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首页> 外文期刊>Measurement Science & Technology >Development, implementation, and characterization of a standalone embedded viscosity measurement system based on the impedance spectroscopy of a vibrating wire sensor
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Development, implementation, and characterization of a standalone embedded viscosity measurement system based on the impedance spectroscopy of a vibrating wire sensor

机译：基于振弦传感器阻抗谱的独立嵌入式粘度测量系统的开发，实施和表征

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摘要

This paper presents an embedded liquid viscosity measurement system based on a vibrating wire sensor. Although multiple viscometers based on different working principles are commercially available, there is still a market demand for a dedicated measurement system capable of performing accurate, fast measurements and requiring little or no operator training for simple systems and solution monitoring. The developed embedded system is based on a vibrating wire sensor that works by measuring the impedance response of the sensor, which depends on the viscosity and density of the liquid in which the sensor is immersed. The core of the embedded system is a digital signal processor (DSP) which controls the waveform generation and acquisitions for the measurement of the impedance frequency response. The DSP also processes the acquired waveforms and estimates the liquid viscosity. The user can interact with the measurement system through a keypad and an LCD or through a computer with a USB connection for data logging and processing. The presented system is tested on a set of viscosity standards and the estimated values are compared with the standard manufacturer specified viscosity values. A stability study of the measurement system is also performed.
机译：本文提出了一种基于振弦传感器的嵌入式液体粘度测量系统。尽管基于不同工作原理的多个粘度计可在市场上买到，但是市场仍然需要一种专用的测量系统，该系统能够执行准确，快速的测量，并且对简单的系统和解决方案监控几乎不需要操作员培训。所开发的嵌入式系统基于振弦式传感器，该传感器通过测量传感器的阻抗响应来工作，该阻抗响应取决于传感器所浸入液体的粘度和密度。嵌入式系统的核心是一个数字信号处理器（DSP），它控制波形的产生和采集，以测量阻抗频率响应。 DSP还处理采集的波形并估计液体粘度。用户可以通过键盘和LCD或通过具有USB连接的计算机与测量系统进行交互，以进行数据记录和处理。所提供的系统在一组粘度标准上进行了测试，并将估计值与标准制造商指定的粘度值进行了比较。还进行了测量系统的稳定性研究。

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