RF Pulse Signal Study in the SAW Delay-Line Sensor

Tian Li Li; Gang Xu; Li Cun Fang

doi:10.4028/www.scientific.net/AMR.655-657.705

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 655-657RF Pulse Signal Study in the SAW Delay-Line Sensor

RF Pulse Signal Study in the SAW Delay-Line Sensor

Abstract:

The SAW delay-line sensor can obtain the energy of the RF pulse query signal through the wireless method. The RF pulse echo signal of the SAW delay-line sensor is significant effected by the different query pulse width of the RF pulse query signal, which is directly related to the sensor precision. The size of the IDT and reflectors, the distance between the IDT and reflector, and the distance among the different reflectors can affect the selection of the RF pulse query signal. The selection method of the query pulse width is discussed through the theoretical analysis and experimental analysis according to the SAW delay-line transmission characteristics. The query pulse width can be calculated directly through the design parameters of the SAW sensor.

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Periodical:

Advanced Materials Research (Volumes 655-657)

Pages:

705-709

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.655-657.705

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Online since:

January 2013

Authors:

Tian Li Li, Gang Xu, Li Cun Fang

Keywords:

Delay-Line, RF Pulse Echo Signal, RF Pulse Query Signal, SAW

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