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JP2573667B2 |
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JPH0921605A |
To eliminate the need for mounting a constructional machine physi cally accurately on the turning center axis and easily mount the machine in the vicinity of the turning center where a mounting position is restricted much, by detecting a...
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JP2571364B2 |
A flux gate sensor having sense windings for providing an output proportional to the strength of an external magnetic field in which the sensor is placed. A gating circuit which is responsive to a pulse which is generated when the core o...
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JPH095083A |
PURPOSE: To provide an inexpensive geomagnetic sensor and a manufacturing method for it in which deterioration in magnetic characteristic in a magnetic core is prevented and excellent direction detecting precision is provided. CONSTITUTI...
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JPH095084A |
PURPOSE: To provide a magnetic sensor by which a magnetic field can be precisely detected with high sensitivity. CONSTITUTION: The magnetic sensor detecting an external magnetic field HEXT on the basis of variation in an inductance of an...
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JP2569692B2 |
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JP2568988B2 |
The invention provides a direction sensor and a method of calibrating a direction sensor having a relative heading sensor and an absolute heading sensor. The method allows calibration of both the relative heading sensor and the absolute ...
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JP2566642B2 |
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JP2566295B2 |
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JPH08338863A |
PURPOSE: To obtain a magnetic detector in which reluctance elements can be arranged accurately. CONSTITUTION: The magnetic detector comprises a magnetic detector body 10 having a resin case 1 provided with a recess 1a and a board 2 to be...
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JPH08334328A |
To obtain a compass system having a function for compensating an abrupt and significant variation in the magnetism of a vehicle and for recovering therefrom by mounting a field sensor including a compensation means in the vehicle in orde...
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JPH08335030A |
PURPOSE: To perform observation in an optional position, on an optional date and at an optional time, and assume the sunrise and sunset positions including the solar route and local time on an optional date from that position. CONSTITUTI...
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JPH08327359A |
PURPOSE: To enhance the measuring accuracy of a terrestrial magnetism azimuth sensor that detects an azimuth of terrestrial magnetism by using a magnetoresistance element consisting of a magnetoresistance film which is patterned so as to...
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JPH08320236A |
PURPOSE: To provide an azimuth detecting device that can detect azimuth with high accuracy regardless of the moving state of a moving body and disturbance. CONSTITUTION: In an azimuth detecting device for detecting the proceeding azimuth...
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JPH08313260A |
PURPOSE: To detect a disturbance magnetic field by grasping a magnetic field in a three-dimensional fashion with respect to a terrestrial magnetism and to cancel azimuthal data obtained by a terrestrial magnetism sensor when the disturba...
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JP2552182B2 |
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JP2550216B2 |
An output signal processing unit of a fluxgate sensor including a fluxgate (1) for detecting the magnetic north of a vehicle and a low pass filter (2) for removing a high frequency component from an output of the fluxgate sensor (1), is ...
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JPH08292030A |
PURPOSE: To detect magnetized vector without moving a movable body detecting azimuth so as to correct it by obtaining magnetized component from geomagnetism component eliminating the effect of magnetism of a movable body and geomagnetism...
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JPH08285602A |
PURPOSE: To increase the accuracy of calculated speed of an inclined bearing angle by obtaining, by a gravity converting formula, a rotating angle to a position where the maximum inclined angle of an inclined surface is crossed at right ...
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JP2549283B2 |
A method and apparatus for providing a magnetic compass, and system to accurately calibrate the compass with a rotation of the vessel on which the compass is mounted through a single rotation of 360 degrees. The compass comprises gimball...
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JPH08282190A |
PURPOSE: To provide a portable writing underlay board, the thickness of which can be made thinner than ever, further, which has a very simple structure and can be provided at low cost, with an azimuth magnet. CONSTITUTION: In the portabl...
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JPH08278139A |
PURPOSE: To provide a bearing output device capable of representing a true bearing and eliminate a need for a surveying person to correct a magnetic bearing for finding the true bearing. CONSTITUTION: An electronic compass is made of ear...
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JPH08278137A |
PURPOSE: To provide a bearing output device capable of finding a direction free from an error due to inclination, even when the device is not in a horizontal state, and further provide such a device capable of showing a true bearing. CON...
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JPH08510060A |
A magnetic field sensor includes a number of magnetoresistive sensor elements situated in one plane, and which have the same privileged directions of magnetization, and a magnetization coil connected to a current pulse generator which al...
