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61. 发明公开

EP1460402A2 Amplifier for converting charge signal 审中-公开
标题翻译： Verstärkerzum Umwandeln von Ladungssignalen
公开(公告)号：EP1460402A2
公开(公告)日：2004-09-22
申请号：EP04006608.6
申请日：2004-03-18
申请人： FUJI JUKOGYO KABUSHIKI KAISHA
发明人： Kashiwase, Hajime , Watanabe, Hiromichi , Yokoyama, Hiroshi
IPC分类号： G01L23/10 , G01L9/08
CPC分类号： H03F13/00 , G01L9/085 , G01L23/222 , H03F3/45475 , H03F3/45973 , H03F3/70
摘要： A positive charge of a sensor element is charged in a signal converting circuit, is converted into a positive voltage, and is outputted. When the polarity of the charge of the sensor element is inverted to the negative and an output of the signal converting circuit is decreased, the leaked charges are superimposed and become the negative. An automatic correction circuit detects the negative output and discharges the charges so as to set the input to "0". Thus, the offset of the signal level due to the charge leakage is automatically corrected.
摘要翻译：传感器元件的正电荷在信号转换电路中充电，被转换为正电压，并被输出。当传感器元件的电荷的极性反向为负并且信号转换电路的输出减小时，泄漏的电荷被叠加并变为负值。自动校正电路检测负输出并放电，以将输入设置为“0”。因此，由电荷泄漏引起的信号电平的偏移被自动校正。

62. 发明公开

EP1256801A3 Piezometric ground water pressure sensing apparatus 审中-公开
标题翻译：压电度量装置，用于测量Erdbodenwasserdrucks
公开(公告)号：EP1256801A3
公开(公告)日：2003-11-05
申请号：EP02253313.7
申请日：2002-05-13
申请人： Local Link International Limited
发明人： Typson, Julian Peter
IPC分类号： G01N33/24 , E21B47/06 , G01L19/14 , G01L9/00 , G01L9/08
CPC分类号： G01L19/0636 , G01L19/14 , Y10T29/49007
摘要： This invention provides a piezometric device to measure ground water having a fluid container in which the piezometric element is immersed so that it is permanently saturated. Preferably, an opening above the level of the piezometric element allows fluid in a container to be retained and yet equalized with surrounding ground water to provide pressure readings. This avoids the device becoming unreliable should the water level fluctuate. A releasable seal may be placed over the opening into the container 2 to keep the fluid within the housing during transportation.

63. 发明授权

EP0938651B1 DRUCK- UND TEMPERATURSENSOR 失效
标题翻译：压力和温度传感器
公开(公告)号：EP0938651B1
公开(公告)日：2002-02-13
申请号：EP97951907.1
申请日：1997-11-17
申请人： Steinel AG
发明人： STEINEL, Heinrich, Wolfgang , NIER, Ekkehart
IPC分类号： G01K7/01 , G01L9/08 , G01L19/00
CPC分类号： G01L19/0092 , B29C45/77 , B29C45/78 , B29C2945/76006 , B29C2945/7604 , B29C2945/76257 , B29C2945/76287 , B29C2945/76381 , B29C2945/76384 , B29C2945/76454 , B29C2945/76498 , B29C2945/76531 , B29C2945/76735 , B29C2945/76765 , G01K7/015 , G01K7/06 , G01L23/10
摘要： The present invention pertains to a pressure and temperature sensor especially designed to determine the pressure and the temperature levels inside a pressure chamber of an injection moulding system or a similar system, a pressurizing member being operatively fitted with the sensor housing and, once mounted, actuated using the pressure inside the chamber. The pressurizing member is intended to enable a pressure transfer on a sensing device with a piezoelectric effect. During this process, an electric signal generated by the sensing device through an electric contacting system in response to the pressure is let out of the housing through a process consisting in inserting a thermoelectric sensing element into the pressure chamber and letting out through the electric contacting system the electric temperature signal generated by the sensing device.

