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    • 5. 发明专利
    • AUXILIARY SYSTEM TESTING SYSTEM
    • JPS56122560A
    • 1981-09-26
    • JP2519280
    • 1980-03-03
    • FUJITSU LTDNIPPON TELEGRAPH & TELEPHONEOKI ELECTRIC IND CO LTDNIPPON ELECTRIC COHITACHI LTD
    • FUKUDA HARUKIKOGURE KOUJIAKATA KAZUHIKOMATSUMOTO TAKASHIOBARA SUSUMU
    • H04M3/26H04M3/12
    • PURPOSE:To control both an existing and an auxiliary control devices by one master station, by making one control device communicate with the master station and also testing the other control device by the master station, in two control units connected to the master station through the interface IF equipment. CONSTITUTION:The existing and auxiliary systems between the master station 1 and the IF equipment 2 are connected by the transmission lines 5, 6, respectively, the equipment 2 and both the existing and auxiliary control devices 3, 4 are connected by the IF lines 5', 6' corresponding to the lines 5, 6, respectively, and also the IF line 7 corresponding to the line 6, and the IF line 8 corresponding to the line 5 are connected to the devices 3, 4, respectively. When the normal operation is executed, the master station 1 communicates with the device 3 through the line 5 and the IF line 5', and also the device 4 is tested by the master station through the line 6 and the IF line 6'. When the line 6 is disconnected, the master station 1 utilizes an idle time of communication with the device 3, and tests the device 4 through the line 5, the equipment 2 and the IF line 8 by giving the instruction to the equipment so that the IF line 5' is switched to the auxiliary system IF line 8 connected to the device 4. In case when the line 5 is faulty, as well, the device 3 is controlled by the master station 1 through the line 6, the equipment 2 and the IF line 7.
    • 10. 发明专利
    • MAGNETIC PROPERTY MEASURING DEVICE
    • JPS5559353A
    • 1980-05-02
    • JP13169278
    • 1978-10-27
    • OKI ELECTRIC IND CO LTDNIPPON TELEGRAPH & TELEPHONE
    • HANDA TOORUAKATA KAZUHIKOSAKIDA KAZUTAKA
    • G01R33/12G01R33/14
    • PURPOSE:To ensure a high-accuracy measurement of the composite semi-hard magnetic material or the like in terms of the magnetic properties of the complicated multiple items as well as to secure a high flexibility to give the free setting of the measurements according to the materials to be measured. CONSTITUTION:Controller 01 starts operation by start signal 1 and then erases via the clear signal the undesired data for up-down counters 26, 36, 41 and 42 plus temporary memory units 27, 37 and 44 each. Magnetic material 12 to be measured is inserted into detection coil 21 to actuate current generator 10. Magnetization current i1 increases with start signal 2, and thus count value NH obtained by integrating the signal voltage produced at detection coil 31 increases. And signals tP6 and tP7 are generated every time the agreement is obtained between value NH and the plus and minus value of comparison values C56 and C57 which are set at numerical value setters 51-57, and the current inversion is commanded to generator 10. The gate signal which actuates comparators 61-67 is delivered from controller 01 with every inversion of the current, and numerical value detection signals tP1- tP5 are produced from the comparators to detect the magnetic holding forces (tP2, C52), the residual magnetic flux densities (tP3, C53), the permeabilities (tP5, C55) to an optional magnetic field, and others.