GB1407793A - Mounting piezoelectric bimorphs - Google Patents

Mounting piezoelectric bimorphs

Info

Publication number
GB1407793A
GB1407793A GB4790271A GB4790271A GB1407793A GB 1407793 A GB1407793 A GB 1407793A GB 4790271 A GB4790271 A GB 4790271A GB 4790271 A GB4790271 A GB 4790271A GB 1407793 A GB1407793 A GB 1407793A
Authority
GB
United Kingdom
Prior art keywords
bimorph
wire
soldered
circuit board
supports
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
Application number
GB4790271A
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.)
Philips Components Ltd
Original Assignee
Mullard 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
Application filed by Mullard Ltd filed Critical Mullard Ltd
Priority to GB4790271A priority Critical patent/GB1407793A/en
Publication of GB1407793A publication Critical patent/GB1407793A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/09—Elastic or damping supports

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

1407793 Mounting piezo-electric elements MULLARD Ltd 13 Oct 1972 [14 Oct 1971] 47902/71 Heading H1E A piezo-electric bimorph is supported by a spring support on one side and a rigid support on the other, the supports contacting the bimorph on or along the same centre line, at least one of them making two points of contact. The supports may both consist of wires (Fig. 1, not shown), e.g. a resilient U-shaped wire may contact the underside of the bimorph at a single central point and a stiff wire along the whole length of a centre line on the upper side. Both wires may provide electrical leads and may be soldered to a printed circuit board. As shown in Fig. 2, the bimorph 5 is mounted between an M-shaped resilient wire 1A making a single central contact, and a pair of printed tracks 6 on a circuit board 2. The wire 1A is soldered to the board. In a modification of this. construe,- tion the M-shaped wire is replaced by the spring 11, Fig. 3d, having tabs 8 which provide knifeedge supports for the bimorph. The spring also carries pairs of tabs 9, 10 which are soldered to the printed circuit board.
GB4790271A 1971-10-14 1971-10-14 Mounting piezoelectric bimorphs Expired GB1407793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4790271A GB1407793A (en) 1971-10-14 1971-10-14 Mounting piezoelectric bimorphs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4790271A GB1407793A (en) 1971-10-14 1971-10-14 Mounting piezoelectric bimorphs

Publications (1)

Publication Number Publication Date
GB1407793A true GB1407793A (en) 1975-09-24

Family

ID=10446659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4790271A Expired GB1407793A (en) 1971-10-14 1971-10-14 Mounting piezoelectric bimorphs

Country Status (1)

Country Link
GB (1) GB1407793A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174537A (en) * 1985-04-30 1986-11-05 Stc Plc Crystal oscillator
FR2583584A1 (en) * 1985-06-14 1986-12-19 Ecole Nale Sup Meca Microtechn DEVICE FOR SUPPORTING A PIEZOELECTRIC RESONATOR WITHIN A HOUSING
DE4431511B4 (en) * 1993-09-23 2006-02-09 Holroyd Instruments Ltd., Bonsall, Matlock Acoustic vibration transducer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174537A (en) * 1985-04-30 1986-11-05 Stc Plc Crystal oscillator
FR2583584A1 (en) * 1985-06-14 1986-12-19 Ecole Nale Sup Meca Microtechn DEVICE FOR SUPPORTING A PIEZOELECTRIC RESONATOR WITHIN A HOUSING
US4705982A (en) * 1985-06-14 1987-11-10 Ecole Nationale Superieure De Mecanique Et Des Microtechniques Device for supporting a piezoelectric resonator inside a casing
DE4431511B4 (en) * 1993-09-23 2006-02-09 Holroyd Instruments Ltd., Bonsall, Matlock Acoustic vibration transducer

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees