{"id":2614,"date":"2024-11-06T10:49:29","date_gmt":"2024-11-06T02:49:29","guid":{"rendered":"https:\/\/www.siproin-ic.com\/?p=2614"},"modified":"2024-11-06T11:20:02","modified_gmt":"2024-11-06T03:20:02","slug":"application-of-24-bit-analog-to-digital-converter-ssp1220-in-monocrystalline-silicon-differential-pressure-sensor","status":"publish","type":"post","link":"https:\/\/www.siproin-ic.com\/tr\/application-of-24-bit-analog-to-digital-converter-ssp1220-in-monocrystalline-silicon-differential-pressure-sensor\/","title":{"rendered":"Monokristal silikon diferansiyel bas\u0131n\u00e7 sens\u00f6r\u00fcnde 24 bit analog-dijital d\u00f6n\u00fc\u015ft\u00fcr\u00fcc\u00fc SSP1220 uygulamas\u0131"},"content":{"rendered":"

Diferansiyel bas\u0131n\u00e7 sens\u00f6r\u00fcne giri\u015f<\/span><\/p>\n

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Fark bas\u0131n\u00e7 sens\u00f6r\u00fc, iki bas\u0131n\u00e7 aras\u0131ndaki fark\u0131 \u00f6l\u00e7mek i\u00e7in m\u00fchendislik, end\u00fcstri ve bilimde yayg\u0131n olarak kullan\u0131lan bir sens\u00f6r t\u00fcr\u00fcd\u00fcr.<\/span><\/p>\n

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\"\"<\/span><\/p>\n

\uff08Bas\u0131n\u00e7 sens\u00f6r\u00fc\uff09<\/span><\/p>\n

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\u00c7al\u0131\u015fma prensibi bas\u0131n\u00e7 ve bas\u0131n\u00e7 aras\u0131ndaki ili\u015fkiye dayan\u0131r.<\/span><\/p>\n

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Bir fark bas\u0131n\u00e7 sens\u00f6r\u00fc genellikle \u00f6l\u00e7\u00fclen ortamdaki iki farkl\u0131 konumdaki bas\u0131nc\u0131 \u00f6l\u00e7mek i\u00e7in \u00f6l\u00e7\u00fclen ortama ba\u011fl\u0131 iki giri\u015f kanal\u0131ndan olu\u015fur. \u0130ki kanal birbirinden ayr\u0131labilir veya bir membran ya da boru ile birbirine ba\u011flanabilir.<\/span><\/p>\n

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\u00d6l\u00e7\u00fclen ortamdaki bas\u0131n\u00e7 farkl\u0131 oldu\u011funda, iki kanaldaki bas\u0131n\u00e7 da farkl\u0131 olacakt\u0131r. Fark bas\u0131n\u00e7 sens\u00f6r\u00fc iki kanaldaki bas\u0131n\u00e7 fark\u0131n\u0131 \u00f6l\u00e7er ve bunu kar\u015f\u0131l\u0131k gelen bir elektrik \u00e7\u0131k\u0131\u015f\u0131na d\u00f6n\u00fc\u015ft\u00fcr\u00fcr.<\/span><\/p>\n

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Yayg\u0131n olarak kullan\u0131lan fark bas\u0131n\u00e7 sens\u00f6rleri piezoelektrik etkiye dayal\u0131 piezoelektrik sens\u00f6rler ve diren\u00e7 etkisine dayal\u0131 diren\u00e7 sens\u00f6rleridir.<\/span><\/p>\n

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Piezoelektrik diferansiyel bas\u0131n\u00e7 sens\u00f6rleri, \u00f6l\u00e7\u00fclen ortama bas\u0131n\u00e7 uyguland\u0131\u011f\u0131nda elektrik y\u00fckleri \u00fcreten piezoelektrik malzemelerin \u00f6zelliklerinden yararlan\u0131r. Y\u00fckseltme ve d\u00f6n\u00fc\u015ft\u00fcrme i\u015fleminden sonra bu y\u00fck sinyali, fark bas\u0131n\u00e7 sens\u00f6r\u00fcn\u00fcn \u00e7\u0131k\u0131\u015f sinyali olarak kullan\u0131labilir.<\/span><\/p>\n

