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Memorizing circuit for long pulses; Circuit de memoire pour impulsions longues; Zapominayushchee ustrojstvo dlya dlitel'nykh impul'sov; Circuito memorizador para impulsos de larga duracion

Abstract

The circuit allows unlimited memorization of a positive pulse of any shape, and retains both amplitude and width. Theoretically a rectangular pulse of amplitude A and width t produced as a single pulse when t = 0 can be reproduced in its own area after any time {tau}, so that it may be retained on an oscilloscope synchronized at a repetition frequency {approx_equal} 1/{tau}. The rise form of pulse is not memorized, so that the pulse rise and decay time retained by the oscilloscope are those inherent to the memorizing circuit. Basically the circuit may be considered as being formed by two stretching circuits. These transform the input width from t to t + {tau}. The lengthened pulses of opposite phases are added to obtain at the output a pulse of amplitude A and width t. The delay {tau} is controlled by two monostables triggered at an interval t (delay control circuit) by a saturated amplifier which squares the input and gives two pulses, through a differentiating circuit (delay-measuring circuit). The output pulse is fed back to the input through an attenuator and a delay line. The cycle is repeated with a repetition rate of {approx} l/{tau}. The memorized pulse  More>>
Authors:
Coli, M; Horn, G [1] 
  1. Sorin Centro Ricerche Nucleari di Saluggia (Italy)
Publication Date:
Apr 15, 1962
Product Type:
Conference
Resource Relation:
Conference: Conference on Nuclear Electronics, Belgrade, Yugoslavia (Serbia), 15-20 May 1961; Other Information: 4 figs; Related Information: In: Nuclear Electronics II. Proceedings of the Conference on Nuclear Electronics. V. II| 473 p.
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AMPLIFIERS; AMPLITUDES; CONTROL; DELAY CIRCUITS; MEMORY DEVICES; OSCILLOGRAPHS; PULSE RISE TIME; PULSE SHAPERS; PULSES
OSTI ID:
22028409
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N2032116675
Submitting Site:
INIS
Size:
page(s) 451-459
Announcement Date:
Jan 24, 2013

