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This commit is contained in:
Riccardo Giuntoli
parent
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commit
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292
es.telecomlobby.com/radio_aficion/PCB/equi_cristal.ps
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292
es.telecomlobby.com/radio_aficion/PCB/equi_cristal.ps
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%!PS-Adobe-3.0 EPSF-3.0
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%%Title: equi_cristal
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%%Creator: XCircuit v3.9 rev73
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%%CreationDate: Tue Feb 1 17:41:23 2022
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% Written by Tim Edwards 8/5/93--4/12/16 (tim@opencircuitdesign.com)
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% The Johns Hopkins University (1993-2004)
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% MultiGiG, Inc. (2004-2012)
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% Open Circuit Design (2012-2016)
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61
es.telecomlobby.com/radio_aficion/PCB/equi_cristal.svg
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es.telecomlobby.com/radio_aficion/PCB/equi_cristal.svg
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<ellipse cx="928" cy="229" rx="6" ry="6" fill="#000000" stroke="none" />
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<path d="M560,325 L618,325 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M688,325 L630,325 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M630,293 L630,357 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M618,293 L618,357 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M176,229 L304,229 304,69 368,69 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M496,69 L576,69 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M688,69 L768,69 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M880,69 L928,69 928,229 928,325 688,325 656,325 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M576,325 L304,325 304,229 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<g transform="matrix( 1 0 -0 1 112 245)" fill="#000000" >
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<text stroke="none" font-family="Helvetica" font-size="40" ><tspan x="0" y="0">=</tspan>
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</text></g>
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<path d="M24,241 L24,217 72,217 72,241 z" fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M48,181 L48,205 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M48,277 L48,253 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M28,205 L68,205 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<path d="M28,253 L68,253 " fill="none" stroke-width="2" stroke-linejoin="bevel" stroke-linecap="round" stroke="#000000" />
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<g transform="matrix( 0.8 0 -0 0.8 0 309)" fill="#000000" >
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<text stroke="none" font-family="Helvetica" font-size="40" ><tspan x="0" y="0">Cristal</tspan>
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</text></g>
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<g transform="matrix( 0.8 0 -0 0.8 400 37)" fill="#000000" >
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<text stroke="none" font-family="Helvetica" font-size="40" ><tspan x="0" y="0">R1</tspan>
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</text></g>
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<g transform="matrix( 0.8 0 -0 0.8 608 21)" fill="#000000" >
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<text stroke="none" font-family="Helvetica" font-size="40" ><tspan x="0" y="0">C1</tspan>
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</text></g>
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<g transform="matrix( 0.8 0 -0 0.8 816 21)" fill="#000000" >
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<text stroke="none" font-family="Helvetica" font-size="40" ><tspan x="0" y="0">L1</tspan>
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</text></g>
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<g transform="matrix( 0.8 0 -0 0.8 608 261)" fill="#000000" >
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<text stroke="none" font-family="Helvetica" font-size="40" ><tspan x="0" y="0">C0</tspan>
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</text></g>
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</g>
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</svg>
|
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|
After Width: | Height: | Size: 5.2 KiB |
@ -268,7 +268,13 @@ Se llama filtro en T a lo que tiene uno de sus brazos en serie y otro en paralel
|
||||
|
||||
#### 2.4.5 filtro de cristal de cuarzo.
|
||||
|
||||
Basado en un circuito sintonizado
|
||||
|
||||
|
||||
Basado en un circuito sintonizado, o resonante, de muy elevada selectividad que utiliza uno o más cristales de cuarzo.
|
||||
|
||||
El cuarzo es un mineral cristalino de sílice en el que se descubrieron hacia 1930 [propiedades piezoelectricas](https://es.wikipedia.org/wiki/Piezoelectricidad), tales que el mineral cuando comprimido produce una separación de cargas eléctricas que genera a su vez una diferencia de potencial y reacciona mecánicamente cuando se somete a cun cierto voltaje.
|
||||
|
||||
El cristal de cuarzo se usa como componente de control de la frecuencia de circuitos osciladores convirtiendo las vibraciones mecánicas en voltajes eléctricos a una frecuencia específica, dado que presenta un comportamiento resonante. Así como un [péndulo](https://es.wikipedia.org/wiki/P%C3%A9ndulo) oscila a una frecuencia propia si, tras darle impulso, se le deja moverse libremente, un cristal de cuarzo sometido a un estímulo eléctrico puede continuar vibrando a una cierta frecuencia. Si se mantiene el estímulo de manera periódica y sincronizada, tendremos una [señal](https://es.wikipedia.org/wiki/Se%C3%B1al_el%C3%A9ctrica) a una frecuencia extraordinariamente precisa. Es la contrapartida electrónica de un reloj de péndulo.
|
||||
|
||||
## Bibliografía
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user