GB2491444B - Control of a shape memory alloy actuation arrangement - Google Patents

Control of a shape memory alloy actuation arrangement

Info

Publication number
GB2491444B
GB2491444B GB1207483.7A GB201207483A GB2491444B GB 2491444 B GB2491444 B GB 2491444B GB 201207483 A GB201207483 A GB 201207483A GB 2491444 B GB2491444 B GB 2491444B
Authority
GB
United Kingdom
Prior art keywords
control
shape memory
memory alloy
actuation arrangement
alloy actuation
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.)
Active
Application number
GB1207483.7A
Other languages
English (en)
Other versions
GB201207483D0 (en
GB2491444A (en
Inventor
Richard Topliss
Robert John Leedham
David Charles William Richards
Thomas Matthew Gregory
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.)
Cambridge Mechatronics Ltd
Original Assignee
Cambridge Mechatronics 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 GB0723613A external-priority patent/GB0723613D0/en
Priority claimed from GB0809017A external-priority patent/GB0809017D0/en
Application filed by Cambridge Mechatronics Ltd filed Critical Cambridge Mechatronics Ltd
Publication of GB201207483D0 publication Critical patent/GB201207483D0/en
Publication of GB2491444A publication Critical patent/GB2491444A/en
Application granted granted Critical
Publication of GB2491444B publication Critical patent/GB2491444B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • F03G7/061—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element
    • F03G7/0614—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element using shape memory elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • F03G7/066—Actuator control or monitoring
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lens Barrels (AREA)
  • Endoscopes (AREA)
  • Adjustment Of Camera Lenses (AREA)
GB1207483.7A 2007-12-03 2008-12-03 Control of a shape memory alloy actuation arrangement Active GB2491444B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0723613A GB0723613D0 (en) 2007-12-03 2007-12-03 SMA actuator control
GB0809017A GB0809017D0 (en) 2008-05-19 2008-05-19 SMA actuator control

Publications (3)

Publication Number Publication Date
GB201207483D0 GB201207483D0 (en) 2012-06-13
GB2491444A GB2491444A (en) 2012-12-05
GB2491444B true GB2491444B (en) 2013-07-10

Family

ID=40718263

Family Applications (3)

Application Number Title Priority Date Filing Date
GB1207483.7A Active GB2491444B (en) 2007-12-03 2008-12-03 Control of a shape memory alloy actuation arrangement
GB1008651.0A Active GB2469759B (en) 2007-12-03 2008-12-03 Control of a shape memory alloy actuation arrangement
GB1207482.9A Active GB2491684B (en) 2007-12-03 2008-12-03 Determination of ambient temperature of a shape memory alloy actuation arrangement

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB1008651.0A Active GB2469759B (en) 2007-12-03 2008-12-03 Control of a shape memory alloy actuation arrangement
GB1207482.9A Active GB2491684B (en) 2007-12-03 2008-12-03 Determination of ambient temperature of a shape memory alloy actuation arrangement

Country Status (4)

Country Link
US (1) US8756933B2 (enExample)
JP (1) JP5221672B2 (enExample)
GB (3) GB2491444B (enExample)
WO (1) WO2009071898A2 (enExample)

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Also Published As

Publication number Publication date
US20100275592A1 (en) 2010-11-04
GB2491684A (en) 2012-12-12
WO2009071898A2 (en) 2009-06-11
WO2009071898A3 (en) 2009-12-10
GB201207482D0 (en) 2012-06-13
GB2469759B (en) 2012-08-22
GB201207483D0 (en) 2012-06-13
GB201008651D0 (en) 2010-07-07
GB2491444A (en) 2012-12-05
GB2469759A (en) 2010-10-27
JP5221672B2 (ja) 2013-06-26
US8756933B2 (en) 2014-06-24
JP2011506813A (ja) 2011-03-03
GB2491684B (en) 2013-04-24

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