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JP2543050B2 |
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JP2542050B2 |
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JP2538738B2 |
PURPOSE: To make it possible to obtain highly-precise center coordinates of a sensor output and, in addition, to dispense with one-circle running for correction in an azimuth meter for a vehicle using a geomagnetic azimuth sensor. CONSTI...
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JPH08254427A |
PURPOSE: To provide a wristwatch with an electronic azimuth indicator that is able to indicate a highly accurate azimuth indication. CONSTITUTION: In a wristwatch with an electronic azimuth indicator, being equipped with a geomagnetic se...
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JPH08247759A |
PURPOSE: To miniaturize an azimuth indicating device and reduce its weight and constantly and accurately indicate azimuth by calculating the azimuth of an object based on the direction of a detected object and the position information at...
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JP2535503B2 |
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JPH08240670A |
To provide a watch which can indicate the direction of a position decided from a plurality of prescribed geographical regions. A watch is provided with devices 28, 40 which detect the magnetic north of the earth and with means 22, 46, 14...
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JPH08233927A |
PURPOSE: To provide a thin film flux gate magnetic sensor which can measure the magnetic field in a normal direction to a board. CONSTITUTION: If the external magnetic field in a normal direction to a board 1 does not exist when a curren...
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JPH08233576A |
PURPOSE: To produce a metallic master disk with high yield and reliability by reducing processing cost and improving installation environment, equipment area and cycle time in the production process for disks. CONSTITUTION: First magneti...
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JP2531194B2 |
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JPH08219791A |
PURPOSE: To provide a buoyancy type magnetic bearing detecting element in which the dispersion of liquid quantity to be filled is suppressed and which satisfies a predetermined oblique correction angle. CONSTITUTION: Marking lines 9a, 9b...
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JP2526346B2 |
PURPOSE: To determine the azimuth of a moving body on the basis of output data from one magnetism detecting means. CONSTITUTION: Output value data of a magnetism detecting means including a magnetism detecting coil which is mounted on a ...
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JP2524455B2 |
PURPOSE: To obtain a method and an apparatus wherein the posture of a structure such as a sinker as an anchor installed in the water or an anchor made of iron is measured. CONSTITUTION: A direction meter 10 which detects the direction of...
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JP2524161B2 |
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JPH08201061A |
PURPOSE: To obtain a magnetic sensor in which the sized, weight and cost are reduced while keeping the advantages of conventional flux gate sensor as they are. CONSTITUTION: Two thin film coils 12a, 12b are formed of a low resistance mat...
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JPH08201059A |
PURPOSE: To detect the azimuth correctly even in a place where the field is disturbed instantaneously by an arrangement wherein a turning correction means extracts such X and Y signals as a rectangle touching the inner circle of an azimu...
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JPH08201060A |
PURPOSE: To enhance accuracy and reliability in the measurement by detecting the geomagnetic azimuth angle in one arbitrary direction based on the phase angle of a rotating field where the strength of combined field of rotating field and...
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JP2520952B2 |
A geomagnetic sensor sequentially acquires measurement data representing the components of the Earth's magnetic field around the vehicle in two mutually perpendicular directions in a horizontal plane. The vehicle direction is determined ...
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JP2518024B2 |
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JPH08184657A |
PURPOSE: To obtain a small-sized inexpensive geomagnetic sensor having very high sensitivity to external field in which the variation of impedance can be utilized effectively. CONSTITUTION: A pair of magnetic sensors, each comprising a s...
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JPH08178663A |
PURPOSE: To quickly and precisely measure the characteristic of a geomagnetic azimuth sensor by providing a driving means (motor) for rotating the geomagnetic azimuth sensor and a rotating angle detecting means (rotary encoder). CONSTITU...
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JPH08178662A |
To provide a magnetic compass for measuring the geomagnetic field through simple structure. The magnetic compass comprises two or more Hall effect sensors 1, 2 spaced apart from each other while having an output terminal connectible with...
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JPH08178661A |
PURPOSE: To precisely detect the absolute azimuth with a moving body by receiving the radio wave emitted from a geostationary satellite. CONSTITUTION: A broadcasting satellite or communication satellite can be used as the geostationary s...
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JP2514254B2 |
A system measures a traveling direction of a vehicle based on a direction toward a coordinate position defined by output data from a geomagnetic direction sensor from a first center coordinate position of a corresponding output circle. T...
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JPH08159771A |
PURPOSE: To improve the economic efficiency of an azimuth instrument with a simple constitution by arranging a plurality of magnetoelectric transducing elements at the different specified angles with respect to the center, respectively, ...
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JP2505795B2 |
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