Citation Formats

Coli, M, and Horn, G. Memorizing circuit for long pulses; Circuit de memoire pour impulsions longues; Zapominayushchee ustrojstvo dlya dlitel'nykh impul'sov; Circuito memorizador para impulsos de larga duracion. IAEA: N. p., 1962. Web.
Coli, M, & Horn, G. Memorizing circuit for long pulses; Circuit de memoire pour impulsions longues; Zapominayushchee ustrojstvo dlya dlitel'nykh impul'sov; Circuito memorizador para impulsos de larga duracion. IAEA.
Coli, M, and Horn, G. 1962. "Memorizing circuit for long pulses; Circuit de memoire pour impulsions longues; Zapominayushchee ustrojstvo dlya dlitel'nykh impul'sov; Circuito memorizador para impulsos de larga duracion." IAEA.
@misc{etde_22028409,
title = {Memorizing circuit for long pulses; Circuit de memoire pour impulsions longues; Zapominayushchee ustrojstvo dlya dlitel'nykh impul'sov; Circuito memorizador para impulsos de larga duracion}
author = {Coli, M, and Horn, G}
abstractNote = {The circuit allows unlimited memorization of a positive pulse of any shape, and retains both amplitude and width. Theoretically a rectangular pulse of amplitude A and width t produced as a single pulse when t = 0 can be reproduced in its own area after any time {tau}, so that it may be retained on an oscilloscope synchronized at a repetition frequency {approx_equal} 1/{tau}. The rise form of pulse is not memorized, so that the pulse rise and decay time retained by the oscilloscope are those inherent to the memorizing circuit. Basically the circuit may be considered as being formed by two stretching circuits. These transform the input width from t to t + {tau}. The lengthened pulses of opposite phases are added to obtain at the output a pulse of amplitude A and width t. The delay {tau} is controlled by two monostables triggered at an interval t (delay control circuit) by a saturated amplifier which squares the input and gives two pulses, through a differentiating circuit (delay-measuring circuit). The output pulse is fed back to the input through an attenuator and a delay line. The cycle is repeated with a repetition rate of {approx} l/{tau}. The memorized pulse has a width from 50 {mu}s to over 10 ms. The repetition rate may vary from 10{sup 4} Hz to 30 Hz and less. Another circuit, obtained by using the same principle, is described in the original paper. It can also memorize input pulse shape apart from the amplitude and width. (author) [French] Le circuit permet la memorisation illimitee d'une impulsion positive de n'importe quelle forme; il en conserve a la fois l'amplitude et la largeur. Theoriquement, une impulsion rectangulaire d'une amplitude A et d'une largeur t, produite sous forme d'impulsion unique a un temps t = 0, peut etre reproduite apres un temps {tau}, ce qui permet de la conserver sur un oscilloscope synchronise a une frequence de repetition {approx_equal} 1/{tau}. La forme de la montee de l'impulsion n'etant pas memorisee, les temps de montee et de decroissance retenus par l'oscilloscope sont les temps propres au circuit de memorisation. On peut considerer le circuit comme etant forme essentiellement de deux circuits d'allongement qui transforment la largeur a l'entree de t en t + {tau}. On additionne les impulsions allongees de phases opposees pour obtenir a la sortie, une impulsion d'amplitude A et de largeur t. Le retard {tau} est commande a l'aide de deux circuits monostables, declenches a un intervalle t (circuit de la commande de retard) par un amplificateur sature qui donne a l'impulsion d'entree une forme rectangulaire et emet deux impulsions par l'intermediaire d'un circuit de differentiation (circuit de mesure du retard). L'impulsion de sortie est retransmise a l'entree par un attenuateur et une ligne a retard. Le cycle est repete avec une frequence de repetition de {approx} 1/{tau}. L'impulsion memorisee a une largeur comprise entre 50 {mu}s et 10 ms ou davantage. La frequence de repetition peut varier de 10{sup 4} Hz a 30 Hz et en dessous. Les auteurs decrivent egalement un autre circuit fonde sur le meme principe et capable de memoriser, en plus de l'amplitude et de la largeur, la forme de l'impulsion d'entree. (author) [Spanish] El circuito permite el almacenaje ilimitado de un impulso positivo de cualquier forma, conservando tanto la amplitud como el ancho del impulso. En teoria, un impulso rectangular de amplitud A y anchura t producido como impulso aislado en un tiempo t = 0 puede ser reproducido en su propia area despues de un tiempo cualquiera {tau}, de forma que puede ser retenido en un osciloscopio sincronizado a una frequencia de repeticion {approx_equal} 1/{tau}. El circuito no memoriza la forma de elevacion del impulso, asi que los tiempos de elevacion y de caida del impulso que retiene el osciloscopio son los inherentes al propio circuito memorizador. En esencia, se puede considerar que el circuito esta formado por dos circuitos alargadores que amplian la anchura de entrada desde ra t + {tau}. Se suman los impulsos alargados de fase opuesta y se obtiene asi en la salida un impulso de amplitud A y de anchura t. El retardo {tau} es controlado por dos univibradores disparados a una distancia t (circuito de control del retardo) por un amplificador saturado que transforma en rectangular al impulso de entrada y da dos impulsos por medio de un circuito diferenciador (circuito medidor del retardo). El impulso de salida se pasa de nuevo a la entrada a traves de un atenuador y de una linea de retardo, El ciclo se repite con una frecuencia de {approx} 1/{tau}. El impulso memorizado tiene un ancho de 50 {mu}s a 10 ms y hasta mas. La frecuencia de repeticion puede variar desde 10{sup 4} Hz hasta 30 Hz e incluso menos. Se describe otro circuito basado en el mismo principio y que es capaz de memorizar la configuracion del impulso de entrada ademas de su amplitud y de su anchura. (author) [Russian] Blok-skhema predostavlyaet vozmozhnost' neogranichennogo zapominaniya polozhitel'nykh impul'sov lyuboj formy s sokhraneniem kak ikh amplitudy, tak i ikh shiriny. Teoreticheski pryamougol'nyj impul's s amplitudoj A i shirinoj t, proizvodimyj v kachestve odnokratnogo impul'sa v moment t = 0 mozhet byt' vosproizveden v svoej sobstvennoj zone cherez lyuboj promezhutok vremeni t, tak chto on mozhet byt' zaderzhan na ostsilloskope, sinkhronizirovannom s chastotoj povtoreniya {approx_equal} 1/{tau}. Narastayushchaya forma impul'sa ne zapominaetsya, tak chto vremya narastaniya i spada uderzhannogo ostsilloskopom impul'sa svojstvenny lish' samomu zapominayushchemu ustrojstvu. Po sushchestvu blok-skhema mozhet rassmatrivat'sya kak sostoyashchaya iz dvukh rasshiryayushchikh konturov. EHti kontury prevrashchayut vkhodnuyu shirinu t v t + {tau}. Udlinennye impul'sy protivopolozhnykh faz skladyvayutsya i dayut vykhodnoj impul's s amplitudoj A i shirinoj t. Vremya zaderzhki {tau} reguliruetsya dvumya konturami, ustojchivymi tol'ko v odnom sostoyanii i privodimymi v dejstvie s rasstoyaniya t (kontrol'noj kontur zaderzhki) nasyshchennym usilitelem, kotoryj udvaivaet vkhodnoj signal i daet cherez differentsiruyushchij kontur (izmeritel'nyj kontur zaderzhki) dva impul'sa. Vykhodnoj impul's podaetsya snova na vkhod cherez oslabitel' i liniyu zaderzhki. EHtot tsikl povtoryaetsya s chastotoj povtoreniya {approx} 1/{tau}. Zapominaemyj impul's imeet shirinu ot 50 mikrosekund do 10 millisekund, i bol'she. CHastota povtoreniya mozhet izmenyat'sya v intervale ot 10{sup 4} gts do 30 gts i menee. V samom doklade opisyvaetsya i drugoj kontur s ispol'zovaniem togo zhe samogo printsipa. Pomimo amplitudy i shiriny ehtot poslednij kontur mozhet zapominat' i formu vkhodnogo impul'sa. (author)}
place = {IAEA}
year = {1962}
month = {Apr}
}