PRESSURE SENSOR

To provide a pressure sensor that can reduce the cost while preventing a noise effect.SOLUTION: In a pressure sensor, a base comprises a metal annular part fastened to the diaphragm and a center part formed of an insulating material and arranged on the inner side of the annular part, and the pressur...

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Bibliographische Detailangaben
Hauptverfasser:	AOYAMA TSUNEHISA, MUKAI GENTO, TAKATSUKI OSAMU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TESTING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	To provide a pressure sensor that can reduce the cost while preventing a noise effect.SOLUTION: In a pressure sensor, a base comprises a metal annular part fastened to the diaphragm and a center part formed of an insulating material and arranged on the inner side of the annular part, and the pressure detection device is arranged on the center part. Since the pressure detection device is arranged on the center part formed of the insulating material, insulation properties are ensured from the outer periphery of the base. Due to this configuration, if, for example, noise such as high frequency noise is transmitted to the outer periphery of the base from an external piping, the noise can be effectively blocked.SELECTED DRAWING: Figure 2 【課題】コストを抑えつつも、ノイズの影響を抑制できる圧力センサを提供する。【解決手段】圧力センサにおいて、ベースは、前記ダイアフラムに固着される金属製の環状部と、前記環状部の内側に配置された絶縁性素材から形成される中央部と、を有し、前記圧力検出装置は、前記中央部に配置されている。圧力検出装置を、絶縁性素材から形成された中央部に配置しているので、ベースの外周部とは絶縁が確保される。このため、例えば外部の配管からベースの外周部に高周波等のノイズが伝達された場合でも、かかるノイズを有効に遮断できる。【選択図】図２