公开(公告)号：US3783374A

公开(公告)日：1974-01-01

申请号：US3783374D

申请日：1972-04-07

Applicant: SUNDSTRAND DATA CONTROL

Inventor： EIDE M ,  CLARK D

IPC: G01P15/125 ,  G01R27/26 ,  G01R11/52

CPC classification number: G01R27/2605 ,  G01P15/125 ,  G01P2015/0828

Abstract: A circuit for detecting or sensing the ratio of or unbalance between two impedance elements, as the sections of a differential capacitor in a servoed instrument. A source of alternating current has two outputs of opposite phase, one connected in each of a pair of circuits with the two impedance elements. A diode in each of the circuits is poled so that both circuits conduct during the same half cycle. A load connected with both circuits sums the opposite phase currents and the difference between the currents represents the ratio of the impedance elements.

Abstract translation: 用于检测或感测两个阻抗元件之间的比例或不平衡的电路，作为伺服仪器中的差分电容器的部分。 交流电源具有相反相位的两个输出，一个连接在具有两个阻抗元件的一对电路中。 每个电路中的二极管被极化，使得两个电路在相同的半周期内导通。 与两个电路相连的负载将相反相电流相加，电流之差表示阻抗元件的比例。