PRESSURE SENSOR

PROBLEM TO BE SOLVED: To propose an improvement in a shield body on a front side so that an optimal measurement characteristic can be maintained even with a thermal load asymmetrically acting on a sensor and even in a dynamic process of a strong level, and so that the measurement characteristic can...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROBERT STRMSEK, DIETMAR KROEGER, BAUMGARTNER MARTIN
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To propose an improvement in a shield body on a front side so that an optimal measurement characteristic can be maintained even with a thermal load asymmetrically acting on a sensor and even in a dynamic process of a strong level, and so that the measurement characteristic can be made appropriate.SOLUTION: The present invention relates to a pressure sensor (1) that comprises: a sensor housing (2) accommodating a measurement transducer (3); and a diaphragm (10) having a central pressure part (11) surrounded by an annular flexible part (12), and being arranged on a pressure side where to the pressure part (11), a shield body is attached which exerts an influence on a heat transfer. The shield body is formed as a distribution cap (20) that has a central area (24) bonded to the pressure part (11) by a heat transfer bonding. For example, a central recess part or an opening part (23) is formed and a protrusion part (16) of the pressure part (11) can be accommodated. 【課題】非対称的にセンサに作用する熱負荷であっても、強いレベルの動的プロセスにあっても好適な測定特性が維持することができるように、適正化することができるようにフロント側の遮蔽体の改良を提案する。【解決手段】測定変換器(3)を収容するセンサハウジング(2)と、環状の可撓部(12)に囲まれた中央の押圧部(11)を有する圧力側に配置されたダイヤフラム(10)とを具え、圧力側において、押圧部(11)には、ダイヤフラム(10)への伝熱に影響を及ぼす遮蔽体が取り付けられている構成の圧力センサ(1)に関し、遮蔽体は、該遮蔽体の中央領域(24)が押圧部(11)と伝熱接合された分配キャップ(20)として形成されている。たとえば、中央の凹部ないし開口部(23)が形成され、押圧部(11)の凸部(16)を収容することができる。【選択図】図3