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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
141		JP51169694	1993-11-09	JPH07506754A	1995-07-27
PCT No. PCT/EP93/03126 Sec. 371 Date Jul. 15, 1994 Sec. 102(e) Date Jul. 15, 1994 PCT Filed Nov. 9, 1993 PCT Pub. No. WO94/11062 PCT Pub. Date May 26, 1994A device for influencing localized low-frequency electric and magnetic fields which act on a conductive structure located within a delimited space, in particular an organic substance such as a living organism, compensates the localized fields by the establishment of an interference field. With such an interference field it is possible to eliminate the disruptive influence of localized fields as well as to provide a possibility for imposing a desired influence.
142	EQUIPMENT AND METHOD FOR MEASURING RESIDUAL MAGNETIC FIELD OF STRATUM	JP19755494	1994-07-29	JPH0777581A	1995-03-20	JIYATSUKU POKASHIYAARU; BUERONIKU BARUTO
PURPOSE: To quickly judge the causes of attenuation of compound R1 of residual magnetic field, which may be fluctuation of magnetic polarity, decrease of residual magnetization, or by others, by employing a second magnetometer to measure the algebraic sum of the geomagnetic field, the residual magnetic field, and a magnetic field of magnetic susceptibility projected in the different directions from the direction of the geomagnetic field. CONSTITUTION: The algebraic sum of a magnetic field B, the projection component I1 of a magnetic field I of a magnetic susceptibility, and the projection component R1 of the residual magnetic field by a scalar magnetometer 7. The magnetic filed I is at an angle α to the b-axis. Meanwhile, a uniaxial direction magnetometer 8 directly measures the algebraic sum of the projection components (Bp , Lp , R3 ) of the magnetic field B, I, R. A uniaxial direction magnetometer 8' measures the difference. The angle D between the axis b and the axis z is equal to the value of cos[(Bp +Ip + R3 )/(B+I1 +R1 )]. Since the magnetic field B can be measured by a magnetometer 5 and the magnetic field I can be measured by a magnetic susceptibility sensor 11, the component I1 is computed by the axis b and the angle α, the component R1 by subduction, the Ip , Bp by the angle D and the magnetic field I, and finally the component S is computed based on S=(R3 -R1 cosD)/sin D.
143	DC-SQUID FLUXMETER	JP7373793	1993-03-31	JPH06289109A	1994-10-18	YAMADA YASUHARU; SHINADA MEGUMI
PURPOSE:To provide a DC-SQUID fluxmeter which dispenses with superconductive magnetic shield over a SQUID element, and does not cause an interference among pickup coils even in the case where the fluxmeter is multichanneled. CONSTITUTION:Input coils 2a, 2b are severally coupled with the each superconductive loop of a differential type DC-SQUID ring 1 having even numbers of superconductive loops 11a, 11b and two spots of Josephson junction parts 12a, 12b, and one superconductive closed loop is formed of each input coil and one pickup coil 3, and a feedback signal fed from a magnetic flux locking circuit 5 is supplied in a differential mode through even numbers of feedback coils 4a, 4b coupled with the superconductive closed loop.
144	ALTERNATING FIELD MEASURING DEVICE AND METHOD	JP32750492	1992-11-13	JPH06148300A	1994-05-27	YASUI YOSHICHIKA; HENMI HIDEYO
PURPOSE:To measure a low magnetic field with high accuracy under environment receiving the effect of large electromagnetic noise and to also measure the alternating field of a high frequency area. CONSTITUTION:A magnetic field sensor 14 using a Hall element is arranged in an alternating field and a Hall current is allowed to flow to the Hall element to output a voltage waveform which is, in turn, stored in a waveform memory device 10. Next, the voltage waveform outputted from the Hall element in such a state that no Ball current flows is stored. A time base is set so that the phases of cyclical noises contained in two voltage waveforms coincide and the difference between the voltage values of two waveforms is operated in a time series by a CPU 4. The voltage waveform obtained by operation contains no noise component and becomes the effective component corresponding to a magnetic field to be measured.
145	DEVICE FOR ELIMINATING MAGNETIC NOISE USING SQUID	JP13717591	1991-05-13	JPH04357481A	1992-12-10	MATSUMOTO KAZUTAKE; OKESAWA ATSUSHI; FUJIOKA KOJI
PURPOSE:To enable a noise-elimination space which can cancel an environmental magnetic noise which obstructs a living organism magnetic measurement, etc., with a high magnetic damping factor particularly at a low-frequency area to be formed. CONSTITUTION:A title item consists of a SQUID flux meter 1 and a pair of noise-cancellation coils 2 as a minimum unit and a feedback current I which is output from the SQUID flux meter 1 is supplied to the noise-cancellation coils 2. A flux detection coil 3 of the squid flux meter 1 is placed at a specific space portion such as a center space portion 4 of the noise cancellation coils 2, thus enabling the specific space portion to be used as a magnetic noise- elimination space.
146	HIGHLY SENSITIVE DETECTOR OF MAGNETIC FIELD	JP3635691	1991-03-01	JPH04274781A	1992-09-30	CHIBA TOKUO; SHIMIZU NOBUHIRO; NAKAYAMA SATORU
PURPOSE:To prevent transmission of high-frequency noise to SQUID from outside. CONSTITUTION:An electromagnetic wave shielding film 3 is disposed on a primary coil 1 so that it covers the whole of the primary coil, and further a secondary coil is disposed on the electromagnetic wave shielding film 3. The electromagnetic wave shielding film 3 is connected to the ground. The primary coil 1 and the secondary coil 2 are formed of superconducting thin films, while the electromagnetic wave shielding film 3 is formed of a thin film having excellent conductivity. High-frequency noise falling on the secondary coil side from outside is can be led to the ground by the electromagnetic wave shielding film 3 formed between the primary coil 1 and the secondary coil 2 and the noise is not transmitted to SQUID 4 on the primary coil side. Therefore, the sensitivity can be improved.
147	MAGNETIC FIELD MEASURING DEVICE	JP3282489	1989-02-14	JPH02212788A	1990-08-23	HAYASHI OSAMU; IGARASHI HIROSHI; HAYASHI TAKEHIKO
PURPOSE:To remove a noise component to reduce the time for needing regulation by providing three compensation magnetic field coils set so that magnetism is crossed for either of them. CONSTITUTION:Compensation picking-up coils 11, 12, 13 are provided in the center part of a cylindrical coil in which a uniform magnetic field H exists. Since the direction of the uniform magnetic field H is in parallel with the axis of the cylindrical coil, the axial direction of the coil is changed, so that an alternating current uniform magnetic field is added to three orthogonal axes of an X axis, a Y axis and a Z axis successively to measure the maximum value of alternating output V1X, V1Y, V1Z, V2X, V2Y, V2Z, V3X, V3Y, V3Z, V0X, V0Y, V0Z, V0Z and V0Z of magnetic field measuring devices 21, 22, 23 for each direction to calculate gain values b1, b2, b3 to set the gain of each variable gain device at these values respectively so as to obtain signals in which noise components by the uniform magnetic field are removed.
148		JP18684180	1980-12-26	JPH0125430B2	1989-05-17	KURIHARA KATSUMITSU; SUZUKI TOSHASU; HOSONO GENZO

