Pressure measuring device

专利名称：Pressure measuring device发明人：MARTIN, RAINER, DIPL.-ING.

(FH),SCHNEIDER, GEORG, DR. ING.

申请号：EP89810589.5申请日：19890804公开号：EP0411230A1公开日：19910206

专利附图：

摘要：This has a housing (10) which possesses a first connection (1) for supplying afirst pressure (p1), an inner space (11) for receiving, fastening and sealing off a sensorelement (3..), a wall (12) enclosing the inner space and having a channel (41) extending

therein for the guidance of reference air or a second pressure (p2), and a cover (5). Thesensor element (3..) comprises a diaphragm (31), to the outer face of which the firstpressure (p1) is supplied, and a basic body (32), in which the inner face of the diaphragm(31) is subjected to pressure by way of an orifice (33). Furthermore, the cover (5) has atleast one duct (51) for electrical leads (52) of the sensor element, means for the gastightclosure of the inner space (11) relative to the environment of the pressure-measuringdevice, a channel continuation (42) guiding the channel (41) in the wall (12) as far as acover orifice, and an insert which is fitted in a gastight manner into the cover orifice andwhich either is solid (insert 61) or has a connecting channel (43) between the channelcontinuation (42) and an extension (34) guided from the inner plane of the cover (5) as faras the orifice (33) in the basic body (32) of the sensor element (insert 62) or is designed asa second connection (2) for supplying the second pressure (p2), with the channel

continuation (42) being sealed off (insert 63). This design serves for providing a pressure-measuring device which can be modified either as an absolute-pressure measuring deviceor as a reference-pressure measuring device or as a differential-pressure measuringdevice, a minimum number of different parts adapted to the particular uses beingnecessary, and in addition one of the pressure connections being capable of beingattached selectively to one of the two main surfaces of the pressure-measuring device. ……

申请人：ENDRESS + HAUSER GMBH & CO.

地址：HAUPTSTRASSE 1 POSTFACH 1261; D-7864 MAULBURG,Hauptstrasse 1Postfach 1261 D-79689 Maulburg DE

国籍：DE

代理机构：Morstadt, Volker, Dipl.-Ing. c/o Endress + Hauser Flowtec AG

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