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121. 发明专利

JPS6360089A DETECTION DEVICE FOR FOCUS POSITION OF LIGHT BEAM 失效
公开(公告)号：JPS6360089A
公开(公告)日：1988-03-16
申请号：JP20423486
申请日：1986-08-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO , SANEMORI AKIRO
IPC分类号： B23K26/046 , G02B7/28
摘要： PURPOSE:To provide the title detection device which can detect the focus position of the laser beam of high energy especially with good accuracy by composing so as to project the laser beam passing through a pass and cut means intermittently on an optical detector. CONSTITUTION:In the above detection device the light beam 12 diameter attains to the minimum at its focus F position and the amount passing through the pass and cut means of the light beam 12 to move in the direction along the optical axis of the light beam 12 attains to the maximum at the time when said pass and cut means is located at the focus F position. The light passing thru said pass and cut means is then caught by an optical detector 9 and the position in the moving direction of the pass and cut means at the time is detected by a position detector 2. The focus F position of the light beam 12 is then detected granting that the focus F of the light beam 12 is located at the position equivalent to the detection result of the detector 2 of the time when the light amount caught by said detector 2 attains to the maximum. As a result, the focus position can be detected with good accuracy even in the light beam of high energy without damaging the optical detector by the energy of the light beam.

122. 发明专利

JPS6360087A DETECTION DEVICE FOR FOCUS POSITION OF LIGHT BEAM 失效
公开(公告)号：JPS6360087A
公开(公告)日：1988-03-16
申请号：JP20423286
申请日：1986-08-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO , SANEMORI AKIRO
IPC分类号： B23K26/046 , G02B7/28
摘要： PURPOSE:To provide the title device to detect the focus position with good accuracy even in case of the light beam of high energy detecting the focus position of the light beam with the detection of the ultrasonic wave propagating the inside of a projecting piece by generating at the time when the light beam is projected on the light beam projecting piece. CONSTITUTION:In this invention the projecting part is deflected by the thermal expansion by the light beam 12 projecting on the light beam projecting piece 1 and an ultrasonic wave is caused from this part. When the focus F of the light beam 12 is not coincided with the surface of the projecting piece 1, the plane wavy propagation component of the ultrasonic wave propagating into the projecting piece 1 becomes more. On the other hand, in case of the focus F of the light beam 12 being coincided with the surface of the projecting piece 1, the spherical propagation component becomes more. Ultrasonic wave detectors 1a-1e detect such propagation waves, which are given to a focus position calculating means. Said means then calculates the position equivalent to the the detection result of the position detector 8 of the time of discriminating of locating on the focus F of the light beam 12 of the projecting piece 1 as the focus position of the light beam 12 from the detection result of the detectors 1a-1e.

123. 发明专利

JPS6358186A ULTRASONIC SENSOR 失效
公开(公告)号：JPS6358186A
公开(公告)日：1988-03-12
申请号：JP20423686
申请日：1986-08-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： SANEMORI AKIRO , TAKASHIMA KAZUO
IPC分类号： G01S7/524 , G01S7/52 , G01S15/08
摘要： PURPOSE:To enable a measurement to be performed in an atmosphere in danger of explosion and prevent a wrong measurement due to an external electromagnetic noise from being conducted by using light in signal transmission among an ultrasonic transmitting circuit, an ultrasonic receiving circuit, an energy source and a measured value processor. CONSTITUTION:Light energy from a light source is transmitted to an ultrasonic transmitting circuit 10 through an optical fiber bundle 107 and converted to electric energy to become the driving electric power of the transmitting circuit 10. On the other hand, an optical fiber bundle 108 transmits a trigger signal and, receiving it, the transmitting circuit 10 transmits an ultrasonic wave to an object 12 to be measured. The ultrasonic wave reflected from the object 12 to be measured is received by an ultrasonic receiving circuit 11 and, after once converted to electric signals, converted again to light signals to be transmitted to a measured value processor through an optical fiber bundle 119. In the receiving circuit 11, the light energy from the light source is transmitted through an optical bundle 117 and converted to electric energy to become the driving electric power of the receiving circuit 11. Such a constitution detects a time at which the trigger signal that is the timing signal of an ultrasonic transmission is transmitted and an ultrasonic wave receiving time and calculates the distance of the object 12 to be measured.

