前苏联专利SU1318173A3 Direct current contactless tachometer generator

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专利摘要:
In a D.C. generator type non-contact speed sensing device including a cylindrical permanent magnet rotor (1) with N and S poles alternating around its periphery, a stator (2) with output windings (4) wound thereon confronting the rotor (1), a position-sensing permanent magnet (3) rotating coaxially with the rotor (1), magnetic sensing switches (5) arranged in the vicinity of the periphery of the position-sensing magnet, and the flat portion of a multi-phase A.C. trapezoidal wave form being sampled by the switching operation of the switches (5) in response to the rotating position of the position-sensing magnet (3) so as to produce a D.C. voltage proportional to the rotating speed, the S-pole region and the N-pole region in the position-sensing magnet (3) are continuously formed such that the resultant magnetic field is sharply inverted from one polarity to the other polarity and the ratio of the width of the S-pole region to that of the N-pole region is determined by other than (1) such that the switches (5) samples only the flat-portion of the multi-phase A.C. trapezoidal waveform induced in the output windings, without being influenced by changes in the operational level of the switches, so as to obtain a D.C. voltage with no ripple.
公开号:SU1318173A3
申请号:SU823447950
申请日:1982-05-21
公开日:1987-06-15
发明作者:Коцай Йосинори；Амемийа Йоити；Ивамацу Нобору
申请人:Фудзицу Фанук Лимитед (Фирма)；
IPC主号:

专利说明:

1. 1318173
the invention relates to the electropholes of the smart
cheskimi machines, namely
contactless tachogenerators dc.
The purpose of the invention is to improve the accuracy of determining the measured rotational frequency by increasing the accuracy of determining the position of the rotor-I
FIG. 1 is schematically depicted.
the shape of which has the form shown in FIG. 4 and, consequently, the phase switching zone of the stator winding is reduced. When the rotor rotates, the sensing elements located in the rotor field of the position sensor alternate the signal for turning the stator winding phases on and off. The shape of the output voltage of the tachogenerator (elements of the contactless tachogenerator (Fig. 5) is stable with a constant current; Fig. 2 shows the rotor of the position sensor; Fig. 3 shows the pole tips of the rotor of the tacho generator position with additional permanent magnets; Fig. 4 shows the shape of the induction generated by the rotor of the position sensor; Fig. 5 shows the output waveform of the tachogenerator;
The tacho generator contains a synchronous generator with a stator with a winding 2 and a rotor 3 in the form of a permanent magnet, Coaxially with the rotor 3, a position sensor is installed, containing a rotor 4 made in the form of a permanent magnet 5, and sensitive elements 6 positioned opposite the rotor of the position sensor (
The permanent magnet of the rotor of the position sensor is equipped with pole tips 7 and 8, between which additional permanent magnets 9 are installed, adjacent their poles to the semi-pole tips mounted on the same poles of the position sensor rotor. Fig. 3 shows separately additional permanent magnets for explaining their installation on the rotor of the position sensor.
Due to the fact that the ratio of the width of the pole tips of the soft poles to the pinn of the pole tips of the north poles is equal to 1/3 and due to the installation of additional permanent magnets, the steepness of the magnetic induction front increases,
ter, the magnitude of the signal with a high degree of accuracy corresponds to the magnitude of the measured rotational frequency,
5 Formula of invention
A contactless DC tachogenerator containing a synchronous generator with a cylindrical rotor in the form of a permanent magnet, a stator with a winding located in it, and a rotor position sensor with a rotor mounted coaxially with the generator rotor and sensing elements for detecting changes in magnetic induction located against the rotor position sensor, about tl and 20
25
thirty
So that, in order to increase the accuracy of determining the rotational frequency by improving the accuracy of determining the position of the rotor, the rotor of the position sensor is made at the bottom of a permanent magnet with pole tips, the ratio of the width of the pole tips of the south pole: the width of the pole tips mounted on the North Poles is equal to 1/35 tachogenerator equipped with additional posts40
45
These magnets are located between the pole tips of the adjacent poles, and the poles of the additional permanent magnets are adjacent to the pole tips mounted on the pole with the sensor of the position sensor with them,
the shape of which has the form shown in FIG. 4 and, consequently, the phase switching zone of the stator winding is reduced. When the rotor rotates, the sensing elements located in the rotor field of the position sensor alternate the signal for turning the stator winding phases on and off. The shape of the output voltage of the tachogenerator (Fig. 5) is stable, the magnitude of the signal with a high degree of accuracy corresponds to the magnitude of the measured rotational frequency,
Formula of invention
A contactless DC tachogenerator containing a synchronous generator with a cylindrical rotor in the form of a permanent magnet, a stator with a winding located in it, and a rotor position sensor with a rotor mounted coaxially with the generator rotor and sensing elements for detecting changes in magnetic induction located against the rotor position sensor, about t l and
thirty
So that, in order to increase the accuracy of determining the rotational frequency by improving the accuracy of determining the position of the rotor, the rotor of the position sensor is made at the bottom of a permanent magnet with pole tips, the ratio of the width of the pole tips of the south pole: the width of the pole tips mounted on the North Poles is equal to 1/35 tachogenerator equipped with additional posts40
45
These magnets are located between the pole tips of the adjacent poles, and the poles of the additional permanent magnets are adjacent to the pole tips mounted on the pole with the sensor of the position sensor with them,
fie-3
Editor V.Kovtun
Compiled by V. Komarov Tehred M. Morgental
2442/58
Circulation 776 Subscription
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
Production and printing company, Uzhgorod, st. Project, 4
ff
(jjue.Afie5
Proofreader L. Patay

