人造金剛石壓機(jī)嵌入式控制系統(tǒng)設(shè)計An Embedded Control System f

針對金剛石生產(chǎn)的復(fù)雜工藝流程特點和目前生產(chǎn)過程中存在的問題，設(shè)計了一套以
ARM7TDMI (S3C44B0X) 處理器作為主控芯片的人造金剛石六面頂壓機(jī)控制系統(tǒng)。系統(tǒng)在軟、 硬件方面采取措施消減溫度和負(fù)壓對壓力檢測的不良影響,用三電機(jī)控制壓力以提高升壓速度 和控制精度；設(shè)計專門的電路來保證加熱控制精度。軟件采用間歇掃描工作模式，通過容錯技 術(shù)保護(hù)工藝參數(shù)，確保系統(tǒng)工作可靠。系統(tǒng)可對整個生產(chǎn)工藝過程進(jìn)行全方位監(jiān)控。實驗測試和用戶使用證明，系統(tǒng)控制精度高、操作方便、重復(fù)性好，而且運行穩(wěn)定可靠，有助于提高金剛石壓機(jī)的生產(chǎn)效率和產(chǎn)品質(zhì)量。
關(guān)鍵詞：六面頂壓機(jī)；人造金剛石；嵌入式系統(tǒng)；壓力控制；溫度控制

Abstract：To improve production quality and efficiency of synthetic diamond, a novel control system of cubic press has been developed based on ARM7TDMI(S3C44B0X). Two efficient methods were adopted to solve the problems of large zero drift and poor repeatability by software and hardware. The pressure boosting speed and control precision were improved by three motors coordinated control and a special circuit was proposed for temperature control. Furthermore, several measures were utilized to prevent the malfunction of system. Application results have indicated that this control system has the advantages of low zero drift, high control precision, good repeatability and reliability.
Keywords：Cubic press; Synthetic diamond; Embedded system; Pressure control; Temperature contro