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101. 发明专利

JPS56120956A DETECTING DEVICE FOR DIRECTION OF ROTATION 失效
公开(公告)号：JPS56120956A
公开(公告)日：1981-09-22
申请号：JP2502280
申请日：1980-02-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： KISO MATAICHIROU , INOUE SATORU
IPC分类号： G01P13/04
摘要： PURPOSE:To perform discrimination of the rotational direction simply and accurately by a method wherein the outputs of a pair of rotation detectors whose phases are varied in a preceding-backing manner in accordance with the rotational direction of a rotary body are inputted in FF circuits through waveform shaping devices, differentiators and rectifying circuits respectively. CONSTITUTION:The outputs of rotation detectors 2a and 2b arranged perpendicularly to the key groove of the rotational shaft 1 of a motor are inputted right- side FF6a and left-side FF6b through waveform shaping devices 3a, 3b, the differentiators 4a, 4b and the rectifying circuits 5a, 5b respectively. The outputs thereof are inputted in a shift circuit 7 to shift the zero level to the center of a rectangular wave and thereafter in a smoothing circuit 8. The smoothing circuit 8 delivers a positive signal when the pulse of the detector 2a precedes that of the detector 2b while delivering a negative signal when the relation is reverse, in accordance with the property of FF6. By monitoring those signals by a level-indicating device 9, the direction of rotation can be discriminated simply and accurately.

102. 发明专利

JPS5522144A AUTOMATIC JUDGING DEVICE 失效
公开(公告)号：JPS5522144A
公开(公告)日：1980-02-16
申请号：JP9506278
申请日：1978-08-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： KISO MATAICHIROU , KOIZUMI TAKAYUKI , USAMI TERUO , INOUE SATORU
IPC分类号： G01H17/00 , G01H3/00 , G01M99/00
摘要： PURPOSE:To make it possible to accomplish the accurate judgement without any influence from dark noises by using a plurality of signals including signals caused by the environmental conditions as an object to be judged and by processing the signals and effecting the comparison and inspection with the use of an envelope line detecting circuit and an arithmetic circuit. CONSTITUTION:When a test motor 1 is stopped, a measuring microphone 2 and a microphone 12 for dark noises detect the dark noises togehter so that the outputs of noise meters 3 and 13 and the outputs of filters 4A and 14A become substantially equal to each other. Both of those output signals are detected by envelope detecting circuits 6A to 6C to 16A to 16C, respectively, so that the outputs of arithmetic circuits 7A and 7C become zero when the motor 1 is stopped. In case the motor 1 is driven to generate motor noises, these noises are detected by the microphone 2. As a result, the amplitude and waveform of each frequency component are compared through the arithmetic circuits 7A to 7C, which are made receptive of the envelope detected outputs of both signals, so that the motor noises are judged.

103. 发明专利

JPS5498439A FLAW DETECTOR FOR ROLLING BEARING 失效
公开(公告)号：JPS5498439A
公开(公告)日：1979-08-03
申请号：JP453178
申请日：1978-01-19
申请人： MITSUBISHI ELECTRIC CORP , KANSAI ELECTRIC POWER CO
发明人： YAMAMOTO TATSUO , YOSHIBAYASHI SHIGERU , KOIZUMI TAKAYUKI , USAMI TERUO , INOUE SATORU
IPC分类号： F16C19/52 , G01M13/04
摘要： PURPOSE:To accomplish discrimination of flaw caused on the rolling bearing by determining the difference in the waveform of frequency axis signal for the rolling bearing of the rotating shaft between the time of the normal operation and the inspection. CONSTITUTION:First, oscillatory waveform data obtained from the normal bearing is digitalized and then, stored in a memory 5b. The waveform data of memories 5a and 5b is fed to an operation sector 6 where an operation is performed to obtain the results of the inspection. Conversion is made from the time region to the frequency region and the result is converted to a power spectrum. Then, the normal wave form is subtracted from the inspection waveform to determin the difference between the power spectrums of the two waveforms. The results is indicated by a display section 7.

