GB569285A - Piezo-electric device - Google Patents

Piezo-electric device

Info

Publication number
GB569285A
GB569285A GB19017/43A GB1901743A GB569285A GB 569285 A GB569285 A GB 569285A GB 19017/43 A GB19017/43 A GB 19017/43A GB 1901743 A GB1901743 A GB 1901743A GB 569285 A GB569285 A GB 569285A
Authority
GB
United Kingdom
Prior art keywords
piezo
phosphate
electric
isomorphous
nov
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
GB19017/43A
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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Publication of GB569285A publication Critical patent/GB569285A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/80Constructional details
    • H10N30/85Piezoelectric or electrostrictive active materials

Landscapes

  • Investigating Or Analysing Biological Materials (AREA)
  • Light Receiving Elements (AREA)

Abstract

569,285. Piezo-electric crystals. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING AKT.-GES. Nov. 15, 1943, No. 19017. Convention date, Nov. 22, 1942. [Class 40 (v)] A piezo-electric device is characterised in that it comprises a piezo-electric crystal formed of a substance which belongs to the group of salts which is isomorphous with primary potassium phosphate (KH2PO4). Examples of isomorphous salts are potassium arsenate and the phosphate and arsenate of ammonium. Primary potassium deutero phosphate (KD 2PO 4) is also mentioned. The crystal may be used in oscillators, filters, relays, acoustic translating devices, oscillographs and piezometers.
GB19017/43A 1942-11-21 1943-11-15 Piezo-electric device Expired GB569285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH569285X 1942-11-21

Publications (1)

Publication Number Publication Date
GB569285A true GB569285A (en) 1945-05-16

Family

ID=4520810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19017/43A Expired GB569285A (en) 1942-11-21 1943-11-15 Piezo-electric device

Country Status (1)

Country Link
GB (1) GB569285A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442755A (en) * 1945-06-11 1948-06-08 Bell Telephone Labor Inc Piezoelectric crystal growing method
US2484635A (en) * 1943-08-09 1949-10-11 Bell Telephone Labor Inc Piezoelectric crystal apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484635A (en) * 1943-08-09 1949-10-11 Bell Telephone Labor Inc Piezoelectric crystal apparatus
US2442755A (en) * 1945-06-11 1948-06-08 Bell Telephone Labor Inc Piezoelectric crystal growing method

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