JPS5732843B2 - - Google Patents

Info

Publication number
JPS5732843B2
JPS5732843B2 JP14981075A JP14981075A JPS5732843B2 JP S5732843 B2 JPS5732843 B2 JP S5732843B2 JP 14981075 A JP14981075 A JP 14981075A JP 14981075 A JP14981075 A JP 14981075A JP S5732843 B2 JPS5732843 B2 JP S5732843B2
Authority
JP
Japan
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
JP14981075A
Other languages
Japanese (ja)
Other versions
JPS5272478A (en
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 filed Critical
Priority to JP50149810A priority Critical patent/JPS5272478A/ja
Priority to GB51467/76A priority patent/GB1568229A/en
Priority to US05/749,072 priority patent/US4131872A/en
Priority to DE2656256A priority patent/DE2656256C3/de
Priority to FR7637688A priority patent/FR2335853A1/fr
Publication of JPS5272478A publication Critical patent/JPS5272478A/ja
Publication of JPS5732843B2 publication Critical patent/JPS5732843B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Traffic Control Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP50149810A 1975-12-15 1975-12-15 Supersonic switch Granted JPS5272478A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP50149810A JPS5272478A (en) 1975-12-15 1975-12-15 Supersonic switch
GB51467/76A GB1568229A (en) 1975-12-15 1976-12-09 Ultrasonic wave echo-type switch
US05/749,072 US4131872A (en) 1975-12-15 1976-12-09 Ultrasonic wave echo-type switch
DE2656256A DE2656256C3 (de) 1975-12-15 1976-12-11 Schaltungsanordnung zur Überwachung eines Raumes mit Ultraschall
FR7637688A FR2335853A1 (fr) 1975-12-15 1976-12-14 Appareil de detection d'objets par impulsions ultrasonores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50149810A JPS5272478A (en) 1975-12-15 1975-12-15 Supersonic switch

Publications (2)

Publication Number Publication Date
JPS5272478A JPS5272478A (en) 1977-06-16
JPS5732843B2 true JPS5732843B2 (fr) 1982-07-13

Family

ID=15483196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50149810A Granted JPS5272478A (en) 1975-12-15 1975-12-15 Supersonic switch

Country Status (1)

Country Link
JP (1) JPS5272478A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5585272A (en) * 1978-12-22 1980-06-27 Kooa Denshi Kogyo Kk Body confirming device
JPS57172623A (en) * 1981-04-17 1982-10-23 Tokyo Shibaura Electric Co Automatic electricity-saving device
JPS58150878A (ja) * 1982-03-03 1983-09-07 Mitsubishi Electric Corp 物体検出装置
JPS59104581A (ja) * 1982-12-06 1984-06-16 Mitsui Constr Co Ltd 地下掘削孔における距離測定方法
JPS61139709A (ja) * 1984-12-12 1986-06-27 Oki Electric Ind Co Ltd 高さ検出方式
JPS6454278A (en) * 1987-08-25 1989-03-01 Matsushita Electric Works Ltd Controller for snow melting apparatus

Also Published As

Publication number Publication date
JPS5272478A (en) 1977-06-16

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