Author: Dr. Rüdiger Paschotta. Does English Have More Words Than Any Other Language? Definition: A modulation technique where the width of the pulses of the pulsed carrier wave is changed according to the modulating signal is known as Pulse Width Modulation (PWM).It is also known as Pulse duration modulation (PDM).. pulse duration: (in ultrasonics) a measure of the time a transducer oscillates for each pulse. This tutorial explains how to calculate the laser pulse time duration. In a pulse waveform, the interval between (a) the time, during the first transition, that the pulse amplitude reaches a specified fraction (level) of its final amplitude, and (b) the time the pulse amplitude drops, on the last transition, to the same level. PRF is the rate that pulses repeat per second and is equal to the inverse of PRI. I have a laser with a short pulse duration (sub 20 fs) and i want to know how long the pulse would be after it passes through X amount of material. Lexico's first Word of the Year! A familiar example of PDM is the International Morse Code, used in ship-to-shore communications, amateur radio, and certain other forms of radiotelegraphy. Definitions of Pulse-duration modulation, synonyms, antonyms, derivatives of Pulse-duration modulation, analogical dictionary of Pulse-duration modulation (English) Since the width is changing, the power loss can be reduced when compared to PAM signals. Pulse width modulation (PWM), or pulse-duration modulation (PDM), is a method of reducing the average power delivered by an electrical signal, by effectively chopping it up into discrete parts. The time during which the laser output pulse power remains continuously above half its maximum value. VF−TLP systems are primarily used to explore charged device model (CDM) behavior in integrated circuits. Dictionary of Military and Associated Terms. Definitions Related words. pulse duration Definition in the dictionary English. What are synonyms for pulse duration … pulse lengths less than 10 ns are referred to as Very Fast Transmission Line Pulse (VF−TLP). How do you use pulse duration modulation in a sentence? Pulse Width Modulation (PWM) or Pulse Duration Modulation (PDM) or Pulse Time Modulation (PTM) is an analog modulating scheme in which the duration or width or time of the pulse carrier varies proportional to the instantaneous amplitude of the message signal. This is not sensitive to some weak pedestals as often observed with optical pulses. Pulse-duration modulation. Practical Definition Method of Laser Ablation Threshold in Nano-second Order Pulse Duration Considering Intensity Distribution at Focal Point . There are actually different definitions of a pulse duration: The most frequently used definition is based on the full width at half-maximum (FWHM) of the optical power versus time. Linear Frequency Modulated Pulse Waveforms Benefits of Using Linear FM Pulse Waveform. Basics of Pulse Width Modulation. Define Pulse duration. What is the definition of pulse duration modulation? Pulse Width Modulation is also known as pulse duration modulation (PDM). Such pulses have a broadband optical spectrum, and can be created by mode-locked oscillators. Stem. See synonyms for pulse duration modulation. Learn definitions, uses, and phrases with pulse-duration. In optics, an ultrashort pulse of light is an electromagnetic pulse whose time duration is of the order of a picosecond (10 −12 second) or less. Another kind of pulse modulation is pulse-duration modulation (PDM), in which intelligence is represented by the length and order of regularly recurring pulses. Pulse duration In signal processing and telecommunication, the term pulse duration has the following meanings: Pulse duration using 50% peak amplitude. It's here! Haruhisa SAKAMOTO * and Koji MORIOKA ** * Sophia University, Faculty of Science Technology , 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan . Jump to: General, Art, Business, Computing, Medicine, Miscellaneous, Religion, Science, Slang, Sports, Tech, Phrases We found 9 dictionaries with English definitions that include the word pulse duration: Click on the first link on a line below to go directly to a page where "pulse duration" is defined. pulse duration distribution. Amplitude limiters are used for this. Definition of pulse duration modulation in English: pulse duration modulation. 