149	MAGNETIC FIELD DETECTION LOOP	JP20330387	1987-08-14	JPS6446666A	1989-02-21	ITO KEIICHIRO; MIKAZUKI TETSUO; KOSHIMOTO YASUHIRO
PURPOSE:To remove noise due to an externals magnetic field and to obtain high detection resolution by forming a magnetic detection loop in an H shape, forming two very close loops which are in the same shape, and processing the loop outputs of two couples differentially. CONSTITUTION:The loops (a) and (b) in the H shape share a path 5-6, and are made axially symmetrical about the path 5-6 so that the parts surrounded with the loops (a) and (b) are equal in area. Electromotive forces generated between terminals 1 and 2, and 4 and 3 are proportional t the time differentiation of magnetic flux phia and magnetic flux phib, so a magnetic field distribution which is proportional to the amplitude of the magnetic flux difference phia-phib is found from the difference output voltage between the loops (a) and (b). Electromotive forces due to an external magnetic field which causes noise are induced at the loops (a) and (b) in phase having the same amplitude and they are processed differentially to cancel a noise component. Thus, the high detection resolution is obtained.
150	SUPERCONDUCTING GRADIENT MEASURING DEVICE	JP20962184	1984-10-05	JPS60133377A	1985-07-16	BURAIAN ROBAATO BAANAADO

