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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
101	NONCONTACT SPEED DETECTOR	JP18644486	1986-08-08	JPS6342474A	1988-02-23	KANO YOSHIO
PURPOSE:To obtain an inexpensive noncontact speed detector whose structure is simple by moving a yoke which has two permanent magnets long a substrate which has a resistance film and electrodes. CONSTITUTION:The substrate 1 is formed linearly throughout relatively long distance and supported by a support which is not shown in a figure. The resistance film 4 and two electrodes 2 and 3 are formed on this substrate 1. The moving body which slides along the substrate 1 without contact consists of the permanent magnets 5 and 6 and the yoke 7. When this moving body moves above the substrate 1, electromotive force is generated between the two electrodes 2 and 3 and this electromotive force is measured to lead a speed signal out through an amplifier 8.
102		JP6059186	1986-04-22	JPS62173061U	1987-11-04

103	SPEED DETECTOR	JP25943685	1985-11-19	JPS62119461A	1987-05-30	AOYAMA NOBORU
PURPOSE:To detect speed accurately without adverse influence from outside magnetic field, by connecting in series a plurality of dielectric bodies and allowing them the more relatively between the magnetic circuits. CONSTITUTION:The No.1 and No.2 coils 27, 28, upon receiving leakage magnetic flux 31 from an external magnetic field generating unit 22, electric voltages in the same magnitude and of the opposite direction are generated by the flux 31 and the voltages originated from the flux 31 are cancelled and only changes of emfs accompanying displacements related to No.1 and No.2 magnets, 23, 24 are extracted for application to a mixer and for detection of the speeds. Thus, the No.1 and No.2 coils 27, 28 wound, one in the opposite direction to the magnetic circuit, are arranged free to displace simultaneously, and the leakage magnetic flux 31 from the external magnetic field generating unit 22 is blocked securely.
104		JP50017878	1978-12-11	JPS6158865B2	1986-12-13	BESHE RUI

105		JP17355083	1983-11-08	JPS6079162U	1985-06-01

106	Velocity detecting device	JP3498783	1983-03-02	JPS59160767A	1984-09-11	NISHII KANJI; NAKADA AKIFUMI; MIYAZAKI BENICHI
PURPOSE:To prevent generation of mechanical resonance in movable part and to heighten accuracy by conforming the axial direction of a fixed coil with moving direction of an object to be measured and opposing wound face of the fixed coil to the pole of a permanent magnet. CONSTITUTION:A movable york 7 consisting of a magnetic body is provided in a movable body 6 that makes linear movement. A permanent magnet 8 is fixed to the movable body 6 through the movable york 7. A face of a fixed coil 9 opposes to N-pole of the permanent magnet 8, and the axial direction of the coil 9 is so arranged that it coincides with direction of moving of the movable body 6. A fixed york 10 penetrates the coil 9. The moving velocity of the movable body 6 can be detected from the counter electromotive force generated in the coil 9.
107		JP4470281	1981-03-31	JPS57159165U	1982-10-06

108	ELECTRONIC TACHOMETER	JP8269180	1980-06-18	JPS566164A	1981-01-22	ANDORIYU MARUKO ROOZU; JIEIMUSU JIYOSEFU TATSUCHITON

109	SPEED DETECTOR	JP3062979	1979-03-16	JPS55122159A	1980-09-19	FUJIKAWA YOSHITAKA; YOSHIMURA TAKEHIRO
PURPOSE:To accurately detect the speed of a moving object by utilizing an induced voltage obtained by moving a conductor wire in a magnetic field in accordance with the movement of the object. CONSTITUTION:Yokes C1, C2 fixed to a permanent magnet M are opposed to each other at their free end portions such as to form a magnetic gap therebetween. A DC magnetic field H is generated in the magnetic gap, in which the number of magnetic flux is linearly varied with respect to variations in distance in a direction X. A conductor is provided in the magnetic field H such that the conductor is extended at right angles to the direction X. When the conductor is adapted to be moved in the magnetic field H in accordance with the movement of a moving object, the speed V of the object and a voltage Eg induced in the conductor have relation Eg=alphaV. In other words, the speed V is in proportion to the voltage Eg. Therefore, when the conductor or conductors are used as a detector D, the speed of a moving object can be detected by checking a voltage which is in accordance with the speed of the moving body. This detector permits omitting the use of a rotary body, and causes no measurement errors unlike a conventional detector in which measurement errors occur due to a loosened wire. In fact, this detector permits an accurate detection of the speed of moving object.
110		JP13170078	1978-09-27	JPS5549207U	1980-03-31

111		JP10592878	1978-08-01	JPS5522671U	1980-02-14

112		JP50017878	1978-12-11	JPS54500108A	1979-12-27

113	SPEED DETECTOR	JP15079977	1977-12-14	JPS5489676A	1979-07-16	TAKAHASHI KENICHI; FUKUYAMA TATSUO; UENO TAKAFUMI; SHIMADA KOUSHIN; ISHII SHINICHIROU
PURPOSE:To enable the speed of a speed detecting coil to be accurately detected by drawing out the differences in the output voltages of the speed detecting coil and compensating coil in the state where the force coefficient of driving part is made constant. CONSTITUTION:An upper magnetic flux detecting coil 6 and a lower magnetic flux detecting coil 7 which detect the magnetic fluxes passing across the top end face and bottom end face of a speed detecting coil 5 as well as a feedback coil 9 and a compensating coil 10 are provided in the magnetic circuit disposed with the speed detecting coil 5 between a center pole 1 and a plate 3. When force acts upon the speed detecting coil 5, the speed detecting coil 5 is driven axially between the center pole 1 and plate 3, at which time such a current at which the differences in the output voltages of the upper and lower magnetic flux detecting coils 6, 7 become zero is flowed from an amplifier 8 to the feedback coil 9, and the speed of the speed detecting coil 5 may be accurately detected by drawing out the differences in the output voltages of the speed detecting coil 5 and compensating coil 10 in the state where the product of the magnetic flux density B of the speed detecting coil 5 and the coil length l becomes constant.
114		JP80378	1978-01-09	JPS5396012U	1978-08-04

115	SPEED DETECTOR	JP2349676	1976-03-04	JPS52106774A	1977-09-07	KAYANO TAKASHI

116		JP2550774	1974-03-05	JPS50120377A	1975-09-20

117		JP2301474	1974-02-27	JPS50117456A	1975-09-13

118		JP8348572	1972-08-21	JPS4940782A	1974-04-16

119		JP449372	1971-12-28	JPS4880588U	1973-10-02

120		JP8789371	1971-11-02	JPS4853774A	1973-07-28

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