漳州师范学院学报：自然科学版
漳州師範學院學報：自然科學版
장주사범학원학보：자연과학판
Journal of ZhangZhou Teachers College（Natural Science)
2011年
4期
57-61
,共5页
PN结%玻尔兹曼常数%电流电压转换%最小二乘法%单片机
PN結%玻爾玆曼常數%電流電壓轉換%最小二乘法%單片機
PN결%파이자만상수%전류전압전환%최소이승법%단편궤
PN Junction%Boltzmann Constant%current and voltage conversion%least squares method%MCU
应用PN结电流电压特性关系，采用硅三板管接成共基极电路，由集成运放实现电流电压转换以实现弱电流测量．利用AT89S52单片机所具有的智能测控特点，由AD转换对数据进行采样，采用最小二乘法对数据进行处理，从而较准确测定玻尔兹曼常[k=0．41-1．44）×10^-23J／K]，误差小于5％．测量仪有手动、半自动及自动测量三种模式．
應用PN結電流電壓特性關繫，採用硅三闆管接成共基極電路，由集成運放實現電流電壓轉換以實現弱電流測量．利用AT89S52單片機所具有的智能測控特點，由AD轉換對數據進行採樣，採用最小二乘法對數據進行處理，從而較準確測定玻爾玆曼常[k=0．41-1．44）×10^-23J／K]，誤差小于5％．測量儀有手動、半自動及自動測量三種模式．
응용PN결전류전압특성관계，채용규삼판관접성공기겁전로，유집성운방실현전류전압전환이실현약전류측량．이용AT89S52단편궤소구유적지능측공특점，유AD전환대수거진행채양，채용최소이승법대수거진행처리，종이교준학측정파이자만상[k=0．41-1．44）×10^-23J／K]，오차소우5％．측량의유수동、반자동급자동측량삼충모식．
Based on the relationship between the current and voltage of PN junction, Silicon transistor connected in common base circuit, Amplification achieved by an integrated current-voltage conversion in order to achieve low current measurement. By making good use of the intelligent measure and control function of the AT89S52 MCU, AD conversion by the sampling data, Using the least square method of data processing, More accurate determination of the Boltzmann Constant[k=0.41-1.44）×10^-23J/K], less than 5%. Meter with manual, semi-automatic and automatic measurement of three modes.