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Rezistif fark bas\u0131n\u00e7 sens\u00f6rleri, fark bas\u0131nc\u0131 \u00f6l\u00e7mek i\u00e7in diren\u00e7teki de\u011fi\u015fiklikleri kullan\u0131r. Yayg\u0131n diren\u00e7li fark bas\u0131n\u00e7 sens\u00f6rlerinden biri metal film yap\u0131s\u0131na dayan\u0131r. \u00d6l\u00e7\u00fclen ortama bas\u0131n\u00e7 uyguland\u0131\u011f\u0131nda, metal film deforme olur ve ard\u0131ndan diren\u00e7 de\u011ferini de\u011fi\u015ftirir.<\/span><\/p>\n

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Diren\u00e7 de\u011ferinin de\u011fi\u015fimi \u00f6l\u00e7\u00fclerek, fark bas\u0131n\u00e7 sens\u00f6r\u00fcn\u00fcn \u00e7\u0131k\u0131\u015f sinyali elde edilebilir. Fark bas\u0131n\u00e7 sens\u00f6rleri genellikle y\u00fcksek hassasiyete, h\u0131zl\u0131 tepkiye ve geni\u015f bir \u00f6l\u00e7\u00fcm aral\u0131\u011f\u0131na sahiptir. Meteorolojik bas\u0131n\u00e7 \u00f6l\u00e7\u00fcm\u00fc, s\u0131v\u0131 seviyesi \u00f6l\u00e7\u00fcm\u00fc, r\u00fczgar h\u0131z\u0131 \u00f6l\u00e7\u00fcm\u00fc gibi gaz, s\u0131v\u0131 ve kat\u0131 bas\u0131n\u00e7 fark\u0131 \u00f6l\u00e7\u00fcmlerinde yayg\u0131n olarak kullan\u0131labilirler.<\/span><\/p>\n

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D\u00fc\u015f\u00fck s\u0131cakl\u0131k end\u00fcstrisinde, fark bas\u0131n\u00e7 sens\u00f6r\u00fc, sa\u011fdaki \u015fekilde g\u00f6sterildi\u011fi gibi, depolama tank\u0131nda s\u0131v\u0131 seviyesi tespiti olarak kullan\u0131labilir, tank\u0131n alt\u0131ndaki sens\u00f6r\u00fcn s\u0131v\u0131 faz\u0131na bir kanal a\u00e7ar ve ard\u0131ndan bas\u0131n\u00e7 form\u00fcl\u00fcne g\u00f6re \u00fcstteki gaz faz\u0131na bir t\u00fcp a\u00e7ar:<\/strong><\/span><\/p>\n

\"\"<\/span><\/p>\n

p=\u03c1gh<\/strong>\uff0c\u0394p = Pa-Pb= \u0394h\u03c1g,<\/strong><\/span><\/p>\n

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Bu \u015fekilde, H y\u00fcksekli\u011fi yo\u011funluktan hesaplanabilir veya kar\u015f\u0131l\u0131k gelen milimetre su s\u00fctununa d\u00f6n\u00fc\u015ft\u00fcr\u00fclebilir.<\/span><\/p>\n

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X \u00fcreticisinin \u00fcr\u00fcnlerini \u00f6rnek olarak al\u0131rsak, i\u00e7inde kullan\u0131lan devre bir diren\u00e7 k\u00f6pr\u00fcs\u00fc devresidir ve \u00e7\u0131k\u0131\u015f voltaj aral\u0131\u011f\u0131 60-160mv, kar\u015f\u0131l\u0131k gelen aral\u0131k 0-20Kpa'd\u0131r ve her PASCAL 5\u03bcV'a kar\u015f\u0131l\u0131k gelir.<\/span><\/p>\n

Ba\u011flant\u0131 \u015femas\u0131 a\u015fa\u011f\u0131daki gibidir:<\/span><\/p>\n

\"\"<\/span><\/p>\n

\uff08Kablo \u015femas\u0131\uff09<\/span><\/p>\n

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Burada, voltaj verilerini toplamak i\u00e7in 24 bit ADC SSP1220 kullan\u0131yoruz ve ard\u0131ndan bunu ilgili s\u0131v\u0131 seviyesine d\u00f6n\u00fc\u015ft\u00fcr\u00fcyoruz.<\/span><\/p>\n

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SSP1220'ye Giri\u015f<\/strong><\/span><\/p>\n

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SSP1220, Siproin Microelectronics taraf\u0131ndan geli\u015ftirilen ve tasarlanan hassas bir 24 bit analog-dijital d\u00f6n\u00fc\u015ft\u00fcr\u00fcc\u00fcd\u00fcr. A\u015fa\u011f\u0131daki \u00f6zelliklere sahiptir:<\/span><\/p>\n