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FR3091928B1 - Flexible electrical circuit framing a piezoelectric element of an accelerometer sensor - Google Patents

Flexible electrical circuit framing a piezoelectric element of an accelerometer sensor Download PDF

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Publication number
FR3091928B1
FR3091928B1 FR1900419A FR1900419A FR3091928B1 FR 3091928 B1 FR3091928 B1 FR 3091928B1 FR 1900419 A FR1900419 A FR 1900419A FR 1900419 A FR1900419 A FR 1900419A FR 3091928 B1 FR3091928 B1 FR 3091928B1
Authority
FR
France
Prior art keywords
washer
piezoelectric element
accelerometer sensor
electrical circuit
flexible electrical
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
FR1900419A
Other languages
French (fr)
Other versions
FR3091928A1 (en
Inventor
Gil Pesquera
Celie Maris
Jérôme Godia
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.)
Vitesco Technologies GmbH
Original Assignee
Continental Automotive France SAS
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 Continental Automotive France SAS filed Critical Continental Automotive France SAS
Priority to FR1900419A priority Critical patent/FR3091928B1/en
Publication of FR3091928A1 publication Critical patent/FR3091928A1/en
Application granted granted Critical
Publication of FR3091928B1 publication Critical patent/FR3091928B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/09—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Air Bags (AREA)

Abstract

La présente invention concerne un circuit de contact électrique destiné à entourer un élément piézoélectrique (4) dans un capteur accéléromètre (1). Le circuit comprend deux rondelles (5a, 5b) flexibles superposées l’une à l’autre, chaque rondelle (5a, 5b) présentant une première face conductrice tournée vers l’intérieur du circuit de contact et une deuxième face isolante tournée vers l’extérieur du circuit, un élément résistif (7) solidarisant les deux rondelles (5a, 5b), chaque rondelle (5a, 5b) portant un bras de liaison (13) faisant saillie de la rondelle (5a, 5b) associée, le bras de liaison (13) présentant des zones conductrice et isolante en prolongement respectif des première et deuxième faces de la rondelle (5a, 5b). Figure pour l’abrégé : Fig. 2The present invention relates to an electrical contact circuit intended to surround a piezoelectric element (4) in an accelerometer sensor (1). The circuit comprises two flexible washers (5a, 5b) superimposed on one another, each washer (5a, 5b) having a first conductive face turned towards the inside of the contact circuit and a second insulating face turned towards the outside the circuit, a resistive element (7) securing the two washers (5a, 5b), each washer (5a, 5b) carrying a connecting arm (13) projecting from the associated washer (5a, 5b), the connection (13) having conductive and insulating zones in respective extension of the first and second faces of the washer (5a, 5b). Figure for abstract: Fig. 2

FR1900419A 2019-01-17 2019-01-17 Flexible electrical circuit framing a piezoelectric element of an accelerometer sensor Active FR3091928B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1900419A FR3091928B1 (en) 2019-01-17 2019-01-17 Flexible electrical circuit framing a piezoelectric element of an accelerometer sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1900419A FR3091928B1 (en) 2019-01-17 2019-01-17 Flexible electrical circuit framing a piezoelectric element of an accelerometer sensor
FR1900419 2019-01-17

Publications (2)

Publication Number Publication Date
FR3091928A1 FR3091928A1 (en) 2020-07-24
FR3091928B1 true FR3091928B1 (en) 2022-04-15

Family

ID=66867393

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1900419A Active FR3091928B1 (en) 2019-01-17 2019-01-17 Flexible electrical circuit framing a piezoelectric element of an accelerometer sensor

Country Status (1)

Country Link
FR (1) FR3091928B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3888314B2 (en) * 2003-02-20 2007-02-28 株式会社デンソー Knock sensor
JP4162012B2 (en) * 2006-03-30 2008-10-08 三菱電機株式会社 Knock sensor
JP6181663B2 (en) * 2013-06-25 2017-08-16 日本特殊陶業株式会社 Knocking sensor

Also Published As

Publication number Publication date
FR3091928A1 (en) 2020-07-24

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