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1. 发明专利

JPH04151594A TEMPERATURE CORRECTION DEVICE 失效
公开(公告)号：JPH04151594A
公开(公告)日：1992-05-25
申请号：JP27319890
申请日：1990-10-15
申请人： JAPAN TECH RES & DEV INST , MITSUBISHI PRECISION CO LTD
发明人： MATSUMOTO SHINSUKE , TAKAGI HIROSHI , HAYAKAWA YOSHIAKI
IPC分类号： G12B7/00 , G12B17/06
摘要： PURPOSE:To shorten preparation time by containing instruments and the like affected by temperature in a container thermally insulating from the surroundings and correcting them. CONSTITUTION:An instrument 1 is contained in a container 4 to thermally insulate from the surroundings 8. Therefore, the heat accompanied only by the operation of the instrument 1 is considered. The instrument 1 before the operation should be at temperature theta0 the same as the surroundings 8, and the instrument after operation start generates heat to raise the temperature. The generated heat is defined as P, the heat capacity of the instrument 1 and its support 2, C and the time, t, then the temperature theta0 rises from the initial temperature theta0 following the equation theta=theta0+(P/C).t. Though the deviation from the equation will increase as the state approaches to the saturation, a certain range can be approximated by the equation. Furthermore, no irregular heat conduction exists on the surface of the instrument, and so a constant relation stands between the measured result of the instrument 1 and the temperature. Thus, exact correction of the measured result with a correction part 6 based on the detected temperature with a temperature detector 5 is possible immediately after the operation starts.

2. 发明专利

JPH04151504A DETECTING DEVICE FOR RELATIVE ANGLE 失效
公开(公告)号：JPH04151504A
公开(公告)日：1992-05-25
申请号：JP27319990
申请日：1990-10-15
申请人： JAPAN TECH RES & DEV INST , MITSUBISHI PRECISION CO LTD
发明人： MATSUMOTO SHINSUKE , TAKAGI HIROSHI
IPC分类号： G01B11/26
摘要： PURPOSE:To conduct regulation only by a part on one side and thereby to simplify the regulation by a method wherein a parallel light flux emitted from a light source is made to fall at a large incident angle on the light-sensing surfaces of photoelectric detecting elements located inside the light flux. CONSTITUTION:A parallel light flux 4 is emitted from a light source 3 fixed on a first reference part 1, while a photoelectric detector 5 made up of photoelectric detecting elements 51 and 52 is fixed on a second reference part 2. The light flux 4 falls on the elements 51 and 52 at a large incident angle. An angle formed by a light-sensing surface and the incident light flux is denoted by alpha and the angle alpha is set at an appropriate value. When alpha is changed in a minute amount in the vicinity of the value, an output of the detector 5 changes. By detecting the change in the output of the detector 5, accordingly, a change in a relative angle is determined. When alpha is set at the appropriate value, the change in the angle in the vicinity thereof is proportional to a difference between outputs of the two elements 51 and 52. When the value of alpha is small and approximate to zero, therefore, the sensitivity is increased and, besides, the output itself turns small. The precision in detection is improved consequently. As stated above, it is needed only to emit the light flux 4 toward the part 2, and regulation can be executed only by the part 2.

3. 发明专利

JP2004157134A Relative angle detector, and system for providing virtual reality feeling 有权
公开(公告)号：JP2004157134A
公开(公告)日：2004-06-03
申请号：JP2004009270
申请日：2004-01-16
申请人： Mitsubishi Precision Co Ltd , 三菱プレシジョン株式会社
发明人： TAKAGI HIROSHI
IPC分类号： A63F13/00 , A61H1/02 , G01B11/26 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To provide a small and light-weighted relative angle detector having a wide detection range, and a virtual reality feeling providing system using the detector. SOLUTION: This relative angle detector for detecting a rotational angle with respect to a prescribed initial direction within a prescribed plane of a unit is provided with a light source part 210 provided separately from the unit to emit polarized light of which the polarization direction is varied with a prescribed period along a direction substantially vertical to the prescribed plane, a photoreception unit 221 provided with a polarization filter 223 for receiving the light emitted from the light source part 210 provided integrally with the unit, and an optical detecting element 224 for detecting the light transmitted through the polarization filter, and a calculating means 55 for calculating the relative angle of the unit with respect to the prescribed initial direction, based on the polarization direction of the light emitted from the light source part 210 at the time point when a signal output from the optical detecting element 224 comes to a prescribed value. COPYRIGHT: (C)2004,JPO

