JPH0115167B2 - - Google Patents

Info

Publication number
JPH0115167B2
JPH0115167B2 JP56094156A JP9415681A JPH0115167B2 JP H0115167 B2 JPH0115167 B2 JP H0115167B2 JP 56094156 A JP56094156 A JP 56094156A JP 9415681 A JP9415681 A JP 9415681A JP H0115167 B2 JPH0115167 B2 JP H0115167B2
Authority
JP
Japan
Prior art keywords
sound absorbing
absorbing material
ultrasonic
width
medium
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
JP56094156A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57208721A (en
Inventor
Noriaki Sekine
Takeshi Sawaragi
Hiroshi Kitamura
Mikito Baba
Nobuyuki Ogasawara
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.)
Mitsumi Electric Co Ltd
Original Assignee
Mitsumi Electric Co 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 Mitsumi Electric Co Ltd filed Critical Mitsumi Electric Co Ltd
Priority to JP56094156A priority Critical patent/JPS57208721A/ja
Publication of JPS57208721A publication Critical patent/JPS57208721A/ja
Publication of JPH0115167B2 publication Critical patent/JPH0115167B2/ja
Granted 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 elements; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/36—Time-delay networks with non-adjustable delay time

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
JP56094156A 1981-06-18 1981-06-18 Ultrasonic wave delay line Granted JPS57208721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56094156A JPS57208721A (en) 1981-06-18 1981-06-18 Ultrasonic wave delay line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56094156A JPS57208721A (en) 1981-06-18 1981-06-18 Ultrasonic wave delay line

Publications (2)

Publication Number Publication Date
JPS57208721A JPS57208721A (en) 1982-12-21
JPH0115167B2 true JPH0115167B2 (enrdf_load_stackoverflow) 1989-03-16

Family

ID=14102506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56094156A Granted JPS57208721A (en) 1981-06-18 1981-06-18 Ultrasonic wave delay line

Country Status (1)

Country Link
JP (1) JPS57208721A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63147028U (enrdf_load_stackoverflow) * 1987-03-16 1988-09-28

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5219942A (en) * 1975-08-07 1977-02-15 Fujitsu Ltd Pulse width change circuit
JPS55165511U (enrdf_load_stackoverflow) * 1979-05-15 1980-11-28

Also Published As

Publication number Publication date
JPS57208721A (en) 1982-12-21

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