Hall A J, Fleming J E
J Clin Ultrasound. 1975 Mar;3(1):51-4. doi: 10.1002/jcu.1870030110.
The use of an ultrasonic delay line and mechanical arm as a means of checking the registration of contact B-scanners is described. The principle of operation is applicable to any make of equipment. The amount of misregistration can be assessed, and discontinuities or departures from the normal can be demonstrated in the transducer position sensing system. As an added benefit it is a rapid means of checking both picture size and the accuracy of electronic markers.
本文描述了使用超声波延迟线和机械臂作为检查接触式B型扫描仪配准的一种方法。其操作原理适用于任何品牌的设备。可以评估配准误差量，并且可以在换能器位置传感系统中显示出不连续或偏离正常的情况。另外一个好处是，它是一种快速检查图像尺寸和电子标记准确性的方法。
