公开(公告)号：US4244228A

公开(公告)日：1981-01-13

申请号：US43216

申请日：1979-05-29

申请人： Lutz Lehnhardt

发明人： Lutz Lehnhardt

IPC分类号： G01L7/02 ,  G01L19/06 ,  G01L13/02 ,  G01L13/06

CPC分类号： G01L19/0618 ,  G01L13/025 ,  G01L9/0072

摘要： A pressure transducer, having a measuring element contained in a housing, is acted upon by the pressure to be measured and, due to its elastic properties, also acts as the measuring spring. A measuring transducer presenting no problems as to overload protection, having only small error, and useful with almost any pickup, includes a pressure sensing element consisting of two disc-shaped parts which are tightly joined together, facing each other, so as to form an inside cavity. One of the disc-shaped parts has a central cutout and is connected at the cutout to the housing. An opening in the housing in the vicinity of the central opening leads into the inside cavity. A transmission element is attached centrally to the other disc-shaped parts. The invention can be used in pressure and pressure difference transducers.

摘要翻译： 具有包含在壳体中的测量元件的压力传感器由待测量的压力起作用，并且由于其弹性特性也用作测量弹簧。 没有任何过载保护的问题的测量传感器，具有只有小的误差，并且几乎可用于任何拾取器，包括一个压力传感元件，它由两个彼此面对的紧密接合在一起的盘形部件组成，以形成一个 内腔。 其中一个盘形部件具有中央切口并且在切口处连接到壳体。 在中央开口附近的壳体中的开口通向内腔。 传动元件被集中地附接到另一个盘形部件。 本发明可用于压差传感器。

公开(公告)号：US4379213A

公开(公告)日：1983-04-05

申请号：US209115

申请日：1980-11-21

申请人： Lutz Lehnhardt

发明人： Lutz Lehnhardt

IPC分类号： H04R1/28 ,  H04R1/32 ,  H04R7/02 ,  H04R7/12 ,  H04R9/06 ,  H04R7/14

CPC分类号： H04R9/06 ,  H04R7/12

摘要： A barrel-shaped diaphragm comprising a plurality of barrel stave-like strips with slits forming gaps between them is mounted on the vibration coil of a vibration generator that is based on a housing. A traverse bar which is based on the housing extends up through the center of the diaphragm. A sound conducting member that is cylindrical at the bottom and domed at the top is disposed on the vibration generator, within the diaphragm, and provides a gap of increasing cross-sectional area expanding toward the open upper end of the diaphragm. An inverted pot-shaped top is mounted on the upper end of the diaphragm. This top has an upper end wall with a depending sidewall that tapers in conically near the lower end. A plurality of struts extend obliquely from the tapered portion to the traverse rod to connect the lower end of the top, and thus the upper end of the diaphragm to the rod, and thus to the housing of the fibration generator. In one embodiment the top is filled with sound-damping material; in another a coaxial pipe is provided as a baffle, and sound outlet holes are provided in the top near the lower end. The diaphragm may be made of a single strip that is bent into an annulus. The diaphragm may be coated with sound damping material.

摘要翻译： 包括多个具有在其间形成间隙的狭缝的筒状条带的桶形隔膜安装在基于壳体的振动发生器的振动线圈上。 基于壳体的横杆通过隔膜的中心向上延伸。 在振动发生器的内部，在振动板内设置在底部圆顶形并且顶部顶部的导电构件，并且朝向隔膜的敞开的上端提供了增大的横截面积的间隙。 倒置的盆形顶部安装在隔膜的上端。 该顶部具有上端壁，其具有在下端附近呈圆锥形变细的悬垂侧壁。 多个支柱从锥形部分倾斜延伸到横动杆，以将顶部的下端，从而将隔膜的上端连接到杆，从而连接到振动发生器的壳体。 在一个实施例中，顶部填充有减震材料; 在另一个同轴管道中设置有挡板，并且在下端附近的顶部设置声音出口孔。 隔膜可以由弯曲成环形的单个条带制成。 隔膜可以涂有隔音材料。