64. 发明公开

EP0923334A4 MEASUREMENT OF FLUID PRESSURE SUCH AS BLOOD PRESSURE 失效
标题翻译： FLUSSIGKEITSDRUCKMESSUNG，WIE BLUTDRUCKMESSUNG
公开(公告)号：EP0923334A4
公开(公告)日：2000-04-12
申请号：EP96928980
申请日：1996-08-20
申请人： MANOMETRX GROUP LTD
发明人： SURDUT RAYMOND J , BENZ EDWIN H SR , SKOUTAS JAMES P
IPC分类号： A61B5/022 , A61B5/00 , A61B5/021 , G01L9/00 , G01L9/08
摘要： Circuitry and a sensor (2050) suitable for measuring blood pressure are described. The sensor (2050) of the present invention has a flexible piezoelectic material (1011, 1013, 1015) covering the opening of a chamber (1019). The chamber (1019) contains an electrically nonconductive, elastomeric material (1017), and needs no pump to pressurize the chamber (1019). An array of sensors and circuitry for measurement of fluid pressure fluctuation in a flexible environment is given.
摘要翻译：描述了适用于测量血压的电路和传感器（2050）。本发明的传感器（2050）具有覆盖腔室（1019）的开口的柔性压电材料（1011,1013,1015）。室（1019）包含不导电的弹性体材料（1017），并且不需要泵来加压室（1019）。给出了用于测量柔性环境中的流体压力波动的一系列传感器和电路。

65. 发明授权

EP0552884B1 Pressure transducer with quartz crystal 失效
标题翻译： Quarzkristalldruckwandler
公开(公告)号：EP0552884B1
公开(公告)日：1997-07-09
申请号：EP93300218.0
申请日：1993-01-14
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： Totty, Charles D. , Dennis, John R.
IPC分类号： G01L9/08 , G01L9/00
CPC分类号： G01L9/0022

66. 发明公开

EP0640818A1 Pressure sensor 失效
标题翻译： Druckwandler。
公开(公告)号：EP0640818A1
公开(公告)日：1995-03-01
申请号：EP94113160.9
申请日：1994-08-23
申请人： MURATA MANUFACTURING CO., LTD.
发明人： Nakamura, Takeshi, c/o Murata Manufac. Co., Ltd.
IPC分类号： G01L9/08
CPC分类号： G01L9/0016 , G01L9/0022
摘要： A pressure sensor 10 using a vibrator 11 as a pressure detection means is disclosed. The vibrator 11 includes a diaphragm valve 12. On both principal planes of the diaphragm valve 12, circular piezoelectric bodies 14a and 14b are formed respectively. On one principal plane of the piezoelectric body 14a, a first circular electrode 18a is formed. On one principal plane of the piezoelectric body 14a, a second hollow circular electrode 18b is formed outside the first electrode 18a. On one principal plane of the piezoelectric body 14b, a third circular electrode 20a is formed opposing to the first electrode 18a. On one principal plane of the piezoelectric body 14b, a fourth hollow circular electrode 20b is formed outside the third electrode 20a, opposing to the second electrode 18b. In the diaphragm valve 12, an inside circular portion 12a interposed between the first electrode 18a and the third electrode 20a and an outside circular portion 12b interposed between the second electrode 18b and the fourth electrode 20b vibrate radially in such a manner that they expand and contract in the reverse directions.
摘要翻译：公开了使用振动器11作为压力检测装置的压力传感器10。振动器11包括隔膜阀12.在隔膜阀12的两个主平面上分别形成圆形压电体14a和14b。在压电体14a的一个主平面上形成第一圆形电极18a。在压电体14a的一个主平面上，在第一电极18a的外部形成第二中空圆形电极18b。在压电体14b的一个主平面上，形成与第一电极18a相对的第三圆形电极20a。在压电体14b的一个主平面上，第四中空圆形电极20b形成在与第二电极18b相对的第三电极20a的外部。在隔膜阀12中，介于第一电极18a和第三电极20a之间的内部圆形部分12a和介于第二电极18b和第四电极20b之间的外部圆形部分12b以径向方式振动，使得它们膨胀和收缩在相反的方向。

