GB1414517A – Rotary inductive transducers
– Google Patents
GB1414517A – Rotary inductive transducers
– Google Patents
Rotary inductive transducers
Info
Publication number
GB1414517A
GB1414517A
GB5430372A
GB5430372A
GB1414517A
GB 1414517 A
GB1414517 A
GB 1414517A
GB 5430372 A
GB5430372 A
GB 5430372A
GB 5430372 A
GB5430372 A
GB 5430372A
GB 1414517 A
GB1414517 A
GB 1414517A
Authority
GB
United Kingdom
Prior art keywords
paths
path
stator
conductor
rotor
Prior art date
1971-11-26
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
GB5430372A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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.)
1971-11-26
Filing date
1972-11-24
Publication date
1975-11-19
1971-11-26
Priority claimed from DE19712158713
external-priority
patent/DE2158713C3/en
1972-11-24
Application filed by Robert Bosch GmbH
filed
Critical
Robert Bosch GmbH
1975-11-19
Publication of GB1414517A
publication
Critical
patent/GB1414517A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
230000001939
inductive effect
Effects
0.000
title
abstract
3
239000004020
conductor
Substances
0.000
abstract
11
230000010355
oscillation
Effects
0.000
abstract
1
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
H03M1/00—Analogue/digital conversion; Digital/analogue conversion
G—PHYSICS
G01—MEASURING; TESTING
G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
G01D5/2073—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by movement of a single coil with respect to two or more coils
G—PHYSICS
G01—MEASURING; TESTING
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P13/00—Indicating or recording presence, absence, or direction, of movement
G01P13/02—Indicating direction only, e.g. by weather vane
G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
G01P13/045—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication
G—PHYSICS
G01—MEASURING; TESTING
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P3/42—Devices characterised by the use of electric or magnetic means
G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
G—PHYSICS
G01—MEASURING; TESTING
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P3/42—Devices characterised by the use of electric or magnetic means
G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
G01P3/484—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by contact-making switches
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
H03M1/00—Analogue/digital conversion; Digital/analogue conversion
H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise
Abstract
1414517 Rotary inductive transducers ROBERT BOSCH GmbH 24 Nov 1972 [26 Nov 1971] 54303/72 Heading G1N In a rotary inductive transducer, a rotor 6 and a stator 21 are adjacently arranged, each being provided with at least one meander-shaped electrical conductor path each extending along the arc of a circle centred on the axis of rotation, the conductor path or paths of the rotor each forming a self-contained short circuit and being inductively coupled to an A.C. energized arcuate conductor path 22 on the stator, and the stator being arranged to supply amplitude-modulated voltages when the rotor rotates relative to the stator. As shown in Fig.1, the rotor consists of two self-contained conductor paths 3, 4. The outer path 4 has four times as many ribs as does the inner path 3. As shown in Fig.2, the stator consists of four meander-shaped conductor paths 11, 12, 13, 14. The paths 11, 12 have a configuration adapted to the configuration of the path 3, as do the paths 13, 14 to the path 4. The paths 13, 14 are staggered relative to one another by half a segment d signifying that the meander oscillations are shifted in phase by 90 degrees relative to each other. The paths 11, 12 are similarly staggered. Also arranged on the stator 21 is the arcuate conductor path 22 inductively coupled to the paths 3, 4. This path is in the form of a spiral and forms part of the resonant circuit of an oscillator 23. The path 22 is also galvanically coupled to the paths 11-14 at points 11′-14′. The paths 11-14 are respectively coupled to differential amplifiers 29, 30, 31, 32 via rectifiers G. Rectangular pulses appear at the outputs of the amplifiers when the rotor rotates. The out-of-phase arrangement of the paths 11,12 and 13, 14 results in the resolution of a rotary angle into a sine and a cosine component. An indication of the direction of rotation can be derived from the phase relationship. Counters may be connected to the amplifiers. In an alternative arrangement, Fig.3 (not shown), the rotor comprises a single self-contained conductor path having an aperiodic meander arrangement which has a uniform linear frequency change. The stator has an identical conductor path and a single pulse is provided at each full revolution of the input system, namely when the paths of the two are in exact register. In a further alternative arrangement Fig.4 (not shown), the rotor comprises a pseudo-stochastic rectangular pulse train conductor configuration, a single pulse being provided at each full revolution if the stator comprises an identical conductor configuration. In further alternative arrangements, conductor paths having different form functions may be provided a plurality of times on one circumference. Also, stochastic character paths may be used.
