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2. 发明申请

US20160069728A1 Robust Dynamical Method and Device for Detecting the Level of a Liquid Using Resistance Temperature Detectors 有权
标题翻译：使用电阻温度检测器检测液位的鲁棒动力学方法和装置
公开(公告)号：US20160069728A1
公开(公告)日：2016-03-10
申请号：US14836963
申请日：2015-08-27
申请人： Bruker BioSpin AG
发明人： Dmitry Eshchenko , Robert Schauwecker
IPC分类号： G01F23/24
CPC分类号： G01F23/247 , G01F23/248
摘要： A method for indicating the level of a liquefied gas in a cryogenic tank having a resistance temperature detector (1). The controller applies a heating pulse to the detector and performs a single resistance measurement after the heating pulse. The overheating of the sensor and the time interval for the measurement are found in a separate set of test experiment. As a result, for temperature sensors with negative temperature coefficient, the resistance of the sensor in gas is below some unique characteristic value, which can be used like a threshold criterion to distinguish between the liquid and the gas in a wide temperature range. For sensors with positive temperature coefficient, the resistance of the sensor in gas is larger than some unique characteristic value, which can be used like a threshold criterion to distinguish between the liquid and the gas in a wide temperature range.
摘要翻译：一种用于指示具有电阻温度检测器（1）的低温罐中的液化气体的水平的方法。控制器将加热脉冲施加到检测器，并在加热脉冲后执行单个电阻测量。传感器的过热和测量的时间间隔分别在一组测试实验中找到。结果，对于具有负温度系数的温度传感器，气体中的传感器的电阻低于一些独特的特征值，其可以像阈值标准一样使用以在宽温度范围内区分液体和气体。对于具有正温度系数的传感器，传感器在气体中的电阻大于一些独特的特征值，可以像阈值标准一样使用，以在宽温度范围内区分液体和气体。

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