公开(公告)号：US3836845A

公开(公告)日：1974-09-17

申请号：US38529973

申请日：1973-08-03

Applicant: RCA CORP

Inventor： PAYNE M ,  MAZGY J

IPC: G01R31/28 ,  G01R27/00

CPC classification number: G01R31/2837

Abstract: Apparatus for testing the linearity of a circuit includes means for applying a staircase waveform to the circuit under test. The staircase waveform has known ratios between the values of one step and the remaining steps. The staircase waveform as altered by the circuit under test has unknown ratios between the one altered step and the remaining altered steps. Means are provided for determining the ratios of the one step to the remaining steps of the altered staircase waveform and for comparing these ratios to the known ratios existing in the original waveform. The difference between these ratios, if any, is determined and provides by way of a ratio comparator an indication of the linearity of the circuit under test.

Abstract translation: 用于测试电路线性度的装置包括用于向被测电路施加阶梯波形的装置。 楼梯波形具有一步值与其余步骤之间的已知比值。 由被测电路改变的阶梯波形在一个改变的步骤和其余改变的步骤之间具有未知的比率。 提供了用于确定一个步骤与改变的阶梯波形的剩余步骤的比率并将这些比率与存在于原始波形中的已知比例进行比较的装置。 确定这些比率之间的差异（如果有的话），并通过比例比较器提供被测电路的线性度的指示。