GB5430372A
1971-11-26
1972-11-24
Rotary inductive transducers
Expired
GB1414517A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19712158713
DE2158713C3
(en)
1971-11-26
Inductive rotary encoder
Publications (1)
Publication Number
Publication Date
GB1414517A
true
GB1414517A
(en)
1975-11-19
Family
ID=5826249
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5430372A
Expired
GB1414517A
(en)
1971-11-26
1972-11-24
Rotary inductive transducers
Country Status (5)
Country
Link
US
(1)
US3812481A
(en)
JP
(1)
JPS4863749A
(en)
FR
(1)
FR2170406A5
(en)
GB
(1)
GB1414517A
(en)
IT
(1)
IT971206B
(en)
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US9945653B2
(en)
2004-12-20
2018-04-17
Mark Anthony Howard
Inductive position sensor
CN108871183A
(en)
*
2018-06-15
2018-11-23
上海卫星工程研究所
A kind of shaft angle monitor device for spacecraft mechanism
CN109305561A
(en)
*
2018-10-10
2019-02-05
彩虹（合肥）液晶玻璃有限公司
Synchronizing device, conveying equipment and synchronisation control means
CN112740000A
(en)
*
2018-09-21
2021-04-30
蒂森克虏伯普利斯坦股份公司
Inductive angle sensor for a motor vehicle steering system
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Publication date
Assignee
Title
US3898635A
(en)
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1973-12-20
1975-08-05
Ibm
Position measuring transformer
IT1035797B
(en)
*
1974-05-21
1979-10-20
Lucas Electrical Co Ltd
ANGULAR POSITION SIGNAL GENERATOR FOR ENGINE START-UP EQUIPMENT
DE2847522A1
(en)
*
1978-11-02
1980-05-14
Bosch Gmbh Robert
INDUCTIVE ENCODER AND EVALUATION HERE
JPS5578909U
(en)
*
1978-11-25
1980-05-30
FR2495327A1
(en)
*
1980-12-03
1982-06-04
Interelec Sa
Logic measuring circuit for distance travelled by vehicle – contains shift register containing binary sequence for comparison with bit sequence generated by coded wheel
CA1243374A
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*
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Displacement measurement devices and a signal processing method and system for use therein
US4985691A
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*
1986-02-26
1991-01-15
University Of Pittsburgh
Contactless motion sensor
US5150115A
(en)
*
1990-12-13
1992-09-22
Xerox Corporation
Inductive type incremental angular position transducer and rotary motion encoder having once-around index pulse
US5406155A
(en)
*
1992-06-03
1995-04-11
Trw Inc.
