Modern era Analog computer

-


analog computing machine @ lewis flight propulsion laboratory circa 1949.



heathkit ec-1 educational analog computer


the dumaresq mechanical calculating device invented around 1902 lieutenant john dumaresq of royal navy. analog computer related vital variables of fire control problem movement of 1 s own ship , of target ship. used other devices, such vickers range clock generate range , deflection data gun sights of ship continuously set. number of versions of dumaresq produced of increasing complexity development proceeded.


by 1912 arthur pollen had developed electrically driven mechanical analog computer fire-control systems, based on differential analyser. used imperial russian navy in world war i.


starting in 1929, ac network analyzers constructed solve calculation problems related electrical power systems large solve numerical methods @ time. these scale models of electrical properties of full-size system. since network analyzers handle problems large analytic methods or hand computation, used solve problems in nuclear physics , in design of structures. more 50 large network analyzers built end of 1950s.


world war ii era gun directors, gun data computers, , bomb sights used mechanical analog computers. in 1942 helmut hölzer built electronic analog computer @ peenemünde army research center. v-2 rocket trajectories mechanical analog computers important in gun fire control in world war ii, korean war , past vietnam war; made in significant numbers.


the fermiac analog computer invented physicist enrico fermi in 1947 aid in studies of neutron transport. project cyclone analog computer developed reeves in 1950 analysis , design of dynamic systems. project typhoon analog computer developed rca in 1952. consisted of on 4000 electron tubes , used 100 dials , 6000 plug-in connectors program. moniac computer hydraulic model of national economy first unveiled in 1949.


computer engineering associates spun out of caltech in 1950 provide commercial services using direct analogy electric analog computer ( largest , impressive general-purpose analyzer facility solution of field problems ) developed there gilbert d. mccann, charles h. wilts, , bart locanthi.


educational analog computers illustrated principles of analog calculation. heathkit ec-1, $199 educational analog computer, made heath company, usa c. 1960. programmed using patch cords connected 9 operational amplifiers , other components. general electric marketed educational analog computer kit of simple design in 1960s consisting of 2 transistor tone generator , 3 potentiometers wired such frequency of oscillator nulled when potentiometer dials positioned hand satisfy equation. relative resistance of potentiometer equivalent formula of equation being solved. multiplication or division performed depending on dials considered inputs , output. accuracy , resolution limited , simple slide rule more accurate; however, unit did demonstrate basic principle.


in industrial process control, thousands of analog loop controllers used automatically regulate temperature, flow, pressure, or other process conditions. technology of these controllers ranged purely mechanical integrators, through vacuum-tube , solid-state devices, emulation of analog controllers microprocessors.





cite error: there <ref group=neufeld> tags on page, references not show without {{reflist|group=neufeld}} template (see page).







Comments

Post a Comment

Popular posts from this blog

In literature Socialist realism in Romania

-
1 in literature 1.1 prose works 1.2 poetry 1.3 drama in literature the symbolic debut of socialist realism in literature, official ideology, took place in january 1948, when 3 articles signed sorin toma published in scînteia. titled poetry of putrefaction or putrefaction of poetry , dealt poetic works of tudor arghezi. language used extremely harsh , marked complete break interwar values: foul-smelling vocabulary [...], arghezi in poetry picasso did in painting, introducing excrement artistic material... 1 finds bits of real beauty here , there in arghezi s poetry. in 1950, mihai eminescu school of literature founded, aim of forming new generation of writers in romanian people s republic. in article published in viaţa românească (nr. 3 of 1951), mihai beniuc, member of writers union of romania, offered definition of socialist-realist poet: must philosopher familiar profound ideas of age [...], toward marx, engels, lenin , stalin opened way [...], , activist in service of ideas. ne...
Read more

Flipnote creation Flipnote Studio 3D

-
the main screen of flipnote creation interface. largely similar predecessor, flipnote studio 3d allows users create short animated sketches known flipnotes. flipnotes can made of hundreds of frames, , can played @ variety of speeds. software offers users option create 3d flipnotes drawing different parts of animation on 3 layers. the main tools include pen, eraser, , paintbrush. new flipnotes studio 3d tools draw shapes, fill enclosed areas (paint bucket), , insert text. application features limited color palette, including black, white, red, blue, green, , yellow. slight improvement upon flipnote studio, didn t include yellow , green selectable colors, still possible using color mixing. selection tool used copy , manipulate parts of frame. users can use 3ds system s camera , microphone add audio , photos creations. these animations can either shared on application s native online community, or exporting them gif or avi files.
Read more

How CURP codes are built Unique Population Registry Code

-
1 how curp codes built 1.1 exceptions 1.1.1 Ñ 1.1.2 common given names 1.1.3 catalog of inappropriate words how curp codes built to understand how curp codes built, 1 must first understand hispano american naming conventions. full names in spanish-speaking countries (including mexican full names) consist of 3 elements: the curp code composed of 18 characters assigned follows: the first surname s initial , first inside vowel; the second surname s initial (or letter x if, foreign nationals, person has no second surname); the first given name s initial; date of birth (2 digits year, 2 digits month, , 2 digits day); a one-letter gender indicator (h male (hombre in spanish) or m female (mujer in spanish)); a two-letter code state person born; persons born abroad, code ne (nacido en el extranjero) used; the first surname s second inside consonant; the second surname s second inside consonant; the first given name s second inside consonant; and two characters ranging 0-9 people born before...
Read more