4. 发明专利

JPH11183120A DEVICE FOR DETECTING LOCATION AND DEVICE FOR PROVIDING SENSE OF VIRTUAL REALITY 失效
公开(公告)号：JPH11183120A
公开(公告)日：1999-07-09
申请号：JP35339197
申请日：1997-12-22
申请人： MITSUBISHI PRECISION CO LTD
发明人： TAKAGI HIROSHI
IPC分类号： G09B9/02 , A63B23/00 , A63F13/213 , A63F13/25 , A63F13/42 , A63F13/525 , G01B11/00
摘要： PROBLEM TO BE SOLVED: To obtain a location detecting device at low cost in a simple structure by calculating the location of a unit from the location of the image of a point light source outputted by a light receiving unit and corrected on the basis of the azimuth, X-inclination, Y-inclination of the unit detected by an azimuth detecting means and X-axis and Y-axis inclination detecting means and the locational relationship between a lens and an optical image location detecting sensor. SOLUTION: A unit 20 of inclination and azimuth meters is provided with an X-direction inclinometer, a Y-direction inclinometer, and an azimuth meter. A light receiving unit 103 is arranged directly beneath a point light source part 113, the point light source part 113 is located in the optical axis of a lens 11, and the lens 11 and a position sensor 12 are positioned so that the image of the point light source part 113 may be located at the common electrode of the position sensor 12. Take this as the origin of a coordinate system. When the light receiving unit 103 is moved, the location of the point light source part 113 is changed with respect to the optical axis of the lens 11, and the location of an optical image on the light receiving plane of the sensor 12 as well. This is detected to calculate the amount of movement of the light receiving unit 103. The X-direction and Y-direction inclinometers and the azimuth meter detect a rotational component about each coordinate axis.

5. 发明专利

JPH08285591A INCLINATION MEASURING METHOD FOR VERTICAL HOLE 失效
公开(公告)号：JPH08285591A
公开(公告)日：1996-11-01
申请号：JP11125595
申请日：1995-04-12
申请人： MITSUBISHI PRECISION CO LTD
发明人： TAKAGI HIROSHI
IPC分类号： G01C7/06 , G01C9/00 , G01C15/00 , G01C19/00 , G01C19/56 , G01C19/5776
摘要： PURPOSE: To accurately measure the inclining bearing and angle of a vertical hole by a simple method. CONSTITUTION: The mean of the output values of clinometers at the azimuth positions ψ, ψ+π obtained by rotating the probe containing the clinometers made of accelerators at the predetermined depth position of a vertical hole 10 at 180 degrees with respect to the central axis of the hole 10 is calculated, and the mean value is subtracted to be collected from the clinometer output value of the probe which is propelled in the hole.

6. 发明专利

JPH0712565A POSITIONING APPARATUS USING LASER BEAM 失效
公开(公告)号：JPH0712565A
公开(公告)日：1995-01-17
申请号：JP18222393
申请日：1993-06-29
申请人： MITSUBISHI PRECISION CO LTD
发明人： TAKAGI HIROSHI
IPC分类号： G01C15/00
摘要： PURPOSE:To enhance the surveying accuracy of a positioning operation by a method wherein a laser-beam radiation tube is turned around its optical axis, a laser beam is received by a sensor which has been divided into a plurality of regions, quantities of light of the individual divided regions are detected and the mean in terms of time of the quantities of light of the individual divided regions in its rotation is computed. CONSTITUTION:A laser-beam radiation tube 10 radiates a laser beam 14 to a prescribed direction together with an object to be positioned, and the object is positioned so as to be irradiated with the beam 14. In order to detect an irradiation central position and position it precisely, the converter 16 is divided into four regions Z1 to z4 so as to be divided by orthogonal X-and Y-axes, and quantities of light of the individual regions are detected and converted into electric signals. The individual signals are input to a comparison and output device 18 via signal lines L1 to L4, the means in terns of time of the individual signals is computed, their magnitude is compared, and a composed value is output to a display device 20. An operator turns the radiation tube 10 around an optical axis 14C by a motor 12, and he moves the object while observing the device 20 in such a way that the reference point of the converter 16 coincides with the optical axis 14C. Thereby, the object can be positioned precisely in a short time.