104. 发明专利

JPS5497445A FORECASTING APPARATUS 失效
公开(公告)号：JPS5497445A
公开(公告)日：1979-08-01
申请号：JP453378
申请日：1978-01-19
申请人： MITSUBISHI ELECTRIC CORP , KANSAI ELECTRIC POWER CO
发明人： YAMAMOTO TATSUO , TEJIMA YASUSHI , KOIZUMI TAKAYUKI , USAMI TERUO , INOUE SATORU
IPC分类号： G07C3/00 , G07C3/02
摘要： PURPOSE:To forecast remaining service period, service times, etc. by obtaining the quantities of the condition of machines, e.g., values such as of vibrations, temperature and the like from the past up to the present as time functions and calculating whether the predetermined service limit values are reached or not from the rate of their rise. CONSTITUTION:A sensor 1 detects the vibrations of, e.g, a bearing and digitizes the same with a digital voltmeter 2. A control part 3 subsequently introduces the signals having been digitized at the t0, t1, t2 times and have them stored in memories 4a, 4b, 4c. When the storage at the three points is completed, the control part 3 transfers the memory values into an arithmetic part 5, which in turn approximates the curves as secondary curves and performs operations of solving the simultaneous equations of the formula (1). A, B, C are unknown. Next, in order to obtain the remaining service time DELTAt, the arithmetic part performs operations by solving the formula (2) by using the difference DELTAt between the specified limit value Mmax and the current output value L0. A display part 6 indicates this remaining service time DELTAt in concrete numerical values, e.g., time, number of days, times, etc. or gives an alarm when DELTAt is nearly zero.

105. 发明专利

JPS5434698A WARNING DEVICE FOR GAS LEAK 失效
公开(公告)号：JPS5434698A
公开(公告)日：1979-03-14
申请号：JP10129477
申请日：1977-08-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： INOUE SATORU , USAMI TERUO , INANI TAKAHIKO
IPC分类号： G01N27/04 , G01N27/00 , G08B21/00 , G08B21/16 , G08B23/00
摘要： PURPOSE:To secure high-accuracy and steady detection for the gas leak via the flow meter and the thermometer.

106. 发明专利

JP2006226762A ROLLOVER SENSING SYSTEM 审中-公开
公开(公告)号：JP2006226762A
公开(公告)日：2006-08-31
申请号：JP2005039024
申请日：2005-02-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： KONNO NOBUAKI , TOKUNAGA TAKASHI , INOUE SATORU
IPC分类号： G01P15/00 , G01P15/18
摘要： PROBLEM TO BE SOLVED: To solve the following problem that the conventional rollover sensing device provided with a pair of vertical acceleration sensors are discretely separated in which misalignment of detection axes or errors in fixing angle may arise, so the correction for the detection error is needed and additional sensors are necessitated, consequently the process circuit becomes complicated. SOLUTION: An expensive and reliable rollover sensing device can be constituted as follows: the pair of vertical acceleration sensors are adjacently disposed on the left and right sides of a vehicle discretely, thereby the misalignment of axes or the error of fixing angle is inhibited, so the angular acceleration, angular velocity and roll angle can be precisely detected. Furthermore, the influence of external disturbance is inhibited by disposing the process means and rollover determination part on the same substrate. COPYRIGHT: (C)2006,JPO&NCIPI

107. 发明专利

JP2001343402A DC CURRENT DETECTOR 失效
公开(公告)号：JP2001343402A
公开(公告)日：2001-12-14
申请号：JP2000168030
申请日：2000-06-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： INOUE SATORU , MIZOHATA FUMIO
IPC分类号： G01R15/14 , G01R19/00
摘要： PROBLEM TO BE SOLVED: To solve the problem in the conventional DC current detectors that measurement errors become large in the by eliminating failures in the holding of the ground level of an integrator at 0 V attributed to a larger capacity of a capacitor required so far for mainly determining the gain of the low frequency band that disables quick discharging of electric charges. SOLUTION: The DC current detector is provided with reset switches C1 and C2, which are connected in parallel respectively to capacitors C1 and C2 that affect the ground level of the integrator 3 as components of the integrator 3, to discharge electric charges accumulated in the capacitors C1 and C2 and control means 6 and 7, which perform a control to operate the reset switches 4 and 5 during the currentless period of the current to be measured.

