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1. 发明申请

WO1994015190A1 METHOD AND DEVICE FOR MONITORING A FLEXIBLE FLUID CONTAINER 审中-公开
标题翻译：用于监测柔性流体容器的方法和装置
公开(公告)号：WO1994015190A1
公开(公告)日：1994-07-07
申请号：PCT/SE1993001099
申请日：1993-12-21
申请人： LINDE, Ove , TYRÉN, Carl, H.
IPC分类号： G01L09/16
CPC分类号： G01L19/086 , A61F5/445 , G01L9/0004
摘要： Method and device for monitoring a signal being generated in dependence of the extension of said bag and being transmitted to a recording unit (17) remotely of said bag (18). At least one electric resonant circuit (11) is provided at said stoma bag (18) and is driven to an oscillating condition at a resonant frequency significant to said resonant circuit (11) while transmitting to ether a signal comprising electromagnetic energy. The resonant frequency is varied in dependence of the extension/stretching of said stoma bag (18) and the variation of resonant frequency is recorded in a receiver (16) in said recording unit (17) to generate, at certain conditions, an alarm. Said electric resonant circuit (11) comprises a resonant frequency determining means (18) interacting with the extension of said stoma bag (18), and an exciting means (15) is provided for driving said electric resonant circuit (11) to resonance.
摘要翻译：用于监视根据所述袋的延伸而产生的信号并被传送到远离所述袋（18）的记录单元（17）的方法和装置。在所述造口袋（18）处提供至少一个电谐振电路（11），并且以对所述谐振电路（11）有效的谐振频率被驱动到振荡状态，同时向乙醚传输包括电磁能的信号。谐振频率根据所述造口袋（18）的延伸/拉伸而变化，并且谐振频率的变化被记录在所述记录单元（17）中的接收器（16）中，以在某些条件下产生报警。所述电谐振电路（11）包括与所述造口袋（18）的延伸部相互作用的谐振频率确定装置（18），并且提供用于驱动所述电谐振电路（11）谐振的激励装置（15）。

2. 发明申请

WO1993022643A1 METHOD AND APPARATUS FOR MEASUREMENT OF FORCES AND PRESSURES USING TENSIONED BELLOWS 审中-公开
标题翻译：用于测量强度和压力的方法和装置
公开(公告)号：WO1993022643A1
公开(公告)日：1993-11-11
申请号：PCT/US1992003726
申请日：1992-05-05
申请人： THE SLOPE INDICATOR COMPANY, INC. , SHOUP, Dale , CLEMENTS, David , FELDMAN, Alexander, I.
发明人： THE SLOPE INDICATOR COMPANY, INC.
IPC分类号： G01L09/16
CPC分类号： G01L9/0013 , Y10S73/01
摘要： A method and apparatus for measuring differences between forces, pressures, and combinations thereof. One or more force or pressure deformable members, preferably metal bellows, are internally connected by rigid linkage which is in turn connected to a component for translating force magnitude into corresponding electromagnetic signals. In an embodiment, the apparatus has a pressure chamber (40), an elastic vibrating member (50), an electromagnetic coil (60), a linkage (33), a rigid body (30), a body extension (35), and a bellows (22) defining in part a reference chamber (20). Bellows (22) is attached at bellows fixed end (23) to rigid body (30) and is deformable in response to a difference between a bellows internal reference pressure P0 and any pressure P1 external to bellows (22), such as in pressure chamber (40). Elastic vibrating member (50) is connected at a first end to linkage (33). Linkage (33) projects rigidly from an interior face of movable end (24). Vibrating member (50) is connected to linkage (33), and is connected to body extension (35).
摘要翻译：一种用于测量力，压力及其组合之间的差异的方法和装置。一个或多个力或压力可变形构件，优选金属波纹管，通过刚性连接件内部连接，刚性连接件又连接到用于将力量级转换成对应的电磁信号的部件。在一个实施例中，该装置具有压力室（40），弹性振动件（50），电磁线圈（60），连接件（33），刚体（30），主体延伸部（35）和波纹管（22）部分限定了参考室（20）。波纹管（22）在波纹管固定端（23）附接到刚体（30），并且响应于波纹管内部参考压力P0和波纹管（22）外部的任何压力P1之间的差异而变形，例如在压力室（40）。弹性振动件（50）在第一端连接到连接件（33）上。连杆（33）从可动端（24）的内表面刚性地突出。振动构件（50）连接到联动装置（33），并连接到主体延伸部（35）。

3. 发明申请

WO1993004349A1 MAGNETOSTRICTIVE PRESSURE SENSOR 审中-公开
标题翻译：磁感应压力传感器
公开(公告)号：WO1993004349A1
公开(公告)日：1993-03-04
申请号：PCT/GB1992001551
申请日：1992-08-21
申请人： SCIENTIFIC GENERICS LIMITED , CROSSFIELD, Michael, David
发明人： SCIENTIFIC GENERICS LIMITED
IPC分类号： G01L09/16
CPC分类号： G01L9/16 , B60C23/0408
摘要： A piece of magnetostrictive material (5) is arranged as a diaphragm, or is mounted on a separate diaphragm (3), so as to be stressed by a pressure which is to be sensed. The stress will alter the magnetic properties of the piece of magnetostrictive material (5), reducing its permeability and increasing its coercivity. These changes may be detected by applying an alternating magnetic field to the piece of magnetostrictive material (5), and determining the phase and/or amplitude of harmonics in the induced field emitted by the piece of magnetostrictive material (5). In this way, no contact is required between the sensor and the detection circuitry, and therefore they can move relative to each other. In this way, the sensor can be mounted on a vehicle wheel for sensing vehicle tyre pressure, while the detection circuitry is mounted on the vehicle body. In one embodiment the sensor is mounted so as to seal a hole in a vehicle wheel (35), with the piece of magnetostrictive material (5) outside the pressurised volume but subject to the tyre pressure through the hole in the wheel. In this way the sensor can be mounted on the wheel (35) rather than on the tyre (39), without the metal of the wheel (35) interferring with the transmission of magnetic fields between the piece of magnetostrictive material (5) and coils (13, 15, 27) of the detection circuitry. In another embodiment, particularly suited to situations where the sensor does not move relative to the detection circuitry, a coil (45) is wound around the piece of magnetostrictive material (5), so that changes in the permeability of the piece of magnetostrictive material (5) in response to pressure alter the inductance of the coil (45).
摘要翻译：一片磁致伸缩材料（5）被布置为隔膜，或者安装在单独的隔膜（3）上，以便受到要感测的压力的作用。应力将改变磁致伸缩材料（5）的磁性，降低其磁导率并增加其矫顽力。可以通过对磁致伸缩材料片（5）施加交变磁场，以及确定由该磁致伸缩材料片（5）发射的感应场中的谐波的相位和/或振幅来检测这些变化。以这种方式，传感器和检测电路之间不需要接触，因此它们可以相对于彼此移动。以这种方式，传感器可以安装在用于感测车辆轮胎压力的车轮上，同时检测电路安装在车体上。在一个实施例中，传感器被安装成密封车轮（35）中的孔，其中一个磁致伸缩材料（5）在加压体积之外，但是经受轮胎中的孔的轮胎压力。以这种方式，传感器可以安装在轮子（35）而不是在轮胎（39）上，而轮子（35）的金属不会在磁致伸缩材料（5）和线圈（13,15,27）。在另一个实施例中，特别适用于传感器相对于检测电路不移动的情况，线圈（45）缠绕在该磁致伸缩材料（5）周围，使得该磁致伸缩材料片 5）响应于压力改变线圈（45）的电感。

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