers 2 - galileo.harvard.edu
pacemakers 2 - galileo.harvard.edu

... Most commonly used because it offers long battery life  It is solid-state device consisting of metallic Lithium anode and molecular iodine bonded in complex form o an organic carrier as cathode  2Li + I2 = 2LiI + e Lithium has highest g electrochemical equivalent of alkali metal - Most energetic ...
OPTICAL FIBRE : TEST AND MEASUREMENTS
OPTICAL FIBRE : TEST AND MEASUREMENTS

... •In the Splice Loss mode, two markers are set on each side of the Splice Point and the lines L1 and L2 are drawn as shown below. The part of the straight line immediately after the splice point is the forward projection of the straight line, L2 •The Splice Loss is found by dropping a vertical line ...
A Silicon-Based, Fully Integrated Pulse Electron Paramagnetic
A Silicon-Based, Fully Integrated Pulse Electron Paramagnetic

... resistance cross-coupled transistor pair that provides the oscillator core. Differential transmission lines are used to bias the oscillator core as well as to serve as inductors to resonate with the varactor. The varactor is implemented using reversebiased diodes. Following the VCO is a single-stage ...
The New V/I Characteristic Expression
The New V/I Characteristic Expression

... Characteristics and Parameters for Application Reference TOV Withstanding Ampere-Second Characteristics / Value Varistors used in supply circuits inevitably suffer TOV (temporary overvoltage) stresses, the thermal breakdown of varistors by harsh TOV stresses may cause fires. Despite of its small pr ...
Sine Pulse Width Modulation (SPWM)
Sine Pulse Width Modulation (SPWM)

... Advantage  The main advantage of PWM is that power loss in the switching devices is very low.  When a switch is off there is practically no current, and when it is on, there is almost no voltage drop across the switch.  Power loss, being the product of voltage and current, is thus in both cases c ...
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Oscilloscope Measurement Labs

...  How to use the trigger function on the oscilloscope to trigger on the positive or negative edge of a signal. In real-life applications, we can use this concept:  To analyze the seismic waves from the earth to for early detection of an earthquake  To capture a stable waveform even with noisy / ir ...
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... A check of its correspondence to SI system is stipulated by the necessity to get firm information concerning a correct conversion of electrical energy into other types of energy, for example, into thermal energy [6]. But nobody does it; everybody places confidence in the mathematicians who elaborate ...
Ultrafast polarization switching in thin-film ferroelectrics
Ultrafast polarization switching in thin-film ferroelectrics

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Brochure - Future Retro

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Voltage-Controlled Oscillator at 6 GHz for Doppler Radar in Heart
Voltage-Controlled Oscillator at 6 GHz for Doppler Radar in Heart

... An oscillator is a system that converts the DC voltage from a source into an RF signal. There is no external excitation. The oscillations are the result of random noise (usually thermal noise in resistors). This noise enters a cumulative process and gets amplified. Part of the signal goes to the out ...
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power_point1..metal_detector..final1_

... fields act in such a direction as to oppose that generated by the coils. The resultant field ( H applied – H eddy ) and using a specially designed electronic circuit can indicate the type of material being magnetized. ...
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A Silicon Axon - NIPS Proceedings
A Silicon Axon - NIPS Proceedings

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... Pulses offer a simple way to output the amount of energy that has been measured by a meter (electrical, thermal, gas, water, etc). Pulses are brief bursts of DC (direct current) voltage, with each burst having an abrupt beginning (or rise) and an abrupt ending (or decay), and their output is typicall ...
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... interest in 0.1 – 1 ps, high-power, mid-IR laser pulses. Pulses in the deep mid-IR, λ ~ 10 µm, are especially desirable since the efficacy of light-matter interactions scale quadratically with the laser wavelength. Such long wavelength, high power laser pulses can only be produced using the CO2 lase ...
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... Thus the combination of the HPF and LPF helps to remove unwanted DC signal and high frequency noise including 60 Hz (50 Hz in some countries) mains interference, while amplifying the low amplitude pulse signal (AC component) 101 times. The output from the first signal conditioning stage goes to a si ...
AND8040/D Phase Lock Loop General Operations
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... loss in gain is caused by saturation or near saturation conditions, the loop will be slow and oscillatory when settling into lock. An amplifier may exceed spec limits when subjected to large overshoot transients during times of peak energy output from the phase detector. Amplifier input frequency wi ...
样章下载
样章下载

LM1881 Video Sync Separator (Rev. F)
LM1881 Video Sync Separator (Rev. F)

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Chirp compression



The chirp pulse compression process transforms a long duration frequency-coded pulse into a narrow pulse of greatly increased amplitude. It is a technique used in radar and sonar systems because it is a method whereby a narrow pulse with high peak power can be derived from a long duration pulse with low peak power. Furthermore, the process offers good range resolution because the half-power beam width of the compressed pulse is consistent with the system bandwidth.The basics of the method for radar applications were developed in the late 1940s and early 1950s, but it was not until 1960, following declassification of the subject matter, that a detailed article on the topic appeared the public domain. Thereafter, the number of published articles grew quickly, as demonstrated by the comprehensive selection of papers to be found in a compilation by Barton.Briefly, the basic pulse compression properties can be related as follows. For a chirp waveform that sweeps over a frequency range F1 to F2 in a time period T, the nominal bandwidth of the pulse is B, where B = F2 – F1, and the pulse has a time-bandwidth product of T×B . Following pulse compression, a narrow pulse of duration τ is obtained, where τ ≈ 1/B, together with a peak voltage amplification of √(T×B).
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