GB1276294A - Vibratory transducer - Google Patents

Vibratory transducer

Info

Publication number
GB1276294A
GB1276294A GB2483968A GB2483968A GB1276294A GB 1276294 A GB1276294 A GB 1276294A GB 2483968 A GB2483968 A GB 2483968A GB 2483968 A GB2483968 A GB 2483968A GB 1276294 A GB1276294 A GB 1276294A
Authority
GB
United Kingdom
Prior art keywords
coil
contact
pressure
oscillator
increase
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
GB2483968A
Inventor
Peter Edwin Burry
Eric Francis Price
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB2483968A priority Critical patent/GB1276294A/en
Publication of GB1276294A publication Critical patent/GB1276294A/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
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/004—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by the use of counterbalancing forces
    • G01L11/008—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by the use of counterbalancing forces electrostatic or electromagnetic counterbalancing forces
    • 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)
  • Electromagnetism (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

1276294 Measuring fluid-pressure electrically DEFENCE SECRETARY OF STATE FOR 25 Aug 1969 [24 May 1968] 24839/68 Heading G1N A transducer for measuring fluid-pressure comprises a diaphragm 13, Fig. 1, exposed on its upper face to the test pressure and attached on its lower face to a moving coil 20 in the gap of a permanent magnet 22, 22a and also to a moving contact 24 co-operating with a spring-biased fixed contact 25. The coil 20 is energized via contacts 24, 25 causing the coil to raise contact 24 until the arm carrying contact 25 meets a fixed stop 26, whereupon the circuit is broken and contact 24 is again forced down to a position partly determined by the test pressure. Thus the mark/space ratio of the current through contacts 24, 25 is indicative of the pressure, which is measured by the average current through coil 20 or by controlling a separate oscillator 32. In another embodiment, Fig.3, the coil 20 is energized from the oscillator 32. An increase in test pressure causes the mark/space ratio of the output from the oscillator 32 to increase and the average current through coil 20 to increase to a value maintaining the mean position of the moving system substantially constant. In an alternative arrangement the moving system including coil 20 is replaced by a variable reactance forming part of a non-contact-making switching means replacing contacts 24, 25.
GB2483968A 1968-05-24 1968-05-24 Vibratory transducer Expired GB1276294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2483968A GB1276294A (en) 1968-05-24 1968-05-24 Vibratory transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2483968A GB1276294A (en) 1968-05-24 1968-05-24 Vibratory transducer

Publications (1)

Publication Number Publication Date
GB1276294A true GB1276294A (en) 1972-06-01

Family

ID=10218060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2483968A Expired GB1276294A (en) 1968-05-24 1968-05-24 Vibratory transducer

Country Status (1)

Country Link
GB (1) GB1276294A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391460A1 (en) * 1977-05-16 1978-12-15 Sperry Rand Corp PRESSURE TRANSDUCER MANOMETER
GB2150294A (en) * 1983-11-16 1985-06-26 Schlumberger Electronics Pressure monitoring

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391460A1 (en) * 1977-05-16 1978-12-15 Sperry Rand Corp PRESSURE TRANSDUCER MANOMETER
GB2150294A (en) * 1983-11-16 1985-06-26 Schlumberger Electronics Pressure monitoring
US4663965A (en) * 1983-11-16 1987-05-12 Eric Metcalf Pressure monitoring

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed