JPS544100A - Alarm unit using ultrasonic waves - Google Patents

Alarm unit using ultrasonic waves

Info

Publication number
JPS544100A
JPS544100A JP6880677A JP6880677A JPS544100A JP S544100 A JPS544100 A JP S544100A JP 6880677 A JP6880677 A JP 6880677A JP 6880677 A JP6880677 A JP 6880677A JP S544100 A JPS544100 A JP S544100A
Authority
JP
Japan
Prior art keywords
ultrasonic waves
alarm unit
increase
phase
neglect
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.)
Pending
Application number
JP6880677A
Other languages
English (en)
Inventor
Hiroshi Ohashi
Hironobu Inoue
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP6880677A priority Critical patent/JPS544100A/ja
Publication of JPS544100A publication Critical patent/JPS544100A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
JP6880677A 1977-06-13 1977-06-13 Alarm unit using ultrasonic waves Pending JPS544100A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6880677A JPS544100A (en) 1977-06-13 1977-06-13 Alarm unit using ultrasonic waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6880677A JPS544100A (en) 1977-06-13 1977-06-13 Alarm unit using ultrasonic waves

Publications (1)

Publication Number Publication Date
JPS544100A true JPS544100A (en) 1979-01-12

Family

ID=13384319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6880677A Pending JPS544100A (en) 1977-06-13 1977-06-13 Alarm unit using ultrasonic waves

Country Status (1)

Country Link
JP (1) JPS544100A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5986250U (ja) * 1982-11-29 1984-06-11 株式会社クボタ ２連式衝撃破砕機
JPS6223446A (ja) * 1985-07-23 1987-01-31 川崎重工業株式会社 複式衝撃破砕機
JPH0498441U (ja) * 1991-01-28 1992-08-26
JP2018025521A (ja) * 2016-08-12 2018-02-15 日本無線株式会社 ドプラレーダ検出装置、プログラム及び方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5986250U (ja) * 1982-11-29 1984-06-11 株式会社クボタ ２連式衝撃破砕機
JPS6223446A (ja) * 1985-07-23 1987-01-31 川崎重工業株式会社 複式衝撃破砕機
JPH0349618B2 (ja) * 1985-07-23 1991-07-30 Kawasaki Heavy Ind Ltd
JPH0498441U (ja) * 1991-01-28 1992-08-26
JP2018025521A (ja) * 2016-08-12 2018-02-15 日本無線株式会社 ドプラレーダ検出装置、プログラム及び方法

Similar Documents

Publication Publication Date Title
JPS5430066A (en) Electromagnetic flow meter
JPS544100A (en) Alarm unit using ultrasonic waves
JPS5324976A (en) Means for positioning servo-valve spool
JPS54670A (en) Alarm wrista watch
JPS5426698A (en) Alarm unit using ultrasonic waves
JPS52107656A (en) Electronic range
JPS5210170A (en) Liquid surface detector
JPS5337456A (en) Distance measuring device
JPS5373161A (en) Ultrasonic type position detector
JPS52109398A (en) Disaster prevention recording device
JPS5332075A (en) Sound detecting unit
JPS52123256A (en) Extreme value measuring device
JPS52149099A (en) Automatic sensing range correcting system of ultrasonic sensors
JPS5374900A (en) Ultrasonic alarm
JPS5374899A (en) Ultrasonic alarm
JPS53122154A (en) Fuel atomizer
JPS5269657A (en) Detection of position of welded portion of austenitic stainless steel
JPS5379183A (en) Control device
JPS5374897A (en) Ultrasonic alarm
JPS52147477A (en) Frequency analyzer
JPS52100893A (en) Doppler radar
JPS5354085A (en) Ultrasonic flaw detector
JPS5441783A (en) Method and apparatus for detection of ultrasonic wave receiving signals
JPS5397452A (en) Storage method of acoustic holography
JPS52122366A (en) Indazole derivatives