WO2020120998A3 - Techniques for controlling the motion of sma actuators - Google Patents

Techniques for controlling the motion of sma actuators Download PDF

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Publication number
WO2020120998A3
WO2020120998A3 PCT/GB2019/053568 GB2019053568W WO2020120998A3 WO 2020120998 A3 WO2020120998 A3 WO 2020120998A3 GB 2019053568 W GB2019053568 W GB 2019053568W WO 2020120998 A3 WO2020120998 A3 WO 2020120998A3
Authority
WO
WIPO (PCT)
Prior art keywords
techniques
motion
controlling
sma actuators
actuator
Prior art date
Application number
PCT/GB2019/053568
Other languages
French (fr)
Other versions
WO2020120998A2 (en
Inventor
Matthew John Reynolds
Daniel John BURBRIDGE
Robert LANGHORNE
Samuel ARMSTRONG
Nicolas HEIJNE
James Howarth
Original Assignee
Cambridge Mechatronics Limited
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 Cambridge Mechatronics Limited filed Critical Cambridge Mechatronics Limited
Priority to GB2109540.1A priority Critical patent/GB2594015B/en
Priority to CN201980083077.0A priority patent/CN113195891A/en
Publication of WO2020120998A2 publication Critical patent/WO2020120998A2/en
Publication of WO2020120998A3 publication Critical patent/WO2020120998A3/en

Links

Classifications

    • 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
    • F03G7/065—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 using a shape memory element

Abstract

Broadly speaking, embodiments of the present techniques provide techniques for improving the operation of a shape memory alloy (SMA) actuator by using at least one damping element to reduce undesired movement of the actuator.
PCT/GB2019/053568 2018-12-14 2019-12-16 Techniques for controlling the motion of sma actuators WO2020120998A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2109540.1A GB2594015B (en) 2018-12-14 2019-12-16 Techniques for controlling the motion of SMA actuators
CN201980083077.0A CN113195891A (en) 2018-12-14 2019-12-16 Techniques for controlling motion of a shape memory alloy actuator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB1820457.8A GB201820457D0 (en) 2018-12-14 2018-12-14 Techniques for controlling the motion of SMA actuators
GB1820457.8 2018-12-14
GB1905771.0 2019-04-25
GBGB1905771.0A GB201905771D0 (en) 2018-12-14 2019-04-25 Technique for controlling the motion of sma actuators

Publications (2)

Publication Number Publication Date
WO2020120998A2 WO2020120998A2 (en) 2020-06-18
WO2020120998A3 true WO2020120998A3 (en) 2020-07-23

Family

ID=65147179

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2019/053568 WO2020120998A2 (en) 2018-12-14 2019-12-16 Techniques for controlling the motion of sma actuators

Country Status (3)

Country Link
CN (1) CN113195891A (en)
GB (3) GB201820457D0 (en)
WO (1) WO2020120998A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202019231D0 (en) * 2020-12-07 2021-01-20 Cambridge Mechatronics Ltd A method of controlling an actuator assembly
GB2605368A (en) * 2021-03-29 2022-10-05 Cambridge Mechatronics Ltd SMA Actuator Assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174360A (en) * 2008-01-23 2009-08-06 Konica Minolta Opto Inc Drive mechanism and drive device
US20100293940A1 (en) * 2008-01-23 2010-11-25 Konica Minolta Opto., Inc. Drive mechanism and drive device
US20150135703A1 (en) * 2012-05-25 2015-05-21 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US20150260170A1 (en) * 2014-03-11 2015-09-17 The Regents Of The University Of Michigan System with damper-controlled switch for shape memory alloy actuator motion control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5403916B2 (en) * 2008-01-23 2014-01-29 コニカミノルタ株式会社 Drive mechanism and drive device
EP3629081A3 (en) 2010-02-26 2020-07-29 Cambridge Mechatronics Limited Sma actuation apparatus
GB201221306D0 (en) 2012-11-27 2013-01-09 Cambridge Mechatronics Ltd Suspension system for a camera lens element
GB201713191D0 (en) 2017-08-17 2017-10-04 Cambridge Mechatronics Ltd SMA Actuator assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174360A (en) * 2008-01-23 2009-08-06 Konica Minolta Opto Inc Drive mechanism and drive device
US20100293940A1 (en) * 2008-01-23 2010-11-25 Konica Minolta Opto., Inc. Drive mechanism and drive device
US20150135703A1 (en) * 2012-05-25 2015-05-21 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US20150260170A1 (en) * 2014-03-11 2015-09-17 The Regents Of The University Of Michigan System with damper-controlled switch for shape memory alloy actuator motion control

Also Published As

Publication number Publication date
GB202109540D0 (en) 2021-08-18
CN113195891A (en) 2021-07-30
GB201905771D0 (en) 2019-06-05
GB2594015B (en) 2022-11-02
GB2594015A (en) 2021-10-13
GB201820457D0 (en) 2019-01-30
WO2020120998A2 (en) 2020-06-18

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