BRPI0416808A - termo-compensação integral para atuador eletro-mecánico - Google Patents

termo-compensação integral para atuador eletro-mecánico

Info

Publication number
BRPI0416808A
BRPI0416808A BRPI0416808-9A BRPI0416808A BRPI0416808A BR PI0416808 A BRPI0416808 A BR PI0416808A BR PI0416808 A BRPI0416808 A BR PI0416808A BR PI0416808 A BRPI0416808 A BR PI0416808A
Authority
BR
Brazil
Prior art keywords
cma
displacement
amplification mechanism
electro
mechanical actuator
Prior art date
Application number
BRPI0416808-9A
Other languages
English (en)
Inventor
Jeffery B Moler
Aaron Dickey
Keith Thornhill
Original Assignee
Viking Technologies Lc
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 Viking Technologies Lc filed Critical Viking Technologies Lc
Publication of BRPI0416808A publication Critical patent/BRPI0416808A/pt

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
    • H02N2/04—Constructional details
    • H02N2/043—Mechanical transmission means, e.g. for stroke amplification
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Control Of Position Or Direction (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

"TERMO-COMPENSAçãO INTEGRAL PARA ATUADOR ELETRO-MECáNICO". Trata-se de um método para compensar diferenças na taxa de termo-expansão em um ou mais elementos de um atuador eletro-mecânico. O atuador eletro-mecânico pode incluir um ou mais elementos, tal como um atuador piezelétrico com multicamadas de cerâmica (CMA) e um mecanismo para amplificar o deslocamento do CMA. Uma diferença na taxa de termo-expansão ou coeficiente de termo-expansão, CTE, entre os materiais no CMA e o mecanismo de amplificação pode levar os dois componentes a variar o tamanho em taxas diferentes conforme a temperatura ambiente varia. Uma vez que o mecanismo de amplificação proporciona amplificação substancial do deslocamento do CMA, a variação relativa, no tamanho dos componentes, devido ao fato de que a temperatura pode ser traduzida pelo mecanismo de amplificação como deslocamento do CMA. Isto pode resultar no deslocamento substancial do mecanismo de amplificação. Repor um elemento mecânico no mecanismo de amplificação com um elemento que possui um valor diferente para o CTE diminui substancialmente a diferença no CTE dos materiais, deste modo reduzindo o deslocamento induzido termicamente do mecanismo de amplificação. Adicionalmente, o material usado e o meio para interconectar o elemento de reposição no dispositivo de amplificação para termo-compensação pode manter alta rigidez da estrutura de sustentação de CMA, uma vez que a estrutura de sustentação transmite o deslocamento e a força do CMA para o mecanismo de amplificação, assim como aplicar uma pré-carga compressiva ao CMA. Adicionalmente, um alto nivel de força de pré-carga compressiva pode ser usado como uma parte adicional do processo de desenho total para ajustar o grau de termo-compensação requerido .
BRPI0416808-9A 2003-11-20 2004-11-18 termo-compensação integral para atuador eletro-mecánico BRPI0416808A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52380803P 2003-11-20 2003-11-20
PCT/US2004/038828 WO2005053045A2 (en) 2003-11-20 2004-11-18 Integral thermal compensation for an electro-mechanical actuator

Publications (1)

Publication Number Publication Date
BRPI0416808A true BRPI0416808A (pt) 2007-01-09

Family

ID=34632827

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0416808-9A BRPI0416808A (pt) 2003-11-20 2004-11-18 termo-compensação integral para atuador eletro-mecánico

Country Status (9)

Country Link
US (2) US7126259B2 (pt)
EP (1) EP1685605B1 (pt)
JP (1) JP4740870B2 (pt)
KR (1) KR100849155B1 (pt)
CN (1) CN100583481C (pt)
AT (1) ATE538504T1 (pt)
BR (1) BRPI0416808A (pt)
MX (1) MXPA06005699A (pt)
WO (1) WO2005053045A2 (pt)

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Also Published As

Publication number Publication date
WO2005053045A2 (en) 2005-06-09
JP2007512713A (ja) 2007-05-17
JP4740870B2 (ja) 2011-08-03
CN1902767A (zh) 2007-01-24
EP1685605A2 (en) 2006-08-02
US20060017349A1 (en) 2006-01-26
US7126259B2 (en) 2006-10-24
EP1685605B1 (en) 2011-12-21
MXPA06005699A (es) 2007-05-23
ATE538504T1 (de) 2012-01-15
WO2005053045A3 (en) 2005-08-04
CN100583481C (zh) 2010-01-20
KR20060101775A (ko) 2006-09-26
US20050146248A1 (en) 2005-07-07
KR100849155B1 (ko) 2008-07-30

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements