公开(公告)号：US4640135A

公开(公告)日：1987-02-03

申请号：US745282

申请日：1985-06-14

申请人： Walter Kastel ,  Wolfgang Geiger

发明人： Walter Kastel ,  Wolfgang Geiger

IPC分类号： G01L13/00 ,  G01L7/08 ,  G01L19/06

CPC分类号： G01L19/0645

摘要： A pressure sensor has a housing in which at least two diaphragms are secured in such a manner that they include a volume which is filled with a hydraulic fluid. The incompressible hydraulic fluid serves to transmit pressure between the diaphragms. For introducing the hydraulic fluid one diaphragm is provided with an opening. A narrow tube is connected in fluid-tight manner to the edge of the opening. The hydraulic fluid is introduced through the initially still open end of the narrow tube. After the filling with hydraulic fluid the open end of the narrow tube is sealed in fluid-tight manner, for example by squeezing. The narrow tube can serve at the same time a force-transmitting or travel-transmitting member which connects the diaphragm to a force or travel sensor.

摘要翻译： 压力传感器具有壳体，其中至少两个隔膜以这样的方式固定，使得它们包括填充有液压流体的容积。 不可压缩的液压流体用于在隔膜之间传递压力。 为了引入液压流体，一个隔膜设有开口。 窄管以流体密封的方式连接到开口的边缘。 液压流体通过狭窄管的初始静止开口端引入。 在用液压流体填充之后，窄管的开口端以流体密封的方式密封，例如通过挤压。 窄管可以同时用于将隔膜连接到力或行进传感器的力传递或行进传递构件。

公开(公告)号：US4548086A

公开(公告)日：1985-10-22

申请号：US521890

申请日：1983-08-10

申请人： Walter Kastel

发明人： Walter Kastel

IPC分类号： F16F1/18 ,  G01D5/02 ,  G01D5/16 ,  G01L1/22 ,  G01L9/00

CPC分类号： G01D5/02 ,  G01L1/2206 ,  G01L9/006

摘要： A deflecting spring for distance or force measurement, particularly suited for use in force or pressure gauges and made of an areal spring material is provided with a force introducing section (2), a clamping section (6), and an intermediate section (45) connected to the first two sections (2,6) by flexural webs (10-13) which are equipped with sensor elements serving to convert bending into electrical signals. The intermediate section comprises two part sections (4,5) disposed at either side of an axis of symmetry (S) of the deflecting spring and each connected by a first web (10,11) with the force introducing section and by a second web (12,13) with the clamping section (6). By virtue of this design of the deflecting spring the respective webs belonging to a part section each are deflected in opposite directions when the force introducing section (3) is bended so that also opposite output signals are generated by the sensor elements. When the latter are applied to one side of the deflecting spring they may be combined in such manner in a full bridge circuit that measuring errors are compensated.

摘要翻译： 用于距离或力测量的偏转弹簧，特别适合用于力或压力计并由面弹簧材料制成，具有力引入部分（2），夹紧部分（6）和中间部分（45） 通过弯曲腹板（10-13）连接到前两个部分（2,6），所述弯曲腹板装备有用于将弯曲变换成电信号的传感器元件。 中间部分包括设置在偏转弹簧的对称轴线（S）的任一侧的两个部分部分（4,5），并且每个部分部分（4,5）通过第一腹板（10,11）与力引入部分和第二腹板 （12,13）与夹紧部分（6）。 由于偏转弹簧的这种设计，当力引入部分（3）弯曲时，属于部分部分的各个腹板在相反方向上被偏转，使得传感器元件也产生相反的输出信号。 当后者被施加到偏转弹簧的一侧时，它们可以以这样的方式组合在全桥电路中，以测量误差被补偿。