JPH0542879B2 - - Google Patents

Info

Publication number
JPH0542879B2
JPH0542879B2 JP59073331A JP7333184A JPH0542879B2 JP H0542879 B2 JPH0542879 B2 JP H0542879B2 JP 59073331 A JP59073331 A JP 59073331A JP 7333184 A JP7333184 A JP 7333184A JP H0542879 B2 JPH0542879 B2 JP H0542879B2
Authority
JP
Japan
Prior art keywords
diaphragm
ultrasonic
protection member
piezoelectric ceramic
shape
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 - Lifetime
Application number
JP59073331A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60216698A (ja
Inventor
Ryoichi Utsunomya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59073331A priority Critical patent/JPS60216698A/ja
Publication of JPS60216698A publication Critical patent/JPS60216698A/ja
Publication of JPH0542879B2 publication Critical patent/JPH0542879B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP59073331A 1984-04-12 1984-04-12 超音波セラミツクマイクロホン Granted JPS60216698A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59073331A JPS60216698A (ja) 1984-04-12 1984-04-12 超音波セラミツクマイクロホン

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59073331A JPS60216698A (ja) 1984-04-12 1984-04-12 超音波セラミツクマイクロホン

Publications (2)

Publication Number Publication Date
JPS60216698A JPS60216698A (ja) 1985-10-30
JPH0542879B2 true JPH0542879B2 (h) 1993-06-29

Family

ID=13515073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59073331A Granted JPS60216698A (ja) 1984-04-12 1984-04-12 超音波セラミツクマイクロホン

Country Status (1)

Country Link
JP (1) JPS60216698A (h)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10158015B4 (de) * 2001-11-27 2010-10-14 Hydrometer Gmbh Ultraschallwandler und Durchflussmesser

Also Published As

Publication number Publication date
JPS60216698A (ja) 1985-10-30

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