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公开(公告)号：EP0238297A2
公开(公告)日：1987-09-23
申请号：EP87302257.8
申请日：1987-03-17
发明人： Hojo, Hisao
CPC分类号： G01L9/0022 , G01L21/00 , G01L21/30 , G01L21/32
摘要： A gas pressure gauge for measuring the degree of vacuum in a vessel, comprising a gauge support member (3) which is adapted to close and seal an opening in the vessel, and an ionization type pressure gauge (1) which is secured to said gauge support member (3) characterised in that a further pressure gauge (2) which uses a mechanical vibrator (10) adapted to be driven by an electrical or magnetic field is also secured to the gauge support member (3), a control circuit (6) being provided for controlling the operation of the gauges (1,2) so that, when the degree of vacuum in the vessel is below a predetermined value, the further pressure gauge (2) operates and, when the degree of vacuum in the vessel is above the predetermined value, the ionization type pressure gauge (1) operates.
摘要翻译： 一种用于测量容器中的真空度的气体压力计，包括适于闭合和密封容器中的开口的量规支撑构件（3），以及电离型压力计（1），其固定到所述量规 支撑构件（3），其特征在于，使用适于由电场或磁场驱动的机械振动器（10）的另一压力计（2）也固定到所述量规支撑构件（3），控制电路（6） ）被设置用于控制仪表（1,2）的操作，使得当容器中的真空度低于预定值时，另外的压力计（2）操作，并且当容器中的真空度 电离型压力计（1）工作在规定值以上。
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公开(公告)号：EP0238297A3
公开(公告)日：1989-07-19
申请号：EP87302257.8
申请日：1987-03-17
发明人： Hojo, Hisao
CPC分类号： G01L9/0022 , G01L21/00 , G01L21/30 , G01L21/32
摘要： A gas pressure gauge for measuring the degree of vacuum in a vessel, comprising a gauge support member (3) which is adapted to close and seal an opening in the vessel, and an ionization type pressure gauge (1) which is secured to said gauge support member (3) characterised in that a further pressure gauge (2) which uses a mechanical vibrator (10) adapted to be driven by an electrical or magnetic field is also secured to the gauge support member (3), a control circuit (6) being provided for controlling the operation of the gauges (1,2) so that, when the degree of vacuum in the vessel is below a predetermined value, the further pressure gauge (2) operates and, when the degree of vacuum in the vessel is above the predetermined value, the ionization type pressure gauge (1) operates.
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