JPS64414A - Rotating angle detector - Google Patents

Rotating angle detector

Info

Publication number
JPS64414A
JPS64414A JP15455087A JP15455087A JPS64414A JP S64414 A JPS64414 A JP S64414A JP 15455087 A JP15455087 A JP 15455087A JP 15455087 A JP15455087 A JP 15455087A JP S64414 A JPS64414 A JP S64414A
Authority
JP
Japan
Prior art keywords
actual
count value
power supply
detection signal
turned
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
JP15455087A
Other languages
Japanese (ja)
Other versions
JPH01414A (en
JPH067061B2 (en
Inventor
Takahide Nagahama
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP15455087A priority Critical patent/JPH067061B2/en
Publication of JPS64414A publication Critical patent/JPS64414A/en
Publication of JPH01414A publication Critical patent/JPH01414A/en
Publication of JPH067061B2 publication Critical patent/JPH067061B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To improve the accuracy of detection by comparing the actual detection signal from an absolute angle detector and a stored current off time detection signal when a power supply is turned on again and correcting a power supply off time count value to an actual count value corresponding to the actual absolute rotating angle.
CONSTITUTION: The detection signal from a resolver 4 and the count value by a reversible counter 8 are respectively stored in 1st and 2nd memories 9 and 10 when the power supply of the device is off. The actual detection signal from the resolver 4 and the power supply off time detection signal in the memory 9 are compared by a comparator 11 when the power supply is turned on again. The power supply off time count value in the memory 10 is then corrected to the actual count value corresponding to the actual absolute rotating angle by a corrector 12 according to the difference therebetween. The absolute rotating angle of a rotating member 1 is, therefore, exactly detected as the sum of (prescribed rotating angle) × (actual count value obtd. by the correction) and the actual detection signal from the resolver 4 after the power source is turned on again even if the member 1 turns during the time from the power source off before the power source is turned on again. Namely, the need for matching the origin at the time when the power source is turned on again is eliminated and the accuracy of the detection is improved.
COPYRIGHT: (C)1989,JPO&Japio
JP15455087A 1987-06-23 1987-06-23 Rotation angle detector Expired - Lifetime JPH067061B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15455087A JPH067061B2 (en) 1987-06-23 1987-06-23 Rotation angle detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15455087A JPH067061B2 (en) 1987-06-23 1987-06-23 Rotation angle detector

Publications (3)

Publication Number Publication Date
JPS64414A true JPS64414A (en) 1989-01-05
JPH01414A JPH01414A (en) 1989-01-05
JPH067061B2 JPH067061B2 (en) 1994-01-26

Family

ID=15586703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15455087A Expired - Lifetime JPH067061B2 (en) 1987-06-23 1987-06-23 Rotation angle detector

Country Status (1)

Country Link
JP (1) JPH067061B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0361808A (en) * 1989-07-31 1991-03-18 Toshiba Corp Position detector
JPH06317433A (en) * 1993-04-12 1994-11-15 Makome Kenkyusho:Kk Pseudo-absolute value type scale device
JP2011080841A (en) * 2009-10-06 2011-04-21 Jtekt Corp Rotational angle detection device and electric power steering system
JP2012098241A (en) * 2010-11-05 2012-05-24 Yaskawa Electric Corp Encoder, servo unit and position data calculation method
JP2015524053A (en) * 2012-05-16 2015-08-20 ファロ テクノロジーズ インコーポレーテッド Apparatus and method for correcting bearing runout of laser tracker
US9423282B2 (en) 2014-06-12 2016-08-23 Faro Technologies, Inc. Metrology device and a method for compensating for bearing runout error
US9482525B2 (en) 2012-05-16 2016-11-01 Faro Technologies, Inc. Apparatus to compensate bearing runout in a three-dimensional coordinate measuring system
US9488476B2 (en) 2014-02-06 2016-11-08 Faro Technologies, Inc. Apparatus and method to compensate bearing runout in an articulated arm coordinate measurement machine
US9746304B2 (en) 2012-05-16 2017-08-29 Faro Technologies, Inc. Apparatus and method to compensate bearing runout in an articulated arm coordinate measurement machine
WO2017169604A1 (en) * 2016-03-30 2017-10-05 日本電産サンキョー株式会社 Motor system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0361808A (en) * 1989-07-31 1991-03-18 Toshiba Corp Position detector
JPH06317433A (en) * 1993-04-12 1994-11-15 Makome Kenkyusho:Kk Pseudo-absolute value type scale device
JP2011080841A (en) * 2009-10-06 2011-04-21 Jtekt Corp Rotational angle detection device and electric power steering system
US8558534B2 (en) 2009-10-06 2013-10-15 Jtekt Corporation Rotational angle detection device and electric power steering system
JP2012098241A (en) * 2010-11-05 2012-05-24 Yaskawa Electric Corp Encoder, servo unit and position data calculation method
US9746304B2 (en) 2012-05-16 2017-08-29 Faro Technologies, Inc. Apparatus and method to compensate bearing runout in an articulated arm coordinate measurement machine
JP2015524053A (en) * 2012-05-16 2015-08-20 ファロ テクノロジーズ インコーポレーテッド Apparatus and method for correcting bearing runout of laser tracker
US10563969B2 (en) 2012-05-16 2020-02-18 Faro Technologies, Inc. Apparatus and method to compensate bearing runout in an articulated arm coordinate measurement machine
US9482525B2 (en) 2012-05-16 2016-11-01 Faro Technologies, Inc. Apparatus to compensate bearing runout in a three-dimensional coordinate measuring system
US9488476B2 (en) 2014-02-06 2016-11-08 Faro Technologies, Inc. Apparatus and method to compensate bearing runout in an articulated arm coordinate measurement machine
US9423282B2 (en) 2014-06-12 2016-08-23 Faro Technologies, Inc. Metrology device and a method for compensating for bearing runout error
WO2017169604A1 (en) * 2016-03-30 2017-10-05 日本電産サンキョー株式会社 Motor system
JP2017181235A (en) * 2016-03-30 2017-10-05 日本電産サンキョー株式会社 Motor system
CN108885125A (en) * 2016-03-30 2018-11-23 日本电产株式会社 Electric system
KR20180128414A (en) * 2016-03-30 2018-12-03 니혼덴산가부시키가이샤 Motor system
US10666171B2 (en) 2016-03-30 2020-05-26 Nidec Corporation Motor System
CN108885125B (en) * 2016-03-30 2022-04-19 日本电产株式会社 Electric machine system

Also Published As

Publication number Publication date
JPH067061B2 (en) 1994-01-26

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