67. 发明授权

EP0430445B1 Piezoelectric pressure sensor 失效
标题翻译：压电压力传感器。
公开(公告)号：EP0430445B1
公开(公告)日：1995-01-11
申请号：EP90311916.2
申请日：1990-10-31
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Kusakabe, Hiroki , Takigawa, Masuo
IPC分类号： G01L9/08 , G01L23/10
CPC分类号： G01L9/008 , Y10S73/04

68. 发明公开

EP0562031A4 EP0562031A4 - 失效
标题翻译： EP0562031A4 - Google专利
公开(公告)号：EP0562031A4
公开(公告)日：1994-02-23
申请号：EP92903521
申请日：1991-12-12
申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA
发明人： POLLA, DENNIS, L. , TAMAGAWA, TAKASHI
IPC分类号： G01L9/08 , G01L1/16 , G01L9/00 , H01L41/24
CPC分类号： G01L1/16 , H01L41/1876 , H01L41/318
摘要： A microsensor or micromechanical device based upon the piezoelectric properties of thin film lead zirconate titanate (PZT) with a thickness of between 0.1 and 5 microns. The thin film PZT (11) is sandwiched between first and second electrodes (10, 12) which are provided with electrical connection means (14, 15) for electrically connecting the electrodes to a voltage sensor or voltage source (16). The invention also relates to a method for making such microsensor or micromechanical device.
摘要翻译：一种基于薄膜锆钛酸铅（PZT）厚度在0.1和5微米之间的压电性能的微传感器或微机械装置。薄膜PZT（11）夹在设有用于将电极电连接到电压传感器或电压源（16）的电连接装置（14,15）的第一和第二电极（10,12）之间。本发明还涉及制造这种微传感器或微机械装置的方法。

69. 发明公开

EP0574046A2 Piezoelectric-type pressure sensor 失效
标题翻译：压电器Druckwandler。
公开(公告)号：EP0574046A2
公开(公告)日：1993-12-15
申请号：EP93114634.4
申请日：1991-03-15
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Okauchi, Tohru , Kusakabe, Hiroki , Takigawa, Masuo
IPC分类号： G01L9/08 , G01L9/00
CPC分类号： G01L9/008 , G01L19/14
摘要： Members as an upper fixing screw, piezoelectric element (15), a pressure transmitting member (14) are located closer to region of an engine to be measured and the like than a fitting thread portion of a sensor casing so that a pre-stress on the piezoelectric element can be constantly maintained at a predetermined value, thus enabling pressure measurement with a high degree of accuracy. Further, a projecting portion or a spacer is provided on the backside of a pressure receiving surface (13) in order to ensure the surface contact between the pressure transmitting member (14) and the back surface of the pressure receiving surface, thus preventing the stress from concentrating on corners of the bottom surface of the pressure transmitting member.
摘要翻译：作为上固定螺钉的构件，压电元件（15），压力传递构件（14）位于比传感器壳体的装配螺纹部分更靠近待测发动机的区域，使得预应力压电元件可以恒定地保持在预定值，从而能够高精度地进行压力测量。此外，为了确保压力传递部件（14）与受压面的背面之间的表面接触，在受压面（13）的背面设有突出部或间隔件，能够防止受压面集中在压力传递部件的底面的角部。

70. 发明公开

EP0552884A3 Pressure transducer with quartz crystal 失效
标题翻译：压力传感器与QUARTZ水晶
公开(公告)号：EP0552884A3
公开(公告)日：1993-08-18
申请号：EP93300218.0
申请日：1993-01-14
申请人： HALLIBURTON COMPANY
发明人： Totty, Charles D. , Dennis, John R.
IPC分类号： G01L9/08 , G01L9/00
CPC分类号： G01L9/0022
摘要： A pressure transducer comprises a quartz crystal (12) having an orientation within a range of about -25° and about -45° relative to the Z axis of X, Y and Z crystallographic axes. Such a pressure transducer provides a useful pressure response at pressures and temperatures above those of the operating ranges of pressure transducers using AT-cut or BT-cut quartz crystals.

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