1996 Vol. 22, No. 3

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Cover Catalogue
Research in Short-Range Sensing of Non-Metal Object in Coal Mine Underground
GAO Qing-yang, WANG Qi-bi
1996, 22(3): 1-4.
<Abstract>(48)
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In the paper a short-range non--metal object sensing technology of capacitance detection is described, which can be used in a wide range, detecting proximity of roof rock and coal, coal level for belt conveyor, coal stack at conveyor head and coal bunker level, air door position, belt misalignment.
1996, 22(3): 5-6.
<Abstract>(24)
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1996, 22(3): 6-9.
<Abstract>(45)
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Internal Model Control in Constant Deceleration Braking Systemfor Hoisting Machine
LEI Huai-gang, GONG You-min, HUANG Hong-yong
1996, 22(3): 9-11.
<Abstract>(41)
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Braking system for hoisting machine is a non--linear electro--hydraulic incorporation system, for which conventional control strategy cannot meet its requirements.The author described internal model control application in hoisting braking system to achieve constant deceleration 更多还原
1996, 22(3): 12-14.
<Abstract>(58)
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1996, 22(3): 14-16.
<Abstract>(33)
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1996, 22(3): 16-19.
<Abstract>(38)
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1996, 22(3): 19-22.
<Abstract>(14)
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Self─Correction Control Technology in the Application of DC Motors
ZHU Xiang-ji, TAO Luo-cheng
1996, 22(3): 23-26.
<Abstract>(36)
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The paper reviewed the development of self--correction technology,deeply analyzed its present application in DC motors,and finally showed us the prospect.
Virtual Instrument, Epoch──Marking in Instrument Industry Development
SUN Xi
1996, 22(3): 27-29.
<Abstract>(29)
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The paper introduced the emergence, strucure and prospect of virtual instrument. comprehensively analyzed the differences from tranditional instrument and its epoch -- marking features.
1996, 22(3): 30-31.
<Abstract>(20)
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Frequency──Variable Speed Regulator in Application of Microcomputer──based Control System for Boilers
DONG Ai-hua, YU Fa-shan, YAN You-yu
1996, 22(3): 32-35.
<Abstract>(34)
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The paper described basic features of frequency--variable speed regulator and its application in automatic ventilation, water supply, oil supply in boiler microcomputer --based control system, and discussed some problems like control signal’s connection, system anti--interference, parameter setting of frequency--variable regulator and application effects.
Designing of Anti──time Overcurrent Relay Utilizing Single──Chip Microcomputer
WU Yong-xiang
1996, 22(3): 36-38.
<Abstract>(39)
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In relay protection system, the single--chip machine has many advantages over tranditional anti--time overcurrent relay. The paper discussed the problems in anti --time overcurrent relay designing and the utilization of assembly language in designing of overcurrent relay function software with anti--time characteristic.
Hall Sensor in Application of Coal Mine Automatio
GONG Yin-he, FU Zhou-xing, GENG Wen-qiang
1996, 22(3): 39-41.
<Abstract>(41)
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The paper described Hall sensor’s application and prospect in power supply system, haulage system, safety protections and so on.
1996, 22(3): 42-44.
<Abstract>(32)
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1996, 22(3): 44-46.
<Abstract>(25)
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1996, 22(3): 46-47.
<Abstract>(54)
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Design of FLP Enclosure for Multi─purpose Combination Switch
CUI Xue-ying
1996, 22(3): 47-51.
<Abstract>(45)
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The paper described the design of thin wall cubic FLP enclosure for multi--purpose combination switch, which is intelligent. compact. suitable for use in centralized control of extensible belt conveyors’ auxilliary epuipment, and also for gateway transport.To satisfy explosion--proof regulations. reinforced rib’s dimensions are determined through calculation of plane stress, and of continuous beam with isospan and even load, strength check, etc. 更多还原
Problems in Use of Locomotive Emergency Braking Unit
ZHANG Jin-bo, ZHONG Xu
1996, 22(3): 51-53.
<Abstract>(80)
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The paper described the problems occured in use of locomotive emergency brakings, and recommended some solutions, which have a certain reference to future design and use.
Use of Rotary Vector in Derivation of Teeth Flank Equation for Circular Worm
SHANG We
1996, 22(3): 54-56.
<Abstract>(29)
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The paper first described teeth flank formation of straight-sided circular worm and expansion of rotary vetor on the base of circular worm equation with rotary vector, and finally briefed the equation application.
1996, 22(3): 57-58.
<Abstract>(40)
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1996, 22(3): 59-61.
<Abstract>(31)
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