151	CORRECTING METHOD FOR VEHICLE MOUNTED GEOMAGNETISM SENSOR	JP10304683	1983-06-09	JPS59228112A	1984-12-21	OKADA YASUSHI
PURPOSE:To remove errors, by matching a specified shifting amount determined by magnetic anisotropy with the offset amount caused by magnetization, and performing correction. CONSTITUTION:In a vector locus 6, Xmax, Xmin, Ymax, and Ymin are obtained. Then, a point (X0, Y0) is obtained by expressions X0=1/2(Xmax+Xmin)+Xs and Y0=1/2(Ymax+Ymin)+Ys. Shifting is performed so that this point becomes the original point of XY coordinates, and correction is performed. In the expressions, the terms of 1/2(Xmax+Xmin) and 1/2(Ymax+Ymin) are the terms for correcting the offset caused by the magnetization of a vehicle body. Xs and Ys are the terms for correcting the error based on anisotropy of geomagnetism.
152	VEHICLE MOUNTED GEOMAGNETISM SENSOR	JP10304483	1983-06-09	JPS59228110A	1984-12-21	OKADA YASUSHI
PURPOSE:To perform accurate correction, by providing the second geomagnetism sensor, which corrects the output of a geomagnetism sensor, which is provided at an ordinary position, at a place where the effect of magnetization from a railroad crossing is strong. CONSTITUTION:A geomagnetism sensor 3 is provided at a part D of the body of a vehicle, e.g., a roof, where the effect of the magnetization from a railroad crossing is small. With this sensor as the first geomagnetism sensor, geomagnetism is measured. A second geomagnetism sensor 4 is provided at a part of the body, where the effect of the magnetization from the railroad crossing is strong, e.g., a floor 1a of the body and the like. Based on the detected outputs of the geomagnetism sensors 3 and 4, the amount of the magnetization of the body is obtained based on the difference, and the detected output of the first geomagnetism sensor 3 is corrected.
153	Magnetic field compensator	JP1832283	1983-02-07	JPS59143975A	1984-08-17	MORIMOTO SHIGEKI
PURPOSE:To obtain a magnetic field compensator which won't affect the magnetic environment other than an expected magnetic compensation by differentially utilizing a DC magnetic field generated with a coil. CONSTITUTION:Coils 3a and 3b are arranged on the straight line squarely crossing the vertical line passing the center of a measuring space 4 below the center of the measuring space 4 at the equal distance therefrom to generate a upward vertical magnetic field while coils 3c and 3d are mounted in symmetry with the coils 3a and 3d with the measuring space between the two arrays of coils. At the point in the level plane passing the center of the measuring space 4, a composite magnetic field of a DC magnetic field generated with the coils 3a-3d is zero. This not only eliminates effect on the uniformity of the horizontal magnetic field but also enables the compensation for the vertical magnetic field without changing the intensity of magnetism in the measuring space 4.
154	Magnetic field compensator	JP8288382	1982-05-17	JPS58200174A	1983-11-21	MORIMOTO SHIGEKI
PURPOSE:To enable the selection of a test site as desired with a simple generation of various correction magnetic fields by varying the arrangement and current value of a coil. CONSTITUTION:Coils 3a-3d are positioned at equal distances from the center of a test space 4 on a circle centered on the vertical line 5 passing the center thereof to generate a vertical magnetic field. The difference between intensities H1 and H2 of the magnetic field with the coils respectively at points P1 and P2 can be changed by varying the ratio between the distance (r) and the vertical distance L from the center of the test space and the magnetic moment M. Therefore, when the magnetic field is different at the points P1 and P2, a magnetic field is applied with a coil 3 in such a manner as to be uneven with an opposite characteristic corresponding to difference in the unevenness of the magnetic field thereby enabling the correction of the unevenness of the magnetic field.
155	DISTURBANCE PREVENTING METHOD FOR EARTH MAGNETIC SENSOR	JP18683980	1980-12-26	JPS57108763A	1982-07-06	SUZUKI TOSHIYASU; KURIHARA KATSUMITSU; OZAWA KAZUHIRO
PURPOSE:To avoid an effect to an earth magnetic sensor of an azimuth meter when a current flows to a harness, by changing the single-wire wiring using the earth of a car body to the double-wire wiring and at the same time putting the plus side harness and the munus side harness close to each other to carry out a process of wiring. CONSTITUTION:The single-wire system using the earth of a car body is changed to the double-wire system for the power supply wiring of various electric parts. At the same time, the harnesses 4 connected to a lamp 3 from a battery 2 via a switch SW are put together to form a parallel wiring. This prevents the harness 4 from forming a loop. As a result, no magnetic field is caused by a closed loop when each of electric parts is operating to give no effect to an earth magnetic sensor of an azimuth meter mounted to a car. Thus an accurate azimuth is detected.
156	MAGNETIC FIELD DETECTOR	JP8658880	1980-06-27	JPS5713378A	1982-01-23	NOZAKI WATARU
PURPOSE:To enable the reduction of noise and error produced due to electromagnetic induction with an outer magnetic field, by a method wherein an outgoing conductor part, ranging from a magnetic resistance effect element to a measuring device, is connected in a manner to form 2 loops being in the reverse direction to each other. CONSTITUTION:If only a first conductor 7 and a second conductor 3 are connected to a first terminal 4 and a second terminal 5, respectively, noise is produced due to electromagnetic induction when a loop, formed with the conductors, is interlinked with an outside alternating magnetic field. Therefore, a third terminal 6, being placed, is connected directly to the second terminal 5, a third conductor 9 is connected to the third terminal 6, and the conductors are located such that a loop, formed by the first and second conductors, and a loop, formed by the first and third conductors, equalize in the area. Through the passge of the outside alternating magnetic field through the two loops formed by the 3 conductors, noise is produced in the two loops, but the noise is eliminated because of the mutual absorption.
157	ANGLE SENSOR	JP13960278	1978-11-10	JPS5565165A	1980-05-16	ITOU HISATSUGU
PURPOSE:To eliminate the effect of internal error magnetic field with a simple constitution, by flowing compensated current to the output winding of the modulation type magnetic sensor. CONSTITUTION:The internal error magnetic field Ho is cancelled by flowing the DC currents Ix and Iy to the output terminals 12aX and 12aY of the modulation type magnetic sensors 10X and 10Y via the resistors 60X and 60Y from the variable power supplies 50X and 50Y. Other than the angle sensor using ring shaped core, the internal error magnetic field can be cancelled to the circular shape core similarly.
158		JP8228871	1971-10-18	JPS547205B2	1979-04-05

159		JP13062673	1973-11-20	JPS5335742B2	1978-09-28

160		JP7565772	1972-07-27	JPS5226475B2	1977-07-14

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