A Single Channel Concurrent Data Transmission System for Detection of 4-Electrode Dissolved Oxygen and Temperature

被引：0

作者：

Nag, Amlan ^{[1
]}

Narayan, Tarun ^{[2
]}

O'Riordan, Alan ^{[2
]}

Lovera, Pierre ^{[2
]}

Mitra, Srinjoy ^{[1
]}

机构：

[1] Univ Edinburgh, Edinburgh, Midlothian, Scotland

[2] Tyndall Natl Inst, Cork, Ireland

来源：

2022 20TH IEEE INTERREGIONAL NEWCAS CONFERENCE (NEWCAS) | 2022年

基金：

欧盟地平线“2020”;

关键词：

4 Electrode DO; On-chip temperature sensor; Dual sensing; PTAT oscillator; Triple data transmission; water quality; SENSORS;

D O I：

10.1109/NEWCAS52662.2022.9842084

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

We propose a time domain analog front-end for real time water quality monitoring which can simultaneously detect dissolved oxygen (DO) concentration and temperature and transmit on a single ISM frequency band. The DO information changes the centre frequency of an oscillator and a delay line switches the oscillator ON/OFF, where it's ON/OFF time depends on the ambient temperature. A power amplifier (PA) sends that signal to an antenna which can choose among three different power supplies to have variable output swings depending on the present operating voltametric range. Therefore, the PA output essentially combines and transmits three data simultaneously over a single channel of the 2.4GHz ISM band. The linear ranges of amperometric and temperature measurement circuits are +/- 200nA and 2 degrees C-60 degrees C (with 4 different sensitivities) having average R-2 linearity of 0.99993 and 0.9997. Their respective noise levels are 40.4 pA and 0.33 ppm/ degrees C

引用

页码：60 / 64

页数：5

共 32 条

[1] Electrochemical time-of-flight responses at double-band generator-collector devices under pulsed conditions
Amatore, Christian
Sella, Catherine
Thouin, Laurent
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2006, 593 (1-2): : 194 - 202
[2] [Anonymous], ISSCC
[3] Generator-collector double electrode systems: A review
Barnes, Edward O.
Lewis, Grace E. M.
Dale, Sara E. C.
Marken, Frank
Compton, Richard G.
[J]. ANALYST, 2012, 137 (05) : 1068 - 1081
[4] Battistuzzi G, 2001, EUR J INORG CHEM, P2989
[5] Microelectrode generator-collector systems for electrolytic titration: theoretical and practical considerations
Bell, Christopher G.
Seelanan, Parinya
O'Hare, Danny
[J]. ANALYST, 2017, 142 (21) : 4048 - 4057
[6] A comparison between potentiostatic circuits with grounded work or auxiliary electrode
Busoni, L
Carlà, M
Lanzi, L
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2002, 73 (04) : 1921 - 1923
[7] A Portable Analog Lock-In Amplifier for Accurate Phase Measurement and Application in High-Precision Optical Oxygen Concentration Detection
Chen, Xi
Chang, Jun
Wang, Fupeng
Wang, Zongliang
Wei, Wei
Liu, Yuanyuan
Qin, Zengguang
[J]. PHOTONIC SENSORS, 2017, 7 (01) : 27 - 36
[8] A Microwatt Dual-Mode Electrochemical Sensing Current Readout With Current-Reducer Ramp Waveform Generation
Chen, Yi-Chia
Lu, Shao-Yung
Liao, Yu-Te
[J]. IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, 2019, 13 (06) : 1163 - 1174
[9] CMOS-based phase fluorometric oxygen sensor system
Chodavarapu, Vamsy P.
Shubin, Daniil O.
Bukowski, Rachel M.
Titus, Albert H.
Cartwright, Alexander N.
Bright, Frank V.
[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2007, 54 (01) : 111 - 118
[10] Design of Smart Sensors for Real-Time Water Quality Monitoring
Cloete, Niel Andre
Malekian, Reza
Nair, Lakshmi
[J]. IEEE ACCESS, 2016, 4 : 3975 - 3990

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