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A Surface Acoustic Wave-Based PM 1.0 Fine Dust Detection System Using Full Digital Time-Interleaved Counters.
Kim, Chang-Hyeon; Yang, Ki-Hoon; Song, Yeon-Seob; Yoo, Sang-Sun; Pu, Younggun; Kim, Il-Hwan; Chung, Seok-Whan; Choi, Kwang-Wook; Park, Jun-Eun; Lee, Kang-Yoon.
Afiliación
  • Kim CH; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Yang KH; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Song YS; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Yoo SS; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Pu Y; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Kim IH; Samsung Advanced Institute of Technology, Suwon 16706, Republic of Korea.
  • Chung SW; Samsung Advanced Institute of Technology, Suwon 16706, Republic of Korea.
  • Choi KW; Samsung Advanced Institute of Technology, Suwon 16706, Republic of Korea.
  • Park JE; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Lee KY; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Sensors (Basel) ; 24(13)2024 Jun 26.
Article en En | MEDLINE | ID: mdl-39000932
ABSTRACT
This paper proposed a fine dust detection system using time-interleaved counters in which surface acoustic wave (SAW) sensors changed the resonance point characteristic. When fine dust was applied to the SAW sensor, the resonance point decreased. The SAW oscillator made of the SAW sensor and radio frequency (RF) amplifier generated an oscillation frequency that was the same as the resonance frequency. The oscillation frequency was transferred to digital data by a 20-bit asynchronous counter. This system has two channels a sensing channel and a reference channel. Each channel has a SAW oscillator and a 20-bit asynchronous counter. The difference of the two channel counter results is the frequency difference. Through this, it is possible to know whether fine dust adheres to the SAW sensor. The proposed circuit achieved 0.95 ppm frequency resolution when it was operated at a frequency of 460 MHz. This circuit was implemented in a TSMC 130 nm CMOS process.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sensors (Basel) Año: 2024 Tipo del documento: Article Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sensors (Basel) Año: 2024 Tipo del documento: Article Pais de publicación: Suiza