专利检索_...测量所产生的电流或电压辐度专利检索_...测量所产生的电流或电压辐度专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
81	Velocity indication apparatus and magnetic recording apparatus including same	EP81106701.6	1981-08-28	EP0053655B1	1985-02-06	Rohen, James Emery

82	DISPOSITIF POUR MESURER DES PARAMETRES CARACTERISTIQUES DE LA VITESSE D'UNE ECRITURE MANUSCRITE.	EP79900013	1979-07-03	EP0008572A1	1980-03-05	BECHET LOUIS
L'element capteur de ce dispositif comporte au moins deux enroulements de conducteurs electriques (Ex) et (Ey) superposes, situes en-dessous d'une surface d'ecriture. Chacun de ces enroulements presente une portion rectiligne sur au moins une partie de sa longueur. Ils sont disposes de maniere que deux de leurs portions rectilignes respectives se superposent et que les conducteurs de l'une de ces portions soient orthogonaux aux conducteurs de l'autre portion. La zone de recouvrement de ces deux enroulements constitue la superficie dans laquelle l'element capteur du dispositif est capable d'enregistrer aux bornes des deux enroulements (Ex) et (Ey) des tensions (Ux) et (Uy) en fonction des variations de champ magnetique consecutives au deplacement au-dessus de cette zone d'un aimant permanent solidaire de l'instrument d'ecriture. Les signaux issus de ce dispositif peuvent servir a identifier une signature, ou a transmettre des caracteres d'ecriture.
83	SPEED DETECTING DEVICE AND SPEED DETECTING METHOD	EP19176947.0	2019-05-28	EP3584586B1	2022-02-09	FLANKL, Michael; TUEYSUEZ, Arda; KOLAR, Johann W.; TSUKADA, Yusuke; NAKAMURA, Kazuhito

84	DOWNHOLE TURBINE TACHOMETER	EP14881039.3	2014-01-29	EP3099890A1	2016-12-07	DOWNIE, Andrew McPherson
Drilling systems are disclosed that measure the rotational speed of a mud motor. One drilling system includes a mud motor arranged in a drill string and having a turbine shaft operatively coupled to a drill bit and a plurality of turbine stages axially arranged along a portion of the turbine shaft, a measure-while-drilling (MWD) tool operatively and communicably coupled to the mud motor and including a pressure sensor configured to detect pressure pulses generated by the mud motor and generate data signals corresponding to the pressure pulses, an electronics module communicably coupled to the pressure sensor and configured to process the data signals and thereby calculate a rotational speed of the mud motor, and a communications module communicably coupled to the electronics module and configured to transmit signals indicative of the rotational speed of the mud motor to a surface location.
85	PISTON DAMPER ASSEMBLY, AND DUST TUBE SUBASSEMBLY, HAVING A VELOCITY SENSOR	EP03793174.8	2003-08-19	EP1539514B1	2007-11-14	NEHL, Thomas, W.; DENG, Fang
A piston damper assembly (10) includes a piston damper (12) and a relative velocity sensor (14). The piston damper includes a damper body (16), a piston rod (18), and a dust tube (20) which is attached to the piston rod. The relative velocity sensor incudes an axially extending first magnet (24) supported by the dust tube, a flux collector (28), and a first sensor coil (30). The flux collector is supported by the dust tube, includes an axially-extending first prong (34) in axially-extending proximity with the first magnet, includes an axially-extending second prong (36), and includes a joining member (38) connecting the first and second prongs. The first sensor coil surrounds the joining member and/or one of the first and second prongs. A piston-damper dust tube subassembly (42) includes the dust tube and the relative velocity sensor.
86	Sensor in einem Schwingungsdämpfer für Kraftfahrzeuge	EP92112069.7	1992-07-15	EP0530475B1	1997-10-01	Gesenhues, Ludger, Dipl.-Ing.; Hölscher, Reinhard, Dr.-Ing.; Hoffmann, Hans-Jürgen; Huang, Zhen, Dr.-Ing.; Schmidt, Klaus, Dipl.-Ing.

87	Velocity transducer for vehicle suspension system	EP90312069.9	1990-11-02	EP0428307B1	1994-10-19	Wolfe, Paul T.; Jolly, Mark R.

88	Speed detecting device	EP86309056.9	1986-11-19	EP0224377A3	1989-02-15	Aoyama, Noboru
A speed detecting device for detecting the speed of movement of a pick-up is disclosed. The device incorporates a plurality of coils (27, 28) and a magnetic circuit arrangement. The magnetic circuit arrangement may be of various forms but includes gaps in which lines of flux exist and through which the coils pass on movement of the pick-up (1). Crossing the lines of flux by the coils generates in each coil an electric signal representative of the speed of relative movement between the coils and the magnetic circuit arrangement and the coils are arranged such that an extraneous magnetic field passing through the coils will produce an error signed with an electrical sense relative to the speed detecting signal in one coil which is opposite to that produced in the other coil or in other coils. Embodiments of the magnetic circuit arrangement are disclosed comprising first and second magnetic circuit members (20, 21) and permanent magnets (23, 24). The coils may be positioned over the magnets or over portions of the magnetic circuit spaced from the magnets. Movement of the pick-up may result in movement of the coils or of the magnetic circuit arrangement.
89	Detection signal processing circuit and detection signal processing device for rotation sensor	JP2004057908	2004-03-02	JP2005249488A	2005-09-15	OKADA HIROSHI; SUGIKI MIKIO; MAKINO YASUAKI
<P>PROBLEM TO BE SOLVED: To provide a detection signal processing circuit and detection signal processing device for rotation sensors enabling to output detection signals indicating a rotation direction and number of revolutions only providing three wires and to reduce power consumption thereof. <P>SOLUTION: In a detection signal processing circuit 10 which is provided to face a body of revolution, and detects a rotation direction and number of revolutions of the body of revolution based on detection signals which are output from 2 sensor elements with different phases, the rotation direction is output by short-circuiting a constant current Ib from a current generator 26 and a potential supplied to a switch 2. Therefore, the rotation direction and number of revolutions of a gear (body of revolution) 50 can be output with three wires, i.e. a power supply line 42, a signal line 44 for output pulses cased by rotation of the gear 50, and a grounding wire 46. In addition, since the voltage is adjusted at 1 level, power consumption can reduced in comparison with methods in which voltage is adjusted at two levels. <P>COPYRIGHT: (C)2005,JPO&NCIPI
90	Speed detecting device	JP7457592	1992-03-30	JP3488253B2	2004-01-19	滋明和智

