ES178453A1 - Mejoras en aparatos determinadores de frecuencia - Google Patents

Mejoras en aparatos determinadores de frecuencia

Info

Publication number
ES178453A1
ES178453A1 ES0178453A ES178453A ES178453A1 ES 178453 A1 ES178453 A1 ES 178453A1 ES 0178453 A ES0178453 A ES 0178453A ES 178453 A ES178453 A ES 178453A ES 178453 A1 ES178453 A1 ES 178453A1
Authority
ES
Spain
Prior art keywords
contact
basin
electrodes
frequency determining
determining devices
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
ES0178453A
Other languages
English (en)
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES178453A1 publication Critical patent/ES178453A1/es
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
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
    • H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
    • H03H9/1028—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device the BAW device being held between spring terminals

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
ES0178453A 1944-08-30 1947-06-14 Mejoras en aparatos determinadores de frecuencia Expired ES178453A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US551984A US2405181A (en) 1944-08-30 1944-08-30 Frequency determining unit

Publications (1)

Publication Number Publication Date
ES178453A1 true ES178453A1 (es) 1947-08-01

Family

ID=24203477

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0178453A Expired ES178453A1 (es) 1944-08-30 1947-06-14 Mejoras en aparatos determinadores de frecuencia

Country Status (3)

Country Link
US (1) US2405181A (da)
BE (1) BE473656A (da)
ES (1) ES178453A1 (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429826A (en) * 1945-07-12 1947-10-28 Walter E Kuenstler Crystal holder

Also Published As

Publication number Publication date
US2405181A (en) 1946-08-06
BE473656A (da)

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