7. 发明专利

JPH0712562A BEND MEASURING METHOD OF HOLE 失效
公开(公告)号：JPH0712562A
公开(公告)日：1995-01-17
申请号：JP18222293
申请日：1993-06-29
申请人： MITSUBISHI PRECISION CO LTD
发明人： TAKAGI HIROSHI
IPC分类号： G01B21/20 , G01C9/00 , G01C19/00
摘要： PURPOSE:To obtain a measuring method in which the bend state of a vertical or nearly vertical hole is measured with high accuracy, continuously and in a short time. CONSTITUTION:The measuring method is a method in which the bend of a hole 12 in the vertical direction or the nearly vertical direction is measured by a probe 18 on which an accelerometer 20 and a gyro 22 have been mounted. Individual inclinations theta at the entrance 12I and the end 12E of the hole 12 are measured by the accelerometer 20, and an inclination between them is measured continuously by the gyro 22. The measuring method is constituted in such a way that the difference between the inclination value of the end 12E on the basis of the continuously measured value and the inclination value, of the end 12E of the hole 12, which has been measured by the accelerometer 20 is regarded as the drift of the gyro 22 having a definite drift rate within the continuous measuring time and that the continuously measured value is corrected.

8. 发明专利

JPH06213669A CALIBRATION METHOD FOR SET VALUE OF COORDINATE SYSTEM OF INERTIA REFERENCE DEVICE OF MOVING BODY 失效
公开(公告)号：JPH06213669A
公开(公告)日：1994-08-05
申请号：JP688893
申请日：1993-01-19
申请人： MITSUBISHI PRECISION CO LTD
发明人： HAYAKAWA YOSHIAKI , TAKAGI HIROSHI , MATSUMOTO SHINSUKE
IPC分类号： G01C21/00 , G01C25/00
摘要： PURPOSE:To provide a calibration method for a set value of each axis of coordinate system of an inertia reference device of a moving body in which setting of initial values of the coordinate system of the inertia reference device of the moving body can be omitted, and the method can be carried out without necessity of providing a new special means in the moving body. CONSTITUTION:The moved course Tr after beginning of flight of a moving body 16 is observed by measuring means 12, 20 provided on known points agaist the moving base point 14 of the moving body 16, Pso. The angle data of respective axes of the coordinate system of an inertia reference device 18 in a missile is obtained by the position Pm of the moving body 16 on reference navigation coordinates at observation from the observed orbit Tr of the moving body 16 on the reference navigation coordinate system, and the obtained angle data are input to the same inertia reference device 18 as set values concerning respective axes through a correspondence means, so as to renew the set values of the last time.

9. 发明专利

JPH06138138A MOTION MEASURING APPARATUS 失效
公开(公告)号：JPH06138138A
公开(公告)日：1994-05-20
申请号：JP29253792
申请日：1992-10-30
申请人： MITSUBISHI PRECISION CO LTD
发明人： KUMAZAWA TOSHIHARU , HAYASHI MINEO , TAKAGI HIROSHI , KONDO HIDEO
IPC分类号： G01P13/00 , G01P15/08
摘要： PURPOSE:To provide an apparatus which reduces a motion detection error by a comparatively simple constitution, enhances the reliability of a motion detection and can reduce the cost. CONSTITUTION:This apparatus is provided with a plurality of apparatus is provided with a plurality of electric motion detectors D1 to DN designed and manufactured so as to have the same performance and with a means C which electrically averages and outputs error dispersion values of motion detection signals S1 to SN respectively output from the motion detectors. The motion detectors are arranged reduandatly in a multilinked shape in such a way that input axis directions B1 to BN for the plurality of motion detectors coincide respectively with the motion detection axis A of a moving body as the detection object of a motion.

10. 发明专利

JPH05249125A 失效
公开(公告)号：JPH05249125A
公开(公告)日：1993-09-28
申请号：JP8022392
申请日：1992-03-03
申请人： MITSUBISHI PRECISION CO LTD
发明人： TAKAGI HIROSHI
IPC分类号： G01P3/36 , G01P3/64
摘要： PURPOSE:To obtain an instrument which can highly accurately measure the speed of a traveling object as continuously as possible. CONSTITUTION:The title instrument is constituted so that the instrument can be provided with a reference pattern 16 which is extended in parallel with the moving line 14 of a traveling object 12 to be measured in the moving space of the object 12, pattern reader 18 which is mounted on a fixed location of the object 12 and, at the same time, continuously reads the pattern 16, and gyro stabilizer 20 provided between the reader 18 and object 12.

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