108. 发明专利

JP2001327064A MONITORING DEVICE FOR PROTECTIVE RELAY 失效
公开(公告)号：JP2001327064A
公开(公告)日：2001-11-22
申请号：JP2000139259
申请日：2000-05-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： INOUE SATORU , KOBAYASHI TAKAHIRO , SUZUKI MAKOTO , KUSANO NORIMASA
IPC分类号： G01R31/00 , H02H3/02 , H02H3/05
摘要： PROBLEM TO BE SOLVED: To provide a protective-relay monitoring device for surely detecting failures, even in a filter circuit. SOLUTION: A first monitoring signal at a cut-off frequency fa or a nearby frequency f1≈fa related to the characteristics of a low-cut high-pass filter included in an integrator 19, and a second monitoring signal at a cut-off frequency fb or nearby frequency f2≈fb related to the high-cut low-pass characteristics of an analog filter 5, are entered into a monitoring winding 18 of an input transformer 15. The factors for the frequencies f1 and f2 are extracted by a digital processing unit 12, and the digital processing unit 12 generates an apparatus abnormality signal, when a change of amplitude is exceeds a prescribed range.

109. 发明专利

JPH08128916A OIL LEAK DETECTION DEVICE 失效
公开(公告)号：JPH08128916A
公开(公告)日：1996-05-21
申请号：JP26700594
申请日：1994-10-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAJIMA TOSHIRO , INOUE SATORU , TSUYA SADAHIRO
IPC分类号： G01N21/84 , F17D5/02 , G01M3/38 , G01N21/27
摘要： PURPOSE: To determine the kinds of oil and the quantity of leak by irradiating ultraviolet light and visible light alternately, providing a wavelength selection means in an image pickup means, and comparing images respectively when the ultraviolet light and the visible light are irradiated. CONSTITUTION: The regions of the ultraviolet light and the visible light light are selected form the light of the light source 1 by a wavelength filter 2, and a sample face 4 is alternately irradiated thereby using a switching mechanism 3. The certain wavelength reflected light is selected by a filter 5 so as to pickup an image via a lens 6 using an ITV camera 7. The output is switched by a change-over switch 8 synchronizing with the mechanism 3 so as to divide into video memories 9 and 10. When the ultraviolet light is selected, the oil adhesion portion of the sample face 4 generates fluorescence so as to increase brightness, and in the other portion, brightness distribution is decided based on reflectance at a certain wavelength. When the visible light is selected, the oil adhesion portion 4 absorbs the light, and in the other portion, the brightness distribution is decided based on reflectance at a certain wavelength. A finite difference treatment is conducted on both image data by a computing device 11, the brightness signal level of the oil adhesion portion is emphasized. The brightness change of the other portion is offset so that the automatic detection of oil leak can be performed.

110. 发明专利

JPH0851459A SYSTEM AND EQUIPMENT FOR TRANSMITTING DIGITAL SIGNAL 失效
公开(公告)号：JPH0851459A
公开(公告)日：1996-02-20
申请号：JP18612494
申请日：1994-08-08
申请人： SEKYU KODAN , MITSUBISHI ELECTRIC CORP
发明人： SHIMADA TAKASHI , INOUE SATORU
IPC分类号： H03M5/22 , G06F17/15 , H03M13/00 , H04L27/18
摘要： PURPOSE:To accurately detect information even from a received signal with a low S/N ratio by allowing the order of a sequence to be modulated to correspond to the symbol sequence of codes to be transmitted. CONSTITUTION:This transmitting equipment is provided with a digital modulator 2 for modulating the transmission order of a sequence having acute self- correlation correspondingly to the symbol sequence of a digital signal to be transmitted and barker sequence compressors 5a, 5b for compressing the modulated waveform of the sequence having the acute self-correlation which is obtained from the modulator 2 in each of forward order and reverse order. The compressed outputs of the forward order and the reverse order are compared with each other by a comparator 6 and the compared result of the comparator 6 is decoded by a decoder 7. Since a carrier is modulated by a sequence having acute self-correlation such as a barker sequency and the order of the sequence to be modulated is allowed to correspond to the symbol sequence of codes to be transmitted, high frequency can be compressed so as to be easily distriminated, a white external noise is reduced by an adding effect, and simultaneously with the reduction, the amplitude of a signal component is amplified so as to improve an SN ratio.

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