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被动无线多传感器 SAW 技术设备和系统透视。

A passive wireless multi-sensor SAW technology device and system perspectives.

机构信息

Electrical Engineering & Computer Science Department, University of Central Florida, Orlando, FL 32816, USA.

出版信息

Sensors (Basel). 2013 May 10;13(5):5897-922. doi: 10.3390/s130505897.

DOI:10.3390/s130505897
PMID:23666124
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3690037/
Abstract

This paper will discuss a SAW passive, wireless multi-sensor system under development by our group for the past several years. The device focus is on orthogonal frequency coded (OFC) SAW sensors, which use both frequency diversity and pulse position reflectors to encode the device ID and will be briefly contrasted to other embodiments. A synchronous correlator transceiver is used for the hardware and post processing and correlation techniques of the received signal to extract the sensor information will be presented. Critical device and system parameters addressed include encoding, operational range, SAW device parameters, post-processing, and antenna-SAW device integration. A fully developed 915 MHz OFC SAW multi-sensor system is used to show experimental results. The system is based on a software radio approach that provides great flexibility for future enhancements and diverse sensor applications. Several different sensor types using the OFC SAW platform are shown.

摘要

本文将讨论我们小组在过去几年中开发的一种基于声表面波（SAW）的无源、无线多传感器系统。该设备的重点是正交频分编码（OFC）SAW 传感器，它使用频率分集和脉冲位置反射器来对设备 ID 进行编码，并将与其他实施例进行简要对比。同步相关器收发器用于硬件和后处理，并且将介绍用于提取传感器信息的接收信号的相关技术。所涉及的关键设备和系统参数包括编码、工作范围、SAW 设备参数、后处理和天线-SAW 设备集成。一个完全开发的 915 MHz OFC SAW 多传感器系统被用于展示实验结果。该系统基于软件无线电方法，为未来的增强和各种传感器应用提供了极大的灵活性。展示了几种使用 OFC SAW 平台的不同类型的传感器。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/0c2afec7e682/sensors-13-05897f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/dac8bc06a27d/sensors-13-05897f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/00ee38d8d2e5/sensors-13-05897f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/707e00a9e913/sensors-13-05897f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/abe3e4e6c57c/sensors-13-05897f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/ed900618ae1e/sensors-13-05897f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/72851528c0d1/sensors-13-05897f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/410151ec7805/sensors-13-05897f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/d8fb45e6fd59/sensors-13-05897f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/85fd6c12498d/sensors-13-05897f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/f00f70511284/sensors-13-05897f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/c0ecd03a01f7/sensors-13-05897f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/29f2137e1f18/sensors-13-05897f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/0c2afec7e682/sensors-13-05897f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/dac8bc06a27d/sensors-13-05897f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/00ee38d8d2e5/sensors-13-05897f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/707e00a9e913/sensors-13-05897f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/abe3e4e6c57c/sensors-13-05897f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/ed900618ae1e/sensors-13-05897f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/72851528c0d1/sensors-13-05897f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/410151ec7805/sensors-13-05897f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/d8fb45e6fd59/sensors-13-05897f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/85fd6c12498d/sensors-13-05897f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/f00f70511284/sensors-13-05897f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/c0ecd03a01f7/sensors-13-05897f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/29f2137e1f18/sensors-13-05897f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e58a/3690037/0c2afec7e682/sensors-13-05897f14.jpg

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