JPS531051A - Near-by detector - Google Patents

Near-by detector

Info

Publication number
JPS531051A
JPS531051A JP7429776A JP7429776A JPS531051A JP S531051 A JPS531051 A JP S531051A JP 7429776 A JP7429776 A JP 7429776A JP 7429776 A JP7429776 A JP 7429776A JP S531051 A JPS531051 A JP S531051A
Authority
JP
Japan
Prior art keywords
transmitter
detector
bandpass
reveiver
arms
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
JP7429776A
Other languages
Japanese (ja)
Inventor
Hisao Hanmura
Ikuro Masuda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7429776A priority Critical patent/JPS531051A/en
Publication of JPS531051A publication Critical patent/JPS531051A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

PURPOSE: To promote the responsive character of collision prevention of arms such as automatic operating use robot, by means of measuring the distance between transmitter and reveiver when using a narrow bandpass ultrasonic wave transmitter and broad bandpass receiver.
COPYRIGHT: (C)1978,JPO&Japio
JP7429776A 1976-06-25 1976-06-25 Near-by detector Pending JPS531051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7429776A JPS531051A (en) 1976-06-25 1976-06-25 Near-by detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7429776A JPS531051A (en) 1976-06-25 1976-06-25 Near-by detector

Publications (1)

Publication Number Publication Date
JPS531051A true JPS531051A (en) 1978-01-07

Family

ID=13543054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7429776A Pending JPS531051A (en) 1976-06-25 1976-06-25 Near-by detector

Country Status (1)

Country Link
JP (1) JPS531051A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647272A (en) * 1979-09-25 1981-04-28 Hitachi Zosen Corp Low-frequency pulse tig welding method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647272A (en) * 1979-09-25 1981-04-28 Hitachi Zosen Corp Low-frequency pulse tig welding method

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