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    • 44. 发明公开
    • Kapazitiver Weg-Frequenz-Messgrössenwandler, insbesondere Druck-Frequenz-Wandler
    • 电容方式变频器被测,特别是压频率换能器。
    • EP0132222A1
    • 1985-01-23
    • EP84810239.8
    • 1984-05-15
    • KERN & CO. AG Werke für Präzisionsmechanik Optik und Elektronik
    • Meier, Dietrich, Dr.
    • G01L9/12G01L9/00G01D5/24
    • G01L11/04G01L9/0086G01L9/125
    • Eine vom zu messenden Druck beaufschlagte Druckmessdose (10,11) an sich bekannter Art ist in einem Leitungsresonator (27) als frequenzbestimmendes Element angeordnet. Der Leitungsresonator (27) besteht aus einem hohlen Kreiszylinder (1) mit einer Grundplatte (2). Im Zentrum der Grundplatte (2) ist achsial ein Mittelzylinder (3) befestigt, der kürzer als der Hohlzylinder (1) ist und auf seiner freien Stimfläche (4) die Druckmessdose (10, 11) trägt. Der Druckmessdose (10,11) gegenüber ist im Abstand eine Deckplatte (6) auf den Hohlzylinder (1) derart aufgeschraubt, dass sich ein elektrisch leitender Kontakt zwischen den Innenflächen von Deckplatte (6) und Hohlzylinder (1) ergibt. In der Grundplatte (2) sind zwei Oeffnungen (14 bzw. 16) zur Ein-bzw. Auskopplung elektromagnetischer Energie mit einer einstellbaren Frequenz um 500 MHz vorgesehen. Mit einer elektrischen Detektionsschaltung lässt sich die druckabhängige Resonanzfrequenz des Resonators (27) und daraus mit hoher Auflösung und Reproduzierbarkeit der Druck der im Resonator (27) befindlichen Luft bestimmen.
    • 1.电容暴露于压力位移频换能器,特别是压力频换能器与至少一个金属膜(10,11)被测量并且其位置相对于变化到在依赖性的反电极(6) 所测量的量的,所述膜(11)被布置在一条线上谐振器(27),其被提供用于向所述线谐振器(27)将可调频率的高频电磁能量的频率确定性采矿元件和装置(18)和所述线 谐振器被耦合到一个检测电路(25,26,28,29,20,21),用于调谐所述高频能量的频率,以所述线谐振器(27)的共振频率,从而为特征,没有金属膜(11 )是气压电池(10,11的一部分),也做了线谐振器(27)由两个同心的圆柱体(1,3)用一个共同的基片(2)和两种不同长度的,气压细胞(10 ,11)被固定到所述鞋面˚F ACE(4)的更短的内筒(3)具有间隙,以在盖板(6)和所述较长的外筒(1)调查的内表面,在导电连接做了金属膜之间存在(11) 和金属表面共同导电由...组成的内筒(3),外筒(1)和基座和盖板(2,6)连接在两个料筒所述表面的内表面的外表面的。
    • 46. 发明公开
    • Capacitive pressure transducer
    • 卡普塔特
    • EP0061359A1
    • 1982-09-29
    • EP82400191.1
    • 1982-02-04
    • THE BENDIX CORPORATION
    • Ohnesorge, David HenryAntonazzi, Frank Joseph
    • G01L9/12
    • G01L9/12G01L9/0075G01L9/0086
    • Capacitive pressure transducer (26) having a multiplicity of signal plates (Cs, Cr, Csf, Crf) disposed on a first quartz disc (88). Opposing the signal plates (Cs, Cr, Csf, Crf) across a gap formed by an annular frit (92) is a common plate (94) disposed on a second quartz disc (86). The signal plates (Cs, Cr, Csf, Crf) and common plate (94) form capacitors which are operable to modulate alternating excitation signals applied to the signal plates. The capacitances vary the modulation during deflections of the discs (86,88) as a result of pressure changes and the common plate (94) algebraically sums the modulated excitation signals into a single output from the transducer (26).