权利要求:
Claims (1)
[1]
A non-contact direct current tachogenerator containing a synchronous generator with a cylindrical rotor in the form of a permanent magnet, a stator with a winding located in it, and a rotor position sensor with a rotor mounted coaxially with the generator rotor, and sensitive elements for detecting changes in magnetic induction located opposite the sensor rotor position, characterized in that, in order to increase the accuracy of determining the frequency of rotation by increasing the accuracy of determining the position of the rotor, the rotor of the position sensor made in the form of a permanent magnet with pole tips, the ratio of the width of the pole poles installed on the south poles to the width of the pole poles installed on the north poles is 1/3, the tachogenerator is equipped with additional permanent magnets located between the pole tips of adjacent poles, moreover the poles of additional permanent magnets are adjacent to the pole pieces mounted 45 on the poles of the rotor of the position sensor of the same name.

类似技术:

公开号 | 公开日 | 专利标题

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同族专利:

公开号 | 公开日

KR830008176A|1983-11-16|

US4495464A|1985-01-22|

WO1982001074A1|1982-04-01|

EP0059763B1|1987-09-16|

DE3176452D1|1987-10-22|

EP0059763A4|1985-04-11|

JPS6023304B2|1985-06-06|

EP0059763A1|1982-09-15|

JPS5756757A|1982-04-05|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

GB913170A|1959-10-09|1962-12-19|Ferranti Ltd|Improvements relating to direct current tachometer generators|

US3188620A|1961-01-30|1965-06-08|Martin Marietta Corp|Remote motor rotation indicator|

US3447034A|1966-10-24|1969-05-27|Versatek Ind Inc|Automotive overdrive control|

US3548663A|1968-07-31|1970-12-22|Ford Motor Co|Electrical generator including components of an automotive vehicle mechanical speedometer|

FR2038786A5|1969-03-28|1971-01-08|Thomson Csf|

JPS4945882B1|1969-05-15|1974-12-06|

DE2330309C3|1973-06-14|1978-04-13|Siemens Ag, 1000 Berlin Und 8000 Muenchen|Circuit arrangement for speed control of a brushless DC motor|

JPS5046154U|1973-08-24|1975-05-08|

JPS50115073A|1974-02-18|1975-09-09|

JPS5124844U|1974-08-15|1976-02-24|

JPS5928136B2|1975-05-12|1984-07-11|Hitachi Ltd|

SU569948A1|1976-03-22|1977-08-25|Ижевский механический институт|Rotation speed meter|

US4088943A|1977-02-25|1978-05-09|Electro-Craft Corporation|Brushless DC tachometer circuit|

JPS5614951A|1979-07-19|1981-02-13|Fanuc Ltd|Tachometer generator|JPH0435692B2|1982-06-24|1992-06-11|Enplas Corp|

US4562399A|1983-06-14|1985-12-31|Kollmorgen Technologies Corporation|Brushless DC tachometer|

JPS61113576U|1984-12-25|1986-07-18|

JPS6276607U|1985-10-31|1987-05-16|

DE3713305C2|1987-04-18|1991-03-21|Heldt & Rossi Servoelektronik Gmbh, 7302 Ostfildern, De|

DE3834994C2|1988-10-14|1991-04-11|Mtu Friedrichshafen Gmbh|

US5004981A|1988-11-18|1991-04-02|Mitsubishi Jidosha Kogyo Kabushiki Kaisha|Detector device for simultaneously detecting both the direction and number of rotations of rotating member|

FR2648914B1|1989-06-23|1991-09-13|Eaton Sa Monaco|HALL EFFECT ROTATION SENSOR|

WO1999011999A1|1996-03-05|1999-03-11|Harri Saario|Method and apparatus for measuring rotation motion|

DE102007026220B4|2007-06-05|2020-12-10|Austriamicrosystems Ag|Sensor arrangement, measuring system and measuring method|

US9441692B2|2008-03-11|2016-09-13|Honeywell International Inc.|Proximity sensor for brake wear detection|

US9482301B2|2015-03-25|2016-11-01|Honeywell International Inc.|Brake disc stack wear measurement|

JP2018004361A|2016-06-29|2018-01-11|アイシン精機株式会社|Magnetic encoder|

US10471947B1|2018-04-27|2019-11-12|Honeywell International Inc.|Determining estimated remaining use of brake assembly by transceiver|

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

JP55130585A|JPS6023304B2|1980-09-22|1980-09-22|

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