非矩形荧光显示单元伏安特性的理论计算问题

采用计入阴极位降的３／２次方公式计算非矩形荧光显示单元的伏安特性。分析等效二极管阳极电压３／２次方平均值Ｖｄ的相关范围及阳极有效面积Ｓｄ、栅阴距离ｄｇｃ的取值原则，指出Ｖｄ与阳极的形状无关，对非矩形阳极的电极系统也适用；Ｓｄ与ｄｇｃ应是互相垂直，如不符合，则取修正值；当算得的Ｓｄ大于阳极实有面积Ｓａ时，应实取Ｓａ值。以平板多位荧光数码管的“８”字符为例，选点测算，相当吻合，表明修正后的３／２次方公式对非矩形阳极的显示单元也适用

THEORETICAL CALCULATION ON VOLTAGE AMPERE PROPERTY OF UNRECTANGLE FLUORESCENCE DISPLAY UNIT

This paper raises the calculation of voltage ampere properties of an unrectangle fluorescence display unit with the help of 3/2 power formula involving cathode voltage,and analyzes the value choosing rule of the related scope of V d (the 3/2 power average value of equivalent diode anode voltage),of S d (the effective area of anode) and of d gc (the grid cathode distance),thus indicating that first ,V d is not associated with the shape of anode and applies to electrode system of unrectangle anode;next ,S d and d gc should be perpendicular to each other,otherwise choose their corrected values;then,as S d is greater than S a (the real area),choose S a;finally,the corrected 3/2 power formular also applies to the display unit of unrectangle anode by comparing the calculating value with the real value of 8 digit character of flat multidigit tube.