A stroboscopic approach to surface acoustic wave delay line interrogation

Chretien, Nicolas; Friedt, Jean Michel; Martin, Gilles; Ballandras, S.

doi:10.1109/eftf-ifc.2013.6702160

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…Despite being well suited to sensor probing thanks to the ability to define the time-offset of various time-windows, either for sub-surface interface probing or sensor interrogation, stroboscopy must not degrade the sampling rate stability. Although the detailed implementation by Malå of their stroboscopic receiver is described in [20], we base our analysis on our own implementation attempt [21] in which the variable delay is coarsely set by an FPGA and finely tuned by a programmable delay line, in our case Maxim DS1023. Since this particular component stability with environment, and most significantly temperature, is not characterized by the manufacturer, we consider the information provided by Data Delay Devices Inc. in their 3D3418 series programmable delay lines in which a ±3% stability is given over the 0 − −70 • temperature range.…”

Section: Discussionmentioning

confidence: 99%

Passive Cooperative Targets for Subsurface Physical and Chemical Measurements: A Systems Perspective

Friedt

2017

IEEE Geosci. Remote Sensing Lett.

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Section: Discussionmentioning

confidence: 99%

Passive Cooperative Targets for Subsurface Physical and Chemical Measurements: A Systems Perspective

Friedt

2017

IEEE Geosci. Remote Sensing Lett.

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“…However, this could change in the future when the progressive integration of RF chips, software-defined radio solutions and fast ADCs offer more economical implementation options. A further interesting approach to reduce the currently high demands on the ADC is stroboscopic sampling [ 77 , 78 ], where the impulse response of the SAW is scanned by several excitations. This results in a higher measurement time per SAW and increased SNR because only a part of the received energy is used per measurement.…”

Section: Time Domain Sampling and Tds Hybrid Conceptsmentioning

confidence: 99%

Reader Architectures for Wireless Surface Acoustic Wave Sensors

Lurz

Ostertag²,

Scheiner

et al. 2018

Sensors

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Wireless surface acoustic wave (SAW) sensors have some unique features that make them promising for industrial metrology. Their decisive advantage lies in their purely passive operation and the wireless readout capability allowing the installation also at particularly inaccessible locations. Furthermore, they are small, low-cost and rugged components on highly stable substrate materials and thus particularly suited for harsh environments. Nevertheless, a sensor itself does not carry out any measurement but always requires a suitable excitation and interrogation circuit: a reader. A variety of different architectures have been presented and investigated up to now. This review paper gives a comprehensive survey of the present state of reader architectures such as time domain sampling (TDS), frequency domain sampling (FDS) and hybrid concepts for both SAW resonators and reflective SAW delay line sensors. Furthermore, critical performance parameters such as measurement accuracy, dynamic range, update rate, and hardware costs of the state of the art in science and industry are presented, compared and discussed.

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“…Digital delay methods can achieve picosecond level precision using both field-programmable gate arrays (FPGAs) [6][7][8][9][10] and commercially available digital delay devices (e.g. MC100EP195 from OnSemi, DS1023 from Analog Devices, HM856 from Analog Devices, SY89297U from Microchip) [11][12][13]. Additionally, designs using FPGAs offer a high-level of flexibility due their reconfigurable architecture, which is not possible using traditional discrete device hardware designs.…”

Section: Introductionmentioning

confidence: 99%

Picosecond programmable delay line using commercial components for precision timing signal alignment

Freeborn,

Owings,

Griffin

2024

J. Inst.

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A picosecond precision programmable digital delay line with 10 ps average resolution and 200 ns range using low-cost, commercially available integrated circuits (MC100EP195 and DS1023) is presented. This design is integrated into an existing product (AOG-110 from Microchip Technology Inc.) to facilitate alignment between 1 PPS and 5 MHz output waveforms based on user selected features (e.g. zero-crossings or peak amplitudes) for precision-timing applications. The performance of this design is experimentally validated using logarithmic stepped delays from 10 ps to 200 ns with a median deviation of 1.9% from the ideal. The largest deviations are observed in the range from 10 ps to 100 ps, attributed to the non-linear behavior of the MC100EP195 in the design. Overall, this design is a low-cost, digital delay option that can be easily integrated into any microcontroller based system and does not require additional complex design revisions. Further, this highlights the increased range and precision options available by cascading commercially available digital delay line integrated circuits.

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A stroboscopic approach to surface acoustic wave delay line interrogation

Cited by 6 publications

References 4 publications

Passive Cooperative Targets for Subsurface Physical and Chemical Measurements: A Systems Perspective

Passive Cooperative Targets for Subsurface Physical and Chemical Measurements: A Systems Perspective

Reader Architectures for Wireless Surface Acoustic Wave Sensors

Picosecond programmable delay line using commercial components for precision timing signal alignment

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