Fujikoki Corporation

Hitoshi Nagase

Keiji Sasaki

Isao Okura

A pressure sensor comprising a holderhaving mounted thereto a semiconductor pressure sensor elementthat outputs a voltage signal corresponding to the pressure it receives, a connector casefor fixing a lead memberconnected to the semiconductor pressure sensor element, a diaphragmthat defines together with the holdera pressure sensing chamberfilled with insulating oil, and a lid membermade of metal to which a pressure introduction pipeis mounted, wherein the holderis made of metal and has a through-holethat communicates the pressure sensing chamberwith the exterior and a seal memberthat seals the through-hole, the connector casehas an insert holecommunicated with the through-holeand through which the seal memberis inserted, and the diaphragmis sandwiched between the holdermade of metal and the lid membermade of metal and bonded thereto.

Pressure sensor

A pressure sensor comprising a housing having a pressure introduction hole a pressure sensing element composed of a semiconductor element having piezoresistance effect, a holder having fixed thereto the pressure sensing element a guide member a seal member and a connector case the pressure sensor element and holder joined in airtight manner to create a reference pressure chamber On the holder of the pressure sensor body is mounted a circuit board having electrode pads, the electrode pads connected to connectors fixed to the connector case via conductive spring bodies The guide member supports holder and in the opening of the guide member is placed the seal member

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Tokyo, Japan

Hitoshi Nagase