GB1156949A - Pressure Measuring Apparatus - Google Patents

Pressure Measuring Apparatus

Info

Publication number
GB1156949A
GB1156949A GB4896566A GB4896566A GB1156949A GB 1156949 A GB1156949 A GB 1156949A GB 4896566 A GB4896566 A GB 4896566A GB 4896566 A GB4896566 A GB 4896566A GB 1156949 A GB1156949 A GB 1156949A
Authority
GB
United Kingdom
Prior art keywords
transducers
capsule
indicated
wall
frequency
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.)
Expired
Application number
GB4896566A
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.)
Kollsman Instrument Corp
Original Assignee
Kollsman Instrument 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 Kollsman Instrument Corp filed Critical Kollsman Instrument Corp
Publication of GB1156949A publication Critical patent/GB1156949A/en
Expired 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
    • G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a diaphragm

Landscapes

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

Abstract

1,156,949. Measuring pressure electrically. KOLLSMAN INSTRUMENT CORP. Nov. 1, 1966 [March 17, 1966], No. 48965/66. Heading G1N. [Also in Division H4] The pressure difference across the wall of a bellows is indicated by vibrating the wall and measuring the resonant frequency of vibration. An altimeter comprises an aneroid capsule 10 resiliently supported at its rim and vibrated at its natural resonance frequency by means of driving and pick-up transducers connected respectively to the output and input of a valve amplifier. As shown, the transducers comprise loudspeaker units 56, the cones 54 of which are coupled to the capsule by members 50, 51. The resonant frequency is indicated on a frequency meter in the amplifier output circuit. In alternative embodiments the transducers may comprise ferromagnetic discs (15,16) mounted on the capsule walls and co-operating with adjacent electromagnets (19, 20, Fig. 1), or may be Piezo-electric.
GB4896566A 1966-03-17 1966-11-01 Pressure Measuring Apparatus Expired GB1156949A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53511866A 1966-03-17 1966-03-17

Publications (1)

Publication Number Publication Date
GB1156949A true GB1156949A (en) 1969-07-02

Family

ID=24132919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4896566A Expired GB1156949A (en) 1966-03-17 1966-11-01 Pressure Measuring Apparatus

Country Status (3)

Country Link
DE (1) DE1648548B1 (en)
FR (1) FR1602267A (en)
GB (1) GB1156949A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831178C2 (en) * 1978-07-15 1983-06-09 Walter 2000 Hamburg Nicolai Device for measuring the static pressure of gases

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349379A (en) * 1962-12-05 1964-01-17 Elliott Brothers London Ltd Fluid pressure transducer device
FR1368982A (en) * 1963-06-28 1964-08-07 Pressure measurement method and device for its implementation

Also Published As

Publication number Publication date
DE1648548B1 (en) 1972-03-09
FR1602267A (en) 1970-11-02

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Legal Events

Date Code Title Description
PS Patent sealed
PE Patent expired