Donaldson G B
J Opt Soc Am. 1977 Feb;67(2):248-9. doi: 10.1364/josa.67.000248.
Standard Farnsworth-Munsell (F-M) disks and caps are numerically encoded in a two-digit, base-five, system using resistors and zener diodes connected to miniature jack plugs. When the subject orders the disks in the usual way, he connects the plugs to sockets that are in turn connected to an electronic processor. The various error scores are computed, and the error-versus-position graph plotted by a pen recorder, in a total time of between 0.5 and 2.5 min.
标准的法恩斯沃思-芒塞尔（F-M）圆盘和色标采用两位数的五进制系统进行数字编码，使用连接到微型插孔插头的电阻器和齐纳二极管。当受试者按常规方式排列圆盘时，他将插头连接到依次连接到电子处理器的插座上。计算各种误差分数，并由笔式记录仪绘制误差与位置的关系图，整个过程耗时0.5至2.5分钟。
