Resolution in QCM sensors for the viscosity and density of liquids: application to lead acid batteries.
Resolution in QCM sensors for the viscosity and density of liquids: application to lead acid batteries.
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DOI：
10.3390/s120810604
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Marcos-Acevedo J
中科院分区：
文献类型：
--
作者：
Cao-Paz AM;Rodríguez-Pardo L;Fariña J;Marcos-Acevedo J
在电池应用中，特别是在汽车、潜艇和远程通信中，为了有效地管理电池，需要使用荷电状态(SoC)。最广泛使用的物理参数是电解液密度。然而，与密度和SOC相比，电解液粘度和SOC之间存在更大的相关性。介绍了一种用于铅酸蓄电池电解液密度-粘度产品测量的石英晶体微天平传感器。传感器在电池电解液范围内的硫酸溶液中进行校准，以获得灵敏度、噪声和分辨率。此外，还进行了将石英晶体放置在电池内的实时充放电测试。同时，确定了目前测量液体介质密度-粘性积平方根或QCM振荡器所能达到的最佳分辨率的理论“分辨率极限”。结果表明，分辨率下限只取决于被研究液体的性质，而不取决于频率。当液体的密度-粘度积增加时，QCM测量的分辨率极限变差，但不能通过提高工作频率来改善它。
In battery applications, particularly in automobiles, submarines and remote communications, the state of charge (SoC) is needed in order to manage batteries efficiently. The most widely used physical parameter for this is electrolyte density. However, there is greater dependency between electrolyte viscosity and SoC than that seen for density and SoC. This paper presents a Quartz Crystal Microbalance (QCM) sensor for electrolyte density-viscosity product measurements in lead acid batteries. The sensor is calibrated in H2SO4 solutions in the battery electrolyte range to obtain sensitivity, noise and resolution. Also, real-time tests of charge and discharge are conducted placing the quartz crystal inside the battery. At the same time, the present theoretical “resolution limit” to measure the square root of the density-viscosity product of a liquid medium or best resolution achievable with a QCM oscillator is determined. Findings show that the resolution limit only depends on the characteristics of the liquid to be studied and not on frequency. The QCM resolution limit for measurements worsens when the density-viscosity product of the liquid is increased, but it cannot be improved by elevating the work frequency.
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DOI：
10.1109/tim.2008.922104
发表时间：
2008-10-01
影响因子：
5.6
作者：
Rodriguez-Pardo, Loreto;Farina Rodriguez, Jose;Brendel, Remi
通讯作者：
Brendel, Remi
影响因子：
7.4
作者：
MARTIN, SJ;GRANSTAFF, VE;FRYE, GC
通讯作者：
FRYE, GC
DOI：
10.1109/tuffc.2007.490
发表时间：
2007-10-01
影响因子：
3.6
作者：
Rodriguez-Pardo, Loreto;Farina, Jose;Brendel, Remi
通讯作者：
Brendel, Remi
DOI：
10.3390/s8010370
发表时间：
2008-01-21
期刊：
Sensors (Basel, Switzerland)
影响因子：
--
作者：
Arnau A
通讯作者：
Arnau A
影响因子：
3.9
作者：
Cao-Paz, Ana M.;Marcos-Acevedo, Jorge;Doval-Gandoy, Jesus
通讯作者：
Doval-Gandoy, Jesus