湖南科技大学学报(自然科学版)
湖南科技大學學報(自然科學版)
호남과기대학학보(자연과학판)
JOURNAL OF HUNAN UNIVERSITY OF SCIENCE & TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
2期
22-26
,共5页
物性实验%仪器设计%信号源%模拟实验
物性實驗%儀器設計%信號源%模擬實驗
물성실험%의기설계%신호원%모의실험
physical testing experimental%instrument design%signal source%simulated experiment
针对地球物理学基础物性测试实验工作中拥有自主知识产权实验用仪器发展缓慢,实验用仪器型号少的现状,利用复杂可编程逻辑器件(CPLD)为波形产生单元、ARM处理器为仪器主控单元设计了步长为对数等间距,频点间以2/3倍频点进行加密、带宽为0.001~1000 Hz、可选多档恒流输出的频率域岩矿石电性实验序列信号发送机.室内实验与模拟器件实验表明:该信号源输出电流恒定、波形频率准确,可用于实际实验工作.
針對地毬物理學基礎物性測試實驗工作中擁有自主知識產權實驗用儀器髮展緩慢,實驗用儀器型號少的現狀,利用複雜可編程邏輯器件(CPLD)為波形產生單元、ARM處理器為儀器主控單元設計瞭步長為對數等間距,頻點間以2/3倍頻點進行加密、帶寬為0.001~1000 Hz、可選多檔恆流輸齣的頻率域巖礦石電性實驗序列信號髮送機.室內實驗與模擬器件實驗錶明:該信號源輸齣電流恆定、波形頻率準確,可用于實際實驗工作.
침대지구물이학기출물성측시실험공작중옹유자주지식산권실험용의기발전완만,실험용의기형호소적현상,이용복잡가편정라집기건(CPLD)위파형산생단원、ARM처리기위의기주공단원설계료보장위대수등간거,빈점간이2/3배빈점진행가밀、대관위0.001~1000 Hz、가선다당항류수출적빈솔역암광석전성실험서렬신호발송궤.실내실험여모의기건실험표명:해신호원수출전류항정、파형빈솔준학,가용우실제실험공작.
For basic physical testing experimental work,it is a fact that the testing experimental apparatus with independent intellectual property rights developed slowly and the types are limited,So an experimental signal transmitter was designed,for electrical properties of rocks and minerals,which had logarithmic equidistant step and during spacing points encrypted as 2/3 frequency doubling,and its bandwidth was between 0.001Hz to 1 000 Hz and it was with optional multi-range constant-current output.After both laboratory experiment and analog experiments,the results showed that the signal source sends constant current and the accurate waveform frequency.In all,the transmitter can be used for practical experimental work.