Improve the signal-to-noise ratio of a quartz crystal microbalance in an impedance analysis method

Kang, Qi; Qi, Yong; Zhang, Ping; Shen, Dazhong

doi:10.1016/j.talanta.2007.01.060

Cited by 10 publications

(4 citation statements)

References 30 publications

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“…Firstly, a temperature stabilized chamber is needed to improve the unavoidable temperature noise and drift, which is usually used for precise measurement as above mentioned reports. Secondly, the data processing method should be developed instead of the commercial impedance analysis method [11,15]. Finally, a low bandwidth oscillator circuit is preferred instead of a broadband impedance analyzer [6,16].…”

Section: Resultsmentioning

confidence: 99%

An Experimental Study on Fabricating an Inverted Mesa-Type Quartz Crystal Resonator Using a Cheap Wet Etching Process

Liang

Huang

Tian

et al. 2013

Sensors

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In this study, a miniaturized high fundamental frequency quartz crystal microbalance (QCM) is fabricated for sensor applications using a wet etching technique. The vibration area is reduced in the fabrication of the high frequency QCM with an inverted mesa structure. To reduce the complexity of the side wall profile that results from anisotropic quartz etching, a rectangular vibration area is used instead of the conventional circular structure. QCMs with high Q values exceeding 25,000 at 47 MHz, 27,000 at 60 MHz, 24,000 at 73 MHz and 25,000 at 84 MHz are fabricated on 4 × 4 mm2 chips with small vibration areas of 1.2 × 1.4 mm2. A PMMA-based flow cell is designed and manufactured to characterize the behavior of the fabricated QCM chip in a liquid. Q values as high as 1,006 at 47 MHz, 904 at 62 MHz, 867 at 71 MHz and 747 at 84 MHz are obtained when one side of the chip is exposed to pure water. These results show that fabricated QCM chips can be used for bio- and chemical sensor applications in liquids.

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Section: Resultsmentioning

confidence: 99%

An Experimental Study on Fabricating an Inverted Mesa-Type Quartz Crystal Resonator Using a Cheap Wet Etching Process

Liang

Huang

Tian

et al. 2013

Sensors

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“…1. And ' s f in the last column refer to the resonant frequency obtained through the method in [5]. .…”

Section: Results and Analysesmentioning

confidence: 99%

“…And such a computing method's uncertainty is evaluated through Monte Carlo mathematical simulation. An experiment about the temperature effects on the QCM C0 C q Rq Lq equivalent circuit parameters is performed and the results were compared with the algorithm of computing resonant frequency demonstrated in [5].…”

Section: Introductionmentioning

confidence: 99%

Computation of Equivalent Circuit Parameters of QCM and Evaluation of the Measurement Uncertainties

Zheng¹,

Meng²,

Wang³

et al. 2012

Proceedings of the 2nd International Conference on Electronic and Mechanical Engineering and Information Technology (2012)

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Abstract. This paper presents an approach of computing the parameters of quartz crystal microbalance (QCM) equivalent circuit model using the least squares algorithm in MATLAB. Modification of the measured data's order in the least squares algorithm was implemented so that the precision was improved. Compared with nonlinear least squares algorithm, the computation method in this paper was faster and simpler with little lower accuracy. Moreover, Monte Carlo Method was utilized to evaluate the measurement uncertainties. An experiment on the temperature response of QCM's equivalent circuit parameters was performed to show that the proposed approach was accurate and fast. The measurement errors are less than 0.6%.

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“…Furthermore, ensuring a maximized signal-to-noise ( SNR ) ratio is important for accurate interpretations. Thus, the analyzer selection should take such points into consideration [ 63 , 74 ]. Other electronic characterization techniques based on lock-in oscillator concepts were also introduced in literature to overcome the problem for fast QCM applications [ 75 ].…”

Section: Qcm Electronic Interfacing Systems For Sensing Applicatiomentioning

confidence: 99%

Quartz Crystal Microbalance Electronic Interfacing Systems: A Review

Alassi

Benammar

Brett

2017

Sensors

150

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Quartz Crystal Microbalance (QCM) sensors are actively being implemented in various fields due to their compatibility with different operating conditions in gaseous/liquid mediums for a wide range of measurements. This trend has been matched by the parallel advancement in tailored electronic interfacing systems for QCM sensors. That is, selecting the appropriate electronic circuit is vital for accurate sensor measurements. Many techniques were developed over time to cover the expanding measurement requirements (e.g., accommodating highly-damping environments). This paper presents a comprehensive review of the various existing QCM electronic interfacing systems. Namely, impedance-based analysis, oscillators (conventional and lock-in based techniques), exponential decay methods and the emerging phase-mass based characterization. The aforementioned methods are discussed in detail and qualitatively compared in terms of their performance for various applications. In addition, some theoretical improvements and recommendations are introduced for adequate systems implementation. Finally, specific design considerations of high-temperature microbalance systems (e.g., GaPO 4 crystals (GCM) and Langasite crystals (LCM)) are introduced, while assessing their overall system performance, stability and quality compared to conventional low-temperature applications.

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Improve the signal-to-noise ratio of a quartz crystal microbalance in an impedance analysis method

Cited by 10 publications

References 30 publications

An Experimental Study on Fabricating an Inverted Mesa-Type Quartz Crystal Resonator Using a Cheap Wet Etching Process

An Experimental Study on Fabricating an Inverted Mesa-Type Quartz Crystal Resonator Using a Cheap Wet Etching Process

Computation of Equivalent Circuit Parameters of QCM and Evaluation of the Measurement Uncertainties

Quartz Crystal Microbalance Electronic Interfacing Systems: A Review

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