 Wysłany: Czw 3:34, 07 Kwi 2011 Temat postu: AT89C51 -based soil temperature and humidity data |
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| ,herve leger uk
AT89C51 -based soil temperature and humidity data acquisition and control system design ot; multiplication, and transformation by the sensor circuit output voltage as a function of soil moisture content between 0 . Sensor probe is composed of a pair of needle-like stainless steel column , and easy into the soil , little effect on soil structure . AT89C51 and relay control system to control the motor to achieve the regulation of temperature and humidity , with similar traditional and modern test systems test system compared with the simple structure, small size , low cost, versatility and good features , which will help secondary development. ( continued on 1063 ) 4 Sun Jie , et al : SMA Asphalt Pavement Construction Quality Control elements of 1063MainPointsAnalysisofSMAAsphaltPavementConstructionQualityControlSUNJie, ZHANGXiao-ning (RoadEngineeringInstitute, SouthChinaUnivofTech, Guangzhou510640, P. R. China) [Abstract] BasedonthedetailedintroductionofSMApavementconstructionandthepracticework, tocounterthefocusesondisadvantagesofSMAAsphaltPavementinduringimplementation, adiscussiononthetotalasphaltpave. mentmanagementandcontrolwhichincludesdesign, rawmaterials, mixtureratioandsurfacecourseconstructionandSOonaregivenmainly. Also, itprovidesreferencefortheengineeringapplicationofSMAsurfacelater. [Keywords] asphaltmixtureSMApavementqualitycontrol ( pick No. 1034 on ) |
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