GB878935A - Reinforced hollow piezoelectric ceramic transducer structures - Google Patents

Reinforced hollow piezoelectric ceramic transducer structures

Info

Publication number
GB878935A
GB878935A GB2117859A GB2117859A GB878935A GB 878935 A GB878935 A GB 878935A GB 2117859 A GB2117859 A GB 2117859A GB 2117859 A GB2117859 A GB 2117859A GB 878935 A GB878935 A GB 878935A
Authority
GB
United Kingdom
Prior art keywords
cartridge
cylinder
ceramic
arm
carriage
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
GB2117859A
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.)
Sonotone Corp
Original Assignee
Sonotone Corp
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 Sonotone Corp filed Critical Sonotone Corp
Publication of GB878935A publication Critical patent/GB878935A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

878,935. Stereophonic pick-ups. SONOTONE CORPORATION. June 19, 1959 [July 1, 1958], No. 21178/59. Class 40 (4). [Also in Group XL (b)] Thin wall cylindrical ceramic transducers are strengthened by putting them under axial compression. The cylinders may be of circular or square cross-section (see Figs. 2 and 2A), with two diagonally opposed pairs of outer electrodes and corresponding inner electrodes or a single common inner electrode as shown. The ceramic material may be barium, lead, zirconium, titanates or niobates. As applied to a stereophonic pick-up for 45-45 cut records the cylinder is mounted at one end in a rubber block 45 inside a tubular plastic housing 42, Fig. 1. The end of the cylinder bears against a neoprene washer 27 with a metal backing pad 28 against which bears a steel cylinder 32-1 in the bore of which a wire 32 is secured. Wire 32 may be of stainless steel, phosphor bronze, or beryllium copper, and passes through the centre of the ceramic transducer to its far end where it is tensioned by a screw and nut connection to compress the transducer wall axially. A synthetic plastic sleeve washer 29 covers the far end of the transducer and provides a surface to which is cemented a synthetic plastic stylus arm 37 carrying alternative styli 15. The space between the wire 32 and the ceramic cylinder 21 is filled with a damping liquid such as silicone oil. The rear of the pick-up cartridge is plugged by a nylon bush 38 through which pass four strip terminals 36 which are clamped against the electrodes of ceramic cylinder 21 by the rubber mounting 45. To mount the cartridge detachably in a tone arm the metal work of Fig. 7 is employed. The plastic cartridge case 42 has a cylindrical portion engageable by a clip 73 secured by lugs bent over in slots 74 to a carriage 80. The carriage 80 is fastened to the tone arm (not shown) and has an indent 88 co-operating with diametrally opposite indents 55 in the cartridge casing 42 to define the positions in which the alternative styli are set in place when the cartridge is rotated by an arm 51. These positions are further defined by abutment of the arm with down-turned wings 87 on the carriage 80.
GB2117859A 1958-07-01 1959-06-19 Reinforced hollow piezoelectric ceramic transducer structures Expired GB878935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74601558A 1958-07-01 1958-07-01

Publications (1)

Publication Number Publication Date
GB878935A true GB878935A (en) 1961-10-04

Family

ID=24999147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2117859A Expired GB878935A (en) 1958-07-01 1959-06-19 Reinforced hollow piezoelectric ceramic transducer structures

Country Status (5)

Country Link
BE (1) BE580282A (en)
CH (1) CH373432A (en)
DE (1) DE1146273B (en)
FR (1) FR1229127A (en)
GB (1) GB878935A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110336487A (en) * 2019-07-30 2019-10-15 长安大学 A kind of road piezoelectric energy-conversion device and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE907951C (en) * 1940-05-08 1954-04-01 Rudolf Kuerth Piezoelectric ultrasonic transducer
FR1043035A (en) * 1951-05-29 1953-11-05 Csf Improvements to ultrasonic wave generators
DE914074C (en) * 1951-11-10 1954-06-24 Siemens Ag Process for the production of ceramic oscillating bodies
DE1728983U (en) * 1954-09-30 1956-08-30 Siemens Ag PIEZOELECTRIC TUBE SWINGER.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110336487A (en) * 2019-07-30 2019-10-15 长安大学 A kind of road piezoelectric energy-conversion device and method
CN110336487B (en) * 2019-07-30 2024-04-26 长安大学 Road piezoelectric transduction device and method

Also Published As

Publication number Publication date
FR1229127A (en) 1960-09-05
DE1146273B (en) 1963-03-28
CH373432A (en) 1963-11-30
BE580282A (en) 1959-11-03

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