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公开(公告)号：US4165651A
公开(公告)日：1979-08-28
申请号：US834481
申请日：1977-09-19
Applicant: Everett O. Olsen , James R. La Croix , Hoel L. Bowditch
Inventor： Everett O. Olsen , James R. La Croix , Hoel L. Bowditch
CPC classification number: G01L9/0013 , G01L13/025
Abstract: A differential-pressure measuring instrument comprising a main body assembly with a pair of diaphragms each subject to a respective fluid pressure. The diaphragms enclose a sealed chamber containing a fill-liquid surrounding a non-magnetic vibratable wire which is tensioned in accordance with the applied differential pressure. A magnetic field passes transversely through the wire, and electrical current is supplied to the wire by electronic circuit means to produce a vibratory force on the wire as a result of interaction between the electrical current and the magnetic field.
Abstract translation: 一种差压测量仪器，包括具有一对隔膜的主体组件，每个隔膜受到相应的流体压力。 隔膜包围密封室，其包含围绕非磁性可振动电线的填充液体，其根据施加的压差被张紧。 磁场横向穿过导线，并且电流通过电子电路装置提供给导线，由于电流和磁场之间的相互作用而在线上产生振动力。
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2.发明授权Vibratable-wire instrument having an improved temperature compensating technique 失效具有改进的温度补偿技术的振动线仪器
公开(公告)号：US4165652A
公开(公告)日：1979-08-28
申请号：US911869
申请日：1978-06-02
Applicant: Everett O. Olsen , James R. La Croix , Donald C. Simpson
Inventor： Everett O. Olsen , James R. La Croix , Donald C. Simpson
CPC classification number: G01L9/0013
Abstract: A differential-pressure measuring instrument includes a pair of diaphragms each subject to a respective fluid pressure. The diaphragms enclose a sealed chamber containing a fill-liquid surrounding a non-magnetic vibratable-wire which is tensioned in accordance with the applied differential pressure.A temperature compensating inductor is connected in parallel with the vibratable-wire to compensate for variationsin the vibrating frequency of the wire due to changes in the viscosity of the fill-liquid with temperature.
Abstract translation: 差压测量仪器包括一对每个受到相应流体压力的隔膜。 隔膜包围一个密闭的室，其中包含围绕着一个非磁性可振动电线的填充液体，该液体根据施加的压差被张紧。
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