光电脉搏传感器的设计与改进

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1、ChineseJournalofMedicalInstrumentation2009౎33ਝڼ5೺ย>>ऺ>>዆>>ሰ࿔ቤՊࡽǖ1671-7104(2009)05-0344-03ā࠼ۉஞճدߌഗڦยऺᇑ߀৊śፕ>>>>>>ኁğቧLjዜমࡴዝۉጱ੔रٷბۉጱ႑တბᇾLjኅॿLjࡴዝLj310018śቌ>>>>>>ᄲğ঻ถକپ࠶टܾ࠼घᆩLjඡ߅ڦሞ٪ഗߌدճஞۉ࠼ཥد༺೵ཚ݀࠼ܾट࠶Lj߀฀କ࠼ᇸዊଉǗยऺକມणׯࣅ࠼௺ႊೌOPT101ྺࢃ႐ݛ๼د਍ຕڦ1E24FRnᇀएକ؜༵Ǘऺยڦୟۉॠࡽ႑କ৊߀Ljୟۉൽ༵ࡽ႑ڦ݆Ljํ၄କຕ਍ڦၙ૙ডڟڥLj܈৛ߛ༵ඡ߅዆ᅞںၳᆶీཥဣ޿Lj௽՗ᄓ๬ă๼د၍࿮ڦஞճհ႑

2、ࡽăś࠲>>॰>>د၍࿮Ǘ1E24FRnǗհճஞǗഗߌدճஞۉ࠼ğَ๼śዐ཮ૌࡽğTP212ś࿔၅Ք๎ஓğATheDesignandImprovementofPhotoelectricPulseSensorśWritersğZHANGXun,ZHOUJieInstituteofelectronicinformation,HangzhoudianziUniversity,Hangzhou,310018śAbstract>ğThispaperintroducesthedesignoftraditionalphotoelectricpulsesensor,researchesthemeasure

3、noiseandrealizestheimprovementofthesensor.LaserdiodeisusedinsteadoftraditionalLEDtoimprovethequalityofthelightsource.ThecircuitisdesignedbasedondoubleOPT101,andthesignaldetectioncircuitisimproved.DatacommunicationisproposedbasedonnRF24E1anddatawirelesscommunicationisrealized.Thetestresultsindicate

4、thatthesystemcanefficientlyremovethesystemnoiseandimprovetheprecisionofmeasure.śKeywordsğphotoelectricpulsesensor,pulsewave,nRF24E1,wirelesscommunicationට༹ஞճ႑ࡽዐԈࡤحጱ࠼ړ,ူ઄൧ӯᅃăኙ༬ࠓ঳ڦኯፇਏضଣܔLjတ႑૙ิڦ޷ሁ঻ዊ้,ᅺీᆶዘٷڦᅪᅭă࠼ۉඹओ݆๟ړৃଉஞճ႑ࡽڦᅃଉԥဌ๭ܸڞዂڦഽ܈ປ३੗௮ຎྺǖዖᆶၳݛ݆Ljᄺ੗ᅜᆩઠଉეᄟԏࢅ܈Ăᄟუࢅ¯¯¯I=I0exp(-α×ε)ƃ႐ճڦ࠲၎ࠓ঳ኯፇᇑ๟αLjഽ࠼พ෇๟0Iዐ๕ຍर

5、ڦ૰ᆶഽࠃ༵ኑضଣྺLjՔኸ૙ิڪଉ؜ဌ๭ဣ[1]ኧ׼ăຕDŽրළۯ࿿ڦαኵሞ0.1~100ኮक़DžLjε๟ᄂ࠼ዡݛၠ[2]࠼ۉ๕ஞճدߌഗ๟ߵ਍࠼ۉඹओ݆ᇱ૙LjཚࡗڦፖՔ׊܈ă๮ኸፇኯ੗ᅜׯೄޒĂक඾ĂࠡỞڪܔ๮ኸ఍܋ཪ࠼܈ڦ॔Ljᆯ࠼ഽ܈Վࣅक़থॠ؜ݥეᅂፇኯࢅეᅂፇኯLjഄዐݥეᅂፇኯڦ࠼ဌ๭ଉஞճ႑ࡽăۯᇀܔ၎ۯճڦეஞৢዐᅂეܸLjڦ࢛ۨ๟ඓጚܸඡ߅ڟ๴ᅟඹጣሞ٪ഗߌدڦཥدஞე๟ๆ܈փߛڦ࿚༶Ljܸ൐एԨฉۼ๟ཚࡗز੨၍ᇑฉ࿋ऐྲෑڦLj੗ᅜࢮ୼Ljᅺُ੗ᅜණྺ࠼ཪࡗ๮ኸࢫڦՎ၎૶ڦ׊հ࢛ۨሞăڦഐᆅܸᆕڦეஞۯᆯৈࣅࣷ৽Ⴀऄଳࢅྷݔᆩ๑ڦཥဣणճஞᄣኄLjڦ࠼ᇸቷ๴ںথक़ᅜ੗Ljഽ࠼ڦኸ๮ࡗཪॠࡗཚ

6、LjူพԝأၩĂᇸ࠼฀߀ٗഗߌدLj઄൧ዖኄᇀएă዆၌ڟଉට༹ৠ࠼ሯำĂڦ৯ჺLj݀؜௬ݛ຺߲Բሯ႑ߛ༵ࢅԸೡىۉஞճ႑ࡽă߀৊ڦᇸ࠼พ݀1.1ऄଳڦᆩ๑ߛ༵ܔLj๼د၌࿮ڦࡽ၄႑ํժLj݆ݛ߀৊Ⴀࢅጚඓ܈ᆶጣዘٷᅪᅭăሞᅜྫڦدߌഗዐLj݀พ࠼ᇸۼ๟೵ཚڦ݀࠼ܾ1࠼ٷओ௬ො݀Lj੻ডټ೷ڦ࠶टܾ࠼݀ᇀᆯLj࠶टሰࠓࢅ૙ᇱڦഗߌدճஞۉLjྫྫߵ਍શնᅃԲܻ(LambertęBeer)ۨୱLj࿿ዊሞᅃࣷڞዂ႑ࡽዊଉՎLj๴࣍ৣ࠼߅ඡჹዘăدߌഗᆩڦཚ೵ᇑLjᇸ࠼พ݀ྺፕ࠶टܾ࠼घڦ׊հ࢛ۨړăԲኟׯ܈౪ڦ໲ᇑ܈࠼ဌڦت׊հۨ݀࠼ܾट࠶၎Բ[3]࠼ቷพڟට༹ፇኯฉ้Ljཚࡗට༹ፇኯဌ๭Ăݒพປ३ਏᆶᅜူᆫۅǖࢫଉڟڦ

7、࠼ഽLjॽሞᅃۨײ܈ฉݒᆙକԥቷพև࿋(1)घ࠼ܾट࠶݀พڦ࠼၍࠼೷੻܈቏Ljਏᆶ࢔ࡻڇڦ෥ႠǗ๭ߡන೺ǖ2009-06-08एূၜణǖࡔॆጲ඗੔ბएূጨዺၜణDŽ60871020Dž(2)ڟ๴ᅟඹփLjၭ௬ො݀Ljၭओ௬࠼݀LjഽႠၠݛፕኁ०঻ǖቧLjձ๗Ljޭঞ๲Ljຬ๗ิڞ฾ǗዜমLjሞ܁ჺ৯ิLjۉጱ႑တۉୟᇑဣཥጆᄽăE-mailǖjie6121897@163.comԝৠ࠼߅ඡǗ万方数据344ChineseJournalofMedic