JPS6344953B2 - - Google Patents

Info

Publication number
JPS6344953B2
JPS6344953B2 JP56063885A JP6388581A JPS6344953B2 JP S6344953 B2 JPS6344953 B2 JP S6344953B2 JP 56063885 A JP56063885 A JP 56063885A JP 6388581 A JP6388581 A JP 6388581A JP S6344953 B2 JPS6344953 B2 JP S6344953B2
Authority
JP
Japan
Prior art keywords
circuit
pump
signal
output
output signal
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
JP56063885A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57179388A (en
Inventor
Atsushi Oomae
Ichiro Harada
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 Techno Engineering Co Ltd
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 Techno Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Techno Engineering Co Ltd
Priority to JP6388581A priority Critical patent/JPS57179388A/ja
Publication of JPS57179388A publication Critical patent/JPS57179388A/ja
Publication of JPS6344953B2 publication Critical patent/JPS6344953B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
JP6388581A 1981-04-30 1981-04-30 Eddy current detecting device for pump Granted JPS57179388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6388581A JPS57179388A (en) 1981-04-30 1981-04-30 Eddy current detecting device for pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6388581A JPS57179388A (en) 1981-04-30 1981-04-30 Eddy current detecting device for pump

Publications (2)

Publication Number Publication Date
JPS57179388A JPS57179388A (en) 1982-11-04
JPS6344953B2 true JPS6344953B2 (de) 1988-09-07

Family

ID=13242183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6388581A Granted JPS57179388A (en) 1981-04-30 1981-04-30 Eddy current detecting device for pump

Country Status (1)

Country Link
JP (1) JPS57179388A (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551569A (en) * 1978-06-21 1980-01-08 Mitsubishi Heavy Ind Ltd Alarming method of surging and other in fluid machine

Also Published As

Publication number Publication date
JPS57179388A (en) 1982-11-04

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