91		JP32694891	1991-11-15	JP2699737B2	1998-01-19

92		JP32694791	1991-11-15	JP2699736B2	1998-01-19

93		JP11450588	1988-08-31	JPH0727825Y2	1995-06-21

94		JP15969189	1989-06-23	JPH0625773B2	1994-04-06	FUJIWARA MASAHARU; ARIZONO YUKIMICHI; EBINA TOORU; OKAMOTO AKIHIRO; IMADA MICHINOBU; AKAMATSU TOSHUKI; MASUDA YOSHINORI

95		JP18644486	1986-08-08	JPH0566986B2	1993-09-22	KANO YOSHIO

96	SPEED DETECTION CIRCUIT	JP13777291	1991-06-10	JPH04364392A	1992-12-16	TAKAHASHI HIDEKI
PURPOSE:To detect a speed of an optical head without adverse influence to a vibrating characteristic by using a driving coil of a linear motor. CONSTITUTION:In a linear motor 31 having a driving coil 13 movable relatively to a magnetic member 31a in a direction crossing a magnetic flux generated by the member 31a, a relative speed of the coil 13 and the member 31a, i.e., a moving speed of an optical head 3 by the motor 31, is detected by utilizing an electrical change in the coil 13 generated at a moment of crossing the magnetic flux by the coil 13.
97	SENSOR FOR MEASURING RELATIVE SPEED AND RELATIVE POSITION BETWEEN BUFFERING CYLINDER AND BUFFERING PISTON MOVED WITHIN SAID BUFFERING CYLINDER	JP29545691	1991-11-12	JPH04266633A	1992-09-22	HUANG ZHEN DIPL ING; GESENHUES LUDGER DIPL ING; HOFFMANN HANS-JUERGEN; SCHMIDT KLAUS DIPL ING; HOELSCHER REINHARD DR ING; KRUENER THOMAS
PURPOSE: To provide a sensor for automotive shock absorbers as well as for spring legs, capable of measuring not only the relative speeds of a vehicle upper structure and an axle but also the terminal position of push-in/push-out stroke. CONSTITUTION: A sensor winding 9 is so formed that additional connecting terminals 13, 14 for short winding portions 7, 8 are independently guided outward in front of the ends of the sensor winding 9.
98		JP19967984	1984-09-26	JPH0437953B2	1992-06-22	YOHAN KURISUTEIAN FUREMERAI; BERUNTO RINDENAU

99	VELOCITY SENSOR DEVICE	JP12358190	1990-05-14	JPH0419564A	1992-01-23	KANO YOSHIO
PURPOSE:To continuously detect and output the velocity of moving object in non-contact, to reduce the accident damaging a band-shaped resistance body, and to attain an increase of durability by the fact that a specified electromotive force is generated between mutual electrodes in the orthogonally crossed direction to the moving direction of the moving object on the band-shaped resistance body when the mobile object is moved along the band-shaped resistance body. CONSTITUTION:The value of movement velocity of the moving object M can be continuously detected in non-contact and outputted. Since a movable yoke 2 is arranged at the position confronted with one side face of a fixing pedestal 1, the yoke 2 can be miniaturized and an entire face of another side of a resistance film 4 is fixed with a circuit board 3, and also since the entire face of another side of the board 3 is fixed on the pedestal 1, the exposed area of resistance film 4 is decreased. Consequently, the durability of resistance film 4 and board 3 can be increased, and also the resistance film 4 and output electrodes 5, 6 are effectively protected by an insulation film 7.
100	MEASURING INSTRUMENT FOR MOVING SPEED OF MOVING BODY	JP15969189	1989-06-23	JPH0325372A	1991-02-04	FUJIWARA MASAHARU; ARIZONO YUKIMICHI; EBINA TORU; OKAMOTO AKIHIRO; IMADA MICHINOBU; AKAMATSU TOSHIYUKI; MASUDA YOSHINORI
PURPOSE:To continuously use the instrument and to simplify its structure by detecting the moving speed of the moving body by a electromagnetic induction type noncontact sensor which operates according to the magnetic flux of magnets fitted on the moving body. CONSTITUTION:Magnets 9 and 10 which produce radial magnetic fields crossing the moving direction of the moving body 1 are incorporated in the moving body 1. Further, a couple of electromagnetic induction type noncontact sensors 8 which generate induced voltages corresponding to the variation rates of the magnetic flux of the magnets are arranged opposite each other on both sides of a passage where the moving body 1 moves. Then the voltages outputted by the sensors 8 are added and inputted to a data processor 15, which performs specific processing to calculate the moving speed of the moving body 1.

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