JPS6415519A - Displacement detector for rotary member - Google Patents

Displacement detector for rotary member

Info

Publication number
JPS6415519A
JPS6415519A JP17067787A JP17067787A JPS6415519A JP S6415519 A JPS6415519 A JP S6415519A JP 17067787 A JP17067787 A JP 17067787A JP 17067787 A JP17067787 A JP 17067787A JP S6415519 A JPS6415519 A JP S6415519A
Authority
JP
Japan
Prior art keywords
frequency
rotary member
gain
output
filter
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
JP17067787A
Other languages
Japanese (ja)
Other versions
JPH0833162B2 (en
Inventor
Manabu Taniguchi
Shunsuke Nakaura
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.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko Co 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 Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Priority to JP62170677A priority Critical patent/JPH0833162B2/en
Publication of JPS6415519A publication Critical patent/JPS6415519A/en
Publication of JPH0833162B2 publication Critical patent/JPH0833162B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Rolling Contact Bearings (AREA)

Abstract

PURPOSE:To detect displacement of high speed rotary member accurately by coupling a lowpass filter and a notch filter in series. CONSTITUTION:When an output from an absolute value circuit 11 is passed through a lowpass filter 12, gain is decreased for frequency higher than (f2) and noise of higher frequency than (f3) is removed, but the gain and the phase do not vary for frequency lower than (f2). When output from the lowpass filter 12 is further passed through a notch filter 13, only (f2) frequency component is removed therefrom. Since output from the detector 10 completely removed of detector oscillation frequency component (f1) and high frequency noise is produced from the notch filter 13, the gain and the phase do not vary in a frequency area lower than (f1). Consequently, displacement of high speed rotary member can be detected accurately.
JP62170677A 1987-07-07 1987-07-07 Device for detecting displacement of rotating body in magnetic bearing device Expired - Fee Related JPH0833162B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62170677A JPH0833162B2 (en) 1987-07-07 1987-07-07 Device for detecting displacement of rotating body in magnetic bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62170677A JPH0833162B2 (en) 1987-07-07 1987-07-07 Device for detecting displacement of rotating body in magnetic bearing device

Publications (2)

Publication Number Publication Date
JPS6415519A true JPS6415519A (en) 1989-01-19
JPH0833162B2 JPH0833162B2 (en) 1996-03-29

Family

ID=15909341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62170677A Expired - Fee Related JPH0833162B2 (en) 1987-07-07 1987-07-07 Device for detecting displacement of rotating body in magnetic bearing device

Country Status (1)

Country Link
JP (1) JPH0833162B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000072972A1 (en) 1999-05-31 2000-12-07 Matsushita Electric Industrial Co., Ltd. Crushing apparatus, crushing method, disassembling method, and valuables recovering method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223067A (en) * 1984-04-18 1985-11-07 Fujitsu Ten Ltd Disk revolving speed controller
JPS61206820A (en) * 1985-03-11 1986-09-13 Ntn Toyo Bearing Co Ltd Magnetic bearing control device
JPS61286609A (en) * 1985-06-11 1986-12-17 Ntn Toyo Bearing Co Ltd Control device of control type radial magnetic bearing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223067A (en) * 1984-04-18 1985-11-07 Fujitsu Ten Ltd Disk revolving speed controller
JPS61206820A (en) * 1985-03-11 1986-09-13 Ntn Toyo Bearing Co Ltd Magnetic bearing control device
JPS61286609A (en) * 1985-06-11 1986-12-17 Ntn Toyo Bearing Co Ltd Control device of control type radial magnetic bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000072972A1 (en) 1999-05-31 2000-12-07 Matsushita Electric Industrial Co., Ltd. Crushing apparatus, crushing method, disassembling method, and valuables recovering method

Also Published As

Publication number Publication date
JPH0833162B2 (en) 1996-03-29

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