    • 具有设置在第一石英盘(88)上的多个信号板(Cs,Cr,Csf,Crf)的电容式压力传感器(26)。 跨越由环形玻璃料(92)形成的间隙的信号板(Cs,Cr,Csf,Crf)是设置在第二石英盘(86)上的公共板(94)。 信号板(Cs,Cr,Csf,Crf)和公共板(94)形成可用于调制施加到信号板的交替激励信号的电容器。 电容由于压力变化而导致盘(86,88)偏转期间的调制,并且公共板(94)将调制的激励信号代数地与来自换能器(26)的单个输出相加。
    • 48. 发明授权
    • Pressure sensor
    • 压力传感器
    • US4541283A
    • 1985-09-17
    • US632318
    • 1984-07-19
    • Wolfgang Stuhlmann
    • Wolfgang Stuhlmann
    • G01L9/00G01L9/12
    • G01L9/0086
    • A pressure sensor for monitoring a pressure of an agressive media in a pressure range of about 0.8 to 50 bar, especially for monitoring refrigeration plants, air conditioning plants, or heat pumps, with the sensor including at least one pressure transducer and a mechanical-electric transducer connected to the pressure transducer with the mechanical-electric transformer being in the form of a plate condenser. The pressure transducer and the mechanical-electric transducer are disposed laterally adjacent each other and connected together by a relatively long transmission lever which is mounted at only one end thereof whereby it is possible, in a relatively small space, to realize a large transmission ratio thereby enabling the tying together of the pressure to be determined with a changeable capacity of the plate condenser so that a very steep characteristic line and thus a very high precision of response.
    • 一种压力传感器,用于在约0.8至50巴的压力范围内监测压缩介质的压力,特别是用于监测制冷设备,空调设备或热泵,传感器包括至少一个压力传感器和机械电 传感器连接到压力传感器,机械 - 电力变压器是板式冷凝器的形式。 压力传感器和机械电传感器彼此横向设置,并且由相对较长的传动杆连接在一起,该传动杆仅安装在其一端,由此在较小的空间内可以实现大的传动比 使得能够利用板式冷凝器的可变容量来确定压力的一起,使得非常陡峭的特性线并且因此具有非常高的响应精度。
    • 49. 发明授权
    • Capacitive pressure transducer and method of making same
    • 电容式压力传感器及其制作方法
    • US4426673A
    • 1984-01-17
    • US131417
    • 1980-03-13
    • Robert L. BellRobert WillingFred Kavli
    • Robert L. BellRobert WillingFred Kavli
    • G01L9/00H01G7/00
    • G01L9/0075G01L9/0086Y10T29/43
    • A capacitive pressure transducer comprising a pair of disc shaped members having planar surfaces made from an insulator material, one of the members being several times thinner than the other plate and flexible and constituting a diaphragm and the other thicker plate constituting a stationary plate. A thin conductive film is formed on the surface of each of the members to form the plates of the capacitor. A glass frit is applied on the marginal edge of each member and when the members are held in adjacent relationship, the assembly is fired to seal the two members together while spacing them a predetermined distance apart so that the two conductive plates are opposite each other and are separated by an open gap of a predetermined distance, the two conductive plates being insulated one from the other. Leads are electrically connected to the conductive plate of each disc through the fused glass frit. When pressure is applied to the member, the diaphragm member is displaced thereby changing the capacitance of the pressure transducer.
    • 一种电容式压力传感器,包括一对具有由绝缘体材料制成的平面的盘状构件,其中一个构件比另一个板薄数倍,并且柔性并构成隔膜,而另一个较厚的板构成固定板。 在每个构件的表面上形成薄导电膜以形成电容器的板。 玻璃料被施加在每个构件的边缘上,并且当构件保持相邻关系时,组件被点燃以将两个构件密封在一起,同时间隔开预定距离,使得两个导电板彼此相对,并且 通过预定距离的开放间隙分开,两个导电板彼此绝缘。 引线通过熔融玻璃料电连接到每个盘的导电板。 当对构件施加压力时,隔膜构件移位,从而改变压力传感器的电容。