Method and apparatus for sensing relative position between two relatively rotatable members
US6249234B1
(en)
1994-05-14
2001-06-19
Absolute Sensors Limited
Position detector
US20030062889A1
(en)
*
1996-12-12
2003-04-03
Synaptics (Uk) Limited
Position detector
US6788221B1
(en)
1996-06-28
2004-09-07
Synaptics (Uk) Limited
Signal processing apparatus and method
JP4001989B2
(en)
*
1996-11-29
2007-10-31
ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング
Scanning member of position measuring device
US6005387A
(en)
*
1997-04-16
1999-12-21
Mitutoyo Corporation
Reduced offset high accuracy induced current position transducer
JP2002502497A
(en)
1997-05-28
2002-01-22
シナプティクス（ユーケー）リミテッド
Converter and manufacturing method
GB9720954D0
(en)
1997-10-02
1997-12-03
Scient Generics Ltd
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1997-10-15
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1997-11-21
1999-05-11
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(en)
1998-05-22
1998-07-22
Scient Generics Ltd
Rotary encoder
DE19840665C2
(en)
*
1998-09-05
2002-08-14
Oechsler Ag
Method for applying a sensor current loop to a line carrier and inductive sensor
CA2352363A1
(en)
*
1998-11-27
2000-06-08
Synaptics (Uk) Limited
Position sensor
US7019672B2
(en)
*
1998-12-24
2006-03-28
Synaptics (Uk) Limited
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WO2002103622A2
(en)
*
2001-05-21
2002-12-27
Synaptics (Uk) Limited
Position sensor
GB2403017A
(en)
*
2002-03-05
2004-12-22
Synaptics
Position sensor
US7907130B2
(en)
*
2002-06-05
2011-03-15
Synaptics (Uk) Limited
Signal transfer method and apparatus
GB0317370D0
(en)
*
2003-07-24
2003-08-27
Synaptics Uk Ltd
Magnetic calibration array
GB0319945D0
(en)
*
2003-08-26
2003-09-24
Synaptics Uk Ltd
Inductive sensing system
EP1715298B1
(en)
2005-04-19
2017-07-19
Mitutoyo Corporation
Absolute rotary encoder and micrometer
US8570028B2
(en)
2007-05-10
2013-10-29
Cambridge Integrated Circuits Limited
Transducer for a position sensor
GB2488389C
(en)
2010-12-24
2018-08-22
Cambridge Integrated Circuits Ltd
Position sensing transducer
GB2503006B
(en)
2012-06-13
2017-08-09
Cambridge Integrated Circuits Ltd
Position sensing transducer
JPWO2016027376A1
(en)
*
2014-08-22
2017-06-01
株式会社小松製作所
Hydraulic pump / motor with rotation detection mechanism
FR3077880B1
(en)
*
2018-02-15
2020-01-17
Continental Automotive France
TORQUE SENSOR INTEGRATING AN ANGULAR POSITION SENSOR OF A ROTATING ELEMENT
1972
1972-11-24
GB
GB5430372A
patent/GB1414517A/en
not_active
Expired
1972-11-24
IT
IT32087/72A
patent/IT971206B/en
active
1972-11-27
JP
JP47118815A
patent/JPS4863749A/ja
active
Pending
1972-11-27
US
US00310221A
patent/US3812481A/en
not_active
Expired – Lifetime
1972-11-27
FR
FR7242120A
patent/FR2170406A5/fr
not_active
Expired
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US9945653B2
(en)
2004-12-20
2018-04-17
Mark Anthony Howard
Inductive position sensor
CN108871183A
(en)
*
2018-06-15
2018-11-23
上海卫星工程研究所
A kind of shaft angle monitor device for spacecraft mechanism
CN112740000A
(en)
*
2018-09-21
2021-04-30
蒂森克虏伯普利斯坦股份公司
Inductive angle sensor for a motor vehicle steering system
CN109305561A
(en)
*
2018-10-10
2019-02-05
彩虹（合肥）液晶玻璃有限公司
Synchronizing device, conveying equipment and synchronisation control means
Also Published As
Publication number
Publication date
DE2158713B2
(en)
1973-11-08
DE2158713A1
(en)
1973-06-14
IT971206B
(en)
1974-04-30
US3812481A
(en)
1974-05-21
JPS4863749A
(en)
1973-09-04
FR2170406A5
(en)
1973-09-14
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Legal Events
Date
Code
Title
Description
1976-03-31
PS
Patent sealed [section 19, patents act 1949]
1979-06-20
PCNP
Patent ceased through non-payment of renewal fee