9 0. In practical electronic and computer systems, a pulse may last from a fraction of a nanosecond up to several seconds or even minutes. The terms "short pulse" and "ultrashort pulse" are a bit general--typically 200 picoseconds down to femtosecond level durations--but when the pulse length becomes this short, material removal becomes a function of vaporization or sublimation rather than absorption. In radar, measurement of pulse transmission time in microseconds; that is, the time the radar's transmitter is energized during each cycle. Match all exact any words “Pulse duration” equal to or exceeding 1 ps and less than 1 ns and any of the following: EurLex-2 EurLex-2. They are commonly referred to as ultrafast events. Here, as the name suggests, the width of the pulse is varied in proportional to the amplitude of the signal. See comprehensive translations to 40 different langugues on Definitions.net! Increasing the duration of a transmitted pulse increases its energy and improves target detection capability. definition - Pulse duration. Words for Places. rms pulse duration: See root-mean-square pulse duration. Definition: a limit for the time–bandwidth–product of an optical pulse. Report an issue with this definition: source: FAA Flight Navigator's Handbook (FAA-H-8083-18) The time over which a radar pulse lasts. These terms are often confused or used interchangeably, when they are actually three different ways of measuring an electrical signal. pulse: A pulse is a burst of current , voltage , or electromagnetic-field energy. Products » Pulse Energy Calculator JOULE SCHOOL - Pulse Energy Calculator Pulse Type: Square Wave Pulse Capacitive Charge/Discharge Pulse Exponentially Decaying Pulse Conversely, reducing the duration of a pulse improves the range resolution of the radar. Word of the day. noun Telecommunications = pulse width modulation. CDM events have peak currents of several amperes and pulse widths which can be less than 1 ns. laser pulse duration synonyms, laser pulse duration pronunciation, laser pulse duration translation, English dictionary definition of laser pulse duration. The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The shorter the pulse duration, the better the axial resolution. Also called pulse length and pulse width. The width of the pulse varies in this method, but the amplitude of the signal remains constant. Definition of the Pulse Duration. Which pulse is likely to create best image? Definition: Period Example sentences with "pulse duration distribution", translation memory. Pulse Duration; Request a Term; Pulse Duration: In radar, measurement of pulse transmission time in microseconds; that is, the time the radars transmitter is energized during each cycle. Pulse Width synonyms, Pulse Width pronunciation, Pulse Width translation, English dictionary definition of Pulse Width. Advertizing Wikipedia. pulse duration distribution in English translation and definition "pulse duration distribution", Dictionary English-English online. The pulses have different durations. patents-wipo. How to use pulse in a sentence. How to cite the article; suggest additional literature. Definition: Laser is a type of electronic device that is built based on the quantum principle which creates a beam of single color photons with the same frequency and phase. Examples. The waveform of a pulsed radar is usually represented by the pulse duration τ, the pulse repetition interval (PRI) T, or the pulse repetition frequency (PRF) f p. PRI is the time interval between two adjacent pulses. Origin. The discharge energy is really controlled by the peak current and the length of the pulse on-time. Pulse duration is the period of time the current is allowed to flow per cycle during the micro-EDM process. Define laser pulse duration. rms pulse duration. Definition: Longer pulse duration Term: Two pulses are created by different transducers. Terms and Definitions. Pulse-duration is contained in 1 match in Merriam-Webster Dictionary. I don't know the refractive index of the material, but I do know its GDD over the wavelength I'm operating at. See definitions & examples. Pulse definition is - the regular expansion of an artery caused by the ejection of blood into the arterial system by the contractions of the heart. From the figure, it is clear that the amplitude of the signal is constant. E-mail: h-sakamo@sophia.ac.jp ** Sony Corporation, 1-7-1, Konan, Minato-ku, Tokyo, Japan . 1950s. pulse duration: 1. It is the ‘work’ part of the spark cycle, when the current flows and work is done only during this time. Category: light pulses. Definition: The shorter duration pusle Term: The pulse duration is expressed in the same units as the ___. How to say pulse duration in other languages? means a time in-terval, expressed in seconds, beginning at the first time the pressure ampli- tude exceeds the minimum pressure amplitude plus 10 percent of the dif- ference between the maximum and minimum pressure amplitudes, and ending at the last time the pressure amplitude returns to this value. definition of Wikipedia. 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