国外电子测量技术
國外電子測量技術
국외전자측량기술
Foreign Electronic Measurement Technology
2015年
11期
91-95
,共5页
单片机%脉冲计数%LC振荡电路%RC充电电路
單片機%脈遲計數%LC振盪電路%RC充電電路
단편궤%맥충계수%LC진탕전로%RC충전전로
micro-controller%the pulse counting method%LC oscillator circuit%RC charging circuit
针对当前专用测量仪在频率、电容和电感测量方面,表现出价格昂贵,体积大,携带不方便等问题,提出以单片机作为计算、控制和数据处理核心,设计电路。利用脉冲计数法得到常用信号频率的参数值;利用电感、小电容的元器件特性,通过测量L C振荡电路的频率,得到电容和电感的参数值;利用测量RC充电电路时间常数τ,得到大电解电容的参数值。样机实验表明,对于常见频率、电容和电感,测量结果与标准专用测量仪相当,并兼具便携、智能、低成本和易于使用的优势,值得推广。
針對噹前專用測量儀在頻率、電容和電感測量方麵,錶現齣價格昂貴,體積大,攜帶不方便等問題,提齣以單片機作為計算、控製和數據處理覈心,設計電路。利用脈遲計數法得到常用信號頻率的參數值;利用電感、小電容的元器件特性,通過測量L C振盪電路的頻率,得到電容和電感的參數值;利用測量RC充電電路時間常數τ,得到大電解電容的參數值。樣機實驗錶明,對于常見頻率、電容和電感,測量結果與標準專用測量儀相噹,併兼具便攜、智能、低成本和易于使用的優勢,值得推廣。
침대당전전용측량의재빈솔、전용화전감측량방면,표현출개격앙귀,체적대,휴대불방편등문제,제출이단편궤작위계산、공제화수거처리핵심,설계전로。이용맥충계수법득도상용신호빈솔적삼수치;이용전감、소전용적원기건특성,통과측량L C진탕전로적빈솔,득도전용화전감적삼수치;이용측량RC충전전로시간상수τ,득도대전해전용적삼수치。양궤실험표명,대우상견빈솔、전용화전감,측량결과여표준전용측량의상당,병겸구편휴、지능、저성본화역우사용적우세,치득추엄。
Currently ,most of special meter show expensive ,bulky ,inconvenient to carry and other issues at the measurement of signal frequency ,capacitance and inductance .This paper presents using a micro‐controller as the computing ,control and data processing core to design the circuit .We get the parameter values of regular frequency by the pulse counting method ,and the pa‐rameter values of the capacitance and inductance by using the component characteristic of the capacitance and small inductance and testing the frequency of the LC oscillator circuit ,and parameters values of large electrolytic capacitors by calculating the time constant τof the RC charging circuit .After many tests ,our prototype shows that the system designed in this paper is good at measuring the frequency ,capacitance and inducance compared with the special meter ,and has the advantages of portable ,intelli‐gent ,low cost and ease of use .It is worthy of promotion .