A wide range and high conversion gain power detector for frequency shift sensing applications

Wang, Chua-Chin; Wang, Deng-Shian; Chen, Shiou-Ya; Chang, Chia-Hsiung

doi:10.1109/mwscas.2015.7282030

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Fabrication Of Fpw-based Thc Biosensor and Design Of Read1

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2017

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“…The amplitude to voltage converter (AVC) then transformed AC signals into DC voltages, V p and V n . The DC voltages were enlarged in gain stage, and a peak detector [ 21 , 22 , 23 , 24 , 25 ] monitored the output DC voltage V g , where V flag was generated to control circuit when the maximum was detected. Note that all the mentioned procedures were calibrated in test cycles.…”

Section: Fabrication Of Fpw-based Thc Biosensor and Design Of Readmentioning

confidence: 99%

Highly Sensitive FPW-Based Microsystem for Rapid Detection of Tetrahydrocannabinol in Human Urine

Lan

Hsieh

Huang

et al. 2017

Sensors

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This paper presents a highly sensitive flexural plate-wave (FPW)-based microsystem for rapid detection of tetrahydrocannabinol (THC) in human urine. First, a circular-type interdigital transducer (IDT) was integrated with a circular-type silicon-grooved reflective grating structure (RGS) to reduce insertion loss. Then, with lower insertion loss (−38.758 dB), the FPW device was used to develop a novel THC biosensor, and the results reveal that this FPW-THC biosensor has low detection limit (1.5625 ng/mL) and high mass-sensitivity (126.67 cm2/g). Finally, this biosensor was integrated with field-programmable gate array (FPGA) board and discrete components for prototyping a FPW readout system, whose maximum error was 12.378 kHz to ensure that the linearity of detection up to R-square is equal to 0.9992.

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Section: Fabrication Of Fpw-based Thc Biosensor and Design Of Readmentioning

confidence: 99%

Highly Sensitive FPW-Based Microsystem for Rapid Detection of Tetrahydrocannabinol in Human Urine

Lan

Hsieh

Huang

et al. 2017

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

A wide range and high conversion gain power detector for frequency shift sensing applications

Cited by 1 publication

References 12 publications

Highly Sensitive FPW-Based Microsystem for Rapid Detection of Tetrahydrocannabinol in Human Urine

Highly Sensitive FPW-Based Microsystem for Rapid Detection of Tetrahydrocannabinol in Human Urine

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