{"title":"青光眼915MHz射频识别压力传感器的设计与测试","authors":"Andre Faul, J. Naber","doi":"10.1109/LASCAS.2014.6820300","DOIUrl":null,"url":null,"abstract":"A Radio Frequency Identification (RFID)-based pressure sensing system is developed to extend the range of current Intra-Ocular Pressure (IOP) sensing systems. The system described in this work utilizes a unique Electrically Small Antenna (ESA) that measures 7mm × 10mm to receive a 915MHz signal used to power the system. A four-stage Schottky rectifier circuit is used to rectify the received signal and provide dc power via a regulator to a Colpitts oscillator. The Colpitts oscillator senses pressure and provides an output signal that is proportional to the pressure. The system is fabricated using a mature, inexpensive 0.5μm CMOS fabrication process and is capable of operating over a range of 5.4cm.","PeriodicalId":235336,"journal":{"name":"2014 IEEE 5th Latin American Symposium on Circuits and Systems","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2014-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"Design and test of a 915MHz, RFID-based pressure sensor for Glaucoma\",\"authors\":\"Andre Faul, J. Naber\",\"doi\":\"10.1109/LASCAS.2014.6820300\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A Radio Frequency Identification (RFID)-based pressure sensing system is developed to extend the range of current Intra-Ocular Pressure (IOP) sensing systems. The system described in this work utilizes a unique Electrically Small Antenna (ESA) that measures 7mm × 10mm to receive a 915MHz signal used to power the system. A four-stage Schottky rectifier circuit is used to rectify the received signal and provide dc power via a regulator to a Colpitts oscillator. The Colpitts oscillator senses pressure and provides an output signal that is proportional to the pressure. The system is fabricated using a mature, inexpensive 0.5μm CMOS fabrication process and is capable of operating over a range of 5.4cm.\",\"PeriodicalId\":235336,\"journal\":{\"name\":\"2014 IEEE 5th Latin American Symposium on Circuits and Systems\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE 5th Latin American Symposium on Circuits and Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/LASCAS.2014.6820300\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE 5th Latin American Symposium on Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LASCAS.2014.6820300","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design and test of a 915MHz, RFID-based pressure sensor for Glaucoma
A Radio Frequency Identification (RFID)-based pressure sensing system is developed to extend the range of current Intra-Ocular Pressure (IOP) sensing systems. The system described in this work utilizes a unique Electrically Small Antenna (ESA) that measures 7mm × 10mm to receive a 915MHz signal used to power the system. A four-stage Schottky rectifier circuit is used to rectify the received signal and provide dc power via a regulator to a Colpitts oscillator. The Colpitts oscillator senses pressure and provides an output signal that is proportional to the pressure. The system is fabricated using a mature, inexpensive 0.5μm CMOS fabrication process and is capable of operating over a range of 5.4cm.
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