124. 发明专利

JPS6358135A PIPE INNER SURFACE MEASURING APPARATUS 失效
公开(公告)号：JPS6358135A
公开(公告)日：1988-03-12
申请号：JP20422886
申请日：1986-08-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO
IPC分类号： G01B11/12 , G01B11/24 , G01B11/245 , G01N21/88 , G01N21/954
摘要： PURPOSE:To enable the measurement of the diameter of the inner surface of a pipe with a quick single measuring action, by projecting light emitted from a light emitting means of an optical type distance meter provided in a pig to both diametrical directions of a pipe to be measured to receive the reflected beams of light thereof. CONSTITUTION:A pig 10 is inserted into a pipe P to be measured and the center axis of the pig 10 is aligned with the axis of the pipe by making the axis center of a support rod 110 match the axis of the pipe. On the other hand, power is supplied through a cable 111 from a processor 70 and a light emitting circuit 11 activates a light emitting element 12 to emit light. The projection light from the element 12 is reflected with reflecting mirrors 41 and 42 of a reflecting mirror block 40 through a projection lens 13 to be projected outside the casing 101 through projecting windows 100a and 100b, reflected on the inner surface of the pipe P to be incident on reflecting mirrors 43 and 44 and reflected in the direction along the center axis of the casing 101 to be converged on light receiving lenses 14a and 14b, forming images on 1-D photodetectors 15a and 15b. Electrical signals specifying a photodetector where the reflected light image is formed are sent to the processor 70 from output circuits 16a and 16b to measure the inner diameter of the pipe P by processing.

125. 发明专利

JPS6358134A PIPE INNER SURFACE SHAPE MEASURING APPARATUS 失效
公开(公告)号：JPS6358134A
公开(公告)日：1988-03-12
申请号：JP20422786
申请日：1986-08-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO
IPC分类号： G01B11/24 , G01N21/88 , G01N21/954
摘要： PURPOSE:To enable the measurement of the inner diameter of a pipe to be measured without turning a pig, by setting two optical type distance meters provided in the pig in the directions of measuring distance different by 180 deg. from each other to measure the inner diameter of the pipe with one action. CONSTITUTION:A pig 1 is inserted into a pipe P to be measured being supported with a support rod 110. Here, the center axis of the pig 1 is aligned with the axis of the pipe by matching the axis center of the support rod 110 with the axis of the pipe. On the other hand, power is supplied through a cable 111 from a processor 70 to light emitting circuits 11 and 21 for actuating light emitting elements 12 and 22 to emit beams of light. The projected beams of light are reflected on the inner surface of the pipe P through projection lenses 13 and 23, a projection/light receiving window 100 and the like and incident on a casing 101 to form images on 1-D photodetectors 15 and 25 through light receiving lenses 14 and 24. Electrical signals specifying a photodetector where the reflected light image is formed are sent to a processor 70 through the cable 111 from output circuits 16 and 26. This allows the performing of a quick single measurement simultaneously with optical type distance meters 10 and 20 set in the direction of measuring distance different by 180 deg. from each other to determine the inner diameter of the tube P.

126. 发明专利

JPS6358131A PIPE INNER SURFACE SHAPE MEASURING APPARATUS 失效
公开(公告)号：JPS6358131A
公开(公告)日：1988-03-12
申请号：JP20422486
申请日：1986-08-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO
IPC分类号： G01B11/24 , F17D5/00 , G01B11/30 , G01N21/88 , G01N21/954
摘要： PURPOSE:To eliminate a problem of torsion of a cable due to rotation of a detection pig in a tube to be measured, by a method wherein a shaft driven to be rotated and also to rotate the pig is made hollow and a photodetector and a light emitting element are respectively provided at both ends of the hollow shaft. CONSTITUTION:A light emitting element 57 is always emitting light by a current given through a cable 111 and a signal converter 56 of a rotary driver pig 50 from a processor 70. This light is photoelectrically converted to electric energy with a photodetector 18 of a detection pig 10 through a hollow part of a motor shaft 52 to be stored into a capacitor 19 and also to be supplied to an output circuit 16 and a light emitting circuit 11. Light emitting from a light emitting element 12 is projected through a projection lens 13 and a light projecting/ receiving window 100 and is reflected on the inner surface of a tube P to be measured. The reflected light is focused with a light receiving lens 14 and again passed through the window 100 to form an image on a one dimensional photodetector 15. Here, a signal is outputted to specify the light receiving element on which the image of the reflected light is formed, actuates an element 17 to perform a corresponding light emitting operation and an optical signal is sent to an element 58 to be converted into an electrical signal. This signal is amplified and converted with the signal converter 56 into a digital signal to be outputted to the processor 70.

