KDP晶體生長(zhǎng)機(jī)電控制系統(tǒng)可靠性研究.pdf

1、山東大學(xué)碩士學(xué)位論文KDP晶體生長(zhǎng)機(jī)電控制系統(tǒng)可靠性研究姓名：郝國生申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：周以齊2002.11.29!』鑾奎蘭堡主主垡鎏塞ABSTRACTThehi【ghreliabilityforthecontrolsystemofcrystalgrowthhasalwaysbeenthemostbasicpreconditionforthehighqualityofcrystalduringthelongte

2、rmstudyoftheartificialcrystalgrowthWiththedevelopingofmaterialscienceandmodemtechnologytherequirementofthequalityofcrystalisbecomingmoreandmorestrict，SOisthatofthereliabilityofthecontrolsystemofcrystalgrowthTomeettheneed

3、ofit，onthebasisofanalyzingindetailtherun—mechanismofthemechanicalelectroniccontrolsystemofcrystalgrowth，frombothhardwarecompositionandsoftwareprogramcontrol，thisresearchtriestOimprovethereliabilityofthecontrolsystemofcry

4、stalgrowthAccordingtothecompositionalfeatureforthehardwareofthesystem，faulttolerancetechniqueisappliedinthedevelopmentofthesoftwareprogram：forthemalfunctionsofsomecomponentsofthesystemareforeseeable，hardwareredundancyhas

5、beendesignedAnd，inthisresearchautomaticswitchofthespareelementsisrealizedwithoutinfluencingtherunofthesystemwhenmalfunctionsoccRrOnthebasisofthehardwareredundancytherunofthesystemisalsonecessarilymonitoredinsofhtaleprogr

6、amthatis，givingalarmandprintingthemessageofmalfunctions(suchasincidentaloutofpowerofthemotorandheaterturno國And，whatisthemostimportant，thepositiveandnegativerotationsforthemotorhavebeenrealizedandthecommutatorinthesystemb

7、eenremovedtoimprovethereliabilityofthesystemThedesignofthesoftwareprogrammainlydealswiththesignalsamplingofthetemperatureandthesaturationofthecrystalsolution，thecalculationofthesolubilityandsupersaturation，andthecontrolo