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1. 发明授权

US4768384A Mass flow meter operating by the Coriolis principle 失效
标题翻译：质量流量计由科里奥利原理运行
公开(公告)号：US4768384A
公开(公告)日：1988-09-06
申请号：US99558
申请日：1987-09-22
申请人： Peter Flecken , Niels Abildgaard
发明人： Peter Flecken , Niels Abildgaard
IPC分类号： G01F1/80 , G01F1/84 , G01F15/02
CPC分类号： G01F1/8409 , G01F1/8413 , G01F1/8431 , G01F1/8436 , G01F1/8495 , G01F15/022
摘要： A mass flow meter operating by the Coriolis principle comprises a mechanical oscillating system having two straight measuring tubes which are clamped at both ends. The mechanical oscillating system is arranged axially in a support tube. In the center of the measuring tubes an oscillation exciter is disposed which sets the two measuring tubes into oppositely phased flexural oscillations. Oscillation sensors sensing the mechanical oscillations at equal distances on both sides of the oscillation exciter generate electrical oscillation sensor signals which are characteristic of the frequency and phase position of the sensed oscillations. An evaluation circuit receives the oscillation sensor signals and generates from their phase difference a measuring signal indicating the measured value of the mass flow. A first temperature sensor is arranged such that it measures the temperature of the support tube and generates a first temperature sensor signal indicating said temperature. A second temperature sensor is so arranged that it measures the temperature of the mechanical oscillating system and generates a second temperature sensor signal indicating said temperature. A correction circuit receives the two temperature sensor signals and imparts to the measuring signal on the basis of the temperatures measured a correction for eliminating the temperature influence on the measurement result.
摘要翻译：由科里奥利原理操作的质量流量计包括一个机械摆动系统，其具有夹在两端的两根直的测量管。机械振荡系统轴向地布置在支撑管中。在测量管的中心设置振荡激励器，其将两个测量管设置成相反的弯曲振荡。感应振荡激励器两侧相等距离的振荡传感器产生电振荡传感器信号，这些信号是感测振荡的频率和相位位置的特征。评估电路接收振荡传感器信号，并从它们的相位差产生表示质量流的测量值的测量信号。第一温度传感器被布置成使得其测量支撑管的温度并产生指示所述温度的第一温度传感器信号。第二温度传感器被布置成使得其测量机械振荡系统的温度，并产生指示所述温度的第二温度传感器信号。校正电路接收两个温度传感器信号，并根据测量的温度赋予测量信号以消除温度对测量结果的影响。

2. 发明授权

US4793191A Mass flow meter operating by the cariolis principle 失效
标题翻译：质量流量计由卡里奥利原理运行
公开(公告)号：US4793191A
公开(公告)日：1988-12-27
申请号：US99484
申请日：1987-09-22
申请人： Peter Flecken , Niels Abildgaard
发明人： Peter Flecken , Niels Abildgaard
IPC分类号： G01F1/80 , G01F1/84
CPC分类号： G01F15/185 , G01F1/8409 , G01F1/8413 , G01F1/8495
摘要： A mass flow meter operating by the Coriolis principle includes a mechanical oscillating system having two straight measuring tubes which are clamped at both ends. In the center of the measuring tubes an oscillation exciter is disposed which sets the two measuring tubes into oppositely phased flexural oscillations. The mechanical oscillations are sensed by oscillation sensors which are arranged at equal distances on both sides of the oscillation exciter. The phase displacement of the sensed oscillations is a measure of the mass flow. The mechanical oscillating system is arranged axially in a support tube. For decoupling the mechanical oscillations from the support tube the mechanical oscillating system is freely suspended in the support tube at each end by an annular diaphragm. The entire mechanical oscillating system including the diaphragms preferably consists of titanium.
摘要翻译：由科里奥利原理操作的质量流量计包括一个机械摆动系统，其具有两个夹紧在两端的直的测量管。在测量管的中心设置振荡激励器，其将两个测量管设置成相反的弯曲振荡。机械振荡由振荡激励器两侧相等距离的振荡传感器感测。感测振荡的相位位移是质量流量的量度。机械振荡系统轴向地布置在支撑管中。为了将机械振荡与支撑管分离，机械摆动系统在每一端通过环形隔膜自由地悬挂在支撑管中。包括隔膜的整个机械摆动系统优选地由钛组成。

3. 发明授权

US4545259A Ultrasonic measuring apparatus 失效
标题翻译：超声波测量仪器
公开(公告)号：US4545259A
公开(公告)日：1985-10-08
申请号：US538203
申请日：1983-10-03
申请人： Hans-Erik K. Jensen , Niels Abildgaard , Steen H. Nielsen
发明人： Hans-Erik K. Jensen , Niels Abildgaard , Steen H. Nielsen
IPC分类号： G01P5/00 , G01F1/66 , G01P5/24
CPC分类号： G01F1/662 , G01P5/245
摘要： The invention relates to an ultrasonic measuring apparatus of the type having a measuring path which extends in a tube between two ultrasonic converters. More accurate measuring results are obtained by providing axially spaced inserts in the measuring tube for changing the velocity profile of the medium flowing through the tube so that the average of the upstream and downstream signals is substantially proportional to the mean flow velocity of the medium flowing through the tube.
摘要翻译：本发明涉及一种具有在两个超声波转换器之间的管中延伸的测量路径的超声波测量装置。通过在测量管中提供轴向间隔的插入件来获得更精确的测量结果，用于改变流过管的介质的速度分布，使得上游和下游信号的平均值基本上与流过的介质的平均流速成比例管子。

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