127. 发明专利

JPS6281828A OPTICAL SIGNAL TRANSMISSION SYSTEM 失效
公开(公告)号：JPS6281828A
公开(公告)日：1987-04-15
申请号：JP22226285
申请日：1985-10-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO , SUGIYAMA MASAYUKI , HIKI MASAHIRO , UWAZUMI YOSHIAKI
IPC分类号： H04B10/00 , H04B10/272 , H04B10/548 , H04B10/572 , H04J14/00 , H04J14/02
摘要： PURPOSE:To discriminate and process plural sets of peculiar information without confusion by sending each specific information outputted from plural optical signal transmission/reception terminal devices to one optical signal transmission/ reception terminal device as difference frequency signals. CONSTITUTION:When data request is issued to each of other optical signal transmission/reception terminal devices 2 from one high-order optical signal transmission/reception terminal device 1 at first, each transmission/reception terminal device 2 sends optical signals having predetermined peculiar transmission frequencies f1, f2...fn to the transmission/reception terminal device 1. then the transmission/reception terminal device 1 discriminates each transmission/ reception terminal device 2 to process the peculiar information. Further, since the peculiar information measured by each transmission/reception terminal device 2 changes time by time, when deviations DELTAf1, DELTAf2...DELTAfn of the time wise changing information are sent with respect to the frequencies f1, f2...fn, the data is sent further in details.

128. 发明专利

JPS6281519A RANGE FINDER 失效
公开(公告)号：JPS6281519A
公开(公告)日：1987-04-15
申请号：JP22226485
申请日：1985-10-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO , SUGIYAMA MASAYUKI
IPC分类号： G02B7/32 , G01B11/00 , G01C3/00 , G01C3/06
摘要： PURPOSE:To secure stable measuring accuracy without being affected by the variation in an S/N ratio, by repeatedly measuring the average number of times set on the basis of the S/N ratio at the time of measurement and dividing the sum total value, obtained by adding measured results, by the average number of times. CONSTITUTION:The luminous flux emitted from a light source 1 is transmitted to a projection lens 2 to irradiate an objective matter 3 to a light spot 4 while a light receiving lens 5 picks up the image of he light spot 4 to form the same on the light receiving surface of a light receiving element 6. The electric signals iA, iB outputted from the light receiving element 6 by the formation of the image are added by an adder 7 and the average number of times are set on the basis of the S/N ratio determined by the added value by an average-number- of-time setting means 11 and measurement is repeated by the set average number of times and the processing is performed by an average processing circuit 15 so that the sum total value of the measured results is divided by the above- mentioned average number of times to obtain the average value of the measured results.

129. 发明专利

JPS6281514A RADIUS OF CURVATURE GAUGE 失效
公开(公告)号：JPS6281514A
公开(公告)日：1987-04-15
申请号：JP22227185
申请日：1985-10-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO , SUGIYAMA MASAYUKI
IPC分类号： G01B11/24 , G01B11/255
摘要： PURPOSE:To make measurement of a curvature of a specimen surface only by opposed arrangement of the specimen and three and more light projectors, by constructing in such a way that they are operated in time sequence. CONSTITUTION:A light source 11a of a light projector 11 is turned on by an output signal of a timing generator 17 and a light spot 4a of proper size is directed onto a specimen 3 by a light-projecting lens 11a. An image of this light spot 4a is developed on the light-receiving plane of a light-receiving element 14b by a light-receiving lens 14a. Next, source 12a of a light-projector 12, source 13a of a light-projector 13 are operated in time sequence and light spots 4a, 4b, 4c formed onto 3 and more points of the specimen by each projector 11, 12, 13 are received in a light-receiver 14 alternately and from distance outputs to each point oriented by outputs of this light-receiver 14, the curvature of the measurement surface of the specimen 3 can calculated.

130. 发明专利

JPS6281509A DISTANCE MEASURING APPARATUS 失效
公开(公告)号：JPS6281509A
公开(公告)日：1987-04-15
申请号：JP22227285
申请日：1985-10-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKASHIMA KAZUO , SUGIYAMA MASAYUKI
IPC分类号： G01B11/14 , G01B11/00 , G01C3/00 , G01C3/06
摘要： PURPOSE:To measure quickly distance between specimens and groove width etc., allowing measuring light fluxes to be emitted in 2 back-to-back directions and simultaneous measurements of 2 points. CONSTITUTION:Light fluxes 25 transmitted through lenses 16, 17 other emission from a light source 15 have its part 25a reflected by a half-mirror 18 and this reflected beam is directed to a light spot Pa on specimen 19a from the second light emission opening 14a. The balance of the fluxes 25 after transmitted through the half-mirror 18, is reflected by a mirror 20 to reach the half-mirror 18 again and after reflection by the half-mirror 18, they are directed on a specimen 19b to a light spot Pb from the aperture 14a. Light-receiving lenses 21a, 22b photograph images of said light spots Pa, Pb and pick up these images on light-receiving surfaces of light-receiving elements of 22a, 22b and electric signals depending upon these image positions are subjected to arithmetic operations by distance-calculating units 23a, 23b and a distance D between the specimens 19a, 19b can be obtained.

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