摘要:
PURPOSE: A pressure sensor package structure is provided to selectively apply a silicon semiconductor core chip diaphragm and a metal strain gage diaphragm with one pressure sensor package only. CONSTITUTION: A pressure sensor package structure includes a base(120), a diaphragm, a signal processing unit, an outer housing package(160), and a screw part. The base is connected to a measured object. The diaphragm is supported by the base and senses an applied pressure. The signal processing unit changes the amount of deformation of the diaphragm to an electric signal. The outer housing package protects the diaphragm and the signal processing unit from external shock. The screw part is connected with a plastic package for setting a silicon chip diaphragm on the base. The screw part is coupled with a metal strain gage diaphragm.
摘要:
PURPOSE: A semiconductor pressure sensor is provided to improve sensing precision by forming sensing electrodes on a ceramic substrate with a thick film printing method. CONSTITUTION: A semiconductor pressure sensor includes four sensing resistances(Ra,Rb,Rc,Rd) which are arranged in an X shape on a diaphragm(10) and bridge-wired so as to detect the pressure applied to the diaphragm. The sensing resistances include four terminals, two of them are input terminals and the others are output terminals.
摘要:
압력센서가 제공되며, 본 발명의 일 실시예에 따른 압력센서는 하우징, 하우징의 중앙에 위치하며 압력에 기초하여 변형되는 원통형 실린더 구조를 포함하는 압력부, 하우징과 압력부 위에 위치하는 제1 지지부, 제1 지지부 위에 위치하는 하부전극, 하부전극과 마주보며 하부전극 위에 이격되어 위치하는 상부전극, 하우징에 연결되며 상부전극을 지지하는 제2 지지부, 그리고 제2 지지부 위에 위치하며 압력부의 스트레인을 감지하는 스트레인 게이지를 포함하는 압력센서를 포함한다.
摘要:
PURPOSE: A pressure sensor having semi-permeable membrane and an installation member thereof are provided to improve durability and increase the accuracy of the pressure sensing regardless of outside temperature condition. CONSTITUTION: A pressure sensor having semi-permeable membrane(100) comprises a housing(10), a connection unit(20), and a connector(30). A hollow(11) is formed inside the housing. The connection unit comprises a pressure inlet(25) for the inflow of fluid. The connector is installed at the other end of the housing. One end of the pressure inlet of the connection unit faces to the outside and the other end faces to the hollow of the housing. A semi-permeable film(28) is formed at one end of the pressure inlet.
摘要:
PURPOSE: A pressure distribution measurement test piece is provided to measure the parallelism between a backlight and a bonding head. CONSTITUTION: A pressure distribution measurement test piece comprises a backup plate, a settling part, test piece bodys(31,31a,32a,32b,33a,33b) and deformable parts(34a,34b,35a). The settling part is settled in the backup plate. The test piece body moves the backup plate and is pressurized with the bonding head. The deformable part interlinks the settling part and test piece body. The test piece body moves to eh backup plate by the pressurizing of the bonding head. The deformation part is transformed according to the test piece body.
摘要:
The present invention relates to a ceramic diaphragm type pressure sensor and, more specifically, to a ceramic diaphragm type pressure sensor capable of preventing the leakage of a medium, which is a pressure measuring target, because a ceramic diaphragm is not broken, and accomplishing excellent mass production. Also, the present invention can reduce the volume of the pressure sensor by simplifying a PCB and a flexible cable for connecting the sensor and a signal processing chip, and can make the sensor at low prices. The ceramic diaphragm type pressure sensor according to the present invention comprises: the rectangular-plated ceramic diaphragm having a surface on which strain gauges and a pattern formed of an electro-conductive substance are formed; a base plate facing the surface of the ceramic diaphragm on which the pattern is formed; and an adhesive layer formed along the outer circumference of the ceramic diaphragm and the base plate to attach the ceramic diaphragm and the base plate and to form a space for the strain gauges.
摘要:
PURPOSE: A pressure sensor is provided to simultaneously form a strain gauge on an identical substrate by a semi-conductive process and to be used by sawing one by one, thereby reducing manufacturing costs. CONSTITUTION: A pressure sensor comprises a base(31), a diaphragm(33), a guide(35), a boss(37), and a strain gauge(39). The base is formed into a ring shape. The diaphragm is welded in one side of the base corresponding to the other side where pressure is applied so that a circular edge portion of the diaphragm is overlapped. The guide is formed in the diaphragm to have internal and external diameters of the base identical to that of the base. The boss is welded so that the upper surface of the boss is positioned on a central portion of the diaphragm where the upper surface of the guide is positioned. Both sides of the lower surface of a gauge substrate are welded on the upper surfaces of the strain gauge and the guide. The strain gauge includes a plurality of resistant bodies. [Reference numerals] (AA) Pressure