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GB2235773B - Sensors - Google Patents

Sensors

Info

Publication number
GB2235773B
GB2235773B GB9017082A GB9017082A GB2235773B GB 2235773 B GB2235773 B GB 2235773B GB 9017082 A GB9017082 A GB 9017082A GB 9017082 A GB9017082 A GB 9017082A GB 2235773 B GB2235773 B GB 2235773B
Authority
GB
United Kingdom
Prior art keywords
sensors
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 - Fee Related
Application number
GB9017082A
Other versions
GB2235773A (en
GB9017082D0 (en
Inventor
Philip Parsons
Jolyon Peter Willson
Eric Metcalf
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.)
Gemalto Terminals Ltd
Original Assignee
Schlumberger Industries Ltd
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
Priority claimed from GB898919573A external-priority patent/GB8919573D0/en
Application filed by Schlumberger Industries Ltd filed Critical Schlumberger Industries Ltd
Priority to GB9017082A priority Critical patent/GB2235773B/en
Publication of GB9017082D0 publication Critical patent/GB9017082D0/en
Publication of GB2235773A publication Critical patent/GB2235773A/en
Application granted granted Critical
Publication of GB2235773B publication Critical patent/GB2235773B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01L9/0019—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a semiconductive element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • 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
    • G01L9/0019—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a semiconductive element
    • G01L9/002—Optical excitation or measuring
    • 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
    • G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element
    • 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
    • G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element
    • G01L9/0023—Optical excitation or measuring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
GB9017082A 1989-08-30 1990-08-03 Sensors Expired - Fee Related GB2235773B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9017082A GB2235773B (en) 1989-08-30 1990-08-03 Sensors

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB898919573A GB8919573D0 (en) 1989-08-30 1989-08-30 Sensors
GB909010660A GB9010660D0 (en) 1989-08-30 1990-05-11 Sensors
GB9017082A GB2235773B (en) 1989-08-30 1990-08-03 Sensors

Publications (3)

Publication Number Publication Date
GB9017082D0 GB9017082D0 (en) 1990-09-19
GB2235773A GB2235773A (en) 1991-03-13
GB2235773B true GB2235773B (en) 1993-12-22

Family

ID=27264656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9017082A Expired - Fee Related GB2235773B (en) 1989-08-30 1990-08-03 Sensors

Country Status (1)

Country Link
GB (1) GB2235773B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989190A (en) * 1994-01-27 1999-11-23 Mizur Technology, Ltd. Passive sensor system using ultrasonic energy
IL108470A (en) * 1994-01-28 1998-12-06 Mizur Technology Ltd Passive sensor system using ultrasonic energy
US6770032B2 (en) 2001-12-03 2004-08-03 Microsense Cardiovascular Systems 1996 Passive ultrasonic sensors, methods and systems for their use
GB0206510D0 (en) 2002-03-20 2002-05-01 Qinetiq Ltd Micro-Electromechanical systems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000618A1 (en) * 1985-07-16 1987-01-29 The Foxboro Company Method and apparatus for sensing a measurand
GB2185106A (en) * 1985-12-13 1987-07-08 Gen Electric Co Plc An optically-driven vibrating sensor
GB2208931A (en) * 1987-08-19 1989-04-19 Stc Plc An optically driven mechanical oscillator
GB2218809A (en) * 1988-05-20 1989-11-22 Asea Brown Boveri Temperature measuring using quartz oscillators
GB2223311A (en) * 1988-09-29 1990-04-04 Schlumberger Ind Ltd Micromachined solid state vibrating element sensors
GB2229816A (en) * 1989-03-31 1990-10-03 Stc Plc Resonating element differential pressure sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000618A1 (en) * 1985-07-16 1987-01-29 The Foxboro Company Method and apparatus for sensing a measurand
GB2185106A (en) * 1985-12-13 1987-07-08 Gen Electric Co Plc An optically-driven vibrating sensor
GB2208931A (en) * 1987-08-19 1989-04-19 Stc Plc An optically driven mechanical oscillator
GB2218809A (en) * 1988-05-20 1989-11-22 Asea Brown Boveri Temperature measuring using quartz oscillators
GB2223311A (en) * 1988-09-29 1990-04-04 Schlumberger Ind Ltd Micromachined solid state vibrating element sensors
GB2229816A (en) * 1989-03-31 1990-10-03 Stc Plc Resonating element differential pressure sensor

Also Published As

Publication number Publication date
GB2235773A (en) 1991-03-13
GB9017082D0 (en) 1990-09-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030803