JPS57118154A - Measuring method for deterioration of bearing lubricant - Google Patents

Measuring method for deterioration of bearing lubricant

Info

Publication number
JPS57118154A
JPS57118154A JP385081A JP385081A JPS57118154A JP S57118154 A JPS57118154 A JP S57118154A JP 385081 A JP385081 A JP 385081A JP 385081 A JP385081 A JP 385081A JP S57118154 A JPS57118154 A JP S57118154A
Authority
JP
Japan
Prior art keywords
phase
varied
iron
detection circuit
deterioration
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.)
Granted
Application number
JP385081A
Other languages
Japanese (ja)
Other versions
JPH0330817B2 (en
Inventor
Kazuo Sano
Seigo Ando
Shigeru Izawa
Takashi Mitsuhiro
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP385081A priority Critical patent/JPS57118154A/en
Publication of JPS57118154A publication Critical patent/JPS57118154A/en
Publication of JPH0330817B2 publication Critical patent/JPH0330817B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To measure the deterioration easily and quickly, by drawing out a bearing lubricant such as grease and detecting the impedance variation of a sensor coil. CONSTITUTION:Bearing grease is draw out in a plastic or glass vessel 1 from a suction inlet 13 by operation of a piston 11. A sensor coil 2 is provided with this vessel 1 and its detection signal is measured by a detection circuit. Output of a standard oscillator 3 is converted into a suitable frequency by a divider 4 in the detection circuit and is inputted into a feedback amplifier 6 and a phase detector 7 after converting into a suitable voltage level by an attenuator 5. A reactance component of the impedance of the coil 2 is varied by iron (ferromagnetic powder) and the output waveform phase of the amplifier 6 is varied by the exist or not and the content of iron. This phase variation is detected by the detector 7 and is amplified and displayed on an indicator 9.
JP385081A 1981-01-16 1981-01-16 Measuring method for deterioration of bearing lubricant Granted JPS57118154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP385081A JPS57118154A (en) 1981-01-16 1981-01-16 Measuring method for deterioration of bearing lubricant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP385081A JPS57118154A (en) 1981-01-16 1981-01-16 Measuring method for deterioration of bearing lubricant

Publications (2)

Publication Number Publication Date
JPS57118154A true JPS57118154A (en) 1982-07-22
JPH0330817B2 JPH0330817B2 (en) 1991-05-01

Family

ID=11568653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP385081A Granted JPS57118154A (en) 1981-01-16 1981-01-16 Measuring method for deterioration of bearing lubricant

Country Status (1)

Country Link
JP (1) JPS57118154A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH074525U (en) * 1991-04-17 1995-01-24 大阪施設工業株式会社 Simple and stable pole
KR20030035695A (en) * 2001-11-02 2003-05-09 주식회사 포스코 Apparatus for measuring and collecting for bearing abrasion particle in bearing housing
DE102006015111A1 (en) * 2006-03-31 2007-10-04 Schaeffler Kg Rotatable, swiveling or axial ball and roller bearing for aging process, has lubricating grease-sensor provided with piezo-component utilized as measuring equipment, where sensor and/or piezo-component are designed in lamellar manner
JP2007316057A (en) * 2006-04-28 2007-12-06 Diesel United:Kk Conductive material concentration measuring device and magnetic material concentration measuring device
JP2008256664A (en) * 2007-04-09 2008-10-23 Diesel United:Kk Electric conductor concentration measuring apparatus and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH074525U (en) * 1991-04-17 1995-01-24 大阪施設工業株式会社 Simple and stable pole
KR20030035695A (en) * 2001-11-02 2003-05-09 주식회사 포스코 Apparatus for measuring and collecting for bearing abrasion particle in bearing housing
DE102006015111A1 (en) * 2006-03-31 2007-10-04 Schaeffler Kg Rotatable, swiveling or axial ball and roller bearing for aging process, has lubricating grease-sensor provided with piezo-component utilized as measuring equipment, where sensor and/or piezo-component are designed in lamellar manner
WO2007115518A2 (en) 2006-03-31 2007-10-18 Schaeffler Kg Rotary, pivot or axial bearing comprising a grease sensor
JP2007316057A (en) * 2006-04-28 2007-12-06 Diesel United:Kk Conductive material concentration measuring device and magnetic material concentration measuring device
JP2008256664A (en) * 2007-04-09 2008-10-23 Diesel United:Kk Electric conductor concentration measuring apparatus and method

Also Published As

Publication number Publication date
JPH0330817B2 (en) 1991-05-01

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