CAPACITANCE-TYPE PRESSURE DIFFERENTIAL SENSOR Russian patent published in 2004 - IPC

Abstract RU 2237874 C2

FIELD: measurement technology; measurement of pressure in monitoring and control systems.

SUBSTANCE: proposed capacitance-type pressure differential sensor has housing with pipe unions for delivery of one pressure inside housing and above-membrane space and membrane arranged inside housing and secured by means of cover; cover is provided with pipe union for delivery of other pressure. Sensor includes capacitance transducer with one movable and two immovable electrodes. Mechanical linkage between membrane and movable electrode is effected of capacitance transducer is effected by means of rod and sectional bellows located coaxially relative to rod and membrane on side of action of pressure being measured isolating the cavity of capacitance transducer from action of this pressure. Lower base of sectional bellows is connected with housing through bush on one side and with upper base of bellows on other side; bush has ports and upper base of bellows is welded to this bush. Upper part of bellows is connected with flat disk carrying the rod which is connected with movable electrode. Projections of disk passed through ports in bush are connected with flat center of membrane by means of perforated adapter bush.

EFFECT: linearity of characteristic; enhanced vibration and impact resistance of sensor.

1 dwg

Similar patents RU2237874C2

Title Year Author Number
CAPACITIVE TRANSDUCER OF PRESSURE DIFFERENCE 1991
  • Ogulo V.I.
  • Shumkin S.V.
RU2010198C1
CAPACITIVE PRESSURE TRANSDUCER 1991
  • Mokrov E.A.
  • Belozubov E.M.
RU2010201C1
CAPACITY INDICATOR OF EXCESSIVE PRESSURE 2001
  • Gadjatskij S.V.
  • Emtsev E.P.
  • Zavorotnyj A.V.
  • Mukhomod'Jarov R.Kh.
  • Savel'Ev G.A.
RU2258913C2
PRESSURE DIFFERENCE PICKUP 0
  • Zinovev Viktor Aleksandrovich
  • Akimov Vyacheslav Borisovich
  • Shoshin Aleksandr Aleksandrovich
SU1767375A1
PRESSURE DIFFERENCE TRANSDUCER 2013
  • Utkin Dmitrij Ivanovich
  • Danilenko Sergej Aleksandrovich
RU2527135C1
CAPACITIVE TYPE PRESSURE AND DIFFERENTIAL PRESSURE PICKUP 1997
  • Kulikov N.D.
RU2126533C1
CAPACITIVE PRESSURE PICKUP AND PROCESS OF ITS ASSEMBLY 2001
  • Gadjatskij S.V.
  • Emtsev E.P.
  • Zavorotnyj A.V.
  • Mukhomod'Jarov R.Kh.
  • Savel'Ev G.A.
  • Rudenko A.V.
RU2229107C2
PRESSURE TRANSDUCER 2004
  • Gadjatskij Sergej Vladimirovich
  • Emtsev Evgenij Pavlovich
  • Zavorotnyj Anatolij Vladimirovich
  • Mukhomod'Jarov Ravil' Khamitovich
  • Savel'Ev Gennadij Anatol'Evich
RU2285249C2
FLEXIBLE BEARING 1991
  • Obraztsov Dmitrij Ivanovich
RU2025608C1
PRESSURE TRANSDUCER 0
  • Zinovev Viktor Aleksandrovich
  • Shoshin Aleksandr Aleksandrovich
  • Akimov Vyacheslav Borisovich
SU1753313A1

RU 2 237 874 C2

Authors

Gadjatskij S.V.

Emtsev E.P.

Zavorotnyj A.V.

Mukhomod'Jarov R.Kh.

Savel'Ev G.A.

Dates

2004-10-10Published

2001-10-18Filed