JPS5766327A - Pressure sensor - Google Patents

Pressure sensor

Info

Publication number
JPS5766327A
JPS5766327A JP14240280A JP14240280A JPS5766327A JP S5766327 A JPS5766327 A JP S5766327A JP 14240280 A JP14240280 A JP 14240280A JP 14240280 A JP14240280 A JP 14240280A JP S5766327 A JPS5766327 A JP S5766327A
Authority
JP
Japan
Prior art keywords
flat tube
measured
pressure
vibration
whose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14240280A
Other languages
Japanese (ja)
Inventor
Tadashi Sugiura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP14240280A priority Critical patent/JPS5766327A/en
Publication of JPS5766327A publication Critical patent/JPS5766327A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE:To obtain the compact sensor which can be used for the measurement of midium and high pressures by applying a pressure to be measured in a flat tube whose one end or both ends are fixed, generating vibration whose direction is perpendicular to the major axis of the flat tube, and sensing the vibration corresponding to the pressure to be measured. CONSTITUTION:The prssure to be measured P is applied into a flat tube 4 whose one end or both ends are fixed. The vibration is generated by excitation in the direction perpendicular to the major axis of said flat tube. The vibration of the flat tube 4 caused by the excitation is sensed, and an electric signal corresponding to the pressure to be measured P is obtained. For example, the pressure to be measured P is applied from an opening 4a of the flat tube 4 made of magnetic material whose cross section is as shown in the Figure and a one end is fixed, and the free end of the flat tube 4 is excited by an exciting coil 2 at a specified frequency. The flat tube 4 is expanded by the pressure to be measured P, and its flexural rigidity is increased. The vibration of the flat tube 4 is changed accordingly and sensed by a sensing coil 3. Thus the electric signal having the frequency corresponding to the pressure to be measured P is obtained.
JP14240280A 1980-10-14 1980-10-14 Pressure sensor Pending JPS5766327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14240280A JPS5766327A (en) 1980-10-14 1980-10-14 Pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14240280A JPS5766327A (en) 1980-10-14 1980-10-14 Pressure sensor

Publications (1)

Publication Number Publication Date
JPS5766327A true JPS5766327A (en) 1982-04-22

Family

ID=15314505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14240280A Pending JPS5766327A (en) 1980-10-14 1980-10-14 Pressure sensor

Country Status (1)

Country Link
JP (1) JPS5766327A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004011894A1 (en) * 2002-07-25 2004-02-05 Carpenter Brent L Precise pressure measurement by vibrating an oval conduit along different cross-sectional axes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004011894A1 (en) * 2002-07-25 2004-02-05 Carpenter Brent L Precise pressure measurement by vibrating an oval conduit along different cross-sectional axes
US7424376B2 (en) 2002-07-25 2008-09-09 Carpenter Brent L Precise pressure measurement by vibrating an oval